CHEVROLET Complaints

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where the contact was informed that the recall parts were not yet available, and that the dealer had been made aware of the recall. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

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 and again on November 25th, 2025, 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 illuminationI 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.

My 2019 Chevrolet Malibu has severe safety defects involving the engine, powertrain, and speed control. The vehicle will sometimes accelerate on its own with my foot off the gas, and other times it loses all power while pulling into traffic. This creates an immediate risk of a crash. Multiple diagnostic codes appear repeatedly, including P0299 (turbo underboost), P0101 (mass air flow performance), P1101 (intake airflow performance), and P0506 (idle control RPM too low). The charge-air hose repeatedly blows off the throttle body while driving, causing sudden loss of power. The vehicle was sold to me by a dealer as safe and reliable, but these defects appeared shortly after purchase. The unintended acceleration and sudden loss of power make the car dangerous to drive. This appears to be a serious mechanical and safety-related defect that could cause an accident.

The turbocharger cracked at only 50,000 miles. My mechanic stated it is a common issue with this engine size.

The contact owns a 2020 Chevrolet Suburban. The contact stated while driving 25 MPH and depressing the accelerator pedal, the vehicle started shuddering. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced. The vehicle was then taken to the dealer, where it was diagnosed and determined that the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The approximate failure mileage was 95,000.

The contact owns a 2021 Chevrolet Colorado. The contact stated that while driving at an undisclosed speed, the vehicle shuddered and failed to decelerate as intended while the brake pedal was depressed. An unknown message was displayed. In addition, the contact stated the vehicle failed to respond properly while the accelerator pedal was depressed. Upon inspection, the contact noticed an abnormal engine oil leak. The vehicle was towed to the residence. The vehicle was later towed to a local dealer, where it was diagnosed with an exploded brake booster and metal shavings inside the engine. The vehicle remained at the local dealer unrepaired due to the cost. The local dealer could not guarantee that the repairs would correct the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 70,000.

What component or system failed or malfunctioned, and is it available for inspection upon request? Based on information from ODI Resume EA25007 & Safety Recall N252494002, it is more than likely engine connecting rod bearing failure. How was your safety or the safety of others put at risk? I was traveling at freeway speed, 70mph when it occurred. Has the problem been reproduced or confirmed by a dealer or independent service center? 11/25/25 at 12:33 (pacific), I am currently stranded 190 miles from home and waiting for the truck to be towed to the dealer. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? It has not. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Prior to Failure: Since I’ve owned the vehicle, I’ve notice slight ticking and slight knocking during cold start within the engine bay. At the time the noises seemed normal and not cause-for-concern. At Time of Failure: I was traveling on level grade on the highway when I heard a deep knock from the front, bottom left side of the engine bay. Within about a minute from the initial noise, I received a “check engine” warning light and a message of “ESC Warning” displayed on my instrument cluster. At that moment, I noticed the engine noise become more prevalent and constant. I immediately slowed and coasted to my next exit off the freeway.

The auto emergency braking engaged while making a left turn. No cars in front. Had someone been behind me, they could have easily hit me. The seat belt locked as well resulting in being able to feel the seat belt inprint hours afterwards. This incident just happened on 11/24/25 and has not be inspected by any dealership or service center. There were no warning lights or messages prior to the incident.

The contact owns a 2024 Chevrolet Trax. The contact stated while driving at various speeds, the passenger's side mirror blind spot detection system failed to operate. The message "Side Detection Temporarily Unavailable" was displayed. A dealer was contacted. The contact stated that the failure had occurred on several occasions. The vehicle was taken to a dealer, where it was diagnosed, but the diagnostic information was unknown. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that it was an unknown failure. The approximate failure mileage was 29,953.

My vehicle displays a "shift to park" message on the dashboard, even when the gear selector is in the park position. This prevents the car from being shut off, and in sometimes, the doors may not be able to be locked. Not understanding the issue initially has thus caused me to have to replace my car battery numerous times for battery drainage.