Vehicle Speed Control Problems of Chevrolet Volt - part 1

I was driving my 2018 chevy Volt at about 30 mph on ev mode. The battery was at 50%, the car was performing normally. Then the battery jumped to 100%, the check engine light came on, and the vehicle lost power. I was in rush hour traffic and unable to get the vehicle to go faster than 5-10 mph. I switched to "normal" mode to engage the gasoline engine, hoping this would help but it did not. The gas engine rpm fluctuated wildly and did not restore the ability to accelerate the vehicle. I was still unable to go faster than 5-10 mph. I was a few blocks from home and managed to get home safely. The engine code was p1e00. I put the vehicle on the charger and it seemed fine the next day. This exact situation I ran into - reduced engine power - is addressed in special coverage n232432680, which includes this vehicles VIN. I took the car to the gm dealer today and they are telling me that the car is fine, they can find no problems. I mentioned that this issue is covered under special coverage n232432680, and was told that unless they can reproduce the issue in the shop, that they cannot apply special coverage n232432680.

See all problems of the 2018 Chevrolet Volt 🔎.

Car will randomly accelerate when not on gas pedal and/or a delay in brakes working. Has happened on more than one occasion.

See all problems of the 2012 Chevrolet Volt 🔎.

This vehicle has had multiple incidents of surging of the propulsion system both on battery power and when powered by the internal combustion engine, causing loss of propulsion and sudden acceleration almost causing collisions multiple times. We have paid for over $4,000 in repairs that are not covered under the propulsion system warranty, and these repairs have not remedied the issue.

See all problems of the 2016 Chevrolet Volt 🔎.

Experiencing intermittent propulsion system failure with multiple simultaneous warning messages on 2017 Chevrolet Volt at approximately 59,000 miles. Warnings displayed: - "propulsion power reduced" message - "check tire pressure monitoring system" (false alert - all tires properly inflated and recently replaced) - multiple dashboard warning lights including exclamation point indicators - vehicle exhibits abnormal driving characteristics pattern: issue occurs intermittently while driving. Vehicle can be restarted and may operate normally afterward, then fault returns unpredictably. Safety concern: this matches documented battery energy control module (becm) failure pattern referenced in gm investigation n232432680/pe23022 and customer satisfaction program 17228 recall n172096420 for reduced propulsion power in 2016-2018 Volts. Review of owner complaints shows other 2017 Volt owners experiencing sudden complete loss of propulsion while driving at highway speeds, creating dangerous situations requiring evasive action by other drivers. Risk: loss of propulsion power while driving with dependent passengers creates serious crash risk. Vehicle is used for daily transportation of minor children. Request: vehicle exhibits known defect pattern but manufacturer has not extended recall coverage. Request investigation into whether recall should be expanded to cover additional affected vehicles.

See all problems of the 2017 Chevrolet Volt 🔎.

I was driving in stop and go traffic on a relatively busy road when I was cut off. I braked hard to avoid a collision. Immediately afterwards, the car would not respond to the accelerator and would not go forward. I was in the middle of the road and the car would not respond. It could have caused an accident. I put the car into park and then back into drive and it seemed to work again. But I am now worried about the car.

The engine light starts blinking and telling me propulsion power reduced, and then I cannot use the cruise control after that turns on, and it starts losing power, driving on I 70 after work all of a sudden it turned on and wet from going 76 miles an hour to 52 on highway I 70 where the speed limit was 75. This problem was a recall problem which was fixed and now is happening again on the same part and having the same problems.

I am reporting a series of safety concerns regarding my 2017 chevy Volt, which have persisted despite multiple attempts to address them with the dealership. These issues pose significant risks to my safety and that of others on the road. On January 18th, 2024, I brought my vehicle to the dealer after experiencing reduced propulsion power while driving on the highway, coupled with the illumination of the check engine light. The mechanic performed a quick inspection and used a gm scan tool to diagnose the issue, revealing the code p1e00 for the hybrid powertrain control module 2, which was cleared without a thorough investigation. I was advised to return if the issue reoccurred. Despite the reset, the problem persisted, and on February 9th, 2024, I scheduled another appointment due to my chevy Volt's high Voltage battery charging only to 65% capacity despite indicating a full charge. Subsequently, on February 11th, 2024, the check engine light illuminated again, and on February 12th, 2024 and again on November 25th, 2025, while driving to work, both times I experienced a loss of propulsion power on the highway, placing my safety at risk and lost all power in a traveling lane of traffic. These ongoing issues with propulsion power and the high-voltage battery charging system are not only inconvenient but also potentially dangerous. Despite multiple visits to the dealership and attempts to diagnose and resolve the problem, it persists, indicating a systemic issue that requires immediate attention. The reduced propulsion power while driving on the highway, coupled with the illuminationi urge the national highway traffic safety administration (NHTSA) to investigate this matter thoroughly to ensure the safety of chevy Volt drivers and passengers. It is imperative that general motors addresses these issues promptly and implements appropriate measures to prevent further incidents.

While driving approximately 65 mph on an interstate highway, the vehicle's check engine light illuminated. Very shortly after, the dashboard screen displayed the message "propulsion power reduced," and the internal combustion engine turned on. The vehicle's power was significantly reduced, almost causing an accident when another car started merging without checking their blind spot, forcing me into the left lane in front of a third vehicle that had to brake sharply to allow me to accelerate to keep up with traffic in that lane. Upon scanning the vehicle with an obdii reader, codes p1e00, p1f06, u2603, u2604, u2605, u2606, u2617, and u2618 were present. Together, these codes indicate an issue with the battery energy control module (becm). The vehicle is currently at a Chevrolet dealer, awaiting replacement of the becm under the applicable warranty extension.

I got a warning from my car a little over a week ago (around 6/1, unsure of exact date) that I needed to service the battery charging system, but then the check engine indicator light shut off and so did the warning light. The hybrid battery took a charge with no issues after that. Then, I left work the evening of 6/9 and drove home. On my way home, the check engine light came back on, followed by warnings that I needed to shift to park. Before I could pull over, my car stopped moving. Cars had to stop abruptly behind me and navigate around me into incoming traffic. I shifted to park, then tried to turn my car off and on again. I tried to switch between the gas engine and the battery, I tried to move my vehicle in any way. I couldn't get it into neutral to push it out of traffic. I turned on my hazard lights and a person came out from his house to assist in directing traffic away from my car for about an hour while I waited for a tow truck to arrive. The kind bystander who directed traffic and I were very concerned about a car accident happening due to my stopped vehicle. A police officer stopped by to check on us and try and get my vehicle into neutral but he was unable and said he was on his way to a 911 dispatch so he did not write a report of any kind that I could see. He told me the vehicle placement was not safe and I agreed with him. The tow truck came as he was leaving. The dealership I sent my car to said it is likely a short circuit in the 12v battery but I know the becm in the chevy Volt is known to cause similar behavior. Dealership refused to service the becm when asked about it.

Unknown my car has been accelerating and decelerating on it’s own while I’m driving. I got it checked with fix finder and states that my egr valve and abs system failed. I brought it to a mechanic for a repair and I was told that the valve was unplugged so they plugged it back in and cleaned it , and said that everything was fine it said it might also be the cause of the failed abs system but everything looks fine. After I got it fixed, it’s doing the same again and it’s worse this time. The car is accelerating on it’s own faster than what it did but the dashboard is saying 0mph. I was driving in the highway when it happened and it’s scary so I had to pull over.

While driving northbound on a freeway downhill, my vehicle suddenly lost power and displayed a "shift to park" message while still in motion. I was unable to accelerate, and the engine became unresponsive. The vehicle began coasting with no power, creating a dangerous situation. A semi-truck was in the lane next to me, and a car was behind me — I nearly got into an accident while trying to safely exit the roadway. This is the second report I’ve made regarding the same issue. The unexpected "shift to park" malfunction while driving is a serious safety concern that needs immediate attention.

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.

The egr valve failed. This caused the vehicle to have insufficient propulsion while driving. The dealer has confirmed the egr valve is the problem. The vehicle is at the dealership. The check engine light came on. The dealer is now stating the replacement egr valve is a $4000 part because gm stopped making the part when they discontinued the Volt. An egr valve should cost $250-$400 not $4000. The current trade-in value of my vehicle is only $7000. I cannot get my vehicle fixed due to the cost and the vehicle is too dangerous to drive due to the power loss issues.

On 9/18/24 I was driving my Chevrolet 2018 Volt on a freeway, traveling at approximately 55 mph while starting to exit the freeway. In the middle of fast-moving traffic, on the freeway offramp and starting to decelerate, the car suddenly displayed a message saying "propulsion power is reduced. " a micro-second later, the displayed message changed to read "action required: shift to park" and in that moment I lost control of the car's powertrain. I continued to break, coming to a slow stop in the middle lane of a multi-lane offramp, with other cars speeding past and around me. I attempted to power the car down and reboot it, moving the gear shift into "park" position as instructed, but nothing changed. The car remained totally inoperable. I was on a slight decline and noticed the car moving forward pulled by gravity, so I steered the car to the farthest right of the offramp/parallel street, where I put my hazard signals on and requested the car be towed to a mechanic. I was endangered because the car lost entire propulsion while in the middle of fast-moving freeway traffic, and fellow motorists were endangered as well. I have learned that this same behavior occurs routinely with 2nd generation Volts; that there is a special bulletin related to the car's bcem * a related class-action lawsuit posed against gm/Chevrolet. I requested Chevrolet take preemptive action to repair the bcem, as I am fearful the issue will repeat and cause additional danger to myself and fellow motorists, but Chevrolet says they cannot repair the part until it is diagnosed as defective. . . Which will occur when/if the part fails again, and I'm already in danger.

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.

On December 2023 the vehicle lost power and lost control while driving speed limit 55 mph followed by check engine light associated codes due to known issue with bcem controller failing. June 2024 vehicle experienced the same issue with duplicate check engine codes associated with prior issue. Dealer states the vehicle has a bad battery pack and has been there for over 8 months. Vehicle has a becm warranty due to a law suite filed and also has a battery pack warranty from gm that was extended for 150,000 miles or 10 years.

I had the becm fail as part of many 2017 Volts with this issue at around 40k miles. This failure has caused multiple near accidents with immediately losing power at highway speeds. The last time this happened (after the becm was replaced) was a couple of weeks ago. They said the reason for the failure was a programming issue, and they have updated it. It is flabbergasting to me that a programming issue can result in such a dangerous result. The car reduced propulsion on the highway and got stuck on the offramp while trying to pull over on the busy highway. Not only were we left stranded on the highway with me being 8 and a half months pregnant, but my husband almost got into an accident twice while trying to make it over safely. Chevy needs to be accountable for these significant failures that seem to continuously happen to chevy Volts. It's not just the becm - they have multiple things that are causing extremely dangerous results. When they replaced the becm they also replaced the 12v (with significant out of pocket cost to us) and leaving us with no vehicle for a long time. We bought a new car right after this incredibly scary incident.

I bought the car new in 2015 and after about only 40,000 miles I began getting a propulsion reduced error and the car would have very slow acceleration. I took it to the dealer and they replaced the accelerator for $500. It drove fine for a month, but then the acceleration was reduced again. I took it back to the dealer and they were stumped. They wanted to charge me $1300 just to replace some wires, but they weren't confident that would fix the problem. I declined. As it stands now I can toggle the f08 fuse and that temporarily fixes it for about an hour or so, but the error always comes back and the car has a hard time accelerating. Not safe. I called gm and they suggest I take it to another Chevrolet dealer, so I'm going to do that. I'm also going to reference nhsta special coverage n232432680 battery energy control module malfunction to see if they can replace the becm. This is a common problem with 2016 chevy Volts. If they can't fix it, I'll look into the California lemon law to see if I can get my money back on the car. I appreciate your support on this.

This vehicle has been intermittently displaying shift to park, reduced propulsion and loss of power. Chevrolet will not address its problems utilizing the March 6, 2024 service bulletin that covers this model year despite it exhibiting these dangerous warnings and reduced power and stoppage. Please help!.

This car has a failed egr valve which first became evident in March of 2024. There are no parts available, this in an emissions issue but the failure causes blown fuses which can cause the car to completely stop running which is a safety issue. Reduced propulsion is a symptom which is dangerous and this has been confirmed by three chevy dealerships. I have had the egr valve cleaned to the tune of $1200, have a deposit on a new valve which doesn't seem to exist for $850. There were no other messages before the failure. I am driving the car with the egr valve disconnected, mostly on the battery power but no end is in sight to this problem.

My 2018 chevy Volt displayed a warning message of "propulsion power is reduced" on the dash when I started the car in a parking garage on Saturday, March 9th around 10am. The car would not drive normally and made a strange noise. I had to stop and start the car six or so times before it drove normally for me to get home. Had this happened at high speed, it could have caused an accident or worse. I contacted the local rockville, MD Chevrolet dealership and they ran the diagnostic test on the becm and hpcm2 systems and performed battery capacity reset. I do not believe this software reset will correct the technical issue. According to the dealership records, such a software reset was performed in 2021 by the previous owner before we purchased the car second hand in July, 2022. The dealer would not replace the becm unit but there is supposedly a special coverage bulletin issued by general motors. We need the unit replaced ASAP for safety.

I am writing to report a series of safety concerns regarding my 2017 chevy Volt, which have persisted despite multiple attempts to address them with the dealership. These issues pose significant risks to my safety and that of others on the road. On January 18th, 2024, I brought my vehicle to the provo utah Chevrolet dealer after experiencing reduced propulsion power while driving on the highway, coupled with the illumination of the check engine light. The mechanic performed a quick inspection and used a gm scan tool to diagnose the issue, revealing the code p1e00 for the hybrid powertrain control module 2, which was cleared without a thorough investigation. I was advised to return if the issue reoccurred. Despite the reset, the problem persisted, and on February 9th, 2024, I scheduled another appointment due to my chevy Volt's high Voltage battery charging only to 65% capacity despite indicating a full charge. However, upon arriving for the appointment at 4:00 pm, I was informed that the hybrid mechanic had left for the day, and I was asked to return on another day. Subsequently, on February 11th, 2024, the check engine light illuminated again, and on February 12th, 2024, while driving to work, I experienced a loss of propulsion power on the highway, placing my safety at risk. These ongoing issues with propulsion power and the high-voltage battery charging system are not only inconvenient but also potentially dangerous. Despite multiple visits to the dealership and attempts to diagnose and resolve the problem, it persists, indicating a systemic issue that requires immediate attention. I urge the national highway traffic safety administration (NHTSA) to investigate this matter thoroughly to ensure the safety of chevy Volt drivers and passengers. It is imperative that general motors addresses these issues promptly and implements appropriate measures to prevent further incidents.

My car will lose all power as I'm driving, switch between gas/ elec and almost stall, it will accelerate when I take my foot off the gas , it will lose power on a turn. . It's random. Form what I understand it's the becm and it happened just after 100k miles. I have 105k.

While we were driving on the freeway, we saw a check engine light and “propulsion power is reduced” message. The car began driving very roughly and we had to slow down. We had this happen once before where the car engine stopped working entirely while driving at city speeds after seeing this error earlier in the summer, so we pulled over as soon as we could. We were traveling in a remote area at the time, just before the holidays, and it was fairly cold out. The car dealer inspected the car and told us it was unsafe to drive, that we could not take it back until it was fixed, and that it was an egr valve problem. We previously had this fixed under warranty as well for similar behavior, and the car is barely five years old with very few miles on it. It’s our only car and we have been waiting on the part for weeks now, with no response on when we’ll be able to have our car back, and no rental car that we can drive in the meantime to get to our jobs and get groceries. The part is covered under our warranty. Both times this has happened to us, we were actively driving. In the city, it was very unsafe for the engine to unexpectedly stop as we were driving because of the amount of traffic and pedestrians, and because it meant we didn’t have full control of the vehicle. On the freeway, it was very unsafe because of the speed we were going on the freeway. Knowing that our engine was at high risk of unexpectedly stopping working while driving on the freeway from the past experience in the city made it difficult to safely concentrate on pulling over and also maneuver in traffic.

The contact owns a 2017 Chevrolet Volt. The contact stated that while driving approximately 65 mph, the vehicle suddenly lost power decelerated to 35 mph. During the failure the message "reduced power" was displayed. After turning off and restarting the vehicle, the failure remained, and the vehicle was driven to the residence at a reduced speed. The cause of the failure was not yet determined. The manufacturer and local dealer were contacted. The failure mileage was 26,000.

On December 8 2023 while traveling at highway speed my Chevrolet Volt abruptly lost propulsion and an alert was displayed to pull over and turn car off. I was on 101 in California a 4 lane highway forced to cross 3 lanes of traffic at an exceptionally slow speed in heavy traffic. It is a miracle a crash did not occur. Fortunately other drivers were aware and able to stop or quickly change lanes. Aaa towed directly to stewart Chevrolet in colma CA. It was diagnosed and I was advised it is under warranty however parts are on back order. Today 3/26/2024 ~ the car still has not been repaired and I have been advised parts will not ship until September 2024. This is both dangerous and unacceptable.

The vehicle will lose power without warning on a regular basis. The vehicle will also accelerate unexpectedly when switching from battery to engine power at speeds under 50 mph. I have taken the vehicle to the dealer and have been informed there is nothing they can do for me, the vehicle does not have any faulty components.

This vehicle has a very dangerous malfunction. There was no power when I tried to move out of the way of an out-of-control semi truck while driving on the highway by pressing the pedal. I made every effort to maneuver because I was terrified. But because of the power outage, I could have died. This is really worrying, and I hope you can address the issue raised by chevy so that someone else might be spared and so that future generations of electric cars are constructed to a standard that includes safety. Thank you.

While driving after the electric battery is used and switches over to gas, I have been getting the check engine, abs, steering, parking, and brake lights. I have lost power steering, lost the speedometer, lost fuel range, lost stabilitrak, it has randomly turned on the emergency brake while all these other things are happening, it also has said “shift to park”, propulsion power reduced. I have taken it to the dealer and they read some of the codes but say they can’t find anything wrong and they need to be able to reproduce the problem to find it. I lost all propulsion and pulled over and turned it off and it stopped with a “clunk. ” then I turn it back on and just the check engine light is on. I’m very afraid to drive it but with the lack of vehicles available to buy and the dealer not knowing how to fix it I don’t know what to do.

Car experienced sudden loss of power while driving. Warning appeared 'propulsion power reduced. ' was able to continue driving short distance home and parked. Attempted to recharge battery but it would not accept charge. I was able to restart car again with "propulsion power reduced' and drove to dealer. Diagnosis: body control module (bcm) failed. Unit was replaced. Vehicle drove normally for short period and issue repeated within one day. Returned to dealer. Issue resolved after second attempt.

See all problems of the 2015 Chevrolet Volt 🔎.

On 3/11/2023, I was heading home when my vehicle lost power in the middle of the freeway. Luckily, I was able to safely pull over to the side of the freeway. Since this is a plug-in hybrid, there are two gauges showing how much electric and gas is in the car. When I checked, both showed were empty; however, although I knew that I did not have much electricity in the battery, I had nearly a full tank of gas. The vehicle should have had automatically switched over to the gas but did not. After a few minutes of leaving the car off, I was able to restart the vehicle in gas mode and drive home safely. I brought in the vehicle to my local chevy dealership to have it diagnosed. It was determine that the computer had registerd multiple faults p0030, 31, 54, 135, 403, 405, 443, 458 and 537. They also found TSB 21-na-116. They had found that the 15 amp fuse was blown. They had to replace the egr valve assembly. Total time was 2 weeks to repair as they had to wait for the parts from chevy. Per wo, parts 12346290 (coolant) and 12691147 (valve) were replaced. After replacement, vehicle have been running fine for the past 9 months. Prior to the engine shutting off, there was a message on the screen while driving which says "propulsion power is reduced". The electric gauge was empty but the gas tank show nearly a full tank.

After the battery runs out, the engine loses propulsion and fails to run on gas. The car completely stalls in the middle of traffic. The speed drops from 70+ mph to 0. Extremely dangerous to myself and others. The issue suddenly appeared at the end of December 2022 during a long drive. The engine check light remains on and a warning reduced propulsion power is displayed every time the car is turned on. Dealer is unable to fix the issue because they already have multiple cars with the same issue waiting for weeks to be repaired. Recently filed class action law suit suggests that this problem is caused by defective bcem unit.

I was getting on the i15 freeway. After I entered, I set the cruise control and it immediately began to accelerate the vehicle to maximum speed. I was unable to turn it off and had to repeatedly push the brakes to keep the speed below 70 + mph. Smoke from the brakes began to fill the passenger compartment. I got off the freeway and when I slowed to about 20 mph, I heard a clunk under the dash and the cruise control turned off. I drove home the rest of the way without cruise control without incident. I am taking the car to a chevy dealer today to investigate the cause.

See all problems of the 2019 Chevrolet Volt 🔎.

Stuck accelerator pedal during acceleration.

See all problems of the 2013 Chevrolet Volt 🔎.

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.