Electrical System Problems of Chevrolet Volt - part 2

While driving the vehicle, the car shut down. Thankfully I was coming to a yield at a round about after exiting the interstate. I was finally able to get it to restart and proceeded on my way. If this had happened on the interstate myself, and other drivers would be at risk due to unassisted steering and braking. I also have experienced intermittent periods of "reduction of power" while on the interstate and other 55mph plus highways. This presents a hazard to myself and other drivers as well. These issues are covered for similar vehicles under special warranty coverage n232432680 as required by NHTSA on March 6, 2024. My vehicle also exhibits all of the primary symptoms described in that coverage, but gm claims that my vehicle is not covered. Cel is on. Can't charge condition reduced power no start condition.

See all problems of the 2017 Chevrolet Volt 🔎.

More than two weeks ago, my 2017 Chevrolet Volt lt showed becm codes. The local dealership service center said they would order the parts for a complete replacement. The work and parts are covered under warranty as this has been a common issue. The becm and coolant arrived within a few days, but the remaining parts are back ordered! after two weeks of waiting gm has failed to send the parts and I and my family are in need of our vehicle for both work and safety reasons. The part number for the parts that still need to be sent 11517042. The warranty coverage number from Chevrolet's bulletin in regards to this failure n232432680.

While driving the car displayed “reduced propulsion power” on the dash and then I lost all drive power and could not switch the plug in hybrid from electric to gas engine mode. The vehicle had to be towed to the dealer who stated that the battery electronics control module and perhaps the battery needed to be replaced. The check engine light came on slightly before the incident.

See all problems of the 2016 Chevrolet Volt 🔎.

There was a recall for the hpcm2 where the propulsion power reduced warning would come on whenever the car's cell battery was depleted. This happened with my car and there were several times it slowed on the freeway and on exit ramps as I tried to safely get my car off the road. It first happened on 4/13/25. I took my car to a regular mechanic who charged me 3k of repairs on basic maintenance, new tires, etc but were unable to fix this issue. They advised it was a manufacturer issue and to go to a hybrid specialist or a dealership. I called a hybrid specialist who found the faulty code and advised the same. I took my car to felix Chevrolet (3330 s. Figueroa st. La, CA 90007) and they offered to do many maintenance service items that I had done earlier this week in an attempt to fix the hpcm2 software bug. After I told them that the maintenance items were complete, they called me back an hour later to tell me I needed other maintenance repairs that are less common. When I gave them the description of the recall and re-explained this is identical to my car's symptoms and that this manufacturing issue may have affected other vehicles like mine that were outside of the recall batch, they told me it was impossible to apply this diagnosis as long as my VIN number was outside of the recall batch. Can you please add my VIN to this recall or have my car reviewed by someone who can debug the software?.

The contact owns a 2019 Chevrolet Volt. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the battery high Voltage disconnect relay. The vehicle was not repaired due to lack of part availability. The manufacturer was notified of the failure, a case was opened, and the manufacturer confirmed that the part was on backorder. The failure mileage was 80,000.

See all problems of the 2019 Chevrolet Volt 🔎.

I am submitting this complaint regarding a recurring and potentially hazardous issue in my Chevrolet Volt 2017. The vehicle frequently displays a “shift to park” warning message even when the gear shifter is correctly in the park position. This malfunction prevents the car from shutting off properly, posing both safety and operational concerns. This issue is widely reported among Chevrolet Volt owners, and general motors has acknowledged it in technical service bulletin (TSB 19-na-206). Despite this, no formal recall has been issued to ensure a permanent solution for affected drivers. My Volt currently has 138000miles, and although it is outside of the Voltec warranty period, this is clearly a manufacturer defect—not a result of normal wear and tear. The problem affects the safe operation of the vehicle and may lead to battery drain, inability to power down the car, and driver confusion. I strongly urge the national highway traffic safety administration (NHTSA) to investigate this issue and consider initiating a recall to protect drivers and ensure accountability. Thank you for your time and attention to this matter.

My chevy Volt went into reduced propulsion system power mode, the engine light came on and the vehicle stalled while sitting at a traffic light on [xxx] at [xxx] in tyler texas. Checking the computer and the complaints online I found that my 15 amp #03 fuse (no walk home) had blown. I replaced the fuse and the next day on [xxx] the same thing happened again after driving 30 miles. The vehicle stalled at an intersection outside of tyler texas. The egr valve is known to cause the fuse to blow, so I had no choice but to unplug the egr valve and replaced the fuse and has not blown the fuse since. This is both a safety issue and an emissions issue, but the replacement part cannot be found anywhere to purchase anymore so I am having to drive this vehicle with this ongoing safety issue. Due to the nature of the egr valve blowing the fuse all the time and that it affects the safety of the vehicle a nationwide recall needs to be done on these vehicles to force gm to start making the part again. This is a dangerous flaw that will cause the vehicle to stall and create a safety hazard. This has been ongoing for quite some time with these Volts, and something needs to be done about it ASAP. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I was slowly maneuvering my car into my garage when the vehicle suddenly and unexpectedly surged forward, despite only lightly tapping the brake and not touching the accelerator. The car had been displaying the warning, “propulsion power is reduced” and was not holding an electric charge in the days before the incident. No malfunction indicator lamp ever turned on. Per the owner’s manual, the vehicle did not need to be serviced because the malfunction indicator light never came on at the same time as the propulsion power reduced message. This led me to believe the vehicle was safe to drive. The unexpected surge caused the car to strike and cause considerable damage to the garage wall. Fortunately there was no one in the garage at the time and I, myself, was not injured. My car was deemed a total loss by the insurance company.

See all problems of the 2014 Chevrolet Volt 🔎.

When moving the shifter to the "p" position after parking, the car will refuse to turn off with the message on the dash: "action needed: shift to park". Shifter is in park position but car will not recognize this and does not turn off. The issue can sometimes be resolved by pressing the shifter knob button repeatedly, or by pulling the shifter all the way back to drive and forth to park multiple times until the message is cleared. This happens about 4/10 times that I drive, there is currently a bulletin posted by chevy for a fix. However, the fix is only covered under a "warranty" and the chevy repair center at the dealership quoted $400 to complete the repair out of warranty.

The contact owns a 2017 Chevrolet Volt. The contact stated while the vehicle was parked, the vehicle stalled; the contact stated that the vehicle was jumpstarted and the vehicle to returned to normal operation; however, the failure reoccurred on several occasions. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the battery energy control module (becm) needed to be replaced. The vehicle was not repaired. The vehicle was towed to a dealer where it was diagnosed that the 12-volt battery needed to be replaced. The vehicle was repaired; however, the check engine warning light illuminated again. The manufacturer was not notified of the failure. The failure mileage was approximately 107,000.

Becm failure leaving car stranded in traffic with no ability to move under its own power.

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.

See all problems of the 2018 Chevrolet Volt 🔎.

Vehicle had the battery energy control module fail at about 87,000 miles. Vehicle will not start and will leave you stranded when this happens. This is a known defect and gm issued a special coverage to extend the warranty for this specific component, but for some reason only applies to a handful of vins. Mine was not one of them, so I got stuck with a $2500 repair bill. I love the car and am not mad that they are breaking, engineering is hard. I am mad that even after a requirement from the NHTSA, chevy is refusing to repair a known defect with their vehicles that can leave the owner stranded and is making the owners foot the several thousand-dollar repair bill. This was my first chevy, and due to the poor way this has been handled, probably my last.

On [xxx] the check engine light turned on in my 2016 chevy Volt (VIN: [xxx] miles 145,xxx). I was 2 hours from home in the freezing cold snow but thankfully the vehicle allowed me to drive home without any issues (no reduced propulsion power). When I returned to the vehicle to have a diagnostic check the error light disappeared and I was unable to check for error codes. Still no issues driving under ev/gasoline. Later that day, the car stopped going completely, no shifting out of park either. Ev range was reporting 0 miles despite having full charge. I plugged in the charger but it would not work (first time this happened), " not able to charge" message displayed. After cycling power the ev range was full range and I was able to shift into drive again. These issues were intermittent over 3 weeks, frequently standing me temporarily. After cycling power, opening and closing the door, cycling power again, the car would function normally and I could drive under battery or gasoline power. I managed to capture these error codes while the mil light was u2603, u2604, u2605, u2606, u2617, u2618, u2619, u2620, u2621, u2622, u2623, u2624 [xxx] my vehicle no longer drives or shifts out of park, "not able to charge" message displayed, cel light on. A class action lawsuit revealed a technical service bulletin 18-na-261 released in 2018 (see attached) accusing gm of continuing support of the known faulty module. The result of the case was special coverage bulletin n232432680 which acknowledges and addresses the above mentioned issues by replacing a faulty becm common to all chevy Volt models years 2016-2018. My VIN is excluded from coverage due to being a carb compliant vehicle despite exhibiting the same behaviors, error codes, and sharing the same faulty becm. Of the 60,000 Volts sold in 2016-2018, only 19,000 (~33%) qualify under the special coverage terms. 100% of the vehicles that qualify for coverage are non-carb compliant. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552.

The contact owns a 2016 Chevrolet Volt. The contact stated that while the vehicle was parked, the check engine warning light illuminated. The contact used a scanner and retrieved dtc: u2603-u2606 and u2607-u2622. The dealer was made aware of the failure. The vehicle was scheduled for an upcoming diagnostic test. The vehicle was not yet diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 95,000.

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.

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.

Vehicle slows at times and provides message "propulsion power reduced. " at times vehicle will not start and cannot move transmission shifter out of park.

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.

Car lost power in 02/2024, was taken to dealer. Issue was not addressed properly. 12/2024 the car would not move, towed to dealer, estimate $2000 to replace becm, know issue for these vehicles.

My car stopped all of a sudden and lost power while my wife was driving. She could've been in a major accident since the car lost power. This has happened a few times in the past. Luckily she wasn't on the freeway or she could've been rear ended at highway speeds. There were warning lamps that said check engine and "lost propulsion". This should be looked at closely as my safety as well as the safety of others was at risk. Very dangerous situation! I had my car towed to the nearest auto repair shop where it is being looked at.

Loss of propulsion. Vehicle will not start/move. If vehicle does turn on , it will not turn off. Vehicle has been having reduced propulsion issues for multiple years (taken to dealer many times) that dealership has refused to do a hv battery capacity test while under warranty, even after leaving with them for multiple months they claimed they could not replicate error. On day of pickup error presented itself and I showed service advisor and left vehicle for additional testing. Dealer provided explanation of reduced propulsion when in mountain mode as cause even though vehicle was not in mountain mode when error occurred. Dealer performed customer satisfaction gm program # n172130462 update 11/2021 on hv system that stopped propulsion issues (mainly battery capacity concerns) until vehicle was out of warranty. Now vehicle will not turn on/move even though hv battery completely charged. Vehicle is essentially bricked at this point. Will be taking back to dealer 12/30/2024.

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.

I was driving at about 50mph all of a sudden I got a propulsion error and my car stopped working it had no power! people had to swerve around me and I was almost hit. My car would not drive I shut it off and back on multiple times. Finally it started but would not go above 25 it was so scary. I went to the dealership they said it’s known issue since 2016 and that my miles were too high so it would not be covered to fix the total amount it almost 3,000 this seems unfair that chevy would continue to sell a vehicle knowing it had issues with a energy control module and not fix it for free. Especially when you could be killed while driving it!!.

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.

Becm failure car suddenly stopped driving and or starting had to have it towed home.

Dear NHTSA officer, I am writing to report a serious safety incident involving my 2017 Chevrolet Volt. On November 9, 2024, while driving with my family, our vehicle unexpectedly lost power without any warning. The details of the incident are as follows: incident: the car powered off suddenly. Passengers: myself, my wife, and our two children were in the vehicle. Aftermath: we were unable to restart the car despite multiple attempts. Resolution: it took two hours and assistance from neighbors to push the car back to our driveway. Upon researching this issue, I discovered that other 2017 Chevrolet Volt owners have reported similar symptoms, which appear to be related to battery energy control module (becm) failures. Furthermore, I found that gm issued technical service bulletin (TSB) 18-na-261 addressing "an internal issue within the battery energy control module" for Volt models. This incident has raised serious concerns about the safety and reliability of our vehicle. I am requesting immediate attention to this matter, including: a thorough inspection and repair of our vehicle information on any recalls or extended warranties related to this issue assurance of the vehicle's safety for future use given the potential danger posed by sudden power loss while driving, I believe this issue warrants urgent attention and possibly a wider recall. Thank you for your prompt attention to this critical safety matter. I look forward to your timely response and resolution. Sincerely,.

While operating my chevy Volt on a los angeles freeway, warning lights came on informing me to park immediately, and that the power propulsion was reduced. The check engine light also came on. At that point the “shift to park” message came on. My car is experiencing the “shift to park” issue. I already had this happen previously in 2023. The repair cost $1,200. There are many, many references to this issue on the internet. The “shift to park” defect is well known in the chevy Volt community. When this happened the second time, ([xxx]), I was stranded on the side of an la freeway. The car will not start. It will cycle through the “shift to park” message on the dashboard and it will not go anywhere. The car initializes, so there is power in the vehicle, but no propulsion. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Shift to park message & audible alarm. Display while in motion pulling into home driveway. Vehicle stalled midway while in motion. Halfway in the street & half driveway. Displaying propulsion power reduced & engine not available service soon. After 30 minutes of starting & restarting was able to move out of the street. However vehicle will not move. Transmission will shift, however will not move. Shift to park keeps popping up.

The contact owns a 2017 Chevrolet Volt. The contact stated that while driving at 60 mph she lost forward momentum. The contact depressed the accelerator pedal but the vehicle would not drive above 30 mph. The contact stated that the "propulsion power is reduced," warning message had appeared on the instrument cluster. The contact had taken the vehicle to the dealer and it was diagnosed and determined that the 12v battery needed to be replaced. The vehicle was repaired, however the failure reoccurred. Additionally, the contact stated that the vehicle hybrid battery was no longer charging and would not turn on. The contact had the vehicle towed to the same dealer and the vehicle was not repaired. The manufacturer was notified of the failure. The vehicle had yet to be diagnosed or repaired. The failure mileage was approximately 60,000.

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).

My 2016 Chevrolet Volt loses power while driving and the "propulsion power reduced" warning message appears. This has happened multiple times in the past few weeks and it is very dangerous losing power while traveling. After taking it to a chevy dealer for service, they advised that it was an internal failure of the becm (battery energy control module) and that it would need replaced. After searching online it appears that this is a common issue with the chevy Volt models from 2016 - 2019. So much so that gm extended a special warranty to cover this failure up to 15yrs and 150,000 miles. Unfortunately for reasons I still don't understand, I was informed that my vehicle is not covered under this special warranty despite it specifically being the year and model that is affected. My vehicle currently has 93k miles and was purchased in 2016. So I am just outside the original 8 year 100k mile warranty but thought I was covered under this new special coverage given that this is an issue that gm is clearly aware of. I was also shocked to find out that there apparently was never a recall for this issue. My wife and child normally take this vehicle across town at highway speeds and I'm lucky the issue only happened to me. I fear for those who brought their vehicles and are not aware of the issue and will be told that theirs isn't covered as well.

Automation-on 10. 1. 24 my car stopped working. It would turn on, but would not shift. It was also showing my ev was fully charged but the ev miles read 0. My husband came and plugged my car in and saw that when I turned the car on it read "shift to park" also the codes from my onstar app read "lithium ion battery"- issue found in high Voltage battery. "12 Volt battery needs attention" 10. 2. 24 we called gm to report issues and referenced n232432680 (bcem). We were informed that even though we can read diagnostic reports on onstar it needed to be confirmed from a certified gm dealership that they could not confirm this is the warranty issue if they did not 1st had the certified dealership share their diagnostic report. Bergstrom shared it sounded like becm that is under warranty. They continued to share it didnt look good and the VIN was not in the system to be covered. Shared the minimum amount we would pay was $440 for the 2 issues for labor/diagnostics. 10. 4. 24 we called gm to file a report we were given a case manager to work our case. 10. 8. 24 received call from case manager shared no warranties seen on file. I asked for this to be documented and emailed to me, I was told she could not share this information other than this phone call. Bergstrom called saying the car was ready to pick up, cleared codes/no issues, drove 26 miles with no codes. Shared gm never seen/heard anything like this and had no advise/help to offer. Shared only charged for 1 hour of labor. Asked for trade in for car. Was given price $1,200 under trade in value. Cause due to car not safe, potential issues. No documentation shared, nothing to show issues, car is clean/cleared to drive they had no answer than my car was fine but was not able to give lowest amount for trade in due to issues.

Driving to work one morning, I noticed an engine light with a "propulsion power reduced" on my 2016 chevy Volt. Upon closer arrival to work, the car was behaving quite erratically with constant "propulsion power reduced" errors on the dash. The a/c stopped blowing cold and immediately fogged up the front window, making me unable to see the road. After arriving at work, I could smell what could be described as a burning electrical smell coming from the vehicle, although no fires were seen. Upon checking diagnostic codes, the car had a list of codes pointing to the failure of the battery energy control module (becm. ) I researched the issue and discovered "n232432680 - special coverage battery energy control module malfunction" listed by gm and the NHTSA. My chevy Volt is within the model years (2016-18) and mileage (<150,000) for the special coverage warranty from March 2024. Upon checking with the local gm dealer, they said that my VIN is not included in the special coverage and I must pay out of pocket, even though I have the exact problem described in the warranty and my Volt satisfies other conditions (model year and mileage). I am scheduling a service appointment this week with the local dealer to formally diagnose and repair the issue.

I am lodging a complaint about general motors in dealing with a warranty repair to my 2017 Chevrolet Volt. On 9/11/2024 had low propulsion warning and took the vehicle to a local dealer. I though it may have been the power module, but the dealer stated: “the module would not be replaced because it is not failing. Your high Voltage battery is made up of multiple sections that control the power of the vehicle, one of those sections of your battery has a failure so rather than replacing the whole high Voltage battery, gm will usually authorize replacement of the failed section. ” on 9/13 gm authorized replacement. Weeks passed and I was told the battery section would come q4 (2024]. The dealer has been very responsive about keeping me with loaner vehicles. I have issues only with gm. I asked gm to buy back the vehicle in January 2025. The request was verbally denied since for some undisclosed reason it does not fall within the California lemon law parameters. Later I was told by gm the part is expected “q2”. Gm has a representative call em every week or so just to check in. This was a safety issue as the car went to low power and might have caused significant problems in traffic. All the while I have been unable to drive the car, sell the car, or otherwise enjoy freedom of ownership. Now we are looking at at least 6 months in the shop, potentially 7-9 months or more. This is an unreasonable timeframe for repairs and hence this complaint. Please advise how I might proceed from this point to get the matter resolved soon.