Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 32 of 193 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Electrical System. Review the 41 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Power Train. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine. Review the 38 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
7 crash reports3 fire reports4 injury reports
What owners actually said
193 reports
Mileage unknown · Nov 22, 2021
Equipment
The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment). The contact called a local dealer and was informed that the only resolution for the recall would be to remove the jack stand inside the vehicle. The contact was informed that the jack stand would not …
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The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment). The contact called a local dealer and was informed that the only resolution for the recall would be to remove the jack stand inside the vehicle. The contact was informed that the jack stand would not be replaced. The manufacturer was not made aware of the issue. The vehicle was not yet serviced under the recall. The contact had not experienced a failure. Parts distribution disconnect.
NHTSA ODI #11441358
1,574 miles · Nov 18, 2021
Electrical System
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact ha…
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The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, the vehicle made an abnormal popping sound before the power steering and brakes failed. Additionally, the brake pedal became extremely sensitive while gently being depressed causing the vehicle to abruptly stop. The contact had to restart the vehicle to correct the failure. The failure was intermittent. The vehicle was taken to the dealer however, the dealer could not duplicate the failure. The vehicle was taken to another dealer, Frontier Motors Incorporated (31406 US-18, Winner, SD 57580) on numerous occasions and diagnosed with electrical system failure. The dealer reprogrammed the power steering angle sensor and rear differential clutch sensor; however, the failure recurred. The vehicle was not repaired and remained at the dealer. The manufacturer was made aware of the failure. A case was being processed by the Better Business Bureau under the Lemon Law and was awaiting final repair notice from the dealer. The failure mileage was 1,574.
NHTSA ODI #11440926
Mileage unknown · Nov 3, 2021
Service Brakes
The brakes squeak and squeal at low vehicle speeds including when in reverse.
NHTSA ODI #11439265
Mileage unknown · Oct 4, 2021
Equipment
The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment) however, the part to the recall repair was unavailable. The contact took the vehicle to the local dealer and it was confirmed that the part was not available. The contact stated that the manufacturer h…
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The contact owns a 2021 Chevrolet Trailblazer. The contact received notification of NHTSA Campaign Number: 21V440000 (Equipment) however, the part to the recall repair was unavailable. The contact took the vehicle to the local dealer and it was confirmed that the part was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
NHTSA ODI #11435362
Mileage unknown · Oct 3, 2021
Structure
I was driving on the freeway and my panoramic moonroof literally exploded from the inside out. It sounded like a gunshot almost. Then the glass shattered. I am glad that the screen was closed otherwise all the glass would have gotten in my car.
NHTSA ODI #11435288
Mileage unknown · Sep 16, 2021
Service Brakes
The brakes squeal and squeak when in reverse and applying the brake when going forward at low speed. I have been told there is a GM service bulletin that says this is normal for the brakes to make this very loud noise. I have not seen this bulletin and have not been able to find the bulletin online. At any rate this is not norma…
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The brakes squeal and squeak when in reverse and applying the brake when going forward at low speed. I have been told there is a GM service bulletin that says this is normal for the brakes to make this very loud noise. I have not seen this bulletin and have not been able to find the bulletin online. At any rate this is not normal for a car with 7600 miles to have brakes that squeal all the time. I have taken this to two different dealers and get the same answer but I do not believe it is proper to make a customer deal with this when they spend close to 30k on a car and you will not fix it because it does not cause a safety issue. Bumper-to-bumper warranty coverage should mean just that.
NHTSA ODI #11433212
5,000 miles · Sep 10, 2021
Electrical SystemEngine
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure …
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The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at an undisclosed speed, the AUTO-STOP was not functioning properly. Additionally, the doors would not unlock on two separate occasions. Additionally, the keyless ignition button would not turn off the vehicle until the contact applied pressure while pressing on the button. The contact also stated that the tire pressure sensor was faulty. The check engine warning light and reduced power message was displayed on the instrument panel. The vehicle was taken to the dealer on two separate occasions and the dealer informed the contact that the AUTO-STOP function was unprogrammed due to the weather however, the dealer was unable to duplicate the failure. The dealer reprogrammed the AUTO-STOP software and tire pressure sensor however, the failure recurred. The manufacturer was made aware of the failure and the contact was awaiting a callback. The failure mileage was approximately 5,000.
Was in the middle of a 3 car collision. After about 5 min engine started smoking and a fire started. Fire slowly escalated and fully engulfed the entire car.
NHTSA ODI #11431843
Mileage unknown · Aug 18, 2021
Unknown Or Other
Cutter Chevrolet in Honolulu had a recall on my vehicle for a jack unable to support the vehicle. I had the appointment to address the recall. Their solution was to remove the jack without a replacement. Now I no longer have a jack. It will now cost me to have someone else to change a wheel that I can do myself. I have a spare t…
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Cutter Chevrolet in Honolulu had a recall on my vehicle for a jack unable to support the vehicle. I had the appointment to address the recall. Their solution was to remove the jack without a replacement. Now I no longer have a jack. It will now cost me to have someone else to change a wheel that I can do myself. I have a spare tire with no jack in my new vehicle
NHTSA ODI #11429624
Mileage unknown · Jul 31, 2021
Air BagsWheels
On June 10, 2021 I was driving home at a speed of approx 65 miles an hour from the grocery store on Interstate 255 when all my side airbags suddenly exploded. My 2021 Chevy Trailblazer RS was 3 months old and had 3500 miles on the car. After exiting the vehicle, I found the rear passenger tire was flat. Upon changing the tire,…
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On June 10, 2021 I was driving home at a speed of approx 65 miles an hour from the grocery store on Interstate 255 when all my side airbags suddenly exploded. My 2021 Chevy Trailblazer RS was 3 months old and had 3500 miles on the car. After exiting the vehicle, I found the rear passenger tire was flat. Upon changing the tire, we discovered that the wheel had split apart. There is no damage to the body or underneath the vehicle. There was no large potholes or debris anywhere in the area. Upon starting the investigation with GM regarding the incident, they reported that the air bags acted as they should and they would not take liability. When both myself and the service manager of the dealership questioned why the report had not one single mention of the tire/wheel which caused the deployment of the airbags in the entire investigative report, we were both told "the airbags acted as they should" and the decision was final. The service manager was in shock and has stated repeatedly that based on the facts gathered and condition of the tire/wheel, there was some sort of defect in the wheel which caused it to explode. There is absolutely no evidence to make him think that I hit anything or caused the incident. GM will not discuss the case any further and told me to turn it over to my insurance. The fact that they did not investigate the cause (the exploding of a wheel for no apparent reason) makes me believe they are trying to cover up a potential issue that could impact the safety of other 2021 Trailblazer owners. The air bag replacements are on backorder and are predicted to take months. I am currently without a vehicle.
General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.
Consequence & remedy
Consequence: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.
Remedy: Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A212335470.
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.
Consequence & remedy
Consequence: 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.
General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.
Consequence & remedy
Consequence: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.
Remedy: GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is A202304380.
Additional source detail variants (2)
Seats:critical Fasteners
General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.
Consequence: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.
Remedy: GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is A202304380.
Seats
General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed.
Consequence: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.
Remedy: GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is A202304380.
General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.
Remedy: GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070.
Additional source detail variants (2)
Equipment:other:labels
General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection and Rims."
Consequence: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.
Remedy: GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070.
Tires
General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection and Rims."
Consequence: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.
Remedy: GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2021 Chevrolet Trailblazer Problems, Complaints & Recalls | Skip That Year