2021 Chevrolet Trailblazer service brakes problems

“I am filing this complaint regarding a serious and potentially life-threatening braking malfunction involving my 2021 Chevrolet Trailblazer RS. While actively driving the vehicle, three separate warning messages suddenly appeared on the dashboard: Service Power Steering Service ESC Brake System Failure At approximately the same time, the brake pedal suddenly became extremely hard. I had to apply excessive physical force to the brake pedal in an attempt to slow and stop the vehicle. The vehicle did not respond as expected when braking. I nearly crashed because I could not stop the vehicle normally. This malfunction occurred unexpectedly while the vehicle was being driven. It was not an issue that occurred when starting the vehicle. The sudden loss of normal braking assistance created an immediate and extremely dangerous situation. A driver should never have to wonder whether their vehicle will be able to stop when the brake pedal is applied. 2. Previous Dealership Visit and GM Engineering Involvement I previously brought the vehicle to the dealership because of this same braking problem. GM engineers became involved and instructed the dealership to address a…”

“ABS brake system failed causing breaking to surge and not work correctly and not stop like it should resulting in having to have the ABS module and pump replaced at an extreme cost. With no clear cause and using the same parts this is likely to happen again. Had to be taken to the dealer because it required special software and bleeding procedure that a local shop wasn't able to do. The dealership stated that this should probably be covered soon in a recall that this was a known problem and they have had quite a few issues with this ABS pump assembly.”

“While driving on Thursday, June 4, 2026, the vehicle experienced a sudden and complete failure of the electronic braking/power brake assist system. Simultaneously, multiple safety warnings illuminated on the dashboard display, including a persistent service wrench icon, a traction control warning light, and a lane-keep assist indicator light. Due to the loss of brake assistance, the vehicle was unsafe to operate and had to be towed/driven directly to a licensed dealership for emergency diagnosis. The dealership technicians subsequently inspected the vehicle and reported that the entire electronic braking system had suffered a total failure and is completely non-functional. Despite multiple technical service bulletins and recalls issued for similar vehicle builds regarding electronic brake boost interruptions and mechanical brake vacuum pump failures, I am being forced to pay for these critical safety repairs out of pocket. A sudden loss of braking power poses an immediate crash hazard, and I am filing this report to urge the NHTSA to investigate why this manufacturing defect is not covered under an active safety recall for this specific vehicle configuration.”

“When stopped at a red light & the light turns green & I accelerate, the vehicle does not move. It makes a loud noise and jumps. This happens way too many times. There’s also an issue with the brakes, when you press on them, you can hear something grinding, which should not be happening because I bought the car brand new. Also the brakes have always been super squeaky, which is very frustrating because they should not be with a brand new car once again. The engine light goes on and off randomly and doesn’t say anything.”

“Shift to park. Vehicle will not shut off. Also trying to start vehicle having to repeatedly push brakes down hard and push to start before finally starting. I bought this vehicle with 0 miles this has been an on going on and off problem since around 20000 miles have been put on.”

“There is a faulty sensor on this car that does not allow the car to be properly parked and gives the error message "Shift to park" on the dashboard. You have to turn the car back on and mess with the shifter multiple times to get it to register that it is park. This usually takes about 10 attempts every time you need to park the car. There are other reports regarding this exact issue on this car that further validates that this issue is relevant and needs to be addressed through a recall.”