2021 Chevrolet Trailblazer Problems, Complaints & Recalls
- Compared with other Trailblazer years
- Far more complaints than other years 7th of 18 for complaints
- Safety recalls
- 4 recalls: check your VIN
- NHTSA crash rating
- 4–5 out of 5 stars (varies by version)
Owners have filed 195 complaints with NHTSA about the 2021 Chevrolet Trailblazer. That ranks 7th out of 18 Trailblazer model years for complaints. The most reported problem area is unknown or other (54 complaints, 28%), typically at around 2,000 miles. Complaints mention 7 crashes, 3 fires, 5 injuries. There are 4 safety recalls covering this model year.
- 195owner complaints
- 4safety recalls
- 0NHTSA investigations
- 7complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Chevrolet Trailblazer problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Unknown or Other | 54 | 28% | 2,000 | — | — |
| Electrical System | 41 | 21% | 12,500 | — | — |
| Power Train | 41 | 21% | 32,000 | — | — |
| Engine | 38 | 19% | 48,482 | — | — |
| Service Brakes | 30 | 15% | 3,746 | — | — |
| Fuel/propulsion System | 17 | 9% | — | — | — |
| Forward Collision Avoidance | 11 | 6% | 7,300 | — | — |
| Structure | 8 | 4% | 150 | — | — |
| Steering | 6 | 3% | 160 | — | — |
| Vehicle Speed Control | 5 | 3% | 6,000 | — | — |
| Visibility/wiper | 4 | 2% | 50 | — | — |
| Air Bags | 3 | 2% | — | — | — |
| Back Over Prevention | 3 | 2% | 32,000 | — | — |
| Wheels | 3 | 2% | — | — | — |
| Engine and Engine Cooling | 2 | 1% | 69,425 | — | — |
| Equipment | 2 | 1% | — | — | — |
| Lane Departure | 2 | 1% | — | — | — |
| Service Brakes, Hydraulic | 2 | 1% | 105,442 | — | — |
| Tires | 2 | 1% | 2,100 | — | — |
| Child Seat | 1 | 1% | — | — | — |
| Exterior Lighting | 1 | 1% | 50 | — | — |
| Fuel System, Gasoline | 1 | 1% | 21,000 | — | — |
| Insert, Padding | 1 | 1% | — | — | — |
| Suspension | 1 | 1% | — | — | — |
| Tether, Lower Anchor (on Car Seat or Vehicle) | 1 | 1% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Chevrolet Trailblazer recalls (4)
Tap a recall to see the problem, the risk and the fix.
Equipment:mechanical:accessory scissor/screw/bottle jack/lift:stand
Problem: 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.
Risk: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.
Fix: 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.
Service brakes
Problem: 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.
Risk: 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.
Fix: 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.
Seats:critical fasteners
Problem: 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.
Risk: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.
Fix: 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.
Equipment:other:labels; tires
Problem: 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."
Risk: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.
Fix: 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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
My 2021 Trailblazer does not shift into drive properly from park or reverse. When shifting into drive, the engine revs but does not move forward. In some cases, the vehicle also shakes and jolts for several seconds. It is also slow to shift into higher gears at high speeds on the freeway. In cases…
ABS brake system failed causing breaking to surge and not work correctly and not stop like it should resulting in having to have the ABS module and pump replaced at an extreme cost. With no clear cause and using the same parts this is likely to happen again. Had to be taken to the dealer because it…
2021 Chevy Trailblazer has a shift to park sensor issue. Car is in park and the sensor does not recognize that it is in park and displays a safety message to place car in park and continues to beep. Takes numerous attempts of taking car out of park and back into park to get it to recognize that the…
Dear Chevy, I am reaching out to you again because I am desperately requesting immediate assistance with my vehicle, which has now become an extremely serious and dangerous safety concern. On Friday, [XXX], I had my vehicle towed to the dealership because of the ongoing mechanical issues I have…
Original Owner of 2021 Chevy Trailblazer LT. Purchased new in April 2021. Vehicle has a history of major powertrain issues, starting with Check Engine light during its first year of ownership, culminating in a complete turbocharger replacement in December 2025. This only as a result of my research…
Other Chevrolet Trailblazer years
← 2014 Trailblazer · 2022 Trailblazer →
| Year | Complaints | Recalls |
|---|---|---|
| 2026 Trailblazer | 11 | 1 |
| 2025 Trailblazer | 25 | 1 |
| 2024 Trailblazer | 33 | 1 |
| 2023 Trailblazer | 71 | 0 |
| 2022 Trailblazer | 111 | 1 |
| 2021 | 195 | 4 |
| 2014 Trailblazer | 1 | 0 |
| 2009 Trailblazer | 27 | 0 |
| 2008 Trailblazer | 193 | 0 |
| 2007 Trailblazer | 732 | 5 |
| 2006 Trailblazer | 1,108 | 8 |
| 2005 Trailblazer | 1,466 | 2 |
| 2004 Trailblazer | 1,081 | 2 |
| 2003 Trailblazer | 901 | 8 |
| 2002 Trailblazer | 1,149 | 12 |
| 2001 Trailblazer | 20 | 0 |
| 2000 Trailblazer | 26 | 0 |
| 1999 Trailblazer | 4 | 0 |
See all Chevrolet Trailblazer problems by year, every Chevrolet model, or the Chevrolet VIN decoder.
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Frequently asked questions
What are the most common problems with the 2021 Chevrolet Trailblazer?
Owners most often report unknown or other, electrical system, power train problems. The top one, unknown or other, accounts for 54 complaints.
Was there a recall on the 2021 Chevrolet Trailblazer?
Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Chevrolet Trailblazer a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Trailblazer model years, the 2021 has far more complaints than most years, and NHTSA rates it 4–5 out of 5 stars (varies by version) overall in crash tests. Always get a pre-purchase inspection and check the VIN for open recalls.