2001 Mercury Grand Marquis: common problems

Owners of the 2001 Mercury Grand Marquis filed 157 complaints with NHTSA, most often about vehicle speed control and seat belts. Details by component below, with sources.

Key figures

Owner complaints: 157
involving a crash: 26

What fails most often

1 Vehicle speed control 17% of all complaints
2 Seat belts 15% of all complaints
3 Engine and cooling 13% of all complaints
4 Air bags 12% of all complaints
5 Service brakes 9% of all complaints
6 Electrical system 8% of all complaints
7 Powertrain 8% of all complaints
8 Exterior lighting 7% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Vehicle speed control: 27 complaints (17% of all), 8 of them with a crash reported by the owner.
Seat belts: 23 complaints (15% of all), 3 of them with a crash reported by the owner.
Engine and cooling: 20 complaints (13% of all).
Air bags: 19 complaints (12% of all), 16 of them with a crash reported by the owner.
Service brakes: 14 complaints (9% of all), 3 of them with a crash reported by the owner.

Engines and transmissions

US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.

4.6 L · petrol · 8 cyl
automatic, 4-speed

Drive: RWD

Symptoms owners describe

How many of the 157 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

seat belts22 · 14%
warning lights, check engine8 · 5%
airbags did not deploy7 · 4%
jerking, harsh shifts6 · 4%
smoke, burning smell, fire6 · 4%
unintended acceleration6 · 4%
vibration6 · 4%
headlights and tail lights5 · 3%
oil leak or consumption4 · 3%
stalls while driving4 · 3%

Components owners complain about

Component	Owner complaints	involving a crash
Vehicle speed control	27	8
Seat belts	23	3
Engine and cooling	20	0
Air bags	19	16
Service brakes	14	3
Electrical system	13	0
Powertrain	13	0
Exterior lighting	11	1
Steering	11	0
Structure	10	1
Engine	9	1
Suspension	7	0
Fuel system	4	0
Tires	4	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

Was driving down hwy 12 at night september 26 2019 and all I remembered was my lights shutting off due to lighting control module which I learned after the fact didnt have major accident but did hit small ditch and bent up my bumper
Exterior lighting · crash · 2019-09-30 · NHTSA complaint #11259033
Vehicle proceeding north on city street. Collided with side of vehicle #2 west bound at intersection. Driver's side airbag failed to deploy. Passenger side deployed.
Air bags · crash · 2014-11-14 · NHTSA complaint #10654905
Car was hit on the driver side quarter panel causing it to spin and crash head on into highway divider. Air bags did not deploy resulting in additional injuries!!
Air bags · crash · 2014-04-26 · NHTSA complaint #10585039
Sudden acceleration. Incident occurred in my home driveway. Car lurched forward into my house, damaging the right side of my car and left side of the garage.
Vehicle speed control · crash · 2009-09-14 · NHTSA complaint #10283920
While driving 30 mph, the brakes made a squealing sound and locked when the pedal was depressed. The failure caused the contact to rear end the preceding vehicle. The air bags failed to deploy. There were no injuries. A police report was filed. The vehicle has not been diagnosed by the dealer.
Air bags · crash · 2008-04-23 · NHTSA complaint #10225474
The air bags did not deploy. The failure mileage was 25,000. The passenger and driver sustained injuries. The vehicle was towed. Pictures were taken ,and a police report was filed.
Vehicle speed control · crash · 2007-04-11 · NHTSA complaint #10187586
The highway patrol concluded that the driver was not wearing seat belt. The driver was killed as a result of injuries sustained when he was ejected from his vehicle. After the accident deceased family learned of a seat belt buckle recall (01v227001).
Seat belts · crash · 2005-04-20 · NHTSA complaint #10118972
Attorney represented the family of wallace petro who had died in an automobile accident while driving a 2001 grand marquis the attorney alleged that the driver's side seat belt buckle failed, and caused mr. Petro to be ejected during the roll over incident. The vehicle was previously serviced under recall 01v227000.
Seat belts · crash · 2005-02-10 · NHTSA complaint #10111306

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20001
200121
200226
200316
200414
20059
20062
20073
20087
20097
20107
20112
20121
20134
20145
20155
20164
20175
20185
20194
20204
20211
20224
20231

Comparison

By complaint count this model year ranks 2,534 of 36,656 model years in the NHTSA data (top 7% most complained about).

On average one model year of the Grand Marquis has 117 complaints (34 years in the data). This year has 157, above average.

What to check before buying

Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
Seat belts. Belt pretensioners after airbag deployment, SRS codes.
Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.

Other years of this model

Questions and answers

What are the most common problems with the 2001 Mercury Grand Marquis?

Owner complaints to NHTSA most often mention: vehicle speed control, seat belts, engine and cooling. Total complaints: 157. The most frequent symptoms in complaint texts: seat belts (14%), warning lights, check engine (5%), airbags did not deploy (4%).

How many service bulletins (TSB) were issued for the 2001 Mercury Grand Marquis?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2001 Mercury Grand Marquis from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2001 models

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.