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ProblemsByVin File / 2021-CHEVROLET-TRAILBLAZER
2021 · chevrolet

chevrolet Trailblazer problems

3 safety recalls. 168 owner complaints. We mapped every trouble spot before you sign the papers.

0 5 10
Reliability score
7.0 / 10

Solid reliability overall. Common issues are concentrated in a few systems.

0
Critical
3
Severe
0
Moderate

Top trouble spots 8 categories with 3+ complaints

powertrain
34 reports · avg $2,500
severe
electrical
27 reports · avg $850
severe
engine
21 reports · avg $3,100
moderate
brakes
17 reports · avg $450
severe
body
7 reports · avg $1,500
severe
steering
6 reports · avg $700
severe
cruise control
3 reports · avg $600
severe
visibility
3 reports · avg $350
moderate

What owners are saying recent NHTSA-filed complaints · verbatim

2021 Trailblazer · other
The rear hatch interior trim that seals the hatch from exterior elements and sounds continuously comes off, even after having dealership to repair/replace. The trim will not remain in place and is a distraction while driving and hearing out of vechile noise. And the winter…
12/31/2025 · NHTSA ODI #11708084.0
2021 Trailblazer · brakes
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…
12/31/2024 · NHTSA ODI #11633315.0
2021 Trailblazer · electrical
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…
12/27/2024 · NHTSA ODI #11632626.0
2021 Trailblazer · other
The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while operating the vehicle at night, while reversing the vehicle, the back-up camera image became extremely bright creating a visibility hazard for the driver. The contact stated that the display screen was…
12/22/2023 · NHTSA ODI #11561456.0

Estimate your repair exposure

Drag to your current mileage. Numbers are derived from this vehicle's complaint history.

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Active recalls showing 3 of 3

severe NHTSA 20V588000 24/09/2020

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

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.
severe NHTSA 20V295000 21/05/2020

General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires

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.
severe NHTSA 20V537000 03/09/2020

General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles

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.

Common questions

Is the 2021 Chevrolet Trailblazer reliable?

Mostly yes. With a reliability score of 7.0 out of 10 based on 168 owner complaints filed with NHTSA, the 2021 Chevrolet Trailblazer is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.

What's the most common problem on the 2021 Chevrolet Trailblazer?

Based on NHTSA records, the most-reported issue is powertrain, with 34 complaints filed. Average repair cost runs about $2,500 at an independent shop.

What's the most expensive thing that goes wrong?

The powertrain is one of the costlier repair items. Average repair cost runs about $2,500 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.

How do I check if my Chevrolet Trailblazer has open recalls?

Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.

Is an extended warranty worth it on a 2021 Chevrolet Trailblazer?

Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 168 complaints on file and the costliest repair averaging $2,500, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.

Related vehicles

Recall and complaint data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database, last synced 19 hours ago. Editorial commentary written by ProblemsByVin contributors and reviewed by ASE-certified mechanics. We are not affiliated with chevrolet. Some links on this page are affiliate links and we may earn a commission if you complete a quote or purchase.
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