2025 CHEVROLET Colorado

After the vehicle was parked and powered off for several hours, I started the truck and experienced an extreme and unexpected audio volume spike from the factory BOSE sound system. The startup sound and turn-signal chime played at an excessively loud level, far beyond normal operation. The sound was sudden and intense, causing immediate ear pain, ringing, and a headache. My dog, who was in the vehicle, became visibly distressed and shaken by the noise. This volume spike occurred before any media audio was playing and appears tied to the vehicle's startup and chime audio system, not user-adjustable radio volume. The turn-signal clicking remained extremely loud afterward, indicating the same audio channel was affected. The vehicle has been operating normally prior to this incident and had not been modified in any way. This occurred during normal use of a brand-new vehicle (purchased about a month ago) with no warning lamps/messages/ or other symptoms prior to the incident. The problem has been reproduced and was able to be recorded via phone video during a reproduction attempt to provide to dealer.

My 2025 Chevrolet Colorado continues to experience roof denting caused by the vehicle’s structural weakness in the roof panel when exposed to normal car-wash air dryers. This problem began in 2023 with my previous model year Colorado, and it has carried into the 2025 model despite GM having issued an internal service advisory in 2023 describing the need to install additional roof braces to prevent this exact failure. GM acknowledged the issue two years ago but did not incorporate the recommended reinforcement into manufacturing. As a result, even routine exposure to the forced air from automated car-wash dryers causes the roof to bend inward. I have had this inspected multiple times, and the root cause has been consistently identified as inadequate roof support. The problem has not been corrected at the design or production level, and dealerships are not taking further action. The roof denting raises concerns about structural rigidity, potential weakening over time, and whether the roof would perform correctly in rollover or impact scenarios. This is an ongoing defect affecting normal use of the vehicle, with no resolution provided by GM despite documented awareness since 2023.

On the day of purchase, while driving on a freeway, the vehicle would not accelerate. The RPM's went up, the engine revved, but the vehicle acted as if it was in neutral. These vehicles will not accelerate if they think the brake pedal is also being pressed. The brake was not being depressed. As I was pulling the vehicle to the side of the road, suddenly it allowed me to accelerate again, and I continued with no further issues. One week later, with fewer than 200 miles on the vehicle, upon starting the dashboard showed alerts to Service ESC, Service Brake Assist, Service Trailer Brake System. The ABS and Traction Control lights also came on. These are all systems designed to prevent loss of control, and all failed without warning. A dealer service center diagnosed this as a known problem with a faulty master cylinder, on several models built over a period of several months.

Cruise Control I was nearly in a severe accident because of the way Chevrolet Cruise control works when I was on the highway and traffic slowed down briefly and my vehicle continued to run at the set miles and didn't slow down when I was approaching the vehicle in front of me. When I purchased the vehicle (2025 Chev Colorado) I was not informed that 'Gap' detection does not work as it does in most other modern vehicles. This feature is only available in higher end vehicles in what they call Adapter Cruise Control. My pamphlet "Getting to know your 2025 Colorado explains how to use ACC with no mention it is an option only available on higher end vehicles. I consider it a safety hazard that Cruise Control in its normal setting does not use the Gap setting as most modern vehicles do making it a safety issue, especially when you have a 2nd vehicle that works this way automatically. It was only after 2 service visits that I was told that how it works and that even though it is an option, it is not something that Chevrolet can install in my vehicle. Making it even more confusing the 'GAP' setting is available on my steering wheel controls making the user think this option is actually available when, in fact it is not. I feel Chevrolet needs to fix this potential safety issue by making the Cruise control work in the same manner other manufactures have done for several years.

Started the vehicle and 4 dash lights were on. The ABS light, the forward collision system light, the BRAKE light, and the traction control light. The vehicle was taken to a dealership and we have been notified by the dealer that it is a Master Brake Cylinder failure. The part is on national backorder with no ETA. Luckily, it did not fail while driving, but could've been tragic. This vehicle is brand new and belongs to my 16 year old. This is a known issue on the Colorado, Traverse, and possibly other models. However, I have yet to find a recall or TSB. Brake cylinders are FAILING in brand new vehicles and GM needs to address it.