Mercedes Benz GLA 250 vs Chevrolet Trailblazer EXT

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure	Mercedes Benz GLA 250	Chevrolet Trailblazer EXT
Complaints on file	438	1,070
Model years covered	2014–2025	2002–2006
Worst model year	2015	2003
Best model year	2020	2002
Crashes reported	27	23
Fires reported	4	20
Injuries reported	29	21
Deaths reported	0	0
Most complained-about part	Engine & Cooling	Fuel & Propulsion
Share of complaints involving harm	13.7%	6%

Mercedes Benz GLA 250 by year

1 137 71 42 69 46 16 28 5 15 2 6

14 15 16 17 18 19 20 21 22 23 24 25

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 79 18.0%

Other & Unspecified 62 14.2%

Electrical System 47 10.7%

Transmission & Drivetrain 46 10.5%

Fuel & Propulsion 37 8.4%

Airbags 34 7.8%

Driver Assist & Collision Avoidance 30 6.8%

Windows, Mirrors & Wipers 20 4.6%

Chevrolet Trailblazer EXT by year

120 406 306 238

02 03 04 06

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Fuel & Propulsion 297 27.8%

Electrical System 281 26.3%

Transmission & Drivetrain 97 9.1%

Lights 60 5.6%

Engine & Cooling 59 5.5%

Windows, Mirrors & Wipers 56 5.2%

Body & Structure 47 4.4%

Doors, Latches & Locks 24 2.2%