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2005 Mercury Grand MarquisProblems, recalls & complaints

NHTSA has logged 488 owner complaints about the 2005 Mercury Grand Marquis, most often about the exterior lighting. It is covered by 4 safety recalls, and for recall 15V-861 the manufacturer reports only 40% of affected cars repaired.

2005 Mercury Grand Marquis
26
CarFlaw IndexYear to avoid2.9× the Grand Marquis median · #1 of 27 years by complaints
Safety recalls4Lowest repair rate 40%Owner complaints48842 with a crash, fire or injuryTypical failure mileage78kExterior lighting, median miles

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through September 16, 2026. Updated daily. Photo: IFCAR, Public domain.

Complaints by system

Where the 2005 Mercury Grand Marquis has problems

488 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Exterior lighting2932
Electrical system757
Air bags676
Vehicle speed control3915
Seat belts360
Steering202
Structure113
Service brakes, hydraulic101
Engine and engine cooling92
19 other systems536

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

4 recalls

2005 Mercury Grand Marquis recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

40%repaired · 2018 Q3

Exterior lighting: headlights

Recall 15V-861 · Dec 22, 2015 · 296,004 vehicles · 119,249 repaired

Risk. A loss of headlights can reduce driver visibility and increase the risk of a crash.

Problem, fix and repair progress →

70%repaired · 2016 Q1

Rack and pinion: pinion shaft

Recall 14V-704 · Nov 5, 2014 · 36,888 vehicles · 25,916 repaired

Risk. Improper servicing of the upper intermediate shaft could cause the shaft to separate, which can then result in a loss of steering control, and increasing the…

Problem, fix and repair progress →

61%repaired · 2015 Q1

Steering

Recall 13V-385 · Aug 29, 2013 · 355,000 vehicles · 215,967 repaired

Risk. If the lower bearing separates, the vehicle may experience a loss of steering, increasing the risk of a crash.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercury.

Mileage at failure

When do exterior lighting problems start?

78kmiles, median

Based on the odometer reading in 249 exterior lighting complaints. 72% were reported before 100,000 miles.

median0k50k100k150k200k+
9under 30k miles179under 100k miles70100k miles or more
Owner-reported costs

What owners say repairs cost

Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.

Exterior lighting

26 owners mentioned a cost

$650median

Middle half: $505 – $800

Air bags

15 owners mentioned a cost

$1,200median

Middle half: $765 – $1,450

Electrical system

10 owners mentioned a cost

$747median

Middle half: $700 – $800

If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.

Best & worst years

2005 vs. every other Grand Marquis year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Grand Marquis median. How we score

'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
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2005 Mercury Grand Marquis safety ratings

2005 Mercury Grand Marquis 4-DR. in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

  • Stability control: No
  • Forward collision warning: No
  • Lane departure warning: No
4 investigations

NHTSA defect investigations

Federal investigations that included the 2005 Mercury Grand Marquis, and the recalls they led to.

  1. Loss of headlamp/exterior lightingDP15002 · closed Aug 11, 2015
    No recall
  2. LOSS OF HEADLIGHT FUNCTIONPE08066 · closed Mar 24, 2009
    No recall
  3. Steering Column Shaft ObstructionPE14021 · closed Nov 21, 2014
    No recall
  4. Loss of headlightsPE15028 · closed Jan 8, 2016
    Led to recall 15V-861
In owners' words

What Grand Marquis owners report

Recent exterior lighting complaints filed with NHTSA, shortened. Personal details are removed.

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving 60 MPH, the front headlights flickered on and off before turning off. The failure had occurred while the contact was driving at night. Upon inspecting the vehicle, the contact became aware of scorch marks on the…
Complaint 11764784 · Sep 16, 2026 · 144,500 miles
The contact owns a 2005 Mercury Grand Marquis. The vehicle was taken to the local dealer, where it was repaired under NHTSA Campaign Number: 15V861000 (Exterior Lighting). The contact stated that the headlights activated without driver input. The contact removed the circuit wires. The vehicle was…
Complaint 11670450 · Jul 1, 2025 · 80,082 miles
The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at various speeds and at night, the headlights independently turned off. The contact had taken the vehicle to an independent mechanic where it was diagnosed and determined that the lighting control module needed to…
Complaint 11660606 · May 13, 2025 · 160,000 miles

Own a 2005 Grand Marquis?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.