2022 CHEVROLET SUBURBAN Power Train Problems

Hi my 2022 chevroley suburban has been sidelined for more than two months with a problem that involves my cylinder number 5 ( lifter and camshaft or crankshaft ) i believe. a well known issue with these cars. i happened just a few miles out of my warranty. when i went to chevrolet to explain to them. they didn't want to fix it. i have two young children that i take to school with this vehicle and they won't help me. this is a known issue with this model and it has been recalled many times. i'm stranded because of this car being out of an engine ... mind you the problem started well before my warranty and i was thinking that i needed some spark plugs ... by the time i realized it ... it went right over my warranty.

Summary: Sudden loss of engine power while driving due to lifter failure. Details: While driving my 2022 Chevrolet Suburban equipped with the 5.3L V8 (RPO L84), the engine suddenly lost power without warning. The vehicle began misfiring and lost propulsion in traffic, creating a hazardous situation. I was unable to maintain normal speed and had to maneuver to safety while the truck rapidly lost power. The dealer later diagnosed the problem as a collapsed lifter/valvetrain failure — an issue that GM has already documented in service bulletins (PIP5776G, 23-NA-043) and a service update (N212353840). These bulletins show GM has long been aware of defective lifters in 5.3L engines. This is not just a drivability concern. A sudden engine failure and loss of propulsion while driving poses a clear safety risk, especially when merging, crossing intersections, or towing. I maintained the vehicle properly and have all service records. I request NHTSA investigate these widespread lifter failures in GM’s 5.3L V8 engines as a safety defect, since they can and do cause sudden loss of power in motion.

Engine Coolant Control Valve sticking and causing the fan to run continuously. (P1098). Seems to be an issue with several people.

See attached document for complaint.

Coolant control valve failed and needs replaced. Which left me and my 3 children (one being [XXX] ) stranded on the side of [XXX] for 2 hours before someone could get to us. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Our 2022 suburban with the diesel motor has had 3 separate incidents where by all accounts the wheels have locked up while driving. The incidents mirror what has been described in the recall N242454440. The first time the incident occurred, we were driving while towing a light load (boat ~2500 lbs) at a steady speed of 60 mph. While driving the vehicle shook violently once, and then again about 2-3 seconds later. I immediately pulled over suspecting that maybe there was an issue with our trailer. After finding nothing we drove home without incident. Shortly after this incident we had the transmission flushed for regular maintenance at about 50,000 miles. Approximately 5-6 months later the second incident occurred. While driving with no trailer, up a mountain in NC at a steady speed of 35 mph, the vehicle shook violently and then again approximately 2-3s later. Each time the vehicle shook a loud "BUMP" noise would be heard. The road was smooth and was later driven on without issue so it was not the terrain. I once again got out and inspected the vehicle and was unable to find an issue. We drove to where we were staying and immediately took the vehicle to a dealer the following day to be inspected. The dealer found no issues and we did not report any similar problems. The last incident occurred after another 8 months while towing a light utility trailer at a steady speed of 60mph. Same thing happened with a shake and loud BUMP. However this time it was not followed immediately by an other instance. Those came approximately a minute later and then again after about 10 more minutes. I cannot recreate the issue and it seems to be at complete random and is happening while driving steady rates of speed where the transmission shouldn't be trying to shift. It seems like a safety hazard that could cause an accident.

When attempting to drive from a stop light or stop sign, after taking your foot of the brake, the vehicle intermittently completely turns off. It will not immediately restart and you find yourself stuck in the middle of an intersection creating a safety issue. The vehicle has been in to Chevrolet to have this issue fixed once already and it continues to repeat. I doubt the dealer has been able to replicate the issue as they haven't gotten the vehicle back into the shop after it's been sitting there for a week. There were no warning lights, messages, or other symptoms. It has happened to both myself and my wife, most recently on or about 7/1/25 where it happened to my wife multiple times causing us to leave the vehicle at the dealership for service. Just to be clear, the issue with the vehicle turning off is different from the standard auto stop/start feature.

Valve Body issues under powertrain factory warranty. Recall needed due to unreasonable national parts delay.

While driving on vacation our car just slowed down gave the message, “reduced acceleration, drive with care” and then shut off while on the high way. We were able to start it again but after that haven’t had that message but have had the message to service safety restraint system multiple times. I have taken my SUV to the dealership multiple times for both issues and they have said multiple codes generate but they can’t find anything to fix.

On January 29, 2025, while my wife was driving our 2022 Chevrolet Suburban with a 6.2L gas engine on a state highway, the vehicle suddenly lost acceleration and power to the wheels while accelerating to the posted 55 mph speed limit. This occurred without any prior warning, creating a highly unsafe situation in morning commute traffic. The vehicle was immediately taken to a Chevrolet dealership, where the issue was diagnosed as a failed transmission control valve. This failure, which resulted in a complete loss of power while driving at highway speeds, is a known defect affecting certain GM models. The part in question, the Transmission Control Valve, is currently in high demand and is on a national backorder due to numerous similar failures. A recall has already been issued for diesel engine models with the same problem, but no recall exists for the gasoline-powered versions like ours. Chevrolet has confirmed the diagnosis and is aware of the issue, but the replacement part is currently on a national backorder, and the repair has been delayed indefinitely. Since the incident, the vehicle has been undriveable, causing significant inconvenience, and Chevrolet has been unable to provide an estimated date for repair. The sudden loss of power created a dangerous situation on a busy highway, as there were no warning lights, messages, or symptoms prior to the failure. This is particularly concerning given that the part involved is on backorder due to the widespread nature of the issue. Chevrolet's lack of a clear repair timeline, coupled with the fact that this issue has been identified in other models, raises questions about the company's response and whether a broader recall or safety bulletin will be issued for vehicles like ours. The vehicle’s failure has not only been a major inconvenience but also a safety concern, highlighting the need for urgent attention to address this defect.

While driving from work to the gym (03/04/25), I was stuck in traffic due to a wreck; when traffic started moving again, I didn't. It was like it was in neutral and was just sitting there revving the engine. It finally started moving but clearly not functioning properly. A few miles later the Check Engine light came on with a "Reduced Acceleration Drive with Care" message displayed on the dash. I limped it into the parking lot and as I tried to back into a parking space the vehicle stalled and put itself in park. Finally was able to get it into a parking space to wait for a tow truck to have it towed back to the dealership. Chevy dealership has informed us that it needs a torque converter and a valve body (03/06/25) and they will create a "SPAC case" with GM as it is still under power train warranty. No eta on parts. Supposed to hear from Hertz on a rental (no more than $45 coverage a day; so likely not going to get a similar vehicle as a rental); no further news as of today 03/07/25. We bought the vehicle less than a month ago and haven't even made the first payment (other than the down payment); looks like that will occur and we won't even have a car to show for it.

The “add engine oil” light kept coming on and I initially thought it was because they forgot to reset it after my oil change because my car wasn’t reading it was due for one. I came to find out that my car is likely burning excess oil, according to the dealership, since all of the oil was gone. GM says that it’s normal to burn oil and as long as it’s up to 2 quarts between oil changes it’s fine. The dealership recommended that I get oil consumption test and sometimes it burned more oil than normal and other times it did not. We had to go every 1,000 miles which was an issue because it’s our main vehicle for family transportation and sometimes I would have to go under 1,000 miles because we needed it for a longer trip and would be over if waited until we got back. Also, my engine fan was making a very loud noise that would run for a while after my car was turned off and I was told multiple times it was fine until one time they checked it and it was indeed an engine malfunction and my engine would overheat when I went above a certain speed. The first fix wasn’t right and had to go back. I wasn’t burning enough oil to warrant GM to do anything.

Engine failure, losing engine coolant and engine oil. After change oil, roughly 1500 miles, engine losses about 3-4qts of oil.

On 12/28/2024, while accelerating on the highway, I received without warning a reduced engine power warning and the RPM's were racing when I depressed the gas pedal. I was in moderate traffic in excess of 55 MPH and had difficulty safely making it to the right shoulder of the roadway as traffic was passing by at a greater rate of speed than I was able to travel. The vehicle would not go more than 30-35 MPH and it would not go into reverse after I was able to make it to a safe location. It was towed to a local dealership where I was later advised it was a transmission issue (valve body). The vehicle remains at the dealership awaiting repair as there is a large backorder for the valve body (I was told 8 at this point).

VEHICLE TRANSMISSION BANGS AT 50-65MPH SO MUCH SO THAT THE VEHICLE GOES INTO LIMP MODE. CODE APPEAR ON DASH, MUST SHUT TRUCK OFF AND WAIT ON SIDE OF ROAD TIL GOES BACK TO NORMAL IDLE. RESTART VEHICLE, THE ENGINE LIGHT STAYS ON FOR THE NEXT 3 STARTS THEN CLEARS TIL IT HAPPENS AGAIN.

While traveling back from Labor Day Weekend on [XXX], I was driving in the Dallas Fort Worth area when I experienced loss of power to our vehicle on a major highway [XXX] and [XXX] ) and directly on a bridge with my entire family in the vehicle (4 kids and all of our luggage). It was a very dangerous and scary situation. We had to wait one hour for a tow truck to come and take my vehicle to the closest GM dealership. I was left stranded, 3 hours from my home with my four children and luggage. The Chevrolet dealership contacted me 9 days later and informed me the technician looked at the vehicle and determined the engine was locked up/seized. It would take 9 months to get the vehicle back into the shop to determine what caused the issue and then take 6-12 months for a new engine. I have a family of 6 and I'm left car-less for two years. Yet I still have to make the monthly payment on a vehicle that I won't be driving or be in possession of. MY BIGGEST ISSUE: GM has known that they have had engine issues for many years. Particularly, with Dynamic Fuel Management causing lifter issues which leads to engine failure, yet never disclosed this to me when I purchased the vehicle. Furthermore, they never disclosed that the issue was so prevalent that motors were back ordered for over a year. Consumers are being misled into spending their hard earned money on vehicles that have major mechanical design flaws known to the manufacturer. Once the mechanical flaw is realized, the vehicle can't be repaired for up to two years. Hiding this data from consumers should be criminal. Furthermore, General Motors to this point has been no help, with the GM customer satisfaction team telling us they can't do anything until a dealer diagnosis the issue, and the dealer stating they can't diagnose the issue until May of next year, at which time they would then look to order the motor which will take 9-12 months to deliver and install. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Truck makes a sizzling sound when parked - Car wouldnt start and needed battery jump, unknown source draining the battery - Truck has engine issues , started shaking and died in the middle of the highway, GM replaced engine - Engine replaced after less than a week, truck would not start, Gm replaced starter - After 2 days and using the vehicle once, truck would not start again. GM is trying to root cause issue but cant find a resolution Since the car stopped when we were on the highway and none of the fixes seem to be working I am worried that the car will abruptly stop again and put my life and others at risk

Engine failure at 27k miles on a highway going highway speeds (45-50 MPH). This failure happened on a night when it was 5 degrees and dropping, vehicle full of my family + my parents. Complete engine failure, no way to run heat or move the vehicle at all. Engine failure #2 at 37k miles while driving down a 2 lane road, was able to pull into an apartment complex Complete vehicle infotainment failure, not able to use handsfree device, backup cameras, front and rear safety sensors. Engine failure #3 at 65k miles on a 4 lane highway going 65-70 MPH. Was able to get to a turn lane. Engines have shuddered / lost power steering / electrical many times while going 70+ MPH on 3+ lane highways

Vehicle became disabled and will not start due to failed fuel pump control module. This could be very dangerous if this would have happened in traffic; or, if vehicle occupants became stranded in an unsafe area. Vehicle must be towed to dealership to affect repair.

When I started up the vehicle with the key fab button I noticed the cabin air blower came on as normal however when we went to the cockpit we noticed the engine was not running. When we went to start the vehicle (holding break and pressing start button) the dashboard started the Z71 launch sequence and then went to a dashboard as if I was in the normal drive mode however the dashboard was extremely dimly lit as if the backlight was not on and the engine still was not running. After several attempts to start using the brake+start button method we noticed a clicking sound that seemed to be coming from the engine cabin just in front of the passenger cabin however it would never ignite/start the engine. After several attempts to start the engine through the brake+button, we tried to just press the start button, which would sometimes be prompted on the dashboard, and get some feedback from the dashboard through better backlighting and messages I now cannot recall but never ignited the engine. When we tried again with the key fab x2 button (hoping it would either start or "cancel" the current vehicle state), we received no response from the vehicle. When we attempted to shift, it stated the "conditions were not met", which I perceived as the correct response. The vehicle was stuck in this "mode" with the air blower still running and exterior lights still on and it was only a matter of time until the battery ran out. When it ran out later that day (though not completely ded) in rebooted in the same tweener mode. However, when we came the next day with a tow truck and a fully dead battery in the Suburban, the vehicle booted right up as normal. The tow truck driver indicated several new Tahoe drivers experiencing the same issue. To me, this is a software launch issue. While the vehicle was not perceived to be in danger, it left us stranded in what could be a dangerous location. Several episodes as reported by tow truck. Unsure if inspected. No symptoms before problem.