2025 Chevrolet Colorado problems

“I am reporting two brake-system failures involving my 2025 Chevrolet Colorado. Both involved brake-fluid leakage from the left-rear brake caliper, including a recurrence after that caliper had already been replaced under warranty. On May 27, 2026, after the truck had just been driven home, we loaded it for a camping trip with our granddaughter. When we started the vehicle to leave, multiple warning lights appeared and the truck had very little braking capability. The Chevrolet dealer documented DTC C05B0 and found that the driver's-side rear brake caliper had separated and was leaking brake fluid from the actuator side. The dealer replaced the left-rear caliper (GM part #13537065), added brake fluid, bled the system, and road-tested the vehicle. On October 19, 2026, approximately five months later, the truck displayed a "Service Parking Brake" warning. The dealer documented DTCs C060B and C2A21 and found brake fluid leaking through the left-rear caliper into the parking-brake actuator. The dealer again replaced the left-rear caliper with the same GM part #13537065 and also replaced the affected parking-brake actuator (GM part #13513581). I am concerned because…”

“At 6700 miles, the following warning lights came on: Service Trailer Brake Service ESC Service Brake Assist Adaptive Cruise control unavailable. I brought the truck to the dealer. They read the codes and found a service bulletin. “6721 found service bulletin for code C055F vehicle needs a master cylinder/booster/ebcm parts ordered” They told me it was safe to drive but I refused to drive given what I found online about this issues. The vehicle took a week to fix.”

“The contact's husband owns a 2025 Chevrolet Colorado. The contact stated that after exiting a car wash tunnel and parking the vehicle on the side of the car wash building, the vehicle continued to roll forward at a high speed without warning. The contact used both feet and excessive force on the brake pedal to stop the vehicle; however, the vehicle continued to roll forward. The vehicle ran over the parking pillar and crashed into a brick column attached to the building. The vehicle continued to roll forward after the crash and eventually stopped once it rolled over the car wash road indentation. The contact reversed out of the car wash indentation and called her husband for assistance. After her husband arrived at the scene; the vehicle was driven to the residence without any further issues. The vehicle remained at the residence and was not yet diagnosed or repaired. The manufacturer was notified of the failure, and the contact was provided a case number. The failure mileage was approximately 111,817.”

“On [XXX] after only 400 miles on the odometer, I experienced complete transmission failure while on a highway and was nearly hit by the vehicle behind me, luckily that did not happen. On April 29th, a new replacement transmission was installed by the Chevy dealer, and now on [XXX] I had experienced a severe burning smell from under the hood of the vehicle accompanied with a grinding sound, which lead to me to take it back to the dealer. On 05/15/25, the customer care manager informed me that the new transmission from the factory has metal debris inside the pan, and the vehicle would again require a complete "tear down". This is very unsafe for major powertrain components from the GM factory to keep failing, another failed transmission on a brand new truck like this is very unsafe especially because I drive on major highways to commute for work and transport my young children. This is unsafe for the public and my family, GM needs to be held accountable, they also refuse to refund me my money back on this vehicle, and are disregarding Lemon Laws in NYS.”

“When I try to accelerate some times my truck doesn’t go. It’s like it’s not even in drive. The check engine light is on and the dealership that I bought it from told me just to drive it because they don’t have a loaner vehicle at this time. That it won’t hurt the vehicle to drive but it’s unsafe to drive. I step on the gas and it doesn’t go. I could be hit if I’m trying to move when in traffic. Also my truck only had 5200 miles on it when this started and I’ve only had it since 16 July 2025.”

“Erratic operation. Indicator in side mirrors flickering with no object present. Dealer installed a new left side blind spot monitor which was tested and found to be defective, Have been waiting more than a week to have another one delivered.”