Mercury Grand Marquis problems by year

3,912 owner complaints filed with NHTSA across 30 Mercury Grand Marquis model years. Last verified Sep 21, 2026. Complaint totals are lifetime counts — years that have been on the road longer accumulate more reports.

Years with the most complaints

2005 (488), 2003 (362), 2004 (348), 1997 (316)

Years with notably fewer complaints

1984 (15), 1985 (21), 1986 (21), 2009 (26), 2010 (24)

Year	Complaints	Recalls	Most reported problem
2011	9	2	—
2010 Fewer complaints	24	2	Steering
2009 Fewer complaints	26	2	Steering
2008	78	3	Steering
2007	96	3	Tires
2006	143	2	Air Bags
2005 Most complained	488	4	Exterior Lighting
2004 Most complained	348	1	Exterior Lighting
2003 Most complained	362	1	Exterior Lighting
2002	78	0	Vehicle Speed Control
2001	157	3	Vehicle Speed Control
2000	162	6	Exterior Lighting
1999	164	3	Engine and Engine Cooling
1998	143	5	Engine and Engine Cooling
1997 Most complained	316	4	Engine and Engine Cooling
1996	239	4	Engine and Engine Cooling
1995	179	2	Service Brakes, Hydraulic
1994	156	2	Vehicle Speed Control
1993	144	2	Power Train
1992	255	2	Service Brakes, Hydraulic
1991	82	0	Electrical System
1990	56	0	Electrical System
1989	58	0	Electrical System
1988	73	0	Electrical System
1987	43	0	Electrical System
1986 Fewer complaints	21	0	Electrical System
1985 Fewer complaints	21	0	Electrical System
1984 Fewer complaints	15	0	—
1983	7	0	—
1982	3	0	—

How to read this. Complaints are unverified reports owners file with NHTSA’s Office of Defects Investigation, counted once per case number. Raw totals are not adjusted for sales volume, and recent model years have had less time on the road. “Most complained” flags years well above the model’s median; treat it as a signal for deeper research, not a verdict. This page is not affiliated with Mercury.