Chevrolet Trailblazer Complaints

418 consumer complaints on file.

#11742039June 4, 2026
UNKNOWN OR OTHER
When car is shifted to park it doesn't let the car turn off. There is a message to shift the car to park when it is in park
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740485May 27, 2026
UNKNOWN OR OTHER
After the car is parked and engine completely turned off, there is a 'Shift to Park' warning and it kept on blinking and wouldn't turn off. It drains the car battery.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11739793May 24, 2026
ELECTRICAL SYSTEM
For approximately a year, my vehicle sporadically gives a message when I shut it off staying it is not in park. It can take up to 5 minutes turning it back on, shifting through all gears, and turning it back off before it registers that it is in park.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738891May 19, 2026
UNKNOWN OR OTHER
I keep receiving a “shift to park,” message after putting the car in park and shutting it off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738889May 19, 2026
POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)
Shift to park error randomly pops up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738187May 15, 2026
UNKNOWN OR OTHER
I needed to have my muffler welded in November to pass inspection. I was told I would likely need the entire thing replaced in a year. I now hear another exhaust leak, and I’m preparing for a hefty car travel and have to deal with trying to get it fixed in 10 days time. This is ridiculous on a 5 year old car that I have only had two year. This needs to be a recall, insane to have to pay for a whole replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737558May 13, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2023 Chevrolet TrailBlazer. The contact stated while driving 70 MPH on the interstate , the vehicle independently went into engine power reduce mode. The contact mention she pulled off the interstate, turned the vehicle off for five to ten minutes then turned the vehicle back on and the vehicle began to work as intended. A dealer was contacted. The vehicle was taken to a dealer where it was diagnsonesd the turbo booster needed to be replaced. The vehicle was not repaired. The manufacturer was notified on the failure, and they informed her there were no recalls at this time. The approximate failure mileage was 103,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11736470May 8, 2026
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
Intermittently I will receive a dashboard message reading “shift to park” after I park the vehicle and do shift to park. This is a known issue with this vehicle across several years identified as “a known issue caused by a faulty switch in the shifter assembly failing to detect when the car is in Park”. GM has identified and found a solution to this problem by replacing the entire shifter assembly at the owners own cost. This malfunction has the potential to cause great harm. Potentially the vehicle could roll if the engine/system does not identify that it is in park. This could cause very expensive damages or even take a life. The vehicle also remains in accessory mode which drains the battery and can become even more costly for the owner at no fault of their own.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11736042May 6, 2026
POWER TRAIN
The contact owns a 2023 CHEVROLET Trailblazer. The contact stated that while parking the vehicle, the computer system failed to recognize that the vehicle had been shifted into the park position, causing a "Shift to Park" warning light to illuminate on the instrument cluster. Although the gear selector was physically in park, the contact was unable to fully shut down the vehicle and had to cycle the ignition on and off multiple times until the system eventually recognized the park position. The vehicle was driven to the dealer where it was diagnosed to be a transmission control assembly failure. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 61,097.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735900May 5, 2026
ELECTRICAL SYSTEM
Unknown cause but Timeline: -Delayed push start (5 -15second delay from electrical system starting) -Early battery failure (3 years old) attributed to operating voltage ranging between 12-13 -Camshaft replacement 4 months later the delayed engine turnover began again. All diagnostic testing shows no error
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735756May 5, 2026
LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST, ELECTRICAL SYSTEM
My shift to park was broken last September 9-25, and I took it to the dealers I bought it from (the month prior, in august) and they fixed it. I was never informed what they did to fix it. I didn't have any issues with it after that up until recently. I will put my car into park, press the engine button to turn it off, and then it displays the shift to park message and beeps. the light next to my gear shift will be on "P" and my screen also says my car is in park. I have to mess with the gear shifter until it recognizes that it's parked so I can actually leave my car. I have taken it to an auto shop local to me and they had it all day and couldn't figure out what caused it. I typically am stuck in my car for over 5 minutes because of this issue. My lane departure warning worked for about 2-3 months after I purchased the car. Out of nowhere it stopped working and when I press the button to turn it on, it says it's unavailable. I've tried cleaning the sensor, turning it on when I'm not accelerating/braking, and turning it on while in cruise control and it will not work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734601April 29, 2026
ELECTRICAL SYSTEM, SERVICE BRAKES, HYDRAULIC
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. Additionally, while depressing the brake pedal, the vehicle failed to stop as needed. The issue was not diagnosed or repaired. The contact stated that while starting the vehicle, the RPM was abnormally elevated, and the vehicle jerked abnormally while shifting gears. The manufacturer was not notified of the failure. The vehicle was not diagnosed or repaired. The approximate failure mileage was 75,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734518April 29, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Rear back up camera. One day it started to glitch when put in reverse. I placed the car in park, gave it a moment and put it in reverse again. This was repeated in the attempt to get the back up camera to work. Next- turned the vehicle off for a moment, restarted it, put in reverse and this did not help. Also, I attempted to check for update/update and reset the infotainment system. This did not help. The backup camera, after this incident has not worked since. I bought this car brand new. Also, just to note, the car shakes dramatically when increasing certain speed during winter, due to very little snow on the tires.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734472April 29, 2026
POWER TRAIN
I am reporting a serious safety issue with my 2021 Chevrolet Trailblazer related to transmission failure. The vehicle has approximately 83,000 miles. While driving, the vehicle experiences a sudden loss of power when attempting to accelerate. In some instances, the vehicle has stalled or shut off while I was actively driving, creating a dangerous situation, especially when merging into traffic or driving through intersections. The issue is intermittent but has become more frequent over time. The vehicle does not respond properly when the accelerator is pressed, and there is a noticeable delay or complete lack of power. At times, the vehicle will not move as expected, which poses a significant safety risk. Diagnostic codes associated with this issue include P2714 and P0700, which indicate a transmission-related malfunction. I have been advised that the vehicle requires a full transmission replacement. This failure occurred at relatively low mileage for a major powertrain component, and I am concerned this may indicate a broader defect. The stalling and loss of power create a hazardous driving condition that could result in an accident. I am submitting this complaint to report a potential safety defect and to request further investigation into this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733323April 23, 2026
UNKNOWN OR OTHER, ELECTRICAL SYSTEM, VISIBILITY/WIPER
Rear camera stoped working. I read 2022 to 2024 had recalls on internet. Ours is 2025. Been to dealer they ordered new camera under warranty. But there on back order. They said they would call us when it came in. That’s the story.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733143April 22, 2026
UNKNOWN OR OTHER
When I put my car in Park, my car fails to detect it is in Park, leading to a persistent error message that tells me “Shift to Park”, inability to turn off the engine, and battery drain. I’ve had the car since Oct. 2020 and this car has been doing this since at least Oct. 2021.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11733036April 22, 2026
POWER TRAIN, ENGINE
The contact owns a 2026 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle failed to properly shift into gear while the gear shift lever was in use. The check engine and another unknown warning light were illuminated. The vehicle was towed to a local dealer, where several undisclosed fault codes were cleared. The vehicle was towed back to the same local dealer, where it remained for further investigation. The contact was informed that the transmission might need to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 100.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731922April 17, 2026
ENGINE
2021 Chevrolet Trailblazer RS (123,000) - Coolant control Valve failure Cooling issues after 20-25 mins of driving. No Check engine lights initially just temperature gauge climbing. After 3 day of trying to drive to and from work. "Engine reduced" and P3075 code. Had it towed to dealership, in which they replaced the water pump. This DID NOT fix the issue. The next two drives (from work, and to work), I had to pull off the road several times to get the car cooled down, and run heater on full blast to drop temperature. Pulling off the road in heavy interstate traffic consistently because of the Coolant Control Valve (25207464 GM). Not to mention me, looking at the temp gauge most of the way to work, versus eyes on the road. The old thermostats would at least give you a temperature code, and not an Engine Coolant Flow Too Low error which leads to water pump being replaced erroneously. Going to plastic control valve next to a hot engine, sounds as good as plastic car jacks for this car. Oh, wait, that happened to me as well, and they recalled it after it broke on me at 2 am in the morning.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731715April 16, 2026
ENGINE
My vehicle started overheating out of no where towed it to the shop, it’s been there for 2 weeks they’re actively waiting for a manufacturer engineer to tell them what to do because they can’t figure out how to fix it. On top of that there have been a lot of overheating issues cause by different parts on the vehicle. There was another trailblazer in the at the same time as mine that was also overheating! A 2025 vehicle should not be having issues at this point gmc should just take all the trailblazers off the market! Also they need to change their manufacturing warranty on rentals because not one person should not have to pay out of pocket for a rental when it’s the manufacturers fault!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11731702April 16, 2026
ENGINE
While driving down the interstate my 2021 Chevy Trailblazer suddenly flashed "Battery Saver Mode" on the dash and shut off completely. I was able to coast to the side of the road and call for help. This was a MAJOR safety issue as my 4 year old son was riding with me and we could've caused or gotten into a serious accident. There were no previous warnings and no Check Engine Light came on prior to it shutting off--I had been having no issues. The car will not turn on and when attempting to, it makes a screeching noise. I had to get it towed to a local service center who stated my car has "catastrophic engine failure". They advised the issue could be either "timing chain or a dropped valve"--unable to confirm until they take the engine apart completely. They denied issues with the battery or starter and said the engine was completely blown. There was less than 120k miles on it and i kept up with maintenance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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