Buick Riviera 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	Buick Riviera	Chevrolet Trailblazer EXT
Complaints on file	439	1,070
Model years covered	1969–1999	2002–2006
Worst model year	1995	2003
Best model year	1996	2002
Crashes reported	30	23
Fires reported	23	20
Injuries reported	18	21
Deaths reported	5	0
Most complained-about part	Engine & Cooling	Fuel & Propulsion
Share of complaints involving harm	17.3%	6%

Buick Riviera by year

1 1 1 1 7 2 8 1 10 16 16 17 9 177 69 48 43 12

69 73 82 83 85 86 87 88 89 90 91 92 93 95 96 97 98 99

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

What breaks

Engine & Cooling 66 15.0%

Brakes 60 13.7%

Electrical System 47 10.7%

Steering 42 9.6%

Seat Belts 38 8.7%

Transmission & Drivetrain 35 8.0%

Fuel & Propulsion 26 5.9%

Airbags 22 5.0%

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%