2021 Chevrolet Trailblazer: Recalls, Problems & MPG
Here are the deets on the 2021 Chevrolet Trailblazer: 4 recalls, 195 owner complaints and up to 31 mpg combined.
Recalls
4 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Equipment, Tires Vehicle recall #20V295000 · 2020 · 20 vehicles
What's wrong: 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."
Why it matters: If drivers are uninformed and overinflate or underinflate their tires, this May increase the risk of a crash.
The 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.
Seats, Seats Vehicle recall #20V537000 · 2020 · 105 vehicles
What's wrong: The rear attachment bolts of one or both front seats May not have been installed.
Why it matters: If an occupied front seat is missing the rear attachment bolts, it May move during a crash, increasing risk of injury to the occupant.
The 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.
Brakes Vehicle recall #20V588000 · 2020 · 3,677 vehicles
What's wrong: Sensor connection contamination in the electronic brake boost system May cause an interruption of communication between the sensor and the brake boost system.
Why it matters: 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.
The fix: Gm will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020.
Equipment Vehicle recall #21V440000 · 2021 · 135,400 vehicles
What's wrong: 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.
Why it matters: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.
The 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.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 3 mention a fire, 5 injuries and 0 deaths were reported.
What owners describe
- Other / unknown (54): the most common themes are electrical failure (10), stalls / loses power (8).
- Electrical (41): the most common themes are electrical failure (12), warning light on (8).
- Transmission & drivetrain (41): the most common themes are hard / delayed shifting (28), stalls / loses power (12), warning light on (10).
- Engine (38): the most common themes are warning light on (16), stalls / loses power (9), electrical failure (7).
The 2021 Chevrolet Trailblazer has 195 owner complaints, ranking #7 of 18 Trailblazer model years for complaints (well below the 397 average). Complaints peaked in 2025 (48 filed that year). The typical problem showed up when the car was about 3 years old, at a median of 20,000 miles. Neighboring years: 2022 (110 complaints, 1 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 1.3 L 3-cyl turbo | Automatic (variable gear ratios) | Front-Wheel Drive | 29 | 33 | 31 | Regular |
| 1.2 L 3-cyl turbo | Automatic (variable gear ratios) | Front-Wheel Drive | 28 | 31 | 29 | Regular |
| 1.3 L 3-cyl turbo | Automatic 9-spd | All-Wheel Drive | 26 | 30 | 28 | Regular |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2021 Chevrolet Trailblazer.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2021 Chevrolet Trailblazer have any recalls?
Yes. NHTSA lists 4 vehicle recalls for the 2021 Chevrolet Trailblazer. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2021 Chevrolet Trailblazer problems?
Owners have filed 195 complaints with NHTSA. The most-reported areas are other / unknown (54), electrical (41), transmission & drivetrain (41).
What gas mileage does the 2021 Chevrolet Trailblazer get?
EPA ratings run up to 31 mpg combined (1.3 L, Automatic (variable gear ratios)), across 3 engine and transmission combos.
Where can I get a 2021 Chevrolet Trailblazer repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.