CHEVROLET Complaints

While driving on the interstate, the moonroof glass began opening without any input from the moonroof controls. The power sunshade was still closed at the time. I opened the sunshade manually so it would not interfere with the glass. After the glass opened, I was unable to get it to remain fully closed. When I was able to close the glass, it would reopen on its own several more times. I also heard a clicking sound during the repeated opening and closing. After this occurred, the power sunshade also stopped operating correctly. It would open fully, but when closing, it would stop approximately halfway and leave the front portion of the moonroof uncovered. It would not close completely. There were no warning lights or other dashboard indications during the incident. The only way I was eventually able to get both the moonroof glass and the sunshade to close completely was to leave the vehicle turned off for approximately two hours and then perform the moonroof reset/initialization procedure. After the reset, both the glass and sunshade returned to normal operation. The most concerning part of the incident was that the moonroof glass opened by itself while the vehicle was being driven, without anyone touching the controls.

1) Both screens (driver display and infotainment) go black intermittently. Sometimes the infotainment comes back on, however, you cannot use all the buttons. The hard buttons under the screen for climate control (aside from the on/off ) wont work. The climate will automatically go to 76 degrees on Max Defrost. The rear climate will shut off when this happens. It also causes the radio controls on the back of the steering wheel to not work. 2) It is extremely dangerous to not have a visual indicator for the speed at which I am driving. It is also dangerous to be driving with no AC and instead 76 max defrost, in triple digit temperatures. Especially with small children and a newborn baby. 3) The car has had several repair attempts by a Chevrolet Service department. 4) When it happens its sudden. No warnings. After it happens the Check Engine Light comes on sometimes. This started a week after the car was purchased in March 2026. It is still occurring now in August 2026.

Vehicle bucks upon acceleration in the rear end. Dealer recommends replacing the transmission.

While driving, the vehicle experienced a sudden, catastrophic loss of engine power accompanied by severe engine shaking, reduced acceleration, and a lit Check Engine / ESC light. The vehicle was towed to a technician who diagnosed a complete dead misfire in Cylinder 4. Upon detailed inspection, the ground electrode/tip of the spark plug had broken off inside the combustion chamber while the engine was running. The free-floating metal fragment severely gouged the piston crown and scored the cylinder wall, resulting in a total loss of compression and catastrophic engine failure at just under 51,000 miles. This unexpected engine failure causes an immediate and dangerous loss of motive power while operating in traffic, creating a severe crash hazard for passengers and surrounding motorists. This issue appears to stem from a known component defect (GM Technical Bulletins PIP5657C & 21-NA-255) related to premature spark plug failure and low-speed pre-ignition (LSPI) in the 1.5L turbo engine.

The contact owns a 2026 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the vehicle came to an abrupt stop in the middle of the road and the vehicle shut off. The contact indicated that the failure had occurred on four separate occasions. The vehicle was taken to the local dealer, who was unable to duplicate the failure or find a fault code associated with the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The contact was also informed that the VIN was not included in NHTSA Campaign Number: 26V289000 (POWER TRAIN). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 900.

Transmission has jerked and shuttered ever since I bought the truck. Sometime when you push on the gas the truck doesn’t immediate go, then suddenly jerks into gear and speeds off! It has gone in several times but all they do is software updates. They also said I needed a transmission flush at only 43,000 miles stating an inferior trans fluid was originally used; however they wouldn’t covered it under my extended warranty

On XXX the 2021 Chevrolet Silverado was taken to Mayse Automotive Group at [XXX] dealership for the complaint of the key getting stuck in the ignition and unable to remove causing a safety and security risk. Service department found that the transmission control in column needed to be replaced. The park switch control was defective and providing incorrect data. Service department confirmed that many vehicles alike have needed same repairs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Currently had my engine go into "limp mode" after checked engine light came on with code p1010. The coolant control valve is what is the problem, and GM/Chevy has issued a special coverage on this known part for my year make and model (Bulletin N252508341). However, according to the dealership, my VIN does not qualify for this known issue, regardless of my faulty part matching the special coverage for the year make and model of my vehicle. Now I'm stuck paying for the empty promise from Chevy.

The shift assembly is going bad and causing a Shift to Park error that GM is aware of. They have issued a Technical Service Bulletin about this exact part. The error code will cause the battery to run down leaving me stranded. The dealer has inspected the vehichle and ordered the necessary part to replace it. The vehicle has not been inspected by the manufacturer, police, insurance representatives or others but is available to have an inspection done. There were no warning lamps for this other than the Shift to Park error showing on the display when the car has been turned off. These error messages started happening around August 1, 2026.

Had the Motor replaced under recall / warranty at a certified chevy dealer. ~41k miles. 6.2L L87. GRAFF chevy of Chesterton Indiana. After long lead times and getting the run around, the truck was "done". picked it up and many things were still wrong/incorrect. They were able to take care of it. A day later, the truck died in the road. towed to another GRAFF dealer. 2 days later it was found to be a bad ground. fixed. Fast forward ~3k miles later. the transmission went out and locked up on a main roadway. Towed to another dealer (West Herr chevy Orchard Park NY). They found the root cause was due to transmission cooler lines coming loose from faulty installation during motor swap. There were also many other items found that were broken or loose under the hood of the vehicle from faulty workmanship. I am being told it is not covered under warranty because of the previous dealer's workmanship (GRAFF Indiana) I was able to get the truck put of the roadway and to a safe place, but this very well could've caused an accident, and I would like to document it.