My car's check engine light went on and after a while started blinking. The car would not go. When I got it towed and checked by the dealership, they said my EGR Valve had an issue and needed to be replaced. They said the part was on backorder and it could take months and tried to charge me $2,000 up front to "reserve the part." It seems like GM has deprioritized this part and is putting drivers like myself at risk of not being able to use our cars and not being able to pass emissions inspections required in my state. This was originally diagnosed in spring 2024 and I have been unable to get a replacement as of January 2025

- Arlington, VA, USA

This is a safety issue for Chevy Volt. After seven years of good operation, our 2017 Chevrolet Volt stopped running in traffic while we were driving on [XXX]. The Check Engine Light was on, and "Reduced Propulsion" Message on dashboard panel. We brought it to the dealer from whom we purchased the vehicle. Tech Report paraphrased, Customer states CK Engine Light is on and "Reduced Propulsion" Message on dash Fault Codes: P0030, P0031, P0054, P0135, P0403, P0405, P0443, P0458, P0489, P0597, P0598, P06DA, P06DB Found fuse [F03] blown for EGR valve Likely EGR Valve sticking and causing fuse to blow. The technician stated the Exhaust Gas Recirculation (EGR) Valve is defective, and needs to be replaced. Replacements are scarce, on backorder, and can be many weeks or months to wait for a part. Many report their Volt unusable, sitting idle, waiting for EGR replacement. EGR valve replacement cost is quoted as $2800, which is quite expensive for a valve replacement. This has been happening in recent time to many Volt owners. There are many reports in online forums and no the GM forum website. [XXX] There has been no diligence, interest, nor cooperation from GM. The cost of replacing the defective valve is usurious, outrageous, indefensible. This is a problem well known by GM, who neglects their obligation to contact owners of a safety hazard inherent in their vehicles. The Volt's EGR valve can cause the car to shut down by blowing the "walk home" [F03] fuse, which was our experience. This is a safety issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Shoreline, WA, USA

Problems with EGR valves still in defects, and engine gaz motor loose power. GM don-??t have enough parts to resolve them.

- Lauderdale Lakes, FL, USA

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.

- Orange, CA, USA

The vehicle tells me to "stop and shift to park" while I am driving, and power was lost to accessories such as the climate control. Since the EGR was identified as the cause of the problem, the car remains on "Propulsion Power Reduced" mode. The EGR has been backordered for months, if not years, and aftermarket third-party EGR valves are not readily available either. However, there is no recall, and this is clearly a common problem on these vehicles as attested on GM-Volt forums. The EGR failed about one year ago, but now the message on reduced propulsion power is presented every time I start the vehicle.

- Statesboro, GA, USA

Vehicle went to low power mode on the interstate (I4) and was unable to drive at normal safe speeds. Engine overheated and would not allow vehicle to drive over about 10 mph, had to drive slowly on interstate until I could pull off safely to let it cool and get towed home. Technicians verified it is the known EGR valve issue, which happens often and isnt covered under any warranty. From research online this is a common problem that strands people in Volts and GM wont fix and cant even get more parts for to repair vehicle. Can leave people with sudden power loss while driving and limit driving speeds to unsafe levels unexpectedly.

- Cocoa, FL, USA

The EGR valve failed and has been on order for over 6 months. I unplugged it to keep the car operational, but it will not pass an environmental inspection without a new valve. THIS IS A VERY COMMON COMPLAINT ON ONLINE FORUMS. Something needs to happen to force GM to resolve this issue.

- Texarkana, TX, USA

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)

- Porter Ranch, CA, USA

In what appears to be (based on Google search) hundreds of Volts have the failure whereby the ERG valve fails, but GM is no longer making the part and has an indefinite date to produce them. When this part fails the engine light comes on the the vehicle is not allowed to go over 45 MPH, creating a safety issue when on highways (I live rural, all all roads are over >=55 MPH). GM is unwilling to trade the car at fair value for a new one, nor willing to provide loaners. So the car can only sit in the garage with no resolution. GM is aware of the issue, nut is unwilling to address.

- Arcadia, WI, USA

Just purchased and not a week in it dies after I have charged it. I was in drive, at a red light when all of a sudden the car dies. No warning whatsoever. Was not able to turn it on afterwards. Had to get towed to my local Chevrolet dealership that has not been able to fix it for the last month with no ETA on a fix.

- South Jordan, UT, USA

On July 21st, 2024, the Exhaust Gas Recirculation (EGR) valve failed. It blows the -??Non Walk Home-?? F03 fuse, resulting in the check engine light and a -??Propulsion Power is Reduced-?? warning message. The vehicle is not to be driven in this condition. The EGR valve is included in the Emission Warranty Parts List and the PZEV Emission Control System Defect Warranty (15yr/150,000mi) is active on the vehicle. The vehicle has been to two Chevrolet service centers, Mission Bay Chevrolet on July 22nd and Kearny Mesa Chevrolet on August 6th without successful repair. They explain that the EGR valve part is on backorder and have no estimate for its availability. The vehicle has been at the Kearny Mesa Chevrolet service department for 55 days. Having the vehicle suddenly and unexpectedly enter a diminished propulsion mode at freeway speeds is unsafe.

- San Diego, CA, USA

As I understand it, the EGR valve failed causing the car to shut down suddenly on the highway. Apparently by blowing the "walk home" fuse. The EGR valve has been unavailable from GM worldwide since Oct 2023 and there is no estimate when it will, if ever, be available.

- Shrewsbury, MA, USA

Reduced propulsion message appears on the dash and car lost propulsion on the highway. The EGR blew a fuse and the car enters the walk home mode. This problem should be covered under warranty but my dealership says it is not covered. This issue causes the car not to be able to drive. Chevy is back ordered for the part and there is no estimate of when the part will be available. They apparently do not make the part anymore and there is no fix. the GR seems to have bad soldering and blows the fuse #3.

- Falcon Heights, MN, USA

While driving on high-speed devided highways including stretches where traffic was 2-way (single lanes separated by concrete barrier during road maintenance) Chevy Volt indicated "reduced propulsion", and in 2 cases forced shut-down of electric and gas engine where the single-lane travel had cement barriers on both sides of the driving lane.In at least one case, the engine forced 30-40 mph travel until a break in the right-hand cement barrier was interrupted and I could get off the highway. In another case, the engine and fuel propulsion shut down but there was a breakdown lane on the right allowing traffic flow but exposing me to risk due to how close 65 mph traffic was passiing me. In each failure case, after turning off and re-starting the vehicle, the vehicle seemed to have re-set propulsion control and I could continue the trip at normal speed until another warning but not complete faillure occurred (both lanes being available so I could drive to an exit, turn off the ignition, restart and resume the travel). I believe the failure was in the BECM (Battery Energy Control Module) but the Chevrolet dealer identified an EGR failure that prevents their repair team from diagnosing the BECM. Whatever the failure was, it put me iin a very dangerous situation in at least 2 points in my 600 mile trip.

- Marblehead, MA, USA

While driving, a warning chime sounded and a message appeared saying "propulsion power reduced." The check engine light also appeared. The car lost power, would accelerate only very slowly, and eventually died along a busy road. After a period, I was able to restart car and drive very slowly to dealer. I was told that the problem was a faulty egr valve, which was blowing a fuse and would do so again. Dealer was unable to find a replacement valve anywhere in the nation. GM apparently is not manufacturing replacements for this components, and from reports found onliine, plenty of others have had the same problem. The temporary fix is to disconnect the egr valve, which results in increased vehicle emissions. I will be unable to pass my next emissions test next year. The safety issue is that the vehicle can quit running without warning in any situation.

- Churchton, MD, USA

Reduced propulsion power and check engine light. EGR valve failure per mechanic. Part has been on a global back order for 1.5 years. The car will not pass emissions testing and can blow a fuse that will make the car inoperable. The part is also costly at $2400 without labor costs. My car has 83,000 miles, is well-maintained and only 7 years old and now I can-??t drive it or sell it.

- The Hills, TX, USA

I was driving on the interstate when my check engine light came on and the car told me it was going into reduced power mode. I then had to limp my car along on the interstate till I could get off the road, many close calls going 45-50 mph on a 70 mph road.

- Menomonie, WI, USA

Experienced severe engine failure while driving on the freeway, which cost to be in operable due to failure of EGR valve. This is a warranty repair however GM has part on backorder for over a year with no plan to fix. My car is now disabled and I have no other transportation.

- Pleasanton, CA, USA

Component or System Malfunction: The Exhaust Gas Recirculation (EGR) valve in my Chevy Volt failed, causing a complete loss of vehicle power and potentially leading to engine overheating. This malfunction has been widely reported among other Chevy Volt owners, and the EGR valve has been improperly designed. The part is not available for replacement, making it impossible to fix the issue, even though Chevy lists the cost at $3,000 to $4,000. See [XXX] as a sampling of people experiencing the problem. Safety Risks: The failure of the EGR valve puts both my safety and the safety of others at serious risk, as the sudden loss of power could result in accidents, especially when driving at higher speeds or in heavy traffic. Additionally, the potential for engine overheating increases the risk of further damage or even fire. Problem Confirmation: This problem has been reproduced and confirmed by my local dealer, who informed me that replacement parts have been back-ordered since April, with no estimated delivery date available. Many other customers are experiencing the same issue and have also been unable to obtain the necessary parts. Inspections: The vehicle has been inspected by the dealership, but no solution has been provided due to the lack of available replacement parts from the manufacturer. The manufacturer has not offered a viable timeline or alternative resolution. Warning Signs: Prior to the failure, I experienced warning lights related to engine performance. These warning messages first appeared in April, signaling an issue with the EGR valve. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Eden Prairie , MN, USA

Received the vehicle on 8/6/24 with 96,500 miles on it. On 8/15/25 I received a check engine light with error code P0401 indicating an issue with the EGR Valve. I took the vehicle to my dealership which confirmed the issue and was informed that it was a common failure with this type of vehicle. I was placed on a waitlist for the part which as of today, 9/9/24, still is not available. A quick Google search shows that that this error is extremely common for these vehicles.

- Largo, FL, USA