2017 Chevrolet Volt electrical system problems

“The contact owns a 2017 Chevrolet Volt. The contact stated that on several occasions while driving at 65-70 MPH, the vehicle lost motive power or experienced reduced motive power. The "Reduced Propulsion" message displayed, and the check engine warning light illuminated. Additionally, upon parking, the "Shift to Park" message displayed, causing the vehicle to fail to turn off until the contact pressed and held the Engine Start/Stop button multiple times. A diagnostic trouble code for the battery energy control module (BECM) was retrieved. The vehicle was taken to the dealer but was not diagnosed. The contact associated the failure with Special Coverage: N232432680 (Battery Energy Control Module Malfunction); however, the dealer informed the contact that the vehicle was not covered under the special coverage. The manufacturer was notified of the failure by telephone and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 125,000.”

“My 2017 Chevrolet Volt, with 97,758 miles, experienced a failure that rendered the vehicle inoperable. The vehicle would not start or operate normally. The vehicle was taken to an authorized Chevrolet dealership for diagnosis. After several days, the dealership confirmed that the Battery Energy Control Module (BECM) had failed. The dealership quoted approximately $2,500 for replacement, including parts and labor. This failure presents a serious potential safety concern because BECM malfunctions can result in loss of propulsion, reduced power, or an inability to restart the vehicle, potentially leaving drivers stranded in unsafe locations. General Motors has previously recognized BECM failures in certain Chevrolet Volt vehicles and established a special coverage adjustment for affected vehicles. However, despite my vehicle experiencing the same diagnosed component failure, GM informed me that my VIN was excluded from the coverage program. I contacted General Motors directly and opened a case. GM confirmed that my repair would be considered an out-of-pocket expense and advised me to report the failure to NHTSA. I believe this failure warrants investigation…”

“2017 Chevy Volt, lost propulsion and stalled on a highway in 3 separate instances. GM Case # XXX: The first instance, in late 2021, resulted in a BECM replacement. The following instances, XXX and SXXX, had the exact same symptoms: loss of propulsion on highway, shift to park, full charge but 0 range, check engine light. GM Case # XXX: In March the vehicle was towed to Haselwood Chevrolet in [XXX] and they told to check for BECM issues. The dealership refused to include the customer description of the failure on the highway, or acknowledge there was a possible BECM issue, since they said there was no BECM code. The failure presented as a classic intermittent BECM thermal failure. They failed to follow GM's diagnostic tree for an intermittent communication loss, as per GM Technical Service Bulletin PIP5812. Because of that diagnostics failure, I am now completely disabled, again, at [XXX],191 miles, 6 months later. This is a single, continuous warranty failure spanning from March through Sept 2026. GM Case # XXX: Due to previous misdiagnosis, I am awaiting GM’s pre-approval or referral for a rental car as covered by GM Special Coverage Program XXX, before having…”

“The contact owns a 2017 Chevrolet Volt. The contact stated that while driving approximately 50 MPH, the "Propulsion Power Reduced" and "Shift to Park" messages were intermittently displayed on the instrument panel. The vehicle lost automotive power and stalled, and the contact pulled over to the shoulder to avoid a crash. The failure had occurred on several occasions. The contact sustained emotional distress from the failure. The vehicle was towed back to the residence and then towed to a dealer to be diagnosed, and it was determined that the battery needed to be replaced. The vehicle was towed to an independent mechanic to be diagnosed, and it was determined that the battery energy control module needed to be replaced. The manufacturer was notified of the failure. The failure mileage was approximately 43,000.”

“The contact owns a 2017 Chevrolet Volt. The contact stated that he had experienced a recurring loss of propulsion that would occur shortly after vehicle startup, which was attributed to a failure with the Battery Energy Control Module (BECM). The failure caused the check engine, ABS, Stabili-Trak, and Forward Collision Avoidance warning lights to illuminate. The contact informed the local dealer of the failure and was referred to the manufacturer for assistance. The manufacturer acknowledged that there was a Customer Satisfaction Program for the failure, but the vehicle was not included. The contact was referred by the manufacturer to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 95,000.”

“Chevrolet is denying that my car is included in Special Coverage Bulletin N232432680, because of where it was built. The car is now in Kentucky, which is not a CARB state. Was the reason for a vehicle not to be included in the bulletin because it would be included under CARB? It seems like a loophole they are using not to fix my car. Am I wrong?”