Chevrolet Trailblazer Complaints

418 consumer complaints on file.

#11723125March 9, 2026
ELECTRICAL SYSTEM
My 2024 Chevy Trailblazer Fully Shutdown the engine and everything at a Stoplight With the Start/stop on leaving me to put pack into park and restart vehicle!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722954March 9, 2026
SERVICE BRAKES, HYDRAULIC
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 to be reset to drive the vehicle back to the residence. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and provided the contact information about a recall; however, the VIN was not under recall. The failure mileage was approximately 135,884.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722937March 9, 2026
ELECTRICAL SYSTEM
Rear camera stopped working
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722752March 7, 2026
ENGINE
I was driving an hour away from home and suddenly my muffler and exhaust started dragging— 49,000 miles, 5 years old AND just passed inspection A WEEK AGO. Luckily, it didn’t become completely unattached because that could have caused an accident as there were cars behind me. Complete safety hazard
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721070February 27, 2026
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720307February 24, 2026
ENGINE, UNKNOWN OR OTHER
This vehicle was sold as new when this vehicle had a defective Turbo Underboost issue from a ECM Issue previously prior to the 2022 Trailblazer being sold to us. This vehicle has a shift to park issue which sticks when you try to Park the vehicle. Next This vehicle has had 4 prior incidents of attempted repair of this Turbo Underboost and a failure to pass emissions which lead to the engine and transmission failure of this vehicle. I have waited since July 6, 2025 of this vehicle being in the shop no rental no loaner. Now no replacement vehicle. For more than nine months and a General Motors open claim since 07/06/2025! GM is hiding the truth about Recalls and Road Hazards not listed to vehicle like this 2021 Trailblazer and other GM vehicles that GM refuses to replace and cannot repair or cover the additional financial hardship placed on unwitting consumer as they sell defective vehicle wholesale or as new vehicles through Chevrolet Dealership across this goble. We must STOP this from happening. GM is not even honoring the Government Guidelines forcing victims to hire counsel to buy time and prevent massive Recalls like ours.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720155February 24, 2026
SERVICE BRAKES, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719239February 19, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
My car along with multiple other cars like mine are having issues with the back up camera not working. I have to take it into a Chevrolet dealer to get it replaced. It is a huge safety concern and a recall needs to be issued.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718076February 15, 2026
UNKNOWN OR OTHER
The nut on the axle on the passenger side of the vehicle came completely off. Not sure how long it was off as it was “smooth” and full of dirt. From what I was told the wheel could fall off. I travel on an interstate at 80 miles an hour daily. I bought this car to transport elderly mother to appointments. I am not feeling confident in this vehicle. I would trade it if I was not upside down in it. The dealership has been great.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717728February 13, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Screen in car goes black.no radio,no noise,no back up camera-Apple car play won’t hook up anymore-I see others models around mine having exactly the same issues I am experiencing-I have reset radio/screen multiple times,it works anywhere from a few mins to hours then it blacks out again and there is nothing on screen.i have replaced the battery,key fine battery’s,and fuse.and I am still experiencing this issues.i have made an appointment at a Chevy dealer to have it diagnosed March 2,2026.that is $169.00 out of my pocket.again I am seeing plenty of other checks around my make and model having the same issues being recalled. My incident started about January 30,2026.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717422February 11, 2026
SERVICE BRAKES
Event happened on January 19th 2026. I’ve had my brand new car for 10 days and on the morning of the 10th day I started it to see multiple warnings. The car was in park and had not yet moved that day and a “Service Stabilitrak” came up. Once I started moving 2 more alerts came up “Break system failure, 62MPH top speed” and “Service power steering”. I brought it to the dealer and they diagnosed it with a Master Break Cylinder failure. The car has 120 miles on it. And due to the part being on back order I’ve been without that new car for over 3 weeks now.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716389February 7, 2026
POWER TRAIN, SEAT BELTS, FORWARD COLLISION AVOIDANCE: WARNINGS
My family and I was I involved in a hit and run accident. My minor child is still suffering from shoulder/rotator cuff injuries. Hewas in the process to start conditioning for football. The seatbelt on the day of the accident did not lock. GM sent a criminal investigator not a trained engineer for the vehicle. The seatbelts needs to be inspected. The motor/transmission is making a ticking sound.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715776February 5, 2026
ENGINE
Had p1098 code come up on car at 67000 issue coolant control valve assembly went bad. This a commons issue with trailblazers and other cars similar to it. Bad design cause extremely expensive repair for this component.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715690February 4, 2026
ELECTRICAL SYSTEM, SERVICE BRAKES, STEERING
The incident involved a 2025 Chevrolet Trailblazer, purchased new in late February 2025. The failure appears related to the vehicle’s electrical/charging system and associated control modules, resulting in a sudden loss of critical safety systems. The vehicle was towed by GM Roadside Assistance and is currently at an authorized Chevrolet dealership, where it is available for inspection upon request. While driving in Cambria, New York, the dashboard illuminated with multiple warning indicators and the vehicle experienced a complete loss of power steering and braking. The brake pedal traveled fully to the floor with no resistance and no braking effect. Steering effort increased dramatically. The driver was only able to avoid a crash due to favorable road and traffic conditions and was able to coast to a stop and pull off the roadway. This failure posed an immediate and serious risk of injury or death to the driver and others. The problem had occurred previously in the form of repeated warning messages. Beginning within the first week of ownership, the vehicle displayed “Service the Charge System Vehicle May Stall” warnings and since then has appeared hundreds of times. The vehicle was previously towed to an authorized Chevrolet dealership, where we were informed that General Motors identified the issue as a known software-related problem and advised that the vehicle could continue to be driven while awaiting a future update. The catastrophic failure occurred after this guidance. The vehicle has been inspected by an authorized Chevrolet dealership both prior to and following this incident, and General Motors has been involved through dealership communication. No police or insurance inspection has occurred, as no collision resulted. Based on the repeated warnings, dealer statements, and nature of the failure, the best assessment is an electrical or software-related malfunction, though the precise root cause remains UNKNOWN and requires investigation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715160February 2, 2026
BACK OVER PREVENTION: WARNINGS, UNKNOWN OR OTHER
Shift to park message coming on, not allowing vehicle shutoff. No inspection yet, in looking up issue, was prompted to report.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711444January 16, 2026
ENGINE
My 2024 trailblazer lt's engine light came on about a month ago. I took it to a local dealership and they said it was caused by CCND. Diagnosed code P0128 in pass/fail status. They test drove it to get light to come on and it was unable to duplicate it. They cleared the codes. A month later it came back on. I took it to my dealership and they said they have to take the entire front end off to replace the engine coolant bypass valve. They said that the electronic component was going bad. This car isn't even 2 yrs old. This should not be happening.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710699January 13, 2026
ENGINE
Purge pump failure at 33442 miles, should be included in customer satisfaction program #N242484740. Dealership denied it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710386January 12, 2026
ELECTRICAL SYSTEM:IGNITION
The contact owns a 2023 Chevrolet Trailblazer. The contact stated that the ignition switch was locked and failed to release the key. The vehicle was taken to the dealer, where the cause of the failure could not be determined; however, the failure persisted. The vehicle was taken back to the dealer, where it was determined that the ignition switch had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, and a case was filed. The failure mileage was approximately 49,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709501January 7, 2026
EXTERIOR LIGHTING
Unit used as a rental from Avis. Night time driving will cause on-coming traffic to flash high beams while my lights are in low beam mode. This is a daily problem with a multitude of on-coming drivers as the LED headlights are perceived to be extra bright / blinding.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708955January 5, 2026
POWER TRAIN, ENGINE, FUEL/PROPULSION SYSTEM
Vehicle experiences intermittent loss of acceleration at highway speeds. While driving at highway speed or going uphill, up ramp, down hill, down ramp the engine loses power and enters reduce power mode, making it difficult or impossible to maintain speed or safely merge with traffic. The issue is unpredictable and has occurred despite prior repair attempts. Vehicle is covered under a GM special turbo warranty for a known defect. Warranty came out Oct 2022, Due to the loss of power the vehicle is unsafe to operate and is currently at the dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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