Mercury Mountaineer vs GMC Yukon

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	Mercury Mountaineer	GMC Yukon
Complaints on file	2,646	6,577
Model years covered	1996–2010	1986–2026
Worst model year	1997	2007
Best model year	2010	2020
Crashes reported	191	279
Fires reported	91	54
Injuries reported	148	200
Deaths reported	5	13
Most complained-about part	Transmission & Drivetrain	Engine & Cooling
Share of complaints involving harm	16.4%	8.3%

Mercury Mountaineer by year

3 399 298 182 164 32 504 220 271 113 153 119 156 8 24

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10

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

What breaks

Transmission & Drivetrain 399 15.1%

Tires 364 13.8%

Body & Structure 298 11.3%

Acceleration & Cruise Control 221 8.4%

Engine & Cooling 217 8.2%

Electrical System 190 7.2%

Brakes 142 5.4%

Seats 127 4.8%

GMC Yukon by year

1 1 23 19 71 117 90 180 90 262 199 258 187 251 186 101 49 581 250 116 149 216 89 149 79 682 370 257 95 73 43 469 258 325 162 79 50

86 87 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

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

What breaks

Engine & Cooling 1,025 15.6%

Brakes 897 13.6%

Airbags 668 10.2%

Electrical System 616 9.4%

Other & Unspecified 535 8.1%

Transmission & Drivetrain 488 7.4%

Lights 466 7.1%

Body & Structure 303 4.6%