2018 CHEVROLET VOLT Electrical System Problems

The contact owns a 2018 Chevrolet Volt. The contact stated that the battery module became inoperable. While attempting to start the vehicle, the message "Engine Unavailable - Service Soon” was displayed. The contact was unable to use the vehicle. The contact stated that the TPMS warning light was illuminated. The contact associated the failure with Technical Service Bulletin: 18-NA-261. The contact called the local dealer and was referred to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 111,000.

Mileage: 111,000

On June 27, 2025, while driving, the vehicle displayed a "Propulsion Power Reduced" warning message and a Check Engine Light illuminated. I immediately experienced a loss of power. I brought the vehicle to an authorized Chevrolet dealer the same day. On July 1, 2025, the dealer diagnosed the failure as a faulty Battery Energy Control Module (BECM) and high-voltage system fault (Code P1E00), requiring a full replacement of the high-voltage battery pack (Part #24296900). The manufacturer (GM) was contacted, and the replacement battery was ordered on July 2, 2025. As of December 2025, the vehicle remains in dealer possession (over 5 months) with no repair completed. The manufacturer has stated the part is on indefinite backorder with no ETA. The failure of this component renders the vehicle inoperable and presents a safety risk due to sudden loss of propulsion power while in motion. The manufacturer has confirmed the failure but is unable to provide a remedy within a reasonable timeframe.

The contact owns a 2018 Chevrolet Volt. The contact stated that while attempting to start the vehicle, the engine failed to turn over as intended. Additionally, the vehicle would not charge when connected to a charger. The check engine warning light illuminated. The vehicle was taken to a local dealer, where the BECM was reset. The vehicle was repaired; however, the check engine warning light remained illuminated. In addition, the contact stated that the message "Reduced Power" was displayed on the instrument panel. The vehicle was taken back to the same local dealer where it was diagnosed, and determined that the BECM needed to be replaced. The vehicle was not repaired due to the cost. The contact related the failure to an unknown Chevrolet recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 129,000.

Mileage: 129,000

The contact owns a 2018 Chevrolet Volt. The contact stated that while attempting to start the vehicle, the engine failed to turn over as intended. Additionally, the vehicle would not charge when connected to a charger. The check engine warning light illuminated. The vehicle was taken to a local dealer, where the BECM was reset. The vehicle was repaired; however, the check engine warning light remained illuminated. In addition, the contact stated that the message "Reduced Power" was displayed on the instrument panel. The vehicle was taken back to the same local dealer where it was diagnosed, and determined that the BECM needed to be replaced. The vehicle was not repaired due to the cost. The contact related the failure to an unknown Chevrolet recall; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 129,000.

Mileage: 129,000

Why in operation the car goes into Shift to Park and Also getting a Propulsion Power Reduce

The car can't decide if it wants to use the battery or the engine. It shows zero charge even though it is full. It lurches at stop lights as it tries to decide whether to use battery or engine. It says "propulsion power reduced". "Not able to charge". "Shift to park". Check engine light is on.

Dashboard displays “Shift to Park” message even when the shifter is in the park position for the past month. I am unable to turn off the vehicle completely until I Shift to drive then back to park multiple times.

When shift lever is moved to Park, the car often does not recognize it is in Park and can't be shut down. It takes a lot of time of moving the selector in and out of Park to finally get the car to recognize it is in Park. During an occasion when the car would not go into Park, the car ran for hours while the driver was at work. This seems to be a known issue (micro switch) with this model. This is available for inspection upon request. Safety is at risk because this condition leads to not being able to shut the car down, which leads to the potential for a dead battery and getting stranded. While I have not yet had my car's problem reproduced or confirmed by a dealer or independent service center, there is a lot of evidence in online forums of the prevalence of this problem. The vehicle/component has not yet been inspected by the manufacturer, police, insurance representatives or others. There weren't any warning lamps, messages or other symptoms of the problem prior to the failure as long as we've owned the vehicle. We purchased this vehicle less than a week ago, on August 2, 2025. The issue presented itself once on our test drive and again intermittently in the six days we've owned the vehicle.

On [XXX], our 2018 Chevy Volt experienced a critical BECM (Battery Energy Control Module) failure while being driven by our [XXX] daughter. The failure caused the vehicle to enter limp mode, resulting in a severe loss of power and the inability to shift properly. Most alarmingly, the brakes failed to function correctly—despite being fully engaged, the car continued to move forward at a red light, placing our daughter in immediate danger. She was only able to safely stop the vehicle by maneuvering it off the road into a parking lot. This BECM defect is a well-documented issue for Chevy Volts from 2016 to 2018. However, Chevrolet has refused to cover our VIN under the existing special service bulletin, despite our vehicle using the same faulty part number as those included in the recall, and has provided no explanation for this exclusion. As a result, we are being forced to pay $2,100 out of pocket to replace a part that GM knows is defective. This is an unacceptable financial burden for a safety-critical issue. GM should immediately issue a recall for all vehicles equipped with this faulty part number to ensure the safety of all drivers and prevent further undue costs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

When the vehicle is running, and the gear is moved to park, and I attempt to turn off the car by pressing the ignition button, an error shows on the dash display and the message is "Shift to Park". Even though the car is in park, the vehicle doesn't know it. I then cannot turn off my car.

On May 26, the car was running in electric mode and switched to gas because the power batteries were depleted. Shortly after switching to gas mode, lights came on the dash board saying Engine Not Available Get Service Immediately. I was on a highway at the time and fortunately had just enough left to get off and the car would not move any further. Turning the car on and off did not resolve the problem. It had to be towed to a Chevy dealer. Even after an hour, the messages would come on when trying to start the car. The next day, the dealer called and said they could find no problems with the car and it works fine. This happened once before, but that time there was enough charge in the battery to get home and then later it would start without the message.

Issue Summary: The Chevy Volt has experienced recurring electrical problems, including the "Shift to Park" message, loss of power, and dead 12V battery. The vehicle had to be towed to the dealership three times due to these issues. One incident involved a power loss while driving at 65 mph, which caused a near-miss with a semi-truck, posing a significant safety risk. Warranty Status: The additional warranty was purchased, but only one of the three incidents occurred while the vehicle was under warranty. Safety Concerns: The repeated electrical failures, especially while driving at high speeds, raise serious safety concerns

Reduction of power , impossible to charge the kilometre says 21 kkm drops from 21 to 0 and the mountain settings dont run, I drive on maintenance , when charging at paying station does not charge,

EGR valve clogged and failed on a long trip, bricked the car and had to tow many miles back to home shop. now have been waiting 9 months and still no idea when the part will be available from Chevrolet. My shop and I have claims to Chevrolet for the part for service but still nothing and is getting so we are inconvenienced in travel.

The contact owns a 2018 Chevrolet Volt. The contact stated that while the vehicle was parked and shifted to park(P), the message "Shift to Park" was displayed on the instrument panel and the vehicle was inoperative. The contact stated that the vehicle was operative while in low power mode; however, the vehicle intermittently failed to charge in low power mode. No warning light was illuminated. However, the vehicle displayed the full battery icon on the display, but 1 EV Mile. The vehicle was taken to an independent mechanic where it was diagnosed that the battery energy control module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 11,000.

Mileage: 11,000

The BECM (Battery Electric Control Module) failed in November of 2023. Mountain Chevrolet has had my vehicle since then, claiming to be unable to find replacement battery module. The vehicle is available for inspection at Mountain Chevrolet (it has been left unlocked, unprotected, and exposed to the elements for almost 15 months now). When the BECM failed, the vehicle lost virtually all power and slowed dramatically from highway speeds to ~20 mph. There were no warnings prior to the failure.

When putting my car in park and shutting it off the dash board tells me to shift to park, and car does not fully shut off.

Driving on gas on the highway, the adaptive cruise control suddenly disabled with a "Reduced Propulsion" message on the dash and a check engine light. The car started struggling in its propulsion. We found an AutoZone and scanned the codes, and multiple were returned. A Google search pointed us to the "walk home" fuse, which indeed had been blown. Replacing that fuse and disconnecting/reconnecting the battery eliminated the errors. Less than a week later during highway driving (the next time the battery charge was used up and it switched to the ICE) I got another check engine light, but this time without the "reduced propulsion" message. Scanning at AutoZone again revealed a P0404 message referencing the EGR valve. Due to the limited availability of the part I have called into Covert Bastrop (Bastrop, TX) and am waiting to hear back on their ability to fix the car.

The issue started with a forward push while lowering my speed while coming to a stop. It then progressed to a trembling engine. Then it progressed to the car struggling to effectively switch from electric to gas and back. It then would only be usable on electric range and the engine would not start and would be greyed out. Now, it only works on engine mode, it uses fuel like a pick up truck, it loses power while driving due to trying to switch to electric mode and back, and it struggles to accelerate. It will do it while idle as well as while driving 45mph and up. It barely has any propulsion power and I have to turn my hazards on any time I am going to accelerate. If I brake hard the engine will shake violently and then shut off. I then have to switch gears from drive to park or neutral to park to drive to reengage the engine. Recently it has turned on all the accessories but the ev and the gas is greyed out and there is zero propulsion power. I replaced the 12v battery thinking it might have been dying and it still has the same issue. I read about the class action lawsuit for the BCEM and have made an appointment the dealership but when I told them what was wrong with it the said we need to wait for the diagnostics.

Took my 2018 chey volt to the dealer after trying to start the car and shifting into reverse a Action Required and shift to park massage appears. Towed the car to the Chevy dealership of on 11-19-2024 and on 12-17-2024 after the dealership has been talking with GM they tell me the car needs a new battery pack and there are none to be found. Car is still under GM warranty! Service adviser recommends calling GM to buy back or get a Lemon law Attorney

The contact owns a 2018 Chevrolet Bolt. The contact stated while driving at a moderate speed, the check engine warning light illuminated, and the “Propulsion Power” message was displayed. The contact pulled over and upon an attempting to restart the vehicle, the vehicle failed to restart. Due to the failure, the vehicle was towed to an independent mechanic where it was discovered that the BECM (Battery Engine Control Module) was defective. The mechanic discovered that the vehicle was under warranty and contacted that the local dealer for assistance. The mechanic drove the vehicle to the dealer who acknowledged the failure; however, the dealer stated that the failure was not covered under warranty. The manufacturer was also notified of the failure and the contact was provided a case number. The vehicle was not repaired and remained in the possession of the dealer. The failure mileage was approximately 100,000.

Mileage: 100,000

On [XXX], while driving on [XXX] in Virginia, the check engine light came on in my Chevy Volt. A message on dash said that there was reduced propulsion, and the gas engine quit running. The car switched to battery power, which would not have lasted long enough to get us home. At this point, we were stranded on a very busy highway which seemed quite dangerous. Using battery power, we were able to get off the highway. We then made arrangements to have the car towed, approximately 150 miles to a car dealer/repair business in Frederick MD. The vehicle was checked out by the car dealer who identified the EGR valve as the problem. However, they did not know when the part would be available , and still, 4 weeks later, do not have any date for availability of the broken part. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving our 2018 Chevy Volt, dashboard warning message “Propulsion Power Reduced” displayed. Vehicle performance was not otherwise affected. Subsequent diagnosis from our Chevy Dealer was, among other things, a faulty Exhaust Gas Recirculation (EGR) valve. We were informed that our vehicle was “no longer safe to drive in this condition” and the vehicle has been sitting on the Dealer’s lot awaiting a replacement part for 2 months and counting, with no expectation of near-term resolution of our problem. We are aware that this is a widespread problem on 2017-18 Volt models, with many dissatisfied owners.

Car has shift to park error where the shifter is in park but the car not does not recognize and refuses to shut off. Chevrolet has issued multiple service bulletins in regards to fix but dealership is not adhering to bulletin. Chevrolet then provides no support to the consumer in regards to correcting and places warranty information within service bulletin which is not standard procedure as told by multiple reps

Our Volt EGR valve has gone bad and car not drivable. They claim these have been on back order (very expensive) for a year! They also say it's NOT part of emissions! WTH? Car gas 36k HELP!!

On [XXX] while driving with my son in IN on [XXX] to my niece's wedding in PA, a reduced power warning sounded on the driver's console. Was able to stop and get gas at the eastbound travel plaza near mile marker [XXX]. Getting back on the road and accelerating toward 70 mph, suddenly lost all drive power. The fuel gauge side of the console was lit in yellow and said something like "No fuel detected." Pulled over to the shoulder and found the engine would start, run, and then die. An IN State Police Officer was kind enough to offer us an escort to the next exit near mile marker [XXX]. Noticed that the engine would remain running for longer periods and finally stayed on continuously. While being escorted, was able to run the speed up to 55 mph and made it safely to the interstate exit. During this time my son was checking online and found that the problem might be due a blown fuse. At the [XXX] exit we found a Pilot station that carried fuse sets. One of the sets had the fuse we needed. We bought two sets. We replaced the fuse--it had blown--and the car ran well again. This fuse is called "No walk home." We were able to continue on at 70 mph until stopping at a friends home in western PA for a few hours rest. While at our friend's home we partially charged the Volt's battery giving us about 20 miles of electric range. While in electric mode we stopped for gas. We drove through the mountains without incident then stopped for gas again in central PA at the Cumberland Valley Service Plaza. Filled the tank and while accelerating from the plaza again lost power and had to pull over. Replacing the fuse solved the problem once more. It appeared that turning off the engine while in gas mode and then turning the engine back on leads to the fuse blowing. That Sunday on the return trip to IL, I never turned the car off when refueling. This got me back home without incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2018 Chevrolet Volt. The contact stated that while driving at an undisclosed speed, the message "Engine Not Available" was displayed and the vehicle stalled. The vehicle was not able to be restarted and was towed to a local dealer where a reset of the engine code was performed. The contact stated that the failure reoccurred, and the vehicle hesitated while accelerating. The contact was able to pull the vehicle to the side of the road, and the vehicle was towed to the local dealer where it was advised that the battery of the engine control module needed to be replaced. The vehicle was not repaired. The contact related the failure with the Technical Service Bulletin: 18-NA-261 (Malfunction Indicator Lamp Illuminated and/or Intermittent No Start with Battery Circuit DTCs Set); however, the vehicle was not included. The manufacturer was made aware of the failure; however, no assistance was provided. The failure mileage was approximately 150,000.

Mileage: 150,000

Chevy Volts from 2016 - 2019 all have a manufacturing defect which can prevent the driver from powering - the error message is "Shift to Park". GM released a Volt Service Bulletin in May 2021 but offered no assistance to replace the defective part. On [XXX] I was driving home on [XXX] headed [XXX] from Santa Cruz in fair weather in the afternoon. This highway can be dangerous with limited shoulders and poor visibility, making it an unsafe place to pull over. While traveling at about 55 mph, the car made an alert sound and illuminated the check engine light and presented a message "Shift to Park". I was running out of room on the shoulder to pull off safely so I had to make the quick decision to pull off to the left-hand shoulder. I followed the instructions on the display which said to shift into park, followed by shifting back into drive. During this time I had my foot on the brake, but after removing my foot from the break, the vehicle began to roll towards traffic, so I put my foot back on the break. I tried powering the car off/on multiple times and tried to get the car to go back into drive but was unsuccessful. Eventually, I put the car back into park, called a tow truck driver, and waited for over an hour to have my car safely towed off [XXX]. Prior to this, I had not experienced any of these or similar symptoms. An OBD code scan was done (screenshot attached). Once at the Chevy dealership, they confirmed that the car could, at that time, shift into park and were not able to reproduce the "Shift into Park" issue. However, they reported that the car was revving high and the transmission would not shift into the proper gear ratio. The dealership was not able to fully diagnose the problem and instead suggested to replace the entire transmission as assembly and then continue investigating. We reached out to the manufacturer, Chevrolet/GM, about the issue(s) and were ed case # [XXX] while they work with the dealership to investigate further. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (F

Lost propulsion power went from doing 75mph to 35mph on the fast lane with no warning vehicles swerving to avoid hitting me..very scary and dangerous 3rd time this happens I now try to avoid fast traffic.. please look into this someone going to get hurt if no action taken..

My 2018 Chevy Volt has experienced the GM knows BECM issue. There are several Volt Owners that have experienced this issue. I would like to bring this to the attention for GM to post a recall/mandatory service repair as my car stopped working, would not start, was displaying false information on the electrical module, etc. Issue: 1. Car would not start 2. Battery stated fully charged with solid green light but display showed only 1 electric mile available 3. Tried to shift car to Reverse press gas nothing happened 4. Tried to shift car to Drive press gas nothing happened. 5. Car engine light is on 6. Utter confusion as stress as I’m stranded with no way to get my car working 7. Chevy dealership has had my car for one week now with the only update of ordered BECM module. No ETA on when this will be fixed 8. No indication of what caused the issue

After recent repair of hybrid transmission, experienced a loss of power, MIL, and several trouble codes related to the battery control module (BECM). This affects safety as the loss of propulsion unexpectedly causes deviations in speed from typical traffic flow. The problem was confirmed by OnStar and a manufacturer representative was advised with a dealer appointment scheduled when they next open. There were no lamps or other symptoms prior to this MIL and loss of power. Restarts after shut down have not been attempted until able to take the vehicle to the dealership.

My 2018 Chevy Volt was at a Chevrolet dealership in Burbank and they have been running tests on my car to re-create the problem which they have not been able to do. On [XXX] my car suddenly stopped and shakes violently after I turned it on after about driving 15 feet, and my screen was telling me “engine not available, service needed soon” so I got it towed to the dealership (no prior warning signs on dash or anything). On [XXX] they told me they were not able to find the fix or recreate it and also said “This is definitely very rare. Drive it around and bring it back in if it happens again” which felt like they really didn’t care for my safety at all. On [XXX], the same exact problem happened with my car, “engine not available, service needed soon” and shook violently (my girlfriend witnessed it) after 100 yards of driving it and then towed my car back to the dealership. On [XXX], 23 DAYS LATER, the Chevy dealership calls to tell me they still haven’t been able to recreate the problem or find a solution again. I haven’t been able to drive my car this whole time. I have had a case open with GM this whole time where they have been extremely spotty on communication and pretty much just ignoring me the alot of the time. They called me on Saturday, [XXX] (when they’re “closed”) to tell me their solution but I missed the call, I called Monday and Tuesday but can’t get in contact with my advisor until finally Wednesday, I call and they are able to connect me and they gave me a final solution on [XXX] of $1500 off a New GM brand car so they weren’t in any rush to contact me about the final solution. They should repurchase the car from me and pay for damages. Car feels extremely unsafe and there should at least be some type of diagnosis… CHEVROLET CANT FIX THEIR OWN CARS, UNREAL!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My BECM failed pulling in to my grandpas house. I was able to park the car, but unable to start it afterwords. Prior to failure, the engine would switch between electric, then back to gas, then back to electric This is a very common issue on these vehicles. I am fortunate this did not occur on the highway, as I had just exited I 94

"Propulsion power reduced" message along with check engine light, loss of propulsion power from battery, loss of ability to charge battery. OBD2 scanner reveals P1E00, and 12 U26xx fault codes relating to Battery Energy Control Module failure.

After getting some repeated "propulsion power is reduced" display warnings, my 2018 Chevrolet Volt literally died without warning while I was driving it on New Year's Eve and could not be restarted.

Chevy Volt lost power while driving on the highway. No warning. The car has been at the dealership for 3.5 months and they have yet to tell me what the issue is, I have asked every time. Seems as though they don't want me to know. HIghly likely it is is BECM issue. Also, I scheduled the car to be looked at via their app, the day I arrived for the appointment no technician was available, and said I needed to reschedule and bring it back in a week. I just left the car there because it was incredibly unsafe.

In June of 2023 the car experienced propulsion power reduction. The car was at the dealer awaiting repair for 3 weeks. On Dec. 14,2023 the same thing happened again. The car was also unable to accelerate once mobile. The car has about 90k miles on it.

Vehicle is 2018 Chevrolet volt with approx 91000 miles, purchased new in California with both PZEV and Voltec warranties in place. Vehicle produced MIL in December, in Colorado, with exterior temperatures ~30 degrees, after attempting to remote start. The resulting OnStar Codes P1AEE, P1AEF, and P0AC4 indicating "the electric propulsion system is not performing as expected. Please service immediately." Drove the vehicle to the nearest dealership assuming there could be an unexpected loss of power. Identified PIC6285B as trouble shooting aid for the dealership. The dealership stated they contacted their GM TAC representative and the service foreman and TAC agreed the vehicle needed a transmission flush. No indication that the work would be covered by the bulletin found. Customer contacted Chevrolet EV advisor and confirmed vehicle did not qualify for any warranty as the diagnostics indicated a category 4 issue associated with the bulletin but the repairs required were a transmission flush. This was contrary to the published bulletin, other customer reports, as well as the specific DTCs expected. Customer believes diagnostics would be covered by bulletin or warranty given a repair was identified based on the trouble codes that were pulled. Dealership and GM did not agree with customers belief. Customer forced to pay in order to recover vehicle after 1 week.

Car died while driving down road. Has engine codes to service high voltage system although It showed a full battery it only had 1 mile range and the gas motor wouldn't run.

The Battery Energy Control Module needs to be replaced (BECM). The car is available to be inspected at Key Chevrolet in South Burlington, VT. The car was parked when it failed. The car wouldn't start (lights on the dashboard came on) and it wouldn't turn off. I got a "shift to park" error message, regardless of which gear I was in. The car wouldn't go into Drive to go forward with either the drive battery or the gas generator. I had the car was towed to the dealership. It was inspected and diagnosed by them. When they did the diagnosis, they said the BECM had failed and there were cells in the drive battery that needed to be replaced. The BECM failure is a common problem with Chevrolet Volts and is covered by the Voltec warranty. There were no warning lights or other warnings (e.g., reduced propulsion) whatsoever. The car had shut off like normal but would not start or turn completely off. I was fortunate to have had the BECM fail while the car was parked. My understanding is that BECMs can fail while the car is moving and the power will stop and you won't have any control.

My 2018 Cheverolet Volt stopped charging via the PHEV port, the check engine light came on, and "Propulsion Power Is Reduced" read on the driver display. Car acceleration began to lag and I called the dealership service department immediately. I took it to the service dept and they said the repair is under warranty but the part is back-ordered with no ETA on when I will get my car back, but I should keep it there to prevent from getting stranded. They will provide no loaner car. It is currently at the dealership and I have no transportation. This appears to be a BECM issue.

The vehicle failed to restart after being parked in a garage all day while at work. On board diagnostics returned multiple codes concerning the EV battery and vehicle integrated control module. Specific descriptions include: The Lithium-Ion Battery is not performing as expected. An issue has been detected in the Onboard Charging System which manages your vehicles battery pack charge level; Vehicle network communication code. The network provides a communications link between systems inside the vehicle and when the network is disrupted a code can be set. If vehicle functionality is impacted please seek service soon. Dealership indicates the Battery Module needs replacing and part is back-ordered with unknown delivery time. There had been no warning or other diagnostic codes visible prior to the failure.

While Driving my 2018 Chevy Volt from Payson Utah to Provo Utah going north on the I-15 Freeway the car Lost Power and came to a stop. Luckily I was in the outside lane and was able to coast to a stop on the shoulder and wait for a tow truck to take the car to the nearest dealer in Spanish Fork Utah. My safety could have been seriously affected if I had remained stalled on the freeway. The car would no longer start or Turn off. The display only showed that the car should be shifted to park even though I had already completed that request. The car has been inspected by the Dealer for GM. No one else that I know of has inspected the car. No Previous warnings or messages appeared before the incident occured.. The Dealer is Telling me the car’s battery energy control module needs to be replaced and that it could take months to get a part. This is way to long for a car to wait to get repaired if the manufacturer claims to still be making the part.

2018 Volt will not shut off. Shift to Park displayed on console. Problem has been diagnosed at dealer. Problem is under Service Bulletin 19-NA-206, Voltec (Electric and Hybrid Vehicle) Warranty. Dealer and GM refuses to repair. Problem has been occuring for several weeks.

A Shift to Park message displayed while the vehicle is in park. The car will not turn off and continues to run. The issue is well documented through GM/Chevrolet, as they have a service bulletin (19-NA-206) for it. That document specifically states that the Voltec Warranty covers this issue, but Chevrolet is refusing to service my car based on its VIN number, despite identifying it as the same issue. And for the last question, no lights initially came on but then the check engine light came back on. When the car was finally turned off at the dealership, it turned back on with no issue lights or messages.

Car is stopped and shifted into park. When ignition switch is hit to turn vehicle off display reads "shift to park." Car does not register that car is already in park and cannot turn car off.

When the vehicle is placed in park and I attempt to turn it off, the dash will indicate the vehicle is not in park and subsequently, the vehicle cannot be turned off. Sometimes, if you wiggle the shifter or move it through all the settings (RNDL) and back to park, it will resolve the issue. Sometimes, it can take a few minutes to resolve the issue. It's getting worse. If you can't shut off car someone can steal it, you also can't lock doors.

The vehicle frequently has an 'Action Required - Shift to Park' display on the dashboard even though the shift lever is in park. This means that the car cannot be powered off and you cannot leave the vehicle. It is a problem that GMC is aware of, but refuses to fix under warranty unless the vehicle actively shows the problem while at a GMC dealership.

To begin, I will set the scene of my experience. I was traveling east bound on 84 in northeast PA on my way to Long Island for work meetings that day. I was about one hour and a half away from my home at roughly 6am. I was traveling at apx. 70 mph when my car suddenly says "engine unavailable, reduced propulsion." and the fueld tank turned yellow in color on my dashboard. Then a sign said "service soon." My car then COMPLETELY STOPPED WORKING. My speed fell from 75 mph or so to 0 in a matter of a minute, I had no idea what was happening because there were no appropriate warnings such as, "Pull over immediately" or "SAFETY CONCERN PLEASE GET OFF THE HIGHWAY" -I would have taken anything to know that this was an actual emergency and I needed to at least get to a shoulder. I luckily was able to come to a stop mostly off the highway in a shoulder. I was located around a bend, in the pitch black, unable to stay in my car out of fear I would be smashed by a tractor trailer or car that did not see my car suddenly stopped. The car would not go in neutral or anything other than park and I left the hazards on (they eventually failed). I called my husband who drove to me while I stood on the side of the highway for an hour and a half in 30 degree weather. I called the police who were eventually able to put up flares and mark me as a hazard on the road. If there was a car traveling behind me, I would have been killed or seriously injured because I slowed so suddenly and had no way of knowing that this was an absolute emergency. The worst part is that this is the second BECM failure in my volt and I have driven less than 1000miles since it was repaired the first time (which took >5 months). The first time this happened my car was on a quiet town road and my brother who was driving just parked and had it towed. He hadn't thought there were any warnings but he wasn't sure. This time, I could have been smashed on the hwy with little to no warning. I can't believe Im alive.

When placing in park it doesn't trigger the switch and car will not shut down.

The gear shifter for the Chevy Volt has an issue where it does not register in Park. I need to contantlty move through the gears to have it be in park.

BECM failed upon startup. Pressed start and vehicle appeared to turn on. Shifted into reverse but there was no motor power and I began to roll backwards down the driveway. Started the vehicle again and then the engine came on and a reduced propulsion message appeared.

Going 80 mph on the freeway with adaptive crusie control on, the car begins to jerk, and the rpm's shoot up and down. The adaptive cruise control disengages, the stabiltrack, abs, and engine light turned on and the car goes into limp mode. As I slow down, the speedometer keeps increasing up to 90. After, I inspected the driver wheel speed sensor and discovered that the sensor tip in the hub had been damaged. The anti-click washer had broken and began cutting the sensor until it failed.

After turning off the car, I get a "shift to park" error. I am not able to lock the car and it does not power down.

Vehicle displays "shift to park" when it is already in park, and will not shut off. I had to leave it on, and despite nothing apparently on (electric vehicle, no motor running), it drained the12 volt battery and would not start up the next day.

When car is stopped and shifted to park a message comes onto the dashboard telling me to Shift To Park. The car does not completely shut off nor do the lights, and you can not lock the car.

When shifting to Park, and switching the car off, the vehicle will not register as being IN “Park”… and Displays “Shift To Park” and accompanying warning chime. Further, the car will not turn off.

When attempting to turn the vehicle off after parking, the driver's console displayed the message "Action required: Shift to Parlk". The shifter was already firmly in the "Park" position. Moving the shifter back to "D" and then back to "P" did not resolve the issue. Pressing the power button twice more resolved the issue this time without further moving the shifter. This is a well-known and well-documented issue with "Gen 2" Chevy Volts.

When shifting car into park, car sometimes does not detect car is already shifted into park. The car will then not shut off until I have to turn the car completely on and shift into drive and then park a few times so the car can detect that it is in park. Give message on car's to shift the car into park.

When I stop and shift vehicle into park and try to turn off vehicle. The vehicle does not recognize the vehicle is in park and will stay running. This had happened numerous times and is ongoing. Have read there is even a class action suit because of this problem with numerous different gm vehicles. Why has a recall not been issued?

Shift to park defect. When I try to turn my car off it won’t completely shut off, a notification on my dash says “Shift to park” but my gear shift is in park already. It takes 5-10 times of me cutting car off and on for it to finally completely shut off.

When turning vehicle off, it will display a message "SHIFT TO PARK" even though shifter is in the park position, the vehicle will also remain on. Sometimes have to jiggle the gear shift or shift back into park a few times before the message goes away and am able to turn vehicle off. This is very dangerous as if it's left unnoticed in a garage the car can be left running potentially filling the house with fumes. Can also run out the battery and gas and leave you stranded if away from your home.

Shift to park issue, not allowing car to shut off.

After I put the car in park, the car dashboard doesnt reflect this change, essentially assumes the car is not in park and I am unable to lock the car and the lights will stay on for a while. After jiggling the shift handle just the right way I could get it to recognize the car was indeed in park.

When trying to turn car off, "shift to park" error message appears on console, but car is in park as observed by gear shift and console display. Order of events: car stopped in parking spot or garage; shifted to park; parking brake set; hit power button to shut down; "shift to park" error message appears; car will not shutdown. Need to hit power button again in order to shift out of park to any other position (N, R, D, etc.), then shift back to Park and hit power button again. Sometimes 1 try works, but often the error message will appear again and multiple power button - shift to gear - shift back to park and power button again - sequences must be tried in order to turn the car off. Please issue recall.

I put the car in park and try to shut it off but it says I need to put the vehicle in park. It is in park but will not shut off.

PARK TO SHIFT ISSUE. WHEN CAR IS PLACED IN PARK IT IS NOT RECOGNIZED AND SAYS THAT ACTION IS REQUIRED. GIGGLING THE SHIFTER OR PRESSING THE BUTTON ON THE SHIFTER USUALLY TAKES CARE OF THE PROBLEM. THE CAR WILL NOT TURN OFF UNLESS IT RECOGNIZES IT IS IN PARK.

Mileage: 35,000

WHEN FULLY STOPPED AND IN PARK, TURNING CAR OFF, MESSAGE APPEARS 'SHIFT TO PARK' CAR IS ALREADY IN PARK. UPON PUSHING START TO TURN CAR OFF, MOST LIGHTS ETC. TURN OFF EXCEPT THE SPEEDO DISPLAY. NO WAY TO TURN IT OFF. CAR HORN HONKS UPON EXITING CAR WITH KEYS. SPEEDO LIGHTS STAY ON, DRAINING BATTERY BATTERY AND POSSIBLY TEMPTING A CAR THIEF.

Mileage: 10,770

NTSB SHOULD REQUIRE A RECALL OF CERTAIN CHEVROLET VOLTS. AS AN OWNER I RECEIVED A LETTER FROM CHEVROLET STATING THAT MY VOLT 'MAY HAVE A CONDITION WHERE IT COULD GRADUALLY LOSE THE ABILITY TO MAINTAIN VOLTAGE. IF BATTERY CONCERNS ARE NOT ADDRESSED, OVER TIME THE VEHICLE COULD ENTER A REDUCED PROPULSION MODE WHILE DRIVING, OR LOSE PROPULSION, OR IT MAY NOT START.' LOSING PROPULSION WHILE DRIVING IS A SERIOUS SAFETY ISSUE, AND WARRANTS A RECALL. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Mileage: 30,432

WILL NOT SHUT OFF WHEN TRANSMISSION SHIFTED TO PARK.

VEHICLE WILL NOT TURN OFF ON A REGULAR BASIS.. RECEIVE A MESSAGE THAT READS: 'ACTION REQUIRED. SHIFT TO PARK.' WHEN THIS OCCURS, THE VEHICLE CAN NOT BE TURNED OFF OR LOCKED. RESEARCHED THIS PROBLEM ON THE INTERNET AND DISCOVERED THAT IT IS A VERY COMMON PROBLEM THAT AFFECTS NEARLY ALL 2016, 2017 AND 2018 CHEVROLET VOLTS. A RECALL SHOULD BE IMPLEMENTED!

Mileage: 76,493

VEHICLE WILL NOT SHUT DOWN PROPERLY. WHEN TRYING TO TURN OFF PUSH BUTTON IGNITION THE VEHICLE SAYS " ACTION REQUIRED: SHIFT TO PARK". THE VEHICLE IS ALREADY STOPPED AND IN PARK HOWEVER IT IS NOT REGISTERING SOMEHOW.

Mileage: 25,000

'SHIFT TO PARK' PROBLEM THE CAR WON'T SHUTDOWN

Mileage: 15,000

THE VEHICLE HAS MORE CONSISTENTLY FAILED TO TURN OFF THE DISPLAY KEEP SEEING SHIFT TO PARK AND IT'S HAPPENING WITH MORE FREQUENCY.

I LEASED A CHEVY VOLT 2018, ABOUT 3 MONTHS AFTER THE FIRST FEW CHARGE, USING THE CABLE THAT CAME WITH THE VEHICLE THE CAR DO NOT CHARGE ANYMORE, AIR CONDITIONING NOT WAS WORKING, I REPOSTED THE ISSUES TO THE SALES AGENT. HE RESPONDED THAT THERE WAS NOTHING WRONG WITH THE VEHICLE, THAT I NEED TO LEARN HOW TO USE IT. A COUPLE OF MONTHS LATER WHEN I WAS DRIVING THE THE VEHICLE STARTED TO SAKE AND THE CONTROL PANNEL WENT CRAZY, I CALL AGAIN TO THE DEALER. THEY TELL ME THIS TIME TO BRING THE CAR INN. AFTER THE KEEP IT FOR A DAY, THEY CALL ME TO SAID THAT THEY HAVE TO KEEP THE CAR BECAUSE THE CAR HAVE A DIFECTEC BATTERY CELL, THEY TELL ME THAT THEY NEED TO ORDER THIS CELD AND INSTALL IT. THEY KEEP THE CAR FOR A WEEK. AFTER THE CAR WORK OK FOR A COUPLE OF MONTHS AND AFTER THE AIR CONDITIONING NO NOT WORK, I CALL AGEING TO REPORT THE PROBLEM, BUT THEY GIVE ME THE SAME ANSWER. AFTER I RECEIVED A NOTICE OF A RECALL FOR THE AIR CONDITIONING, I TOOK THE CAR FOR SERVICE AND I NOTICED THAT THEY NEVER ROTATED THE TIRES AS THEY CLAIMED. THE PROBLEM WITH THE AIR CONTINUE, SO I TOOK THE CAR TO A DEALER CLOSER TO MY HOME, THEY TELL ME THAT THE CAR HAVE A PROBLEM AND THEY NEED TO KEED THE VEHICLE. AFTER THEY TELL ME THAT I HAVE TO PAID BECAUSE FOR THE REPAIRS ABOUT 1600.00 BECAUSE OF THIS PROBLEM I DON'T HAVE A CAR AND I'M ABOUT TO LOSS MY JOB. THIS CAR HAS BEEN A NIGHTMARE. I ASK THE DEALER TO PLEASE TO TAKE BACK THE CAR. I ALSO ASK CHEVROLET CORPORATION BUT NOT ANSWER HAS BEEN TAKEN, THIS CAUSE ME TO LOSS MY JOD SND CREATED MANY PROBLEM TO ME AND MY FAMILY. THE VEHICLE STILL ON THE SHOP FOR THE LAST TWO WEEKS AND THEY TRLL MR THAT MAYBE TAKE LONGER. CAUSE THEY DON'T HAVE THE PART AND THAT IS ON BACK ORDER.

WHILE ATTEMPTING TO TURN THE CAR OFF- A MESSAGE APPEARS SAYING "ACTION REQUIRED- SHIFT INTO PARK". THE CAR IS IN PARK AND THE DASH REGISTERS THAT IT IS IN PARK, THE GEAR SHIFT IS LOCKED IN PARK BUT THE SYSTEM DOESN'T SENSE THAT IT IS IN PARK AND WON'T LET THE CAR SHUT OFF. HAS PROGRESSIVELY GOTTEN WORSE AND MORE FREQUENT.

Mileage: 40,000

VEHICLE GIVES A "SHIFT TO PARK" MESSAGE WHEN IT IS ALREADY IN PARK AND I AM ATTEMPTING TO TURN IT OFF. I HAVE TO SHIFT THE CAR BACK INTO DRIVE OR REVERSE AND THEN SHIFT IT BACK TO PARK MANY TIMES BEFORE IT ALLOWS ME TO TURN OFF THE VEHICLE. I TOOK IT TO BE REPAIRED TO MY LOCAL DEALERSHIP AND THEY REPLACED THE "SHIFTER IN-LINE WIRE HARNESS JUMPER", AS INDICATED ON MY INVOICE. TWO DAYS LATER, I AM HAVING THE SAME PROBLEMS AGAIN.

Mileage: 33,300

WHEN THE CAR IS SHIFTED TO PARK AND TURNED OFF, A "SHIFT TO PARK" MESSAGE APPEARS. THE CARE HAS TO BE RESTARTED, SHIFTED OUT OF PARK, AND BACK TO PARK AGAIN IN ORDER TO TURN THE CAR OFF. THE PROBLEM IS CURRENTLY SPORADIC.ABOUT 8 OCCURRENCES SINCE EARLY JUNE, 2020.

Mileage: 54,000

AFTER SHIFTING TO PARK AND PUSHING THE POWER BUTTON TO TURN THE CAR OFF, I GET THE MESSAGE "SHIFT TO PARK.", AND THE CAR WILL NOT TURN OFF. IT DOES NOT RECOGNIZE THAT THE CAR IS IN PARK. THE CAR WAS STATIONARY. THE CHEVY DEALER FIXED THE PROBLEM IN OCTOBER OF 2019 AND IT WORKED UNTIL RECENTLY. *TR

Mileage: 24,158

"SHIFT TO PARK" WARNING ALERT ISSUED WHEN SHIFTER IS ALREADY IN PARK. THIS ISSUE OCCURS INTERMITTENTLY AT LEAST 3X A DAY. WIGGLING AND/OR RESHIFTING TO PARK SOMETIMES RESOLVES THE ISSUE. MORE EFFORT AND TIME TO "PLAY" WITH THE SHIFTER IS REQUIRED IN THE LAST MONTH TO MAKE THE WARNING GO AWAY. ONLINE RESEARCH RESULTED IN MULTIPLE REPORTS INCLUDING VIDEOS ON THE ISSUE WITH THE SHIFTER ASSY. THIS ISSUE STARTED OCCURRING WHEN THE CAR WAS 1.5YEARS OLD. THIS ISSUE SEEMS TO BE SYSTEMIC WITH OTHER SIMILAR GM MODELS. PLEASE CONSIDER ISSUING RECALL TO FIX THIS ISSUE. THANK YOU. *TR

Mileage: 30,000

WHEN ATTEMPTING TO POWER OFF VEHICLE AFTER SHIFTING TO PARK, AN ERROR MESSAGE IS DISPLAYED ON CONSOLE, "SHIFT TO PARK", AND THE VEHICLE WILL NOT POWER OFF. VEHICLE IS IN PARK WHEN THE ISSUE OCCURS, BUT REQUIRES SHIFTING OUT OF PARK, POSSIBLY MULTIPLE TIMES, TO ALLOW VEHICLE TO POWER OFF. ISSUE OCCURS DURING EACH USE OF VEHICLE.

Mileage: 15,300