CHEVROLET Complaints

Noticed knocking in the engine and excessive oil usage. I keep my vehicle maintained. I went and had the values and seals replaced around engine for oil. Not even two to three weeks later knocking again. Took it back and engine is burning oil. Read about this make and model having defective pistons and rings causing oil to burn excessively. This has cost me thousands of dollars and it's still not fixed.

I was driving my car and was at a stop sign and the vehicle started acting odd and it felt like it was lunging me forward. I was concerned that it was going to do it without my control and after that it almost sluggish and stalling until I could get it out of the intersection. Took it to a repair shop and the whole turbo unit needs to be replaced with 38,000 miles on it.

-The engine experienced internal failure resulting in low compression in cylinder 1. The failure has rendered the vehicle inoperable. The vehicle and engine are currently available for inspection upon request. The issue was diagnosed and confirmed by both an independent mechanic and an authorized Chevrolet dealership. Both identified low compression in cylinder 1 due to internal engine failure. The vehicle has been inspected by an independent mechanic and an authorized Chevrolet dealership at the request of General Motors. The vehicle became undrivable due to the engine issue. There were no significant prior warnings that would have indicated imminent internal engine failure. The check engine light turned on 2/9/26 and was first taken into a shop the next day, 2/10/26.

My transmission failed at around 69,000 miles. This was confirmed by the dealership. I bought my vehicle from and was covered under warranty. I purchased my vehicle in 2019 from a Dodge dealership and it came with a 10 year hundred thousand mile warranty for the powertrain. The tech indicated that the torque converter failed sending metal fragments through the transmission, coolant lines and transmission cooler. There were no warning indicators only hard shifting clunking when shifting and shuttering at different speeds.

The turbocharger gave code P0299 then more extensive look when you try to increase speed the turbo will not boost to allow you to go. 40-45 miles is the highest you can go . Dealership said there we complaints and recalls. The recalls are for 2017 and 2018 chevy trax. 2019 having the same issue..

Since Friday, February 23rd 2026 when my 2023 Chevy Colorado first start blowing oil out of the oil pan. almost 5 qts total was lost when it arrived at the dealership. Truck was out of service from Friday until the following Wednesday, January 28th. The truck was picked up and taken on a drive out to (January 29th, 2026) Waverly, KS from my hometown of Prairie Village, KS about 70 miles. On the way back home the truck went into safe mode at highway speeds. Lost all acceleration and barely made it off the side of the road before getting hit. Truck went back to dealership after being towed 70 miles. Where it was kept until Friday, February 6th. During this time at the dealership, they thought the problem was fixed, where again blew out all the oil while driving. Finally received the truck back. Check engine lights were still on but truck was holding oil and driving decent. Truck was doing fine until Monday February 16th. I was at a job and was driving home to finish the day. Again on the highway at highway speeds, truck goes into safe mode and limp it to gas station to again be empty on oil. It is still sitting there. Just last January the truck needed a new Transmission at 48,000 miles and at the same time a wirinig harness for the back-up camera needed replaced. Alot of things have been going wrong with this truck to be so new. It has cost me alot of out of pocket expenses.

This submission is an additional report related to NHTSA complaint #11714381. At approximately 55,000 miles, my 2021 Chevrolet Blazer experienced a sudden throttle body failure while driving. The vehicle entered reduced engine power/limp mode without warning and acceleration was significantly limited. This created a safety concern while driving in traffic, particularly when merging and crossing intersections. Diagnostic code P2101 (Throttle Actuator Position Performance) was present. A Chevrolet dealer confirmed an internal throttle body failure and replaced the throttle body assembly. Although the repair was completed, this failure occurred at relatively low mileage for a critical engine control component. A sudden loss of acceleration can pose a safety risk depending on traffic conditions. Since filing my original complaint, I have identified multiple similar reports online and in owner forums describing premature throttle body failures in GM vehicles with similar symptoms (reduced power/limp mode and limited acceleration). This suggests the possibility of a broader pattern involving this component. I am submitting this additional report so that NHTSA has a complete record of the incident and potential pattern of premature throttle body failures. If this issue is widespread, it may warrant further review or investigation as it affects vehicle acceleration and safe operation.

The contact owns a 2010 Chevrolet Corvette. The contact stated that while the vehicle was parked in the garage, and while driving at undisclosed speeds, there was a strong fuel odor coming from the vehicle. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was inspected, and the mechanic found a fuel leak on the left side of the fuel tank. The vehicle was not repaired. The contact associated the failure with GMC Special Coverage Adjustment Number: N150682 (15682 Primary Tank Module Flange Fuel and Vapor Leaks). The manufacturer was contacted and informed the contact that the VIN was not included in the Special Coverage. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 75,000.

Since 15,394 miles vehicle has experience multiple system failures upon vehicle startup. 2/24, 2/25, 12/25, 1/26. In all of these 4 instances the brakes become spongy/hard, steering wheel locks, and I am not able to control vehicle. Dash lights up; "Brake system failure - 43mph top speed", "Fwd collision system unavailable", "Service traction control", "Service ESC", "Service steering column lock", "Service brake pad monitor". Dealership has replaced, Telematic control module, Electronic brake control module (EBCM), Serial data gateway module, Park assist module and most recently they replaced the battery and cleared the codes to "fix" the same intermittent but recurring condition. In 11/24 Recall N242447990 was performed, reprogramming of Brake system control module and Serial Data Gateway Module, the exact same issue happened before and after the recall.

ABS warning light came on and brakes starting acting strange. The brake pedal was soft and was hard to depress. I took it to dealer and they checked codes and comfirmed the vehicle has serval codes. They cleared all codes and started the engine. Immediately the ABS warning came on. I am very concenedn about family, I just purchased the truck on Jan 21, 2026. Please help!!