2017 Chevrolet Volt

BECM failure. My car is available for inspection upon request. This car has unexpectedly stopped adequately accelerating all of a sudden while on the road! This problems has been confirmed by the dealership. The manufacturer has not inspected it. Not much warning. I found out SOME not ALL chevrolet volt 2017 users got their BECM replaced without cost because it is a WELL KNOWN ISSUE with the car. Chevrolet did not provide extended warranty for all chevrolet volt users even though it is an issue with most volts. I do drive much. I got the car when it was brand new and in 8 years accumulated 77k miles. If I had known all of the cars would have had this safety issue I would not have bought the car in the first place. Chevrolet expects me to pay 2500 out of pocket for something they know is faulty and dangerous in their vehicles.

Failure of Battery Energy Control Module (BECM), within the high voltage battery. Vehicle is unable to charge and sets “reduced power” message. GM released special coverage bulletin for this issue (N232432680), but this vehicle is not listed due to which state it was registered. Continued failure of the BECM will lead to inoperability of the vehicle.

The contact owns a 2017 Chevrolet Volt. The contact stated that the vehicle failed to start while parked. The check engine warning light illuminated and remained illuminated, with several unknown warning lights illuminated. The vehicle was restarted. The vehicle was taken to the dealer, where it was diagnosed with Battery Energy Control Module (BECM) failure. The manufacturer was notified of the failure and informed the contact that the repair would be at the owner's expense. The approximate failure mileage was 84,000.

The contact owns a 2017 Chevrolet Volt. The contact stated that while driving at an undisclosed speed or while starting the vehicle, the check engine warning light was unexpectedly illuminated. Additionally, there were several error codes provided through the Mobile App for engine-related failures. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 92,000.

Coolant was found inside the Lithium-Ion battery module when the dealership opened it to repair a different issue. They condemned the battery on the spot. There was no damage to the battery module. All PMs were performed at Chevrolet dealerships throughout the life of the car. All recalls were fixed. Including the BECM replacement the car is known have problems with. Car had 127,000 miles on it. One of the service reps even admited that he's seen it on multiple cars and that it is a manufacturing problem. Dealership said the repair is $29,000. The car was $35000 new 10 years ago. Thank God there was no fire, I drove my family around in that car for years. The dealership won't even let me see the diagnosis report online anymore...

Three separate high-voltage battery section failures within one year, each causing complete loss of propulsion. Two occurred at freeway speeds on [XXX]. FAILURE 1 ([XXX]): Vehicle lost propulsion. Dealer diagnosed DTC P0AFA (low voltage), failed cell in Battery Section 3. Section 3 replaced under GM Special Coverage N232432680 (BECM, 15yr/150k). Vehicle out of service approximately six months awaiting GM authorization and parts. FAILURE 2 ([XXX]): Vehicle lost propulsion on [XXX] at night at freeway speeds. Required towing. Dealer diagnosed DTC P0AFA, Cell 85 at 1.85V in Battery Section 1 (different section). Section 1 replaced under same Special Coverage. Vehicle returned Jan 28, 2026. FAILURE 3 ([XXX], ~300 miles after Failure 2 repair): Vehicle again lost propulsion on the freeway with check engine light, then progressed to no-start condition. Towed to dealer. Diagnosed Feb 20, 2026: DTC P0AFA, Cell 57 at 1.5V in Battery Section 2 (GM minimum spec 2.5V). Third distinct section failure. Vehicle remains at dealer awaiting GM repair authorization as of filing date. SAFETY CONCERN: Loss of propulsion at freeway speeds is an immediate safety hazard. During the Nov 2025 event, the vehicle lost power on [XXX] at night in active traffic. The progressive failure pattern (three different sections failing sequentially in the same pack, identical DTC) suggests a systemic defect rather than isolated component failures. Prior section replacements have not resolved the underlying problem. Vehicle has been usable approximately 20 total days in the past 12 months. All repairs performed or pending under GM Special Coverage N232432680. GM Case [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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, November 25th, 2025, January 11th, 2026, and February 12, 2026 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 illumination, 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.

Several years ago, when I was driving the vehicle, I got a sudden "reduced propulsion alert" and the onboard coolant temperature gauge showed a significant spike in temperature. To avoid overheating, I had to pull over on the side of the highway. In the onboard fuse box, there was a blown F3 fuse. I replaced the fuse and the same issue happened again last year. After some online research, it is clear that the EGR valve failed. Unplugging the valve and replacing the fuse has returned the vehicle to normal operations, but it's now out of compliance with local emissions regulations. GM has failed to properly produce replacement parts. As of Feb 11, 2026, a local GM dealer in Bloomington, IN quoted a backorder and unclear wait time on a replacement part and quoted me at $2,000+ just for the part. If not for my quick thinking, this part failure could have overheated my vehicle causing extensive damages. GM has failed to produce enough replacement parts and given the safety issues associated with a blown fuse and overheating, NHTSA should order a recall on this part and force GM to replace the parts for owners. This is a widespread problem documented among Volt owners, and the only stopgap issue is to drive the vehicle out of compliance with local emissions rules.