2021 Chevrolet Trailblazer brakes problems

Related recalls

• Recall 20V588000Sep 24, 20203,677 vehicles
  SERVICE BRAKES

  General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.

  Risk: If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.

  Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.

What owners say

1. Filed Oct 3, 2026GABrakesDriver Assistance & Safety Tech

   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…

   NHTSA complaint #11768719 · source
2. Filed Jun 5, 2026CABrakesDriver Assistance & Safety TechElectrical System

   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…

   NHTSA complaint #11742380 · source
3. Filed Apr 29, 202675,000 miKYBrakesElectrical System

   The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 40 MPH, the vehicle stalled. During the failure, several unknown warning lights illuminated, and the vehicle was jump-started. The Auto START/STOP function was disabled for the vehicle to operate properly. The vehicle was inspected by an independent mechanic; however, the failure could not be duplicated. The contact replaced the battery, and the failure was almost resolved.…

   NHTSA complaint #11734601 · source
4. Filed Mar 24, 2026RIBrakesElectrical SystemEngine

   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…

   NHTSA complaint #11726811 · source
5. Filed Mar 9, 2026135,884 miTXBrakes

   The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 70 MPH, the brakes became inoperative. The message "Brake Failure - Speed Reduced to 53 MPH – Service Required" was displayed on the instrument panel. The vehicle was taken to a dealer; however, the dealer stated that the vehicle could not be diagnosed because diagnostic tests were available only by appointment. The dealer informed the contact that the computer software needed…

   NHTSA complaint #11722954 · source
6. Filed Feb 24, 2026OHBrakesOther / Unknown

   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.

   NHTSA complaint #11720155 · source
7. Filed Oct 27, 2025TXBrakesElectrical System

   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…

   NHTSA complaint #11695946 · source
8. Filed Sep 5, 2025MNBrakesElectrical SystemSteering

   While driving, a service warning came on that reads "Service Power Steering" - when that came on, the brakes ceased to work properly and required significant force, causing a big delay in braking. It is not safe to drive due to the limited braking. This mirrors the recall situation for other 2021 Trailblazer models with the interrupted brake sensor.

   NHTSA complaint #11685359 · source
9. Filed May 3, 2025GABrakes

   Getting error message for shift to park not found when vehicle is in park. Chevy already has a recall for this but my vin is not one showing it is affected. Vehicle is at the dealer now for diagnosis and repair.

   NHTSA complaint #11658663 · source
10. Filed Feb 19, 2025OHCrash2 injuredBrakesDriver Assistance & Safety Tech

    A loud popping noise heard through the radio when light pressure applied to brakes. Noise loud enough to scare the hell out of all the occupants in the car. Brakes squeaked when car was in reverse. Tried to slow down on wet pavement. Car started to veer to the right. Forward collision warning nor automatic emergency braking worked. Pushed brake all the way to the floor and the car did not slow. Rear ended another car. No airbags deployed. My passenger was okay. I got…

    NHTSA complaint #11643617 · source
11. Filed Dec 31, 2024MABrakesFuel, Hybrid & EV Propulsion

    I have brought my car into the dealership over the last few years at least 6 times for the same issues. Currently there are two codes coming up as permanent on my car which is for the Evaporative Emission System Flow and Brake Booster Hydraulics performance. I drive my child of three every day and the number of times my check engine light comes on and goes into reduced engine power is not okay nor safe.

    NHTSA complaint #11633315 · source
12. Filed Sep 19, 2024AZBrakesTransmission & Drivetrain

    What component or system failed or malfunctioned, and is it available for inspection upon request? - The shift lever/gear control malfunctions when trying to put the vehicle in park. The vehicle once the lever is in park on the dashboard it will say !Place vehicle in park. When it is in park you can't open the doors or turn off the vehicle. You can try to jiggle the shift lever but it doesn't move out of park. How was your safety or the safety of others put at risk? - Unable…

    NHTSA complaint #11615442 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology