2021 CHEVROLET TAHOE Fuel/propulsion System Problems

I noticed the vehicle had intermittent hesitation while accelerating to merge onto a freeway on the previous evening. We drove straight home from there and the next morning as we prepared to go somewhere the vehicle lost power in our driveway and now will not start. Trouble code P129F Fault code is being thrown. This seems to be related to the GM issued TSB PIP5964 and the also GM Recall N252516900 . However, GM is denying that our VIN should be affected. I'm concerned that they're not aware of or intentionally excluding vehicles that could have this issue. Had we lost power while in motion, like on a busy freeway or crossing an intersection, this could have been catastrophic.

This vehicle has experienced multiple substantial defects, several of which directly endangered my family, including an infant, and rendered the vehicle unsafe and inoperable for extended periods despite warranty repairs. Summary of defects and failures: 1.Electronic door locking failure The vehicle experienced an electronic malfunction that caused the doors to randomly lock, resulting in my infant being locked inside the vehicle when we exited. This wiring defect was later repaired under warranty but represents a serious safety failure. 2.Fuel pump recall and highway breakdown While driving my family of six on a major highway over an hour from home, the recalled fuel pump failed while in motion, leaving us stranded on the side of the highway. We were forced to arrange an Uber for transportation. This incident placed my family in a dangerous situation and constitutes a major safety-related defect. 3.Transmission failure and extended inoperability The vehicle suffered a transmission failure that rendered it unsafe and inoperable. The dealership required over one week to schedule service and more than two additional weeks before the vehicle was inspected and repaired. The vehicle was out of safe driving condition for approximately one month. Upon return, the vehicle experienced additional failures, including a dead battery. 4.Known poor design defect – rear entertainment screens The rear entertainment system screens cracked due to a widely known poor design and placement issue, unrelated to misuse. 5.Rear headrest internal mechanism failure The internal mechanism of a rear headrest failed and requires replacement, further demonstrating ongoing quality and safety concerns. Due to the number, severity, and safety-related nature of these defects—combined with cumulative downtime exceeding 30 days—I have lost all confidence in this vehicle. I no longer consider it safe or reliable for transporting my family.

I was driving on the highway at approximately 35mph when I noticed there was no response from the accelerator. I shifted the vehicle into neutral and coasted onto a side road and call OnStar for assistance. The dashboard indicator said to restart engine. I attempted to restart, but the engine would crank but not turn over (start). The vehicle was towed to the dealership where the fuel pump assembly was found to have failed and need replacement.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? Answer: The vehicle’s 6.2L L87 V8 engine suffered a sudden internal mechanical failure involving the connecting rod, rod bearings, and crankshaft assembly, resulting in catastrophic engine damage. The failure mode is consistent with the defect described in GM Recall N252494001. The engine and all damaged components are fully available for inspection upon request. 2. How was your safety or the safety of others put at risk? Answer: The engine failed without warning while the vehicle was in motion, causing an immediate loss of propulsion. This created a hazardous situation where the vehicle could no longer accelerate or maintain speed in traffic, increasing the risk of a rear-end collision or loss of vehicle control. GM’s own recall documentation identifies this exact failure mode as a significant crash risk, and that same hazard occurred in my case. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Answer: Yes. A service technician confirmed catastrophic internal engine failure consistent with connecting-rod or crankshaft damage. The dealer also verified that the engine is inoperable and requires full replacement. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Answer: No, the engine failed while in motion and was taken to the closest mechanic. Inspections by an insurance representative or manufacturer representative can be arranged. The vehicle and damaged engine remain available for further examination. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Answer: No. There were no warning lamps, diagnostic messages, or drivability symptoms prior to the catastrophic engine failure. The failure occurred suddenly and without any advance indication. All service records are available

I am writing to formally request a review of my vehicle’s eligibility for Recall N212332040. I own a 2021 Chevrolet Tahoe, which is currently not listed under the affected vehicles for this recall. However, based on the recall description and the symptoms outlined, I believe my vehicle experienced related issues and should be considered for inclusion. While driving down the highway my vehicle experienced power failure leading to a full stop in the middle of the highway, resulting in a 9-1-1 call due to safety concerns for myself and oncoming traffic. The car was later diagnosed with the fuel pump module failure that other vehicles within the same year & model experienced, which were included in the recall. Why mine wouldn’t be included is quite confusing. I respectfully ask that your team investigate whether my Tahoe meets the criteria for Recall N212332040. On 10/20 I sent in a request to the GMC recall department & on 11/11 I was denied anything further. I appreciate your attention to this matter and your commitment to vehicle safety.

While driving my vehicle shut down. It will not longer crank. Had to have it towed. I am told that it’s the fuel pump driver control module. I carry my two children in this vehicle daily. This could have ended very badly. Now not only is my family without a dependable vehicle, I am going to be out a lot of money on an issue that is already a common issue.

The fuel pump went out. We were driving, about to enter traffic, and the engine shut off. It would not restart, and we had to have it towed to a mechanic's shop. The fuel pump control module was removed and replaced.

I JUST HAD TO BUY A FUEL PUMP CONTROL MODULE 2021 CHEVY TAHOE HIGH COUNTRY THAT WOULD CRANK OVER, AND NOT START. PER INTERNET, THIS PART IS ON A MILLION CAR PART FAILING. I FOUND ON INTERNET THAT IT SHOULD BE REPLACED AT NO CHARGE. I WAS STUCK AT HOUSE AND HAD A FRIEND CHECK WITH A OB2 TESTER AND IT SHOWED FAILURE. I CALLED 2 DEALERS AND MENTIONED RECALL AND WAS TOLD THEY KNEW NOTHING ABOUT. YET ON SEPTEMBER 11TH OF THIS YEAR, GM WAS WELL AWARE! RECALL #252516900. I HAD TO GET A RIDE AND GO PURCHASE AT A GM DEALER. AND PAID $69.09 WITH TAX. PART NUMBER #13554821 GM 03900 MODULE 03.900. AND COULD HAVE BEEN A SERIOUS PROBLEM IF I WOULD HAVE BEEN DRIVING OR STUCK OR SOMEWHERE. COSTLY TO GET TOWED AND NO CAR TO DRIVE. IM HANDICAP AND CAN'T BE WITHOUT. BUT FOR A DEALER TO CHARGE. AND PLAY DUMB SINCE I WAS GOING TO HAVE TO BUY AND CHANGE AT MY HOME. WANT MY MONEY BACK FOR A NO CHARGE PART.!!!!!!!!!

Was in stop and go traffic. Car suddenly said “conditions not correct for shift” and engine died. The car would not turn on and it could not be put into neutral therefore was stuck in the lane stopping all traffic on the NJ turnpike. It created a safety issue for that reason as there was no way to move the car to a safe place until a tow truck came and had to drag it onto the bed. I have since had it repaired at a local shop not Chevrolet dealer and was told it was fuel pump failure. There was no warning or any other symptoms in facet I had just had an oil change a week prior. Had there not been stop and go traffic and I was going the speed limit (60mph), there could have been a major accident and injuries.

The fuel pump control module failed while I was driving. My vehicle shut down in the middle of the road. I was unable to put my vehicle in neutral to move it off the road. A tow truck had to come in order to get it out of traffic. The next day we had it towed to the dealership who replaced the fuel pump control module. This is a safety issue because the car will shut down with no warning while driving. It’s very dangerous. The second safety issue is that the vehicle becomes immovable without a tow truck. There is no accessible shift override to manually put the vehicle in neutral.

My 2021 Chevrolet Tahoe suddenly shaked and the engine shut off and on and nearly stalled on the road. I towed the car to the servicing dealer who has not been able to fix the issue. There is a national recall for the issue for the month of September 2021 Safety recall N212332040 for this issue but NHTSA has not added my car. NHTSA must include my car with the same issue and built in during the same month of the recall. The safety issue is the car will stop running and may block traffic or can be hit when it breaks down.

On August 23, 2025 while driving on a highway with my daughter in the backseat, my car gradually stalled while it was going through an intersection. It ended up stalling prior to a turn ramp onto another highway. This resulted in an unsafe condition and unsafe location as it happened without warning or any alerts prior to or during the drive. The Tahoe was towed to the dealership service repair shop (Hendrick Chevrolet in Cary, NC) and was found to have a fuel pump control module failure requiring replacement (replacement: FP-number 13554821, module 3.900). The dealership service department acknowledged this is a part failure on the manufacturer end; however, mentioned this is a safety bulletin, but not a recall for the part. Due to the Tahoe being outside of warranty timeframe, this ended being an out of pocket expense. The service staff told us there were four other Tahoe vehicles waiting for this part at the dealership, and we waited over a week to obtain the part as it had to come from the manufacturing line. Due to the timeframe for repair (>1 week), we had associated rental car payments that was not provided by or covered by the dealership/manufacturer.

I own a 2021 Chevrolet Tahoe High Country (VIN: [XXX] ). My vehicle is subject to Recall #N252494000 (NHTSA #25V274) concerning the L87 engine and potential loss of propulsion. On [XXX], I received a “Low Oil” warning for the second time within a few months. This recurring issue matches the recall description. I contacted my local dealer, Kramer Autoplex (Livingston, TX), who confirmed the recall but stated no remedy is available. I am deeply concerned about safety, as the engine may suddenly lose power or sustain damage, leaving me and my family stranded or at risk of a crash. At this time, I have no assurance that my vehicle is safe to drive, no remedy is being offered, and I have already incurred expenses related to monitoring this issue. I am requesting NHTSA’s support in ensuring GM provides an expedited fix or interim assistance for affected owners. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tahoe died while stopped, did not want to restart. Finally restarted and had no power when pressing the gas. Died again. Would not restart. Towed to dealership. Onstar identied it as a fuel management system error.

The fuel pump power control module went-out, and my 2021 Chevrolet Tahoe would not start. The fuel pump power control module part number is 13554821. That part is not subject to any existing recall. However, part number 13544060, fuel pump control module, for 2021 Chevrolet Tahoes is subject to recall N2123320240. The parts appear to be almost identical when you compare diagrams. locations, and pictures on-line. I would like to request that part number 13554821, fuel pump power control module, be added to the recall. Thank you,

The fuel pump power control module failed. The service center tested the vehicle and the error code was for this component. I do not believe the service center kept the part. The part failed while driving, the engine stopped running and the vehicle lost all power with no warning. I had the vehicle towed to an independent service center where it was confirmed through diagnostics that the component had malfunctioned. Prior to and during the failure there were No warning lights or signals to indicate there was a problem prior to the vehicle shutting down.

2021 Chevrolet Tahoe original owner. Fuel control module failures. 1. Failed on 6/29/21 at 5,068 miles. Dealer replaced with GM Part #13537053. 2. Failed on 8/15/22 at 12,130 miles. Dealer replaced with GM Part #13544060 3. Failed on 8/1/25 at 41,247 miles. Dealer replaced with GM Part #13554821 On each failure, vehicle was unable to shift to neutral, power remained on, electrical component began shutting down to conserve power, left stranded and required towing with rear wheels being dragged locked up onto tow truck. Once power was shut down, could not operate windows or lock doors other than keyed driver's door. Th entire failure mechanism puts the driver in an extremely unsafe situation. Recall notice #21V739000 was issued on 9/23/21 with to impacted notified owners on 10/14/21. Did not receive this notification since first failure was prior to recall and assume GM considered vehicle repair completed. Note that the fuel module part number has changed 3 times in my case, but Part # 3554821 replaces 5 other listed part numbers. Is this the 6th iteration or of this part? What is the root cause of the fuel module failure? Is it the module itself failing or an electrical issue that causes the fuel module to short out and fail. GM/Chevrolet is not solving this issue. With 3 failures of the same component, this is a lemon and I have no comfort or confidence using this vehicle. When will the next failure occur and what unsafe situation will this leave me stranded in? Read this issue applied to 2021 and 2022 GM full size SUV's and now reading issues through the 2024's. Unacceptable and poor quality. GM needs to be held accountable to solve the root cause of these failures and stop putting a replacement band aid on the problem.

my fuel pump failed while driving on the highway with my whole family. i lost all power and my gas pedal lost all compression. I was barely able to pull off the road safely. no indicators flashed on my dash, no warning just a total loss of power and control. after pulling over, i let the truck sit for a second then tried to restart. it wouldn't. at that point, the yellow check engine indicator turned on. I logged into MyChevrolet and Onstar to see if any notifications were available to help diagnose, but nothing stood out. all systems appeared to be perfect at last check. I check temp and it was normal, oil level, normal. battery level, normal. Key battery, normal. i then started to google why my 2021 tahoe would die while driving and came across and widely known recall for 2021 GMC Full Size SUVs including Tahoes with faulty fuel pumps. my issue matched exactly to the description of what would occur. I did a quick search to see if i missed a recall notice for my truck, and didn't see anything. I was able to get my truck home and then to a dealership for a diagnostic. the only code that was discovered was for the fuel pump/fuel pump module. The dealership is now stating my vehicle doesn't qualify for a recall repair because my VIN doesn't appear on the affected vehicles list and that repairs will total $859.68 out of pocket. however, they also stated that early builds for this year may not have enough evidence. i ordered my truck, built to spec 6 months prior to receiving it. i would like my VIN added to the recall list. I have kept immaculate care of this truck and this is a known safety issue. this is my family moving rig. I don't want it to be unsafe.

Fuel Mod failed. Exactly like recall order. My unit not on recall list.

Automatic fuel management/ Displacement on demand caused lifter failure which caused cylinder failures.

My [XXX] and myself were going down the interstate and my Tahoe started to sputter and the gas pedal no longer worked. I had to get over to the shoulder of the interstate because my vehicle would not accelerate. It turned off as I was navigating to the shoulder. Thankfully I was able to get there safely without causing an accident. The vehicle completely turned off and would not crank leaving us stranded on the side of the road. I called my husband because I did not know what to do. I kept trying to start the vehicle and it would sputter, but not start. Finally after multiple attempts it cranked up and I was able to get home. The vehicle has not been inspected yet by a dealership; it will be taken first thing in the morning. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving home from a long trip and heard a large pop. Several warning signs and messages began popping up and the vehicle was shaking and struggling to maintain speed. I was able to get home and get my family out of the vehicle and get it to a dealer down the road. They stated the Fuel injector and harness had failed.

several issues with certain popups regarding various indicators on dash and engine not getting enough psi

Vehicle shut off while being driven in traffic, almost causing an accident at intersection due to a failed fuel pump control module. Engine code given was a P102a. Vehicle was unable to be restarted and had to be towed to repair shop.

Unknown - engine is driving hard and somethings wrong. No one will service my car because they say it’s on a recall, but then when they look up the VIN number it’s not on a recall however there are major issues going on.

Instrument panel has failed twice and is unresponsive. The gauges move and stay to the left after moving left to right. All lights begin to cycle through error messages. I have video of the issue both times it happened. When it occurs, you don't know your speed you have to guess, the full tank reads empty etc., and it is dangerous to back up. The vehicle has been diagnosed by one independent mechanic and is currently at the dealership. There was no warning before the instrument cluster failed other than a cycling through of warning messages service transmission check 4X4, service suspension system, service Power Steering Drive with care. -The center screen goes in and out. -When in reverse, the rear camera is black, the screen blinks intermittently. - Dealer has stated that the wires are put on incorrectly- if that is the case, I am not sure who would have done that other than the manufacturer. -previously reported there was a strong gasoline smell in the cabin that made it really hard to breathe. Dealer corrected. Right passenger side is intermittently wet with no cause from the interior creating stale smells, making it hard to breathe. It is important to note this is the side where the electrical wires are "put in incorrectly" according to the dealer. I also have a video of what occurs

Check Engine Light Came On. Upon Diagnosis', the engine is misfiring, lifters are not performing correctly and there are critical engine alerts and an estimate of 11,000 to fix. 2021 - 83,000 miles v8 - 5.3 NOT the 6.2 and no one will help me bc my power train expires. I am the only owner. Second brand new Tahoe ai bought from this dealership and they are doing nothing to help.

Check engine light comes on. Car suddenly stalls and engine shutters, shuts off and on. Goes into limp mode as engine shutters at about 15 miles per hour. GM has not included this 2021 Tahoe which is the same exact condition under Product Safety Recall N212332040 "Stall While Driving". That recall was issued at the same time or month as this Tahoe was built and sold and should have been included. This Tahoe was towed to the dealer and GM has not been able to supply parts. The Tahoe will soon have been at the dealer for 60 days with no solution. The recall build dates should be expanded to include all GM vehicles with this defect. It is explained as: "The fuel pump power control modules in these vehicles may contain a supplier manufacturing defect that can cause the fuel pump to fail or operate intermittently, interrupting the flow of fuel to the engine. If the engine does not receive adequate fuel, the vehicle may unexpectedly stall. The driver may see a check engine light, receive an OnStar notification that a Diagnostic Trouble Code has been set, or experience a rough running engine. The vehicle may also be placed into a reduced power mode. A vehicle stall without warning could increase the risk of a crash, especially at high speeds"

On May 14, 2023 I was on a trip driving the Tahoe (midnight blue Tahoe in the pictures) about 60 mph, on highway 41 (middle of nowhere, no cell reception) south of kettleman city, CA when, without any warning or symptoms of any problem whatsoever, the engine lost propulsion and died. I was able to coast onto the shoulder and tried starting it. It started again and I continued driving and about 35 minutes later I stopped at a red light on Highway 41 in Lemoore, CA. Again the Tahoe engine died without warning and would not restart. When I tried starting it I could smell a burning smell. The engine cranked but wouldn’t start, and then the check engine light came on. I was at a stoplight on a major highway and was unable to move the vehicle, and was scared to sit in it, so I put on the vehicle hazard lights, got out of the car and ran to the side of the road for safety. Luckily I did not have my children with me. I called 911 and a police officer came and parked behind my vehicle with his lights on so hopefully no other vehicles would hit it. A tow truck was immediately dispatched as high priority by the police. I had it towed to Hedricks Chevrolet dealership in Clovis, California, who informed me there was metal parts in the oil and that the engine was destroyed and had to be replaced. It took several months to get the engine replaced and in the meantime, I bought a new 2023 Cadillac Escalade so I would have a vehicle to drive. The Cadillac Escalade ended up having an extremely similar problem (and I will file a separate report for that vehicle). A few months later when the Tahoe replacement engine was installed I picked up the Tahoe from the dealership and sold it to Carmax.

Vehicle smells heavily of gasoline/fuel exhausts to the point of headaches. Vehicle obtained just over one year ago currently with dealer.

I was driving the vehicle, exiting the parking lot when the engine and all electrical components turned off. This could have easily caused and accident as there were multiple vehicles that had to go around me while I tried to restart the vehicle. The engine would crank but not start up and left me stranded in the middle of the road AND in the middle of two lanes. When I finally got the vehicle towed several days later (which was not easy because in order to put the transmission in neutral without the engine being on, a special tool is needed) I took it to the dealership. They confirmed it was the fuel controller that went bad for the second time. The first time the vehicle was stuck in my garage at home with the same symptoms. They apparently replaced it with another faulty part that is a ticking time bomb. I have no faith that this won't happen again.

Fuel Pump Module Failure at 27k miles, experienced total loss of power while driving. GM issued a recall for this part in other 2021 Tahoes, but said my vehicle is not included in the recall. Researching online this seems to be a large problem with this model year, yet they did not recall all vehicles. Clearly mine was effected.

2nd glow plug failure

Driving at 35 MPH and the engine cutout and stopped on 8 November 2024. I was able to pull over safely as I was on Vandenberg Space Force Base, but at highway speeds in traffic this would have been very dangerous without power. The local GM dealership at Lompoc, CA confirmed the fuel pump control module failed, which caused the loss of engine power. There was a recall for the 2021 Tahoe fuel pump control module, but my VIN was not included in this recall. Currently the fuel pump module is not in stock and GM has no estimation for when the part would be recieved

This is in addition to complaint # 11621324 The dealer now says it is the FUEL PUMP MODULE that is bad. Same item as on previous recall. They say it will be covered under emission warranty but not the fuel pump. At $1500 for fuel pump. However - they replaced fuel pump before discovering the module issue. They either did not test fuel pump properly, or, fuel pump was not bad, only the module. Or, if bad, the module caused the fuel pump to fail. Either way the fuel pump should be covered under this module recall too as a related cause from the faulty module(s) that were recalled.

I was stranded and had to have my vehicle towed after the fuel pump control module failed.

Vehicle has 10,800 miles. The vehicle repeatedly failed to start. Towed to GM dealership. They say the fuel pump has failed. They say it is not covered (beccause my VIN isn't within the recalls that already exist for this exact same problem). The cost is over $1,200. I contacted Chevy corporate and they offered to cover 30%. The dealership is still awaiting the part(s) with no provided delivery date. This could have caused a serious MV accident if it had failed while driving. The vehicle gave no warning of this failure.

Engine would not start. When pressing the start button, engine would turn over but would only rough idle for a few moments then turn off. Called garage and had vehicle towed. Mechanic advised computer showed defective fuel pump power control module. Mechanic advised GM has recall N212332040 for defective fuel pump power control module but my VIN is not included. Mechanic ordered fuel pump power control module from GM and replaced on my vehicle. This corrected the problem. I am requesting my VIN to be added to the recall and GM to pay for the part, labor and towing.

It’s happened about 10 times since I’ve owned the car but the dealer can’t recreate it so we are out of luck. The vehicle accelerates on its own. Scenario 1…with constant light steady acceleration, it will lurch forward like I’ve stomped on the accelerator a bit, for about a second then go back to my normal input. Scenario 2, same lurch but this time while coming to a stop at a stop sign WITH MY FOOT ON THE BRAKE PEDAL ONLY. scenario 3…I’ve been using the adaptive cruise control and had it disengaged by braking, coming to a stop, then parking and turning the vehicle off. Then after getting back in and starting up and slowly pulling forward, the cruise control suddenly and abruptly renegages and attempts to accelerate to the last demanded setpoint. Image this scenario pulling out of a spot at a crowded gas station with pedestrians. I almost ran someone the hell over just now at the gas station and I’ve had enough. The dealer won’t do anything and when I called Chevy engineering they put zero effort into it, it was a 20 second phone call stating if it can’t be reproduced at the dealer there’s nothing they can do. This is absolutely completely 100% dangerous and unacceptable

In September 2024, our vehicle was unable to be start with engine light on. We were unable to get the car into drive or neutral. We were forced to pay out of pocket to have the car towed to dealer, which it needed to be dragged onto the tow truck. Upon inspection at the dealership we were told it was the fuel pump control module that failed and needed to be replaced. They searched recalls and found none on our vehicle but did comment they are replacing these a lot on same type of vehicle. The part was out of stock & backordered likely due to multiple issues, and took 2 weeks to arrive. Reviewing online many have experienced same issue while driving, luckily, we were not. There is an open recall on this part for many models of the same year and time, but for one reason or another our vehicle is not part of that recall #21V739000 / GM #N212332040. The replacement was covered under warranty but does not cover the tow of almost $300.

Engine began to stall while driving or would not restart after parking. Happened one time while driving on highway [XXX]. Towed to dealer. Same fuel pump issue as recall N212332040 however that build date window closed March 4 2021 and my Tahoe was built in June 2021. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Driving on the I-95 I abruptly lost power driving in the left lane, RPM dropped all the way down and speed was rapidly decreasing. I had to pull over on the shoulder in the most safe manner possible for myself and other drivers on the road; but it was not without any risk. The body of the car was rattling on my way to the shoulder and the car shut off before I could put the car in Park in a safe place. With my hazard lights on I tried restarting the car but the enging would not turnover, the starter would run and the car would rattle about all whilst creating a traffic jam. Once i noticed the engine light and yielded to the car's inabiltiy to start up, we got the attention of a FHP State trooper who called in a Tow truck for us. Getting te car onto the tow truck in traffic also increased the risk associated for everyone involved. Aftert succesfully oading the car, which was no smooth task as the car could not shift into Neutral; we took the car to my local Firestone. After a diagnostic test done the following morning, we were notified of a fuel pump issue that has been on the recall list for my vehicle, but NOT associated with my VIN.

Stopped for gas, then proceeded to leave store, the check engine light came on, and car immediately shut off while on the highway going ~25mph. Car would not turn back on, and then lights for fuel machine error started coming on. Car sat there trying to turn on, lights off, and then would say push start button, but nothing happened. Car began to shake and continued to try to turn on, yet nothing happened. Car was towed to home, sat for an hour and then started again, check engine light remains on.

Several times over the last month, or so, my 2021 Tahoe has hesitated to accelerate while driving. On 7/31/2024 the vehicle was in park, turned on when the vehicle began idling VERY hard, shaking the entire vehicle. The engine was turned off and restarted approximately 10min later. I began driving when the vehicle began shaking, the engine light came on, and the engine then turned OFF while in drive, actively driving down the road (with my child in the vehicle). I coasted into a parking lot and attempted to restart the engine several times, without luck. After sitting for approximately 45min the engine restarted, and I was able to get home. The engine stopped and restarted several more times that evening, without issue. The engine light turned off. The following day the vehicle ran without issue, no engine light on. We took the Tahoe to Total Performance Repair shop where they ran a diagnostic scan of warning light history. The diagnostic scan came back with codes P023F and P129F; fuel pump issues. There is currently a recall for fuel pump module failure on some 2021 Chevy Tahoe vehicles. My specific vehicle is not included in the recall but is experiencing the recalled issues.

Other vehicles of my year and make were recalled. My car was manufactured 8/14/21. I was driving on 6/12/24 and my Car died. I had power. I had fuel but fuel was not getting to the engine. It turns out it was the fuel pump control module that many others were recalled. This could have been a very unsafe situation for me as it died in a traffic lane during morning rush hour. It would not start back up for me. My dealer diagnosed it very quickly and is repairing it in 2 days time. Had I been on the freeway, someone would have rearended me. My car has 22,000 miles on it.

When turning left in cross traffic, the truck stalled. It would crank and try to run, but not start as it wasn't getting any gas. The gas tank was full at the time. The failure was very similar to when I was stranded with the fuel issue in 2021 a couple of months before the recall for the fuel pump failure was issued (NTSA # 21V739000). Fortunately, it did start momentarily so that I could get out of oncoming traffic so that I wasn't t-boned. I was able to get it home, but it failed multiple times in the 8 mile trip back to the house. We will not drive this vehicle as it is unsafe to drive and now we are left to tow the vehicle to the closest dealership which is 50+ miles away. It seems this part only works a few years and then fails.

I was parked with engine on idling and the engine shut off. Tried to restart and it started shaking very rough idle, I turned off and tried to restart it would not start, I tried again and it started shaking again and shut off but the displays stayed on in the car. I called the Chevy dealer and had it towed to them. They ran diagnostics and confirmed it was an internal short inside fuel pump driver control module. They replaced and tested functional now. This is the second time they have replaced this part. The first time was last year driving when the engine decelerated and shut off. This is a safety issue and could be hazardous. My concern is this will happen again and I could be put in a very dangerous situation. I saw a bulletin issued for my vehicle with the same type of issue but my vehicle was not recalled to address Product Safety Recall N212332040 Stall While Driving Copyright 2021 General Motors. All Rights Reserved. Page 1 of 4 Release Date: October 2021 I am not sure if this is the same part or another issue.

Service engine light came on, took it to Chevrolet dealership (2 months outside warranty). They found p2459 for regeneration frequency, performed necessary dpf regeneration procedure and was successful in completing and regeneration event, applied smoke to exhaust system for testing purposes and found large exhaust leak at rear tail pipe connection necessary to install new graphite seal and clamp. Also, found coolant leak at rear of engine on passenger side, upon further inspection found egr cooler coolant hose's actively leaking. necessary to replace hose's at this time. They do not want to release the vehicle back to us for “safety” reasons, while a part has been back ordered for 6 weeks. Doing some research, it appears there has been a trend of issues with the exhaust tail pipe, which is excluded also from extended warranty. I’m surprised, given the frequency of this on a newer vehicle that it has not yet been recalled. The coolant hose is a different issue, but likewise surprised it is not recalled.

My car suddenly stopped while driving on the highway , no warning signs I had to be towed . My car in now at the Chevy dealership, was told was " fuel system issue"

As a traffic crash reconstructionist, the issue is a MAJOR SAFETY ISSUE. My wife was exiting a residential driveway when the vehicle started to stutter and immediately shut down with no power or any capability to get the vehicle off the road. The shutdown caused the blockage of a residential street on a Friday afternoon, until the correct tow truck arrived. This was due to the fact the vehicle could not be moved due to not being able to start the engine nor the ability to place the vehicle into neutral, without starting the engine or crawling un der it with tools. It was determined the fuel module went bad. There was no warning of the failure of the component. Luckily the shut down of all components of the vehicle did not occur on a high speed or highly traveled road since I did not have any control of the vehicle after the fuel module failed. This is not the first report of the issue to NHTSA. Hopefully something will happen to find a fix to put the vehicle in neutral without tools, for the safety of the motoring public.

My wife was driving our vehicle and had (fortunately) just turned onto our quiet street. As she was heading towards our driveway, the car turned off. We couldn’t figure out the issue. After paying for a tow to Sterling Chevrolet in Mount Pleasant, SC, we learned that the fuel pump system had died. This was at 36,071 miles (71 miles over our warranty). We were then told that there had not been a safety recall on the fuel system for our 2021 Tahoe z71. It wasn’t until later that we learned there HAD been a recall and I’m not sure how to handle this. The recall occurred before we took possession of the vehicle (8 months before), thus we were never notified. Per the maintenance records, the fuel system had never been repaired nor was a part replaced on this vehicle. Thus, I believe our vehicle would roll up under this recall and we should be reimbursed for the repair expense.

The fuel pump power control module failed. We were driving on the interstate going around 75mph with traffic. The car suddenly lost power dropped to 60, 40, 20 in 5 seconds. We barley made if off the hwy`s left side when the Tahoe died. Would not start back up and locked in park. Had to be towed on a flat bed dragged up the bed and brought to the Chevy dealer who confirmed the fuel pump power control module failed and replaced under warranty. We have a 2021 Tahoe, there is a recall for this part but it did not include our vin. Really scary breakdown and could have been hit by another car.

The vehicle stalled without warning, while driving. After taking it to the dealership they said it’s the Fuel Pump Power Control Module. After further research I see this has been under recall, however, my vin doesn’t show a recall for this.

The vehicle stalled without warning, while driving. After taking it to the dealership they said it’s the Fuel Pump Power Control Module. After further research I see this has been under recall, however, my vin doesn’t show a recall for this.

Vehicle is sputtering and jerking while driving When slowing to a stop vehicles engine will shut off. I do know that the 2021 Tahoe has recalls on the fuel pump issues but not sure why my vin number isn’t covered under this recall. This is a 2 year old vehicle and already has recalls on this year model on its fuel pump. At this point it is barely driveable and is a danger for myself and my family to drive.

While sitting at a stop sign the vehicle began to stall. I was able to drive 50 feet and it died in the road. The Tahoe is not getting fuel to start. Starter continues to try and engage upon start but the vehicle never engage. The fuel pump drive module seems to be an issue. I can't get the car out of park to have it towed to the Chevrolet dealership. This is consistent with other Tahoe recall vehicles having the same issue.

Fuel Pump Module malfunctioned while driving, causing vehicle to shut down in middle of street. Very alarming when car died while driving, fortunately was not driving at a high speed or on a busy street/highway and was able to move to an exit lane without incident since no shoulder on street, did cause quite a traffic jam (very stressful). Vehicle was towed to dealership after could not be jumped started. Dealership confirmed faulty fuel pump module. Currently at dealership & will be for a while due to part backlog. Received no warning lamps, messages or other symptoms prior to this incident.

On Wednesday,Sept20 2023 I was traveling eastbound in the passing Lane on interstate 90 in New York when my Chevy tahoes motor began shaking violently, chugging, and losing power. The check engine light illuminated. The engine stalled as I frantically tried to move to the berm. There is a lot of large semi traffic on that road and I had a difficult time maneuvering safely without power to get onto the side of the road. I was unable to move completely into what I felt to be a safe area. I continued to try to start the motor after about 10 minutes I was finally able to get it started and move it to an exit where it was towed to community Chevrolet in Meadville Pennsylvania. The Chevy dealer at this point has told me it is a fuel pump problem and they are on back order and there is a strike by the auto workers. They are unsure as to when I can have this problem remedied with the parts that are needed.

We were driving down the road and as I tried to accelerate the car would not go. Then I realized the car said push to start. My husband tried to push the neutral button and told me to restart it but I said you have to push the brake. All this is happening as we are coasting down a main road with speed limits of 55mph and my family is in the vehicle (including 2 toddlers in the back seat). Once we coast to a gravel area off the road I push the brakes and try to restart. My dash goes all black and I try to restart. It tells me battery low push to start. The starter engages and stays engaged until I push the start button again to turn off. The screen tells me it is shutting down functions to save battery. The check engine light is on. We tried 3x with same results. Finally we get out and my parents come to us. Within 15 mins of the initial incident, my husband and dad get in and start my vehicle. My dad suspected the fuel pump. The fuel was right under 1/4 tank but not low enough for the fuel light to be on. They drove to the fuel station, approximately 2 miles away, filled up the tank and drove it to an auto parts store who connected it to a diagnostic machine and it read fuel pump. They drove it back to my home, approximately 2 more miles. The check engine light is still on. I will call the dealership tomorrow. The vehicle has 23,000 miles and is still under manufacturer warranty.

Sudden engine shutdown in the middle of traffics. Vehicle was towed to a Chevrolet dealer. Chevrolet dealer replaced fuel pump power control module.

The suit also says the lifters in affected engines were installed in an incorrect position in the lifter guide and do not always conform to design specifications. Plaintiffs claim their vehicles needed frequent valvetrain maintenance, including “more frequent oil changes, engine flushing and cleaning and/or replacing the valve lifter oil manifold and its filter at regular intervals.”

My Tahoe was running fine and then when I shut it off and returned 30 minutes later it would not start. I had it towed to a nearby dealership and I was told that several similar incidents have happened with my make and model where the fuel pump control module went bad. A technician replaced the module while it was in the tow truck so it could be unloaded and it started up. I was told that GM is aware of the issue and I have not heard about it and believe there should be a recall to replace these faulty modules.

I was driving the vehicle and it suddenly lost power - going from 55 MPH down to 0 then the engine just stopped. No warning lights went off, no stalling, no engine noise- completely lost power. Would not start after that for 20 minutes. Started after 20 minutes- and ran fine -like nothing happened. Had it towed to dealership where they diagnosed the problem as electrical. Two weeks later still waiting for the part. Dealer says it could be up to 3 months before they could locate the part.

Fuel pump control module diagnosed by the Chevrolet dealer in Iowa City, IA (Billion Chevy). We were on the interstate when the vehicle decelerated rapidly while passing a semi tractor trailer. I was able to control the vehicle and move to the right lane after the semi trailer went by and other cars moved back quickly. No warning light until the incident.

FUEL PUMP MODULE FAILURE. ENGINE DIED AT A STOP LIGHT AND WOULD NOT RESTART. UNABLE TO SHIFT INTO NEUTRAL TO TOW OR REMOVE FROM HAZARDOUS ROADWAY. PART ON NATIONAL BACKORDER.

I have an on going problem with the emissions system on my 2021 Tahoe. The vehicle discharges raw diesel fuel and DEF from the exhaust tail pipe during cold startup. This discharge is overwhelming and is so strong it can be detected by smell from over fifty feet away. In addition to this issue the fumes enter the inside of the vehicle and at times it is so bad you need to open the windows. I believe this problem is unsafe as it poses a fire risk and a CO exposure risk to the vehicle occupants. The vehicle has been in the shop repeatedly for the past eighteen months with various parts replaced. To date none of the repairs have fixed the problem. In February GM issued a statement saying that this is normal operations.

without warning the engine shut off and lost power while driving. the engine light came on. i was able to pull over to the side of the road. I'm glad I wasn't at interstate speeds, that would of been bad. It was like i ran out of fuel. it was the fuel pump power control module according to the dealership.

See BBB complaint #18695782 filed 1/6/2023. See NHTSA ID# 11500111

Car stalled while driving on the highway, no warning, car became unresponsive and we almost had an accident attempting to move car off the highway. This was an extreme safety risk. Car was dead, unable to start. Towed car to dealership, told it was the fuel control module that was not working. Found out this was a known issue for 2021 Tahoe, no recall was issued for my vehicle, no one notified or warned me of the risk.

On November 9th, 2022 my wife was returning from the store when our Tahoe lost power and the engine shut off. She was able to pull off the highway onto a side street prior to the engine shutting off. I met her at that spot to see what was going on with the vehicle. The car was parked on a slight hill and after checking the oil and other fluids I could not see an issue with the car and the car would still not start. I was able to tow the car to a flat spot and checked the fluids again. After about 45 minutes the car did restart with the check engine light on. We were able to get the vehicle to an auto shop about a 1/4 mile down the road where they were able to hook up their reader and see what the check engine light was for. A code of P129F came up which is the fuel pump module, pictures attached of screen. We then were able to get the car home and it was towed to a Chevy dealership the following day. There techs were able to find a recall number of 21V739000 which was issued on 9-23-2021 showed that this happened in certain 2021 Tahoe's. While our vin number did not fit into the vin numbers on the recall number I still feel this was the issue. I feel this could be a bigger safety issue with other vehicles on the road that did not fit into that recall could still have the issue. While we were lucky and know one was injured the next people may not be so lucky. Also since our Tahoe was not in the range of VIN numbers on the recall we are being forced to pay out of pocket 521.81. Which I will be fighting Chevrolet to pay us back.

Recently, while idling in parking space the vehicle stalled and engine and fuel lights came on. The vehicle was towed to the nearest dealer, and the diagnosis was a failure of the fuel pump control module. The vehicle has less than 10,500 miles. The dealer stated that over the last four days, two other vehicles were brought in for the same issue.

First fuel system failure occurred at ~3500 miles. Pulled out of driveway, shifted into drive and vehicle stalled and would not restart. Fuel pump replaced first then fuel module replaced resolving issue. Now at 12,100, vehicle again shut down at a major intersection and would not start. Vehicle has been towed to dealership. The vehicle failure mechanism locks the car in park and leaves all electronics powered on. Fortunately I was able to get the front wheels strait during one sputtering start attempt so it could be DRAGGED straight onto the tow truck. Able to power off radio and ac buT no other electronics would shutdown, dash display, resulting in total battery drain. Can only lock drivers door with key so vehicle is outside dealer service center on a weekend unlocked. This the second failure of the same component. This abrupt failure creates a completely unsafe situation leaving you stranded unable to move. This vehicle is an expensive failure and based on a second recurrence, the related electronic component issue has not been resolved. First occurrence Chevrolet provided a free year of OnStar due to me not feeling safe with this vehicle. Now just after this expired, the same failure has occurred. Buy this vehicle back from me Chevrolet at my purchase price. First occurrence took 3 hrs for a tow truck to pick up the car which was fortunately in middle of my street. This current failure was 2.5 hrs stuck at a stop sign in the middle of a major intersection. Thank God I was not on the interstate.

INTERMITNLY STALLS WHEN DRIVING at dealer now being addressed no warning light before issue happened three times now starting in April

I encountered the same issue which most of the other complaints on here saw where the engine lost power (due to one cylinder misfiring) suddenly and it was due to a faulty lifter in the engine. Fortunately, I was able to limp the vehicle back to my house where it could be towed, but had it been worse it could've stalled in an intersection and I'd be unable to move the vehicle due to how the engine must be running in order to put it in Neutral. GM really needs to recall the engines that are affected by the lifter problem as this issue is showing up on several forums online along with this site. My engine date code falls within their TSB, however they only replaced one bank due to my mileage being over 8,000 miles. That means that I most likely get to look forward to more issues soon with the other bank of lifters as they're of the same faulty design.

This model engine stalls/cuts out acceleration because of valve lifter problems. While Chevrolet has repaired many of these engines, they are waiting until the check engine light comes on (or flashes) to initiate the warranty repair. It is very possible to be miles from a dealer, requiring a tow, and the dealer not having the repair parts in stock.

After turning off a major highway (65 mph) onto a side road after driving for approximately eight hours, the transmission shifted into N...on its own. The engine continued to run but the vehicle would not move. We could not shift into P, R or D. When attempting to shift into P, R or D, an error message appeared on the dashboard that said "Conditions not right for shifting." We turned the vehicle off and then back on and the error cleared. The vehicle continued to drive "normally" for another two hours and the end of the journey. Had this happened in the middle of heavy traffic, a deadly accident could have occurred. Mileage on vehicle is 4,900. Date: 13 July 2021 at 1800 hours. Dealer has been notified but has taken no action to date. There were no warning signs or messages prior to the incident. I'm guessing it is a sensor or software problem related to the engine/transmission. There is a paragraph in the Owner's Manual that states: "Under certain conditions, propulsion will be disabled. Try restarting after the ignition has been off for two minutes." It offers no other explanation as to what "under certain conditions" means.

On July 3, 2021 approximately 2:00pm EST. Left to go out of town, had driven about 50 miles. Stopped to top off fuel. Left station for fueling stopped at red light to turn left to get back on interstate. The vehicle stuttered, stalled, and would not restart in middle of intersection. Hazard lights put on nearly hit by other vehicles. State trooper had to get behind vehicle to let other know of hazard. Towed to nearest dealer. Onstar diagnostic revealed fuel management system and transmission. Dealer hasn’t contacted but service advisor from GM notified me it was fuel pump.

We have owned this 2021 Chevrolet Tahoe for a little less than a year. Since acquiring this vehicle, there have been multiple safety recalls and we have had to get the vehicle serviced 3 times due to electrical issues. Now for the major safety issue, was out of town waiting at a red light in a turning lane. As we were waiting, the Tahoe spontaneously turned off. All of the indicator lights on the dashboard were illuminated and my husband tried to restart the car but the engine just kept turning and the car would not start. We put the hazard lights on and wanted to get the vehicle out of the road where there was active traffic. However, the vehicle was unable to be shifted to neutral so we were stuck and also important to note the hazard lights were not working. We towed to the nearest dealership and tow driver had to apply WD40 on the ramp to get the truck off since it wouldn't shift to neutral. At the same time, my husband received an email from OnStar "An issue with the Engine and Transmission System in your 2021 Chevrolet Tahoe has been detected." Now being told by dealership this was caused by a fuel pump module cut off, causing the car to go into "limp mode" so who knows what is true. I do not feel safe driving this car nor having my kids in it. This would be a very different conversation if this happened on a highway. This vehicle should be recalled because someone gets killed.

May 6, on vacation, sudden engine failure, valve lifter and lifter rod. GM told dealer only to replace lifters on one side, Cyl 5 was problem. May 24 car ready, pickup and 68 miles later same problem while on I95 in SC. Did not trust engine and drove in right lane. GM played Russian roulette with our safety and that of other people on road. Sudden engine failure can result quickly in accidents with possible casualties at highway speeds. After pulling of I95, called GM Road assistance. Towed to dealer. They were of no help. Family member from CHS , SC send trailer to bring us all the way home in New Smyrna Beach Fl. While on phone with GM Road assistance we idled the engine to keep cell phone charged. Suddenly engine stopped and on restart heavy smoke came from tail pipe. May 25 car delivered to dealer in NSB where we bought car. May 27 they informed us same lifter/rod problem occurred on other side. Look at Chevroletforum.com and you will see 2021 6.2 engine having these problems within 8000 miles. Have been in contact with GM customer Assistance Center since May 14. We do no longer trust this engine. GM already decided to redesign the lifters as they are aware of the problem. NO recall has been issued yet. Consider this a serious highway safety issue. Do not consider the car a lemon, but yes the engine sure is.