CHEVROLET Complaints

Drivers side head lamp adjuster broke inexplicably. I noticed while driving that the headlight was pointing down towards the ground. No warnings of any kind. I made no attempts to adjust the headlight either before or after the issue was noticed. It is difficult to drive at night because there’s essentially only one headlight working properly. The vehicle has never been in an accident. I took it to the dealer and they told me that it could not be fixed and the entire headlight assembly needed to be replaced. It’s a very extensive process that I cannot do. The cost is almost $2000. I contacted a local repair shop and they quoted a similar price. I contacted GM and they said it was up to the dealer to determine if they would offer cost assistance for the repair. The dealer refused. GM accepted their decision and could not help with the cost. How do they expect someone to afford this cost? It’s not a part they ever expected that needed to be replaced or else it would not require the front bumper to be removed. The light is designed to last as long as the vehicle so why would they not fix an obvious defect. I’ve seen others online complaining of the same problem. The adjuster arm is made with cheap plastic and separates inside the assembly. There’s no way to get to it. It is unsafe to drive at night. I cannot see the road and any light reflectors on the center line flash in my eyes because there’s essentially only headlight is pointing directly at them.

The contact owns a 2012 Chevrolet Sonic. The contact stated that on several occasions, while coming to a stop, the vehicle unexpectedly remained in second gear. There were no warning lights illuminated. The contact stated that several attempts were needed for the vehicle to shift into another gear. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for additional assistance. The failure mileage was approximately 77,000.

The contact owns a 2017 Chevrolet Silverado 1500. The contact stated that while the vehicle was parked and running, the transmission remained in neutral(N). There were no warning lights illuminated. The contact stated that while attempting to move the gear shifter, the transmission remained in neutral(N). The vehicle was able to restart; however, the failure recurred. The contact was able to drive the vehicle after several attempts. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the transmission had failed and needed to be repaired. The vehicle was repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100,200.

My 2023 Chevrolet Tahoe LS has experienced repeated service issues within the first year of ownership. The vehicle has been in the repair shop five separate times and out of service for approximately five months total. Due to extended repair periods, the mileage remains extremely low. A primary concern involved the steering system. The steering wheel was noticeably off-center while driving straight, requiring continuous correction to maintain proper lane position. Steering-related components were inspected and replaced. There were no warning lights present at the time. However, improper steering alignment raised safety concerns regarding vehicle tracking and stability. The vehicle has been inspected and repaired by authorized service providers. I am submitting this complaint to determine whether this reflects a broader safety-related issue with this model year.

My entire engine and the right bank lifters failed. Thankfully, these issues didn't fail until my truck was parked in my garage. No warning lamps did not trigger until these issues started. There was no warning. I have been having engine issues with this truck dating back to 2022. I will include all documents showing the issues I've had in the past 3 years. I was informed by the dealer that this is a known issue with this year and model of truck and even they were surprised that GM hasn't issued a recall. The vehicle has been inspected by the dealership only.

Radiator hose near failure, lose of coolant could be catastrophic. Upper Radiator hose quick disconnect O-ring inside failed.

The vacuum pump had a catastrophic failure. This led to failure of assisted breaking, and caused brake pedal to go rock hard while driving on the roadway. Metal shards from the vacuum pump broke off, and has now entered the engine. Chevy knows this vacuum pump is flawed, but did not include my model of vehicle in the recall. Even though it uses the same part. I received a “brake assist” message on the dash about 15 seconds prior to the loss of brakes. I had my wife and two kids with me, and this jeopardized their safety. Further research on the matter states this is a known issue at GM, but for some reason my year and model were not included.

Driving 30 mph down a city street when heard a pop and vehicle completely lost power at speed. Engine turned off and I coasted to a stop, which was unfortunately at an intersection and due to traffic could not get over safely. All accessories were still on however I could not restart the vehicle or put the vehicle into neutral, which left me stranded in the middle of a busy intersection. Hazards were working intermittently, at best. Had to call local PD to provide traffic control while we disconnected the battery and reconnected it while standing in an intersection. After I was able to get the vehicle restarted it had a check engine light and the OnStar app showed Transmission, Ignition, and Engine Electrical warnings. Had the vehicle towed to the dealership, where they have had it for 7 days and cannot diagnose an issue and are trying to return the vehicle to me unfixed. They stated they typically would not even try to diagnose it for this long, however I have a case open with the GM executive team.

This vehicle was sold as new when this vehicle had a defective Turbo Underboost issue from a ECM Issue previously prior to the 2022 Trailblazer being sold to us. This vehicle has a shift to park issue which sticks when you try to Park the vehicle. Next This vehicle has had 4 prior incidents of attempted repair of this Turbo Underboost and a failure to pass emissions which lead to the engine and transmission failure of this vehicle. I have waited since July 6, 2025 of this vehicle being in the shop no rental no loaner. Now no replacement vehicle. For more than nine months and a General Motors open claim since 07/06/2025! GM is hiding the truth about Recalls and Road Hazards not listed to vehicle like this 2021 Trailblazer and other GM vehicles that GM refuses to replace and cannot repair or cover the additional financial hardship placed on unwitting consumer as they sell defective vehicle wholesale or as new vehicles through Chevrolet Dealership across this goble. We must STOP this from happening. GM is not even honoring the Government Guidelines forcing victims to hire counsel to buy time and prevent massive Recalls like ours.

Faulty thermostat. Check engine light comes on due to thermostat getting stuck open and needing to be replaced. This is terrible for the engine and the environment.