Car had not properly charged for the last 2 nights despite saying it was charging the entire time. When leaving my residence the car suddenly stopped working and I had to pull off to the side of the road with no power. The car was then stuck in park and would not turn off.

- San Lorenzo , CA, USA

[XXX], while driving on [XXX], check engine light came on with reduced propulsion warning. Continued driving to destination without incidence. Did not drive again until [XXX]. [XXX] while driving using "hold" method of propulsion using internal combustion engine, check engine light remained on, after the engine warmed up, all of the sudden, there was a noticeable reduction of power, followed shortly by the internal combustion engine shutting off while I was entering onto an interstate highway ramp. Fortunately I was able to pull off to the side of the road and back down the ramp without incidence and return home under grossly reduced battery propulsion. July 8, took vehicle to Chevrolet dealership (Baierl Chevrolet, Wexford PA) under battery power. Was told ECM module was bad. ECM module was replaced, error codes cleared, vehicle ran as expected. after driving approximately 50 miles, check engine light with reduced propulsion warning returned. Turned vehicle around and returned to the same dealership. Was told EGR valve was bad while blowing fuse F03 (Non walk home circuit). The dealership did not have a replacement in stock and it would take 7-10 days to obtain a replacement. I had to rent a vehicle out of my own pocket to return home for employment purposes. July 11th, I emailed dealership's service advisor for status of replacement part. Never heard back from service advisor. July 15, 11:24 am, talked to dealership service advisor, was told part was in transit with no estimated delivery date. July 22 called service adviser and left a voice mail message for a return status call. Never received a return call. July 23, called dealership, talked to parts department for part status, was told part had not shipped from warehouse yet and there was no estimate on shipment. After having to return the rental vehicle, I am without a vehicle for my daily required activities. Not an acceptable situations. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Baltimore, MD, USA

My BECM (battery energy control module) failed. Chevy recalled this for -??some-?? Volts of my year, but not mine. It cost $3k to fix. How can they say my BECM was not defective if it failed? They knew it wasn-??t working and recalled it for some, but not all. They need to recall all Volts becm. This feels very shady.

- Blaine, WA, USA

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.

- San Diego, CA, USA

Driving at highway speeds, check engine light came on with a warning of "reduced propulsion power" and sudden loss of speed in heavy traffic. Dealer diagnosed issue as failed EGR valve but is unable to source repair part due to frequency of failure causing years-long backorder.

- Fort Lauderdale, FL, USA

On a recent trip on a highway on our 2017 Chevy Volt, the Exhaust Gas Recirculation [EGR] failed and caused "low propulsion" errors. We ended up with a surprise bill of more than a thousand dollars to replace the EGR cooler assembly, but the problem was not resolved. The dealership then said we need to replace the EGR Valve which is estimated above $2700 plus labor. Upon checking the GM-Volt users community this is a reoccurring issue on several thousands of vehicles and the inflated price is due to the fact that GM redesigned the EGR valve to fix their original faulty design. We as consumers shouldn't be responsible for such an outrageous cost and mainly safety due to a design flow by GM. This issue should warrant a recall by GM to fix the issue once and for all.

- Cedar Falls, IA, USA

The EGR valve had an electrical short, causing the 15A F03 fuse to blow. This causes a "reduced propulsion" message to appear and also causes the vehicle to start overheating. The faulty EGR valve is available for inspection. This failure occurred while we were on the interstate driving 70mph. We were also at least an hour from home/family. The EGR valve short is a known problem with Gen 2 Chevy Volts. Online message boards are filled with posts about this issue. The vehicle was inspected by a Chevy dealership (we had to have it towed). However, the EGR valve is on national backorder with no ETA on when they would be available again. We are currently driving the car with the valve unplugged. However, this causes the engine to run less efficiently and at higher temperatures, so we cannot run it for long periods of time. There were no warnings before the problem occurred, it just suddenly happened while we were driving on the interstate. Luckily we were near an off ramp and a hotel; since the problem occurred on Easter weekend, there weren't any dealerships open.

- Waterford, MI, USA

Driving at freeway speeds when suddenly the cars propulsion power failed and I went from 75mph to 45mph with no warning and no way to accelerate. Happened multiple times even after pulling over and turning the car on and off. I was told by the dealership that was a gas engine part and that I could drive it on the electrical engine only. When attempting to drive on the electrical engine, I received a notice of engine failure and had to coast into the driveway of a dealership. I was told the engine -??could explode-?? if I continue to drive

- San Luis Obispo, CA, USA

The car stalled at a high rate of speed on a freeway because of EGR failure. Engine check light is on, along with a warning about a critical problem with emissions system that requires immediate attention. The part is out of stock in all dealership within a reasonable reach. The problem is under warranty, but I have made multiple attempts to fix this issue with no success.

- Oceanside, CA, USA

Intermittently, I can't shut off my Volt. The following message is displayed: "Shift to Park"

- Portland, OR, USA

Driving at highway speed car would slow down on its own and go into "Reduced Propulsion Mode"

- Port Clinton, OH, USA

The contact owns a 2017 Chevrolet Volt. The contact stated that while his daughter was driving at an undisclosed speed, the check engine warning light illuminated. The contact stated that the next morning when he attempted to start the vehicle, the vehicle made an abnormally loud sound. The contact shifted into reverse and the vehicle stalled. The vehicle was towed to the dealer. The vehicle was diagnosed with a battery malfunction. The vehicle was repaired; however, the check engine warning light remained illuminated. The contact related the failure to Manufacturer Communication Number: 10251431 (Electrical System) and TSB Number: N232422680 (Special Coverage Battery Energy Control Module Malfunction). The manufacturer was made aware of the failure and the contact was informed that the vehicle was not included. The failure mileage was approximately 142,974.

- Rowlett, TX, USA

My service engine light came on. After that happened, my engine started to get hot. It got up to 230degF, received a reduced propulsion message and wanted to shut down when going 70mph on the interstate (depended on the construction). Quick reaction on my side before the engine shut down I had "held" the battery (which i do for long trips to ensure options in event of emergencies). Meaning i still had energy in the battery that could be used to propel the vehicle. I was able to shut down the engine by unholding the battery before losing control of the vehicle due to no propulsion. The electric propulsion took over and I could get off the freeway. Conditions were: I was driving in a rain storm on a very busy interstate around Eau Claire wisconsin right around 5-6pm with lots of road construction. If I would have lost the engine and power, I would have crashed at a high rate of speed. I would have lost steering, windshield wipers and headlights. Investigation showed that fuse F03 (walk home fuse) was blown. Further investigation showed that the EGR Valve circuitry was causing this failure. After unplugging EGR valve and replacing the fuse, engine was able to run and not overheat. Plug the EGR valve back in and the fuse blows again This is a well known issue on these vehicles and has been around since 2019-2020. Lots of data and information available on this issue on the internet. To make the issue worse. No parts are available for replacing this faulty valve at the moment. Only 6 valves available in the whole USA with those promised to other customers (i Called the dealers). Additionally there are more vehicles waiting for these valves.. Vehicle goes to the shop on [XXX] for confirmation of issue and get on a waiting list for the EGR Valve. I can't believe this is allowed to continue with GM. THis needs to be fixed!!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Scipio, IN, USA

While car will turn on as normal, wheb put I to drive is says "Action Required - Shift to Park". The CEL code indicates, among other things, "EV/Hybrid Battery ppsitive contactor circuit stuck closed". I've read this has happened to may owners. Reading online seems to indicate

- Bozeman , MT, USA

Shift to park warning comes and car will will not shut down I have already had this repaired in 2019

- Fullerton, CA, USA

Had to replace EGR valve after losing power on the highway back in 2022. Lost power steering and reduced engine power while driving at highway speeds, luckily was able to get off the highway and limp the car back to my house. I almost crashed due to loosing engine power and power steering. It's appears to be a BECM issue.

- Kingsland, GA, USA

We bought the car for our son when he began to drive. We liked the idea that it was gas and electric. At the time, our son was into electric vehicles. At 44, 000 miles, 7/10/20 the car was taken to the dealership. The engine light was on at this point, the message displayed "Propulsion Power is Reduced". Once the diagnostic was done it was said that the EGR valve needed replacing. Of course, this is during the of COVID. Everything was shut down. No one is working. It is now a wait game. Prior to this our Chevy Volt has been in and out of the dealership with either recall or something else. We enjoy the car because of how it operates with gas and electric. Fast forward it is 80,000 miles now, and the car is at the dealership again. It has currently been there for almost a month. After blowing fuses it has be diagnosed as the EGR valve needs replacing again. The part is not available currently. No one seems to know when it might be available. The part cannot be purchased from our local distributor. GM is the only ones who makes it is our understanding. There is no other dealership near us that has certified technicians who can work on them. We called around and asked. We want to know what the solution is. How can this be prevented? We were over an hour away from home and no dealership was open when it went out the last time. It became worse to the point that we were stopped on the road with flashers on because it was not safe to pullover. Prayer works.

- Camilla, GA, USA

The contact owns a 2017 Chevrolet Volt. The contact stated that while driving at approximately 60 MPH, the Battery Range Zero Miles message displayed, and the check engine warning light illuminated. The Propulsion Power Reduced message was then displayed, and the engine inadvertently shut off. The contact coasted the vehicle to the side of the road and shifted the transmission into park(P) when the Shift to Park message was displayed. The vehicle was towed to the dealer, who reprogrammed the power inverter module, and cleared the DTC codes. The failure recurred 60 days later, and the vehicle was towed to Chevrolet Van Nuys (5949 Van Nuys Blvd, Van Nuys, CA 91401), where the 12V battery was replaced and the DTC codes were cleared; however, the failure persisted. The vehicle was towed back to Chevrolet Van Nuys (5949 Van Nuys Blvd, Van Nuys, CA 91401), but the vehicle was not yet diagnosed or repaired. The manufacturer was not made aware of the failure. The contact related the failure to NHTSA Action Number: PE23022 (Electrical System). The failure mileage was 61,956.

- Sherman Oaks, CA, USA

On 2/11/23, our 2017 Chevrolet Volt displayed a check engine light and the engine started to overheat, as determined by the driver from the dash coolant temperate display, while driving down the interstate after 1 hour of driving. The car was pulled over to the side of the road and towed home. Upon inspection of the Chevy Volt later, the F03 15 amp mini-fuse(referred to as non-walk home fuse) in the main engine fuse block had blown, which had likely caused the electronically controlled thermostat to close and the engine to quickly overheat, due to lack of coolant. The reason why the F03 15 amp mini-fuse blew is because the control board for the EGR valve catastrophically failed and overloaded the fuse of this important shared electrical circuit. The electronic thermostat is part of this shared circuit, in addition to the EGR valve and possibly other important vehicle functions. I consider this cascade of electronic and engine/cooling failures to be a safety issue for the driver, in addition to being a poor design. As GM doesn't currently have any replacement EGR valves for our 2017 Chevy Volt, which includes the EGR valve control board, we are forced to disconnect the EGR valve from the vehicle and replace the F03 15 amp mini-fuse, in order to make the car drivable. This is contributing to increased vehicle emissions and reduced vehicle efficiency. In locations with emissions inspections, this EGR valve parts shortage results in the vehicle failing inspection and being made undrivable. I think the NHTSA should force GM to recall any 2nd generation Chevrolet Volt vehicles that have this defective EGR valve/control board, due to its cascading effect on the safe operation of the Volt.

- Evansville, IN, USA

We were driving in traffic. The battery had plenty of charge. Suddenly, there was a warning notice about propulsion power problem and the car converted to gasoline mode. We continued to destination and parked. When we went to start the car, it would not start at all. Had car towed to our local Chevrolet dealership (all service done there) and that is where it is still sitting. The part needed (battery) is on back order. This occurred on July 21, 2023. Today is March 13, 2024! as of today....approaching 250 days sitting in the dealership open lot,

- Laguna Niguel, CA, USA