Mercury Grand Marquis vs Jeep Liberty

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 Grand Marquis	Jeep Liberty
Complaints on file	4,953	11,711
Model years covered	1977–2011	2000–2012
Worst model year	2003	2002
Best model year	2011	2009
Crashes reported	395	820
Fires reported	277	218
Injuries reported	239	631
Deaths reported	15	19
Most complained-about part	Lights	Suspension
Share of complaints involving harm	18.7%	14.4%

Mercury Grand Marquis by year

1 1 2 8 14 24 29 22 57 98 69 63 106 330 178 197 222 282 370 168 202 216 207 101 449 422 634 188 111 101 35 35 11

77 78 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11

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

What breaks

Lights 950 19.2%

Electrical System 556 11.2%

Engine & Cooling 535 10.8%

Acceleration & Cruise Control 459 9.3%

Brakes 369 7.5%

Steering 365 7.4%

Airbags 248 5.0%

Transmission & Drivetrain 238 4.8%

Jeep Liberty by year

7 12 2,330 1,732 1,440 1,461 1,812 941 766 146 271 241 552

00 01 02 03 04 05 06 07 08 09 10 11 12

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

What breaks

Suspension 2,062 17.6%

Fuel & Propulsion 1,786 15.3%

Airbags 1,356 11.6%

Windows, Mirrors & Wipers 1,213 10.4%

Electrical System 901 7.7%

Body & Structure 895 7.6%

Engine & Cooling 605 5.2%

Transmission & Drivetrain 516 4.4%