Mazda CX-9 vs Buick Regal

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	Mazda CX-9	Buick Regal
Complaints on file	1,827	4,456
Model years covered	2007–2023	1978–2020
Worst model year	2012	1996
Best model year	2020	2004
Crashes reported	92	227
Fires reported	15	335
Injuries reported	38	169
Deaths reported	0	5
Most complained-about part	Brakes	Brakes
Share of complaints involving harm	7.9%	16.5%

Mazda CX-9 by year

98 234 66 194 209 263 80 73 45 142 78 167 75 26 47 13 17

07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

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

What breaks

Brakes 436 23.9%

Engine & Cooling 369 20.2%

Transmission & Drivetrain 162 8.9%

Suspension 148 8.1%

Airbags 135 7.4%

Other & Unspecified 120 6.6%

Electrical System 85 4.7%

Steering 60 3.3%

Buick Regal by year

1 3 1 4 6 10 14 28 181 150 107 303 204 118 146 218 273 174 376 301 245 229 150 139 94 8 1 1 2 441 138 137 51 50 61 26 33 29 3

78 79 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 08 09 10 11 12 13 14 15 16 17 18 19 20

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

What breaks

Brakes 867 19.5%

Engine & Cooling 811 18.2%

Electrical System 591 13.3%

Steering 325 7.3%

Lights 241 5.4%

Transmission & Drivetrain 210 4.7%

Windows, Mirrors & Wipers 172 3.9%

Airbags 149 3.3%