CHEVROLET Complaints

The contact owns a 2021 Chevrolet Silverado 1500. While the contact's wife was driving at an undisclosed speed, the engine seized. The low engine power warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine failure was the result of no oil in the vehicle. The contact was informed that there was no oil on the dipstick when checked. The contact stated that the failure had occurred shortly after an oil change was performed on September 9, 2025, at Walmart. In addition, the contact stated that there was no evidence of an oil leak. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact referenced an unknown recall with a similar failure description; however, the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 62,248.

So just recently I was on my way home from my parents house, and I take a highway to get there from my home. It’s a direct shot, fastest way to get to and from. I was merging right to get in the turn lane to the highway I take, and I heard a click, and my steering wheel felt like it locked up. I look at the dash, and see it says “power steering” and then “ESC OFF”. The turn to merge onto the highway is a pretty sharp turn over a very steep hill. I had to force the steering wheel to the right, and crush on the brakes to get on the side of the road, where I could stop and inspect. I inevitably ended up giving up, because it’s freezing outside and I am not a mechanic. But it didn’t happen the rest of the way to my home. Since then though, it happens every time I drive the car. Turning the car off and on, while moving the steering wheel from left/right seems to temporarily fix the issue. Until the cars is idling again, and then it clicks off. I have a video of my steering wheel shaking and moving on its own, but this website only lets you upload pics or files. This started the next time I drove the car. Which was the day after the incident. I have not had any service done to it, as I can’t afford it. It is available for servicing upon request. I have had an check engine light and ABS light on for sometime. But I think that’s because the warning lights weren’t reset after my dad changed my oil, and my brake pads.

My vehicle was part of the recall N25494000 L87 Engine loss of propulsion. Vehicle went in for recall on Sep-30th 2025, PicoScope Inspection was done and vehicle passed. Oil was changed to 0W 40 with new oil filter. Dec-26/27 of 2025 vehicle started stalling, for no reason but no Engine light. The dealer said there was no problem because there was no engine light, so there was no way to find out what was wrong. January 11th 2026 vehicle lost propulsion 7 times on the freeway, vehicle had a hard time re-starting and started smelling oil burning smell. Vehicle Engine light stayed on, 1/11/2026 vehicle was running a little rough with abnormal tapping noise but made it to the dealer for inspection.

I was driving on the highway above 60 mph, and I suddenly got a "propulsion power reduced" alert, along with a yellow indicator light. I almost immediately thereafter got a message saying "speed reduced to 50 mph" and then "speed reduced to 30 mph." I got no acceleration when I depressed the accelerator pedal. In fact, it felt like the car had engaged the regenerative braking to actively slow me down. This is a life-threatening safety flaw, as it was difficult to get to the breakdown lane. The only reason there was no collision was that there was relatively light traffic. I managed to get to a breakdown lane and then, after restarting the car, to get off the highway and into a parking lot, where I called for a tow. The car was towed to the dealer I bought it from and, the next day, they inspected the car and determined that the auxiliary transmission fluid pump had failed and needed to be replaced. I've seen many reports on reddit that this part fails on chevy bolts. What makes this truly unsafe is that there was no warning whatsoever that something was wrong. Everything seemed fine (after I got a new battery under the big bolt battery recall) until the car suddenly cut power and slowed me down in the middle of the highway. This car needs to be recalled again.

The contact owns a 2023 Chevrolet Trailblazer. The contact stated that the ignition switch was locked and failed to release the key. The vehicle was taken to the dealer, where the cause of the failure could not be determined; however, the failure persisted. The vehicle was taken back to the dealer, where it was determined that the ignition switch had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, and a case was filed. The failure mileage was approximately 49,000.

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, November 25th, 2025, and January 11th, 2026, 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 illumination I 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.

On three occasions, gas pedal went limp, and required restarting engine to reset controls to get gas pedal working again. On one occasion, brakes failed to operate leading to a collision. And forward collision warning did not activate.

Driving on interstate and gradual onset of clicking/knocking. Within 5 minutes complete loss of propulsion and throttle. RPM went to zero. Oil pressure/temperature/engine lights all fine. Dealership states "catastrophic engine failure." My family was in the vehicle. Fortunately still had power steering and brakes and able to guide vehicle to shoulder.

What happened: In mid-December 2025, my 2020 Silverado 1500 (VIN: [XXX] ) suffered a catastrophic failure of the DEF Tank Assembly (P/N 84914535) at 29,354 miles—less than 30% of its warranted life. This is a latent design defect involving undersized terminal pins that suffer thermal degradation and melt the connector during high-amperage heater operation in arctic conditions (Ref: GM TSB 21-NA-006). Component Availability: The failed assembly is held at the dealership. I have submitted a "Part Preservation Request" to ensure it is available for forensic inspection by federal regulators. Safety Risk: The failure triggers an EPA-mandated "Limp Mode," initiating a software-forced reduction in speed. Unexpectedly losing speed on high-speed, icy Alaskan highways—where roadside snowbanks prevent safe egress—creates an extreme risk of rear-end collisions. Furthermore, a vehicle restricted to 5 MPH or rendered inoperable in temperatures of -30°F to -50°F poses a direct, life-threatening risk of cold-weather exposure in remote areas. Confirmation: Failure was confirmed by Lithia Chevrolet GMC of Fairbanks on Jan 7, 2026. GDS2 diagnostic verified DTCs P20B9, P20C1, P205D, and P204C. Data was reviewed by the GM District Manager of Aftersales (DMA) and GM Customer Assistance (Case #[XXX]). Warning Symptoms: Check Engine lamp and "Service Emission System" message appeared in mid-Dec 2025, followed by a "Speed Limited" countdown. The electrical disconnect was abrupt due to terminal pin melting, as documented in my forensic engineering report. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2020 Chevrolet Silverado 1500. While operating in negative (-41°F) degree winter conditions, the "Service Emission System" entered an EPA-mandated speed limitation in LIMP Mode messages were displayed. Dealer diagnostics confirmed DTC: P20B9 (Heater Control Circuit Open) and P20C1. The failure was identified as the melting of the Diesel Exhaust Fluid (DEF) tank electrical connector due to undersized terminal pins overheating (Joule heating). The contact stated that it was a latent design defect that posed a fire risk and a safety hazard due to sudden loss of motive power in arctic climates (-45°F). General Motors acknowledged the defect in 2500HD models, Special Coverage: N212342980; but excluded the 1500 models. The failure mileage was 29,354.