How common are fuel system complaints on the 2021 Chevrolet Trailblazer?

NHTSA logged 18 fuel system complaints for the 2021 Trailblazer, making up 9% of all 193 complaints filed for that model year, the highest share of any year listed in this data.

Is there a recall for the 2021 Chevrolet Trailblazer fuel system?

This data lists no related recalls for the 2021 Trailblazer fuel system, despite the complaint volume.

At what mileage do 2021 Trailblazer fuel system problems usually appear?

The median mileage at failure reported to NHTSA is 21,000 miles.

Were there any crashes, fires, or injuries linked to these fuel system complaints?

NHTSA data for these complaints shows 0 crashes, 0 fires, and 0 injuries reported.

Do other Trailblazer model years have as many fuel system complaints?

No. The 2022 model year has 7 fuel system complaints (6% share) and 2023 has 3 (4% share), both lower than the 2021 model year's 18 complaints and 9% share.

2021 Chevrolet Trailblazer Fuel System Problems

NHTSA lists 18 fuel system complaints for the 2021 Chevrolet Trailblazer, 9% of its 193 total complaints that year, the highest share among the model years shown. Median mileage at failure is 21,000. No related recalls are listed in this data.

Fuel System complaints: 18; 9% of 193
Crashes reported: 0
Fires reported: 0
Injuries reported: 0
Median mileage: 21,000 mi
Related recalls: 0

Typical fuel system symptoms owners report

Owners report a strong gasoline smell inside and under the hood, later traced to a leaking fuel rail that some dealers said needed full replacement.
Some drivers describe unexpected acceleration, with speed climbing on its own from around 50 up to about 80, forcing them to brake hard and pull over.
Several complaints mention fuel odor entering the cabin while driving, causing dizziness, and drivers stopping to check the source.
Others report reduced engine power tied to turbo or wastegate/solenoid issues, with the car losing power around a stated mileage near 23,000.
A few owners report evap purge pump failures triggering check engine lights and lingering fuel-smell complaints even after repair.
One owner reported a failed fuel gauge and fuel pump/floater that left them unable to tell how much fuel was in the tank.

When 2021 Chevrolet Trailblazer fuel system complaints were filed

First complaint Jan 28, 2022, latest Sep 3, 2026.

18 complaints filed with NHTSA from Jan 2022 to Sep 2026; peak Aug 2024 (2).

Fuel System recalls for the 2021 Chevrolet Trailblazer

No safety recalls on record for this model year.

Fuel System complaints by Trailblazer model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

2005611 (42%)
2006607 (55%)
2007311 (42%)
20088 (4%)
20091 (4%)
20140 (0%)
202118 (9%)
20227 (6%)
20233 (4%)
20240 (0%)
20250 (0%)

Frequently asked questions

How common are fuel system complaints on the 2021 Chevrolet Trailblazer?: NHTSA logged 18 fuel system complaints for the 2021 Trailblazer, making up 9% of all 193 complaints filed for that model year, the highest share of any year listed in this data.
Is there a recall for the 2021 Chevrolet Trailblazer fuel system?: This data lists no related recalls for the 2021 Trailblazer fuel system, despite the complaint volume.
At what mileage do 2021 Trailblazer fuel system problems usually appear?: The median mileage at failure reported to NHTSA is 21,000 miles.
Were there any crashes, fires, or injuries linked to these fuel system complaints?: NHTSA data for these complaints shows 0 crashes, 0 fires, and 0 injuries reported.
Do other Trailblazer model years have as many fuel system complaints?: No. The 2022 model year has 7 fuel system complaints (6% share) and 2023 has 3 (4% share), both lower than the 2021 model year's 18 complaints and 9% share.