2018 Chevrolet Volt problems

“My 2018 Chevy Volt is experiencing the EXACT same symptoms as GM's Battery Energy Control Module (BECM) Warranty Extension Program N232432680 AND Program N202307990 AND TSB 19-NA-206. My vehicle falls within the guidlines of affected vehicles, yet GM will not honor their program specifications. My vehicle has stalled while driving on the highway, not started, reduced power, and will not charge or depletes a full charge within 30 minutes. I stalled while driving 75 mph on a freeway. My car also would not allow me to shift into park while returning home, then tells me to shift into park when I am trying to tleave for work. GM tells me that "Your VIN does not fall within the repair requirements, even though your vehicle exeriences everything taking place and meets the standard requirements." The dealership tells me that I have to take it up with GM. I have children I drive to school, I drive to work, and I do not think that something of this nature, with the EXACT SAME symptoms that GM claims is happening, with the EXACT SAME codes related to the issue, with very possible safety issues being experienced should be overlooked. This has been happening for months, and…”

“FAILURE SUMMARY & SAFETY RISK: While operating in live traffic, the vehicle experienced a sudden loss of motive power and entered a "Propulsion Power Reduced" failsafe mode, creating a severe rear-end collision hazard. The vehicle is currently grounded and remains available for inspection upon request. WARNING SYMPTOMS & DIAGNOSTIC CODES: The instrument cluster illuminated the Malfunction Indicator Lamp (Check Engine), the ABS warning indicator, and displayed a persistent "Propulsion Power Is Reduced" message. A diagnostic trouble scan confirmed active high-voltage communication failures and powertrain faults: U2603 (Lost Communication with Hybrid/EV Battery Interface Control Module), P25A2 (Brake System Control Module Requested MIL), and ABS code C0500-00. PRIOR HISTORY & FAILURE TO CURE: This identical high-voltage Battery Energy Control Module (BECM) failure previously occurred in December 2025 at 97,808 miles and was presented to an authorized Chevrolet dealership for repair. The facility claimed the vehicle was repaired, but the exact same catastrophic high-voltage failure recurred in under 4,000 miles (at 101,635 miles). MANUFACTURER POLICY & OBSTRUCTION…”

“My 2018 Chevrolet Volt LT (VIN [XXX]) suffered a Battery Energy Control Module (BECM) failure at 142,185 miles. Gandrud Chevrolet in [XXX], diagnosed the failure, citing GM Technical Service Bulletin 18-NA-261 and diagnostic codes U2619, U2620, U2621, U2622, U2623 and U2624. The dealer replaced the BECM (part 24296900), programmed it, and performed associated work. The repair was completed XXX. The invoice was $3,160.70; I am seeking $3,066.25 in reimbursement for the qualifying repair expenses. GM denied coverage because my VIN is excluded from Special Coverage XXX, despite the dealership-confirmed BECM failure. I pursued the matter through GM Customer Assistance (case 106790207), mediation (case XXX), and Wisconsin DATCP (case XXX). GM maintained that the special coverage does not apply to my VIN. NHTSA previously investigated BECM failures under PE23022. However, owners continue to report similar problems in 2026, including reduced propulsion, inability to drive or restart, charging failures, and reported BECM failures. I ask NHTSA to review these 2026 complaint records alongside mine: XXX A sudden loss of propulsion can leave a vehicle unable to maintain…”

“I was driving back from [XXX] on XXX, when I received a "propulsion power limited" message on my dash with a check engine light. I pulled off to a nearby gas station and tried to scan the code to figure out what was going on when I then received the message "Engine unavailable" and the car shut off. I checked the fuse box and found that the F03 Fuse had blown. I replaced the fuse and attempted to start the car again. It began normally, but then after driving 10 feet, I received the "engine unavailable" message again with a check engine light and the car no longer had power and I had to coast into a parking spot. I checked the fuse again and found it was blown. If I had not stopped in the gas station, I would have been stranded on the side of the highway, or worse yet, I would have stalled out on the highway and potentially got hit. I had my car towed to a dealership who eventually completed their inspection of the car on XXX and determined that the EGR Valve had failed (the servo motor burned out and blew the F03 Fuse). This is a well known issue on the 2nd Generation of Volts and it is likely faulty servo motors in the EGR valves. The Dealership even included…”

“Front brake calipers are sticking on, causing the brake pad to engage the rotor causing excessive heat. Risk of fire when parked in garage. I have had the calipers taken apart and cleaned and greased and still have the issue. I have read many reports on message boards of the same issue with no fix.”

“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.”