IllustrationShift to Park comes on after vehicle is shifted into park and the vehicle is turned off. You have to hit the gear shift or jiggle it to register it is in park or start the vehicle and shift to neutral and back to park and turn it off a few times to get it to register it is in park.
2021 Chevrolet Trailblazer
Owner reports · Recalls · Investigations
More warning signs than most Trailblazer years
Owner complaints for the 2021 Chevrolet Trailblazer are substantially higher than the model-year median of 87.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Trailblazer years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
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 reportsTurbo failure resulted in loss of engine power. I was driving down the road and the engine light came on and I got a notification that the engine was in reduced power mode. The vehicle became very sluggish and lost speed. While I was fortunate that I was not on a busy road, had the incident happened on the highway it could ha…
Read full complaint
Turbo failure resulted in loss of engine power. I was driving down the road and the engine light came on and I got a notification that the engine was in reduced power mode. The vehicle became very sluggish and lost speed. While I was fortunate that I was not on a busy road, had the incident happened on the highway it could have been dangerous given my loss of speed. What's of greater concern, this appears to be a common problem on the Trailblazer message boards. The dealer confirmed it was the turbo and stated that the part was on back order. This indicates the problem is occurring very frequently. The vehicle only has 33k miles on it.
Coolant control valve causes car to overheat leaving car and passengers stranded on the side of the road. This is dangerous as it increases the risk accidents. The part is on back order since most of the vehicles with the original part are defective. Something needs to be done to correct this problem!
The contact owns a 2021 Chevrolet Trailblazer. The contact stated after parking the vehicle and pressing the Push to Start button to turn off the vehicle, an alarm sounded and the message "Shift to Park" was displayed. The contact shifted out of park(P) and slammed the gear shifter into park(P). The contact was then able to park…
Read full complaint
The contact owns a 2021 Chevrolet Trailblazer. The contact stated after parking the vehicle and pressing the Push to Start button to turn off the vehicle, an alarm sounded and the message "Shift to Park" was displayed. The contact shifted out of park(P) and slammed the gear shifter into park(P). The contact was then able to park and to turn off the vehicle. The contact stated that the failure recurred intermittently while parking on a level surface. The contact stated that on several occasions the failure required turning off and restarting the vehicle to successfully park the vehicle. Additionally, the contact stated that the failure occurred while attempting to park on an incline. The contact stated that the vehicle was unable to be parked on an incline after several attempts. The dealer was notified of the failure and an appointment was scheduled for diagnostic testing. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 33,000.
Malfunctioning door locks cause safety issues for drivers and passengers. If you do an internet search, you can find thousands of questions on this specific issue for Chevrolet door electronics. They are doing nothing to correct this isse.
Turbo has went out twice or the piece that makes it go and has been replaced under warranty once and is going in the shop again
The Turbo is bad in the car at 90,000 miles. It is a common issue among these, lots of other people have the same issue with the “engine power is reduced” message popping up, per the 2021 Chevrolet TrailBlazer facebook group. There needs to be a recall so they can be fixed. It has happened on mine for the past few months and the…
Read full complaint
The Turbo is bad in the car at 90,000 miles. It is a common issue among these, lots of other people have the same issue with the “engine power is reduced” message popping up, per the 2021 Chevrolet TrailBlazer facebook group. There needs to be a recall so they can be fixed. It has happened on mine for the past few months and the dealer said the turbo is bad. The purge pump has already been replaced.
On 7/2023, my timing chain broke causing shards of metal to get in the engine. Engine replaced with new engine. When I received car back, started having issues with transmission. Now transmission needs replacing.
Shift to Park warning message continues to appear when already in park and trying to turn the vehicle off. Unable to exit and leave vehicle until you continually try jamming the gear into park over and over to get it to register.
CEL came on at 77,000 miles P1467 Is this covered?
Official recalls
421V440000 · Equipment:mechanical:accessory Scissor/screw/bottle Jack/lift:stand
Jun 10, 2021
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.
20V588000 · Service Brakes
Sep 24, 2020
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.
20V537000 · Seats; Seats:critical Fasteners
Sep 3, 2020
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.
20V295000 · Equipment:other:labels; Tires
May 21, 2020
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
0No exact-year investigations in this snapshot.