2024 Chevrolet Trailblazer Powertrain (other) Problems

When accelerating forward, the front wheel is almost locked up, and I was violently thrown forward into the seat belt and steering wheel. The transmission seemed like it jammed and the car was bucking. there is a known GM technical service bulletin on this, but no recall. The car was towed to the dealer and not drivable. I’m glad this did not happen on the highway or with other cars around or it would have caused an accident and injury.

NHTSA ID

11771770

Incident

Oct 16, 2026

The 2024 Trailblazer developed a problem going into reverse at less than 17500 miles in December of 2025 when my daughter came home for Christmas. It would slam into reverse or freeze and then shift harshly. The selling dealer replaced the valve body in the transmission while it was in for normal service, the valve body was on order for 30 days in January. After I delivered the car back to my daughter on January 26, 2026 which was 4 hours away in Northern Virginia the transmission continued to freeze and slam into reverse. The selling dealer advised not to drive it back to Virginia Beach, VA. The car was then dropped off at an Arlington, VA dealer and was there for 9 days. The servicing dealer said they could not duplicate the situation and returned the car after 9 days. My daughter stated that the transmission has continued to act up in reverse with freezing and slaming while trying to reverse in real world settings. The Trailblazer was dropped off for a 3rd time on Saturday, February 21st and since then we have not heard a word from the dealer. I called Chevrolet Customer Service and they assigned a case number to the problem with the transmission. The case number is 89420437 and Sarah at Chevrolet said she would be in contact with my daughter by Sunday, March 1st.

NHTSA ID

11721070

Incident

Dec 22, 2025

When shifting from park to drive after the engine start none of the gears on the shifter engage. All positions are in neutral except for park. When shifting from park to any gear the engine revs when the throttle is pressed but the vehicle will immediately roll whichever way the ground is inclined. The power brakes won't engage thus forcing the driver to put their entire weight on the brake pedal to stop the car. A fix for this issue is described in General Motors Service update N2424466290 which identifies solution as replacement of the clutch piston housing. The Dealer will not fix the problem because my VIN # was not on their list of vehicles to fix. This is a safety issue because it happens randomly and surprises the Driver when the car suddenly starts coasting in whatever direction the ground is sloping. In my case the car suddenly rolled into a lane of traffic backwards in a Costco parking lot. Fortunately no cars were coming as I struggled to apply enough force to the brake pedal to stop the car. Another time the car decided to back out of the garage before I could react with either the brake pedal or the e-brake.(The electric emergency brake would not work during this incident). Please expand the manufactures known solution to all vehicles with this issue regardless of VIN number. Thank You- [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11674317

Incident

Jun 30, 2025

Almost every time I shift from park to drive and take my foot off the brake my car jolts forward a couple feet/inches to take off by itself in a manner that it should not. This has been going on since I got the car brand new and have had it just over a little over a year. I try to be as careful as I can with it and mentioned it to the Chevrolet dealership that does all my maintenance on my car. They are not sure what is causing the issue, but on 05/24/2025 I was attempting to get ready to get gas and needed to pull up slightly a little bit more and when I shifted to drive my car jolted forward and hit another vehicle. No damage was done to the other vehicle or mine, and the gentleman was nice and said it caused no damage for either of us but my car cannot keep doing this. Sometime is not right with it to be constantly jolting forward as soon as I shift to drive and take my foot off the break peddle to go. This could have been a lot worse had a human been in front of me and I do not want that to ever happen.

NHTSA ID

11662986

Incident

May 24, 2025

When driving my steering wheel goes to the left and it’s uncontrollable, I have to yank it to the right and hold it there to keep my vehicle straight it’s unsafe and does it randomly. It started around the 22 of January, 2025 and has persisted in the days following

NHTSA ID

11638422

Incident

Jan 22, 2025

The contact owns a 2024 Chevrolet Trailblazer. The contact stated while driving at an undisclosed speed, the vehicle failed to accelerate as intended. In addition, the contact stated that when the parking brake was released, the vehicle jerked. The contact stated when the accelerator pedal was depressed, the vehicle jerked. The contact stated that whenever the brake pedal was depressed, the vehicle failed to stop as intended. The vehicle was not diagnosed or repaired. The vehicle was scheduled for a diagnostic test within several days. In addition, the contact stated that the engine was recently replaced due to an oil leak. The vehicle had been serviced by the dealer several times due to the persistent failures. The manufacturer was not made aware of the failure. The failure mileage was approximately 10,000.

NHTSA ID

11629011

Incident

Sep 5, 2024

Mileage

10,000 mi

My daughter was stopped at a stoplight and the auto-stop engaged. The light turned green and she began to accelerate when all of the error lights on the dash lit up, then the dash info system and infotainment system went out followed by the engine turning off and not restarting. While all of this happened, the vehicle behind me struck my daughter’s car. Luckily it was at a low rate of speed and no one was injured. I took the car to the dealer and after nearly a week of testing they found nothing wrong and found no error codes in the system. They ere not able to replicate the problem. However, once we got the vehicle back a similar instance happed again, except just the dash info system and infotainment system went out and the car was still drivable. Once restarted the electronics came back on as normal. It has not happened again at this point. Had the first incident happened at a higher rate of speed a severe injury or fatality could have occurred.

NHTSA ID

11621360

Incident

Oct 9, 2024

See Prior Report 11603493 on 7/19/2024. [XXX] Engine. light on -Stabiltrak Stability - Control System Requires your attention NOW. Cernohous Chevrolet "repaired". Then [XXX] Engine light on again. Cernohous Chevrolet" repaired." [XXX] Engine light on for the 3rd time. They have had my 2024 Trailblazer since [XXX]. It might be a wiring issue or switch needs replaced per Ron Murphy and Jack. I am concerned this vehicle purchased new - cash- is a lemon. Other than yes the Engine light is on - no one can tell me the meaning and correct it. How serious - Dangerous to drive ??? Cernohous Chevrolet Prescott WI INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11616298

Incident

Sep 16, 2024