2018 Chevrolet VoltRecalls, problems, MPG & safety

“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…”