Chevrolet Trailblazer Complaints (2021)

198 consumer complaints on file.

#11657328April 28, 2025
STRUCTURE:BODY, UNKNOWN OR OTHER
I could turn off the engine after driving, but the key stays in the position between the engine being on and the car being off (for example when you can listen to music but your car isn’t running). The battery light came on after the issue started and so the car service place charged us to replace the battery, because they had to turn on and of the car a lot and the car had to continue to run. I took it to a car service place and they ran tests and called Chevy test support to run diagnosis tests. They can’t figure it out. They think it might be the body control module. Not sure what that is. The car only has 31,000 miles on it and this is a safety issue because what if this happens and the steering wheel locks or it becomes a rolling hazard. This would affect the driver and others. There were no lights or errors indicating a problem before this happened.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657316April 28, 2025
ENGINE
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while the vehicle was parked, the vehicle was turned off however, the blower fan independently activated. No warning light was illuminated. The contact's husband had just parked the vehicle upon arriving at the place of employment. The contact's husband is a certified mechanic. The vehicle was diagnosed with coolant intrusion and a misfire in the engine. The contact was informed that the spark plugs needed to be replaced; however, the spark plugs had to be ordered. The vehicle was not repaired. The vehicle was driven to the residence. The contact's husband parked the vehicle and turned the vehicle off. The vehicle failed to start as intended and was towed to the dealer to be diagnosed and the dealer determined that there was a crack in the head gasket. The contact was informed that the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure and a case was filed. The failure mileage was approximately 128,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657251April 28, 2025
POWER TRAIN
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while attempting to park the vehicle, the contact noticed that the gear shifter was inoperable, and the vehicle would not shift into gear properly. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the gear shifter had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 40,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656877April 25, 2025
VEHICLE SPEED CONTROL, UNKNOWN OR OTHER
Check engine light is on. Took to O'Reilly and had them put their tester on it to get the codes. Codes show P0700 and P1467. My cruise control and auto start will not work. My mechanic said this is an issue that should be fixed free of charge but no recalls show for my vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656803April 25, 2025
Insert, Padding
Model # CC398GYU, purchased in April of 2024 needs to be included in the foam head rest recall because the foam is accessible by my toddler. The foam presents a choking hazard. It is not secure and the foam is exposed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652696April 3, 2025
ENGINE, ELECTRICAL SYSTEM
My vehicle keeps flashing: "Shift to park" when I am in park and then my car is unable to shut off the battery even though I'm in park and our of the vehicle
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652476April 3, 2025
POWER TRAIN
The contact owns a 2021 Chevrolet Trailblazer. The contact stated while parking the vehicle, the gear shifter was shifted into park, however the shift to park warning light illuminated. In addition, the vehicle failed to turn off. The contact made several attempts to shift to park, and the gear shifter failed to function as intended. The contact stated that after several attempts, the shift to park warning light turned off and the contact was able to park and turn off the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure. The vehicle was scheduled for a diagnostic testing within the next several days. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 31,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649945March 23, 2025
ENGINE, FUEL/PROPULSION SYSTEM
On [XXX] while driving on the highway my check engine light came on. The car turned off while going 60MPH on the 18 mile stretch towards Miami from Key west and luckily there were no cars around me. I checked for the code and it was P1467 for the Evap Purge Pump. I took it to a dealership in Miami and they told me it would be fine to drive that the part needed to be replaced. I drove back to key west and bought the replacement part. That same part did not work. I checked to see if the part was receiving voltage and it was. So i will continue with going to the dealership. My wife and son have developed a cough from having to constantly smell the fumes due to their existing asthma. I will never buy another chevy again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645476February 28, 2025
POWER TRAIN, VEHICLE SPEED CONTROL, UNKNOWN OR OTHER
Engine power reduced came on after I was driving from a patient’s home. My car started driving very rough. I had to pull over because I was in danger of being hit from behind. I took my car to a mechanic and was diagnosed with the code DTC P2714. I looked online and there are a lot of people having this issue and being put in dangerous situations when we drive. Chevy knows about the issue and has not issued any recalls. Unfortunately for me my vehicle is past the limited warranty so now I have to save up money to get my transmission serviced. I’m never buying American again. I could’ve been really hurt when my engine cut off.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644597February 24, 2025
FUEL/PROPULSION SYSTEM
On 2/21/25 when I turn on vehicle the engine light came on. I checked for the code and it was P1467 for the Evap Purge Pump. I checked for the gas pump cover and didn't see anything damaged and closed it tight but engine light still on. I feel the gas or engine smell is also coming through the inside of car when fan is turned on and not safe health wise.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643617February 19, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
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 diagnosed with a concussion. Do not know if the occupants in the other car were injured.
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11640587February 4, 2025
ENGINE
On numerous occasions (typically when needing to accelerate into the flow of traffic), the Reduced Engine Power message and engine light came on, the car rapidly decelerated to 35 mph, and would not accelerate rapidly. Turbocharger, waste gate actuator, and other parts need replaced and reprogrammed, but issue persists. On one occasion, power was reduced and car was stuck "revving" at 25 mph. I have had to swerve off the road to avoid a crash of being rear-ended. Issue started around 60,000 but has happened at least 5 separate times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637782January 22, 2025
FUEL/PROPULSION SYSTEM, ENGINE
IN January my fuel gage stopped working , unable to know how much gas I had. The fuel pump and floater needed to be replaced If fuel was not getting to the engine the vehicle would stop working causing a possible accident with other drivers . I did not use this vehicle for many days until a mechanic cleared for useage . It cost me $320.00 of my own money to fix this for safety concerns. As of today 1/22/25 I has been fixed by A-Plus in North Fort Myers.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636360January 16, 2025
UNKNOWN OR OTHER, STRUCTURE:BODY
Found standing water in spare tire well. Back seat constantly wet, growing mold. The whole back area is moldy, mold under driver seat. My back passenger door seal has mold and water. Seat belts in back, MOLD. I had to wear a mask just to drive to the store. The mold turning black the day I took it to a shop for a water test. It's been two days and I still haven't heard anything about the water test.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633315December 31, 2024
SERVICE BRAKES, FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632626December 27, 2024
ELECTRICAL SYSTEM
I have had this vehicle at the garage for the 4th time in 2 months for the same issues. It would not start. the fuse box keeps blowing. The starter was replaced and the Alternator was replaced and the fuse box 3 times so far. It is in the auto repair shop now for the same issues. the mechanic has done an inspection and diagnostics and cant find what is wrong. There were no warning lights to warn me of anything. I have spent 4500+ so far in repairs and more to come.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11628521December 3, 2024
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
2021 Chevy Trailblazer When I go to park my car, there is a constant error of 'Shift to Park'. The car is already in park. I must wiggle the shifting knob, restart my car, or drive around before my car will turn off and recognize that it is in park. My safety is compromised each time I get in the car. If the car cannot recognize it is in park, what happens when it can't recognize it is in drive as I am on the road? Or reverse? Or any gear? My safety is also affected because my car does not realize it is in park, and at times I cannot exit my car. I am highly concerned that the car does not truly know which gear it is in and it compromises not only my safety, but the safety of my family/other passengers, and other drivers on the road. The problem is a known problem and there is an active fix bulletin for the problem. GM cannot get the part in stock - it has been 5 weeks. It affects not only my year, make, and model, but many others too. GM continues to sell the cars with this known safety defect. This defect has been confirmed by the dealership, and GM has sent out a known fix for the issue (TSB PIT5616A). There is also a class action lawsuit for this specific issue with GM. GM's solution to me is to trade in my car for a newer model rather than waiting for the part. In addition, many cars of my year, make, and model require a whole new transmission, but GM will only replace the shifter harness to start with, if and when they receive the part. I was told that the part could take up to six months to receive. For an issue that has been happening since at least 2019, this is unacceptable. The only warning that I receive is when I am trying to shut off my car and it will not shut off due to this error. This has been happening to my car for 2 months, but there seems to be a history of this defect since at least 2019.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627856November 28, 2024
ELECTRICAL SYSTEM
While driving the car will cut off and on real quick. The headlights will flash on their own. Security systems cuts off and the brakes function messes up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11627293November 25, 2024
POWER TRAIN
This vehicle has approximately 35,000 miles of driving time on the odometer. This car will not recognize that the shift lever has been place into the Park position. Doors will not lock when the car is turned off. If trying to seek refuge from an assailant, the car will only alarm but will not lock the doors for safety. Also, while storing items in the vehicle while at a metropolitan hospital (where I work) or a metropolitan grocery/fuel station, the vehicle will only alarm but will not lock under any circumstance. The car is responding as if the car is still in a movement gear position and will not recognize the shift position of Park. I have heard of many similar documented cases regarding this particular shift issue in relation to the 2021 Chevrolet Trail Blazer yet there has been no related recall related to this ever more prevalent repair need. some reports (not ours...) report the automobile transmission converting to park while in movement and while in a selected movement shift position. I do not want this to happen to me. My car (VIN # [XXX] ) is at the dealership for repair. The dealership informs us that the needed part(s) are currently under manufacture at a supplier and that there is no estimated date for the part(s) arrival or date to complete this repair. The car cannot be driven safely in a metropolitan area because in cannot be locked with the ignition off and the car just continues to alarm if walked away from. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11626823November 22, 2024
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
When I place my car in park, a "shift to park" message appears on the dashboard. I am unable to fully turn my car off and the car will ding at me. I have tried driving around the parking lot, pushing the shifter from side to side and into another gear then park again, going forward and backward, but the problem still exists. It started to occur more frequently, until it occurred every time I drove the car. I'm not sure if the car is actually in park, so when I finally get it to turn off, I place the emergency brake on. I can not physically turn the car off when this message appears on the dashboard. I took the vehicle to the service center of the dealer on 11/12/2024. I was told this has been a big problem with GM cars and they have had many cars coming in with the same problem. Currently the part is on backorder, and there is not an ETA as to when it will be available due to high demand for this part.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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