Chevrolet Bolt EV loss of power problems

Filed Aug 1, 2026 · Brakes, Electrical · MD

The vehicle suffers from severe, unresolvable electrical failures causing recurring loss of propulsion, shifting lockouts ("No Driving Conditions" / stuck in Park), complete exterior lighting failures, and loss of communication with the Restraints Control Module (RCM) and airbag impact sensors. The primary failure involves short circuits, open circuits, poor terminal contact, and thermal damage with melted, charred wiring and exposed copper in the main harness[cite: 6]. On May 25, 2026, OnStar telematics issued a critical red alert for the Regenerative Braking System[cite: 7]. All damaged components and diagnostic reports are available for inspection upon request[cite: 6, 7]. Safety risks include sudden loss of propulsion at highway speeds, total headlight and tail light loss during night driving, and potential non-deployment or malfunction of airbag restraint systems during a collision. The issues have been repeatedly reproduced and confirmed by an authorized dealership through 7 repair attempts between Sept 2024 and Apr 2025. Diagnostic steps included opening GM TAC Case 9-13634782861, consulting GM engineers, and testing 33 ground points. On Oct 28, 2024, the dealer and an insurance adjuster officially confirmed the failures are covered under GM warranty and unrelated to any accident[cite: 8]. Symptoms first appeared on Sept 10, 2024 (at 5,144 miles) with a "Waiting initialization to shift" message, blown Fuse 58, and loss of power to the ECM. Warning signs prior to subsequent failures included "Service Trans" warnings, "Reduced Propulsion" alerts, dim headlights, Check Engine Lights, SRS/Airbag warning lights, and total shifting lockouts after hitting road bumps. Despite replacing Fuse 58 (multiple times), Fuse 64, IP Fuse 7, the underhood fuse block, ECM connector terminals, headlamp assemblies, the RCM module, and multiple airbag impact sensors, the underlying electrical instability remains unresolved.

Filed Dec 22, 2025 · Acceleration, Fuel system · MD

Vehicle started to surge while driving (both small acceleration forward and large deceleration) without any change in brake or accelerator position. Eventually a "Propulsion Power Reduced" message was presented on the console followed immediately by no forward propulsion (accelerator completely unresponsive) and forced to coast to a stop on the side of the highway. Car refused to shift out of park or neutral following breakdown. Car taken to dealer to troubleshoot and was told that a P0A3F code was present and that the engine harness needed to be replaced in accordance with the federal safety agency bulletin 19-NA-220. This bulletin calls out that the harness was likely damaged during initial install at factory and the dealer representative confirmed that the pins were damaged as described. Car was given back to drive home after harness was checked (owner decided to explore options before scheduling repair), but broke down due to surging and complete loss of power within 2 miles of dealer. Troubleshooting to confirm harness damage is suspected to have worsen the condition and made un-commanded accel/deceleration followed by complete loss of power likely. Uncertain why this condition would be exempt from recall if OEM is aware of installation issues at factory. Driving with this condition was as bad or worse than other type model loss of power conditions that have been recalled. Recommend at least clarifying that cars confirmed to fall under this bulletin and associated inspection should not be deemed roadworthy until a repair is made.

Filed Jan 20, 2025 · Electrical, Fuel system · CA

The vehicle was driving and lost all power and came to a stop. After about 5 seconds vehicle regained power. The "check engine light" illuminated on the dash. took to dealer and stated could not replicate problem. Only have the report from vehicle computer and the EV technician did not understand the information and had to call GM for help. Got car back and problem happen again. Dealer had GM specialist out to help. GM reset computer and problem just happens again.

Filed Dec 28, 2024 · Electrical, Fuel system · NY

While traveling at highway speeds, my Chevrolet Bolt (2020 with 20K miles) made a clunking noise followed by a loss of speed. The clunking noise had previously been reported to the dealer, but they were not able to identify any issues at the time. During this incident, however, the car ultimately lost all speed, forcing me to pull over to the side of the highway. This sudden loss of propulsion posed a significant risk to my safety and the safety of other motorists, not only due to the loss of power, but because it happened at an interchange where multiple highways are connecting. I was left on the side of the road waiting for a tow because the car was inoperable. Prior to this sudden failure, there were no warning lamps, messages, or other symptoms, aside from the previously reported clunking noise. After this incident, the dealer diagnosed the issue as the one listed in the technical service bulletin, which states that "the terminals may not have been perfectly aligned during installation at the vehicle assembly plant." Unfortunately, this issue was not covered under the warranty and currently this problem is not a recall item for the Chevrolet Bolt.

Filed Oct 4, 2023 · Engine, Fuel system · CA

Vehicle stopped while driving down the road lost power threw up multiple codes and was stuck in the middle of the roadway!

Filed Feb 13, 2023 · Fuel system · CA

I received a "Propulsion Power Reduced" warning indicator on my 2018 Chevy Bolt while driving on the highway. Although I did not lose power, I am afraid to drive my car. I am advised by the car repairer that I should not drive the vehicle until it is repaired because it may stop suddenly without warning. GM has never contacted me about this safety issue despite being aware of the problem. the federal safety agency should open an investigation and issue a safety recall on this issue. This problem should be categorized as a severe safety hazard and listed on the federal safety agency website for the benefit of consumers.

Filed Sep 2, 2022 · Steering · CA

Our vehicle's power steering is intermittent. It randomly shuts off, leaving the driver with no power steering. Most frequently, the problem surfaces just after start-up, however, this problem also occurs after driving the car for several minutes, such as when the vehicle is parked but turned on, when the vehicle is in motion while driving, and even once in the middle of a U-turn. Once out, the power steering stays off for several minutes, sometimes only 5 minutes, sometimes 15. Once out, the power steering has a) come back on without warning 5-15 minutes later, while the vehicle is in motion while driving, or b) not returned at all for the duration of a drive. It feels unsafe to drive a car that will lose power steering in the middle of a drive. Imagine you are turning the vehicle around a tight corner at 30mph, and all of a sudden the vehicle's trajectory is instantly changed and/or affected because you aren't prepared to grip the steering wheel and apply force strong enough to hold its position without the power assist. Or, imagine the power steering goes out, and you're driving on natural power, applying force strong enough to keep the vehicle on its intended trajectory, but then, without warning, power steering returns, and you suddenly have to correct by lightening your hold? In both scenarios, the power steering is unreliably putting the driver and passengers, along with other motorists or pedestrians, at risk due to the intermittent and unpredictable power steering problem. Yes, it has been inspected by the manufacturer at a Chevy dealership and it was determined: "Internal Power Steering Module Failure. Verified on road test. Found no communication from steering control module. Test power and ground. Recommend replacement." A warning sound and a flash notice on the indicator screen both emerge simultaneously when the problem occurs, however, no messages or indications happen prior to the failure. For us, they first appeared in February 2022.

Filed Jul 28, 2022 · Fuel system · TX

As I drove my brand new 2022 Bolt (in use 30 days) into garage, the dash check engine light came on with a notice "reduced power propulsion." The battery was at about 50%. I tried to charge it and the dash indicated "charge complete." The reduced power propulsion message is concerningly similar to the error from the previous Bolt recalls that have resulted in fires. I took the car to my dealer and they have had it for 40 days and counting and say they don't know when it will be fixed nor do they know yet how to fix it.

Filed Jul 27, 2022 · Electrical, Fuel system · MD

Merging onto freeway from about 50 MPH to 70 MPH. Blind zone alert indicated there was a vehicle was in my blind spot. Proceeded to accelerate full throttle into traffic when car began shuddering and then suddenly lost power. Car would not restart and needed to be towed to dealer for warranty repair. Car was at dealer for 9 days waiting for repair.

Filed Jul 22, 2021 · Steering · OR

The car has displayed a minor loss of steering power from when I received it as well as some tapping/banging from the underneath. I only recently reported it to the dealer since I thought that the loss of power was just electrical load issues under certain conditions. The dealer investigated and reported a broken steering gear. They found NO evidence that there was external damage causing this and told me to not drive the car until it is repaired.