2003 Mercury Grand Marquis Problems

High Complaint Volume

Real NHTSA owner complaints for the 2003 Mercury Grand Marquis.

20022004
Complaints
448
Crashes
32
Fires
2
Injuries
22
Fatalities
—
Recalls
1

Worst 2003 Mercury Grand Marquis Problems

Top 3 most-reported issues with average mileage at failure.

#1187 complaints

Headlight/Taillight Failures

Avg mileage:106,838 mi
Crash-related:4
#246 complaints

Electrical Faults

Avg mileage:99,847 mi
Crash-related:4
#327 complaints

Steering Defects

Avg mileage:99,730 mi
Considering a 2003 Mercury Grand Marquis?

Check the actual VIN — every car is different.

This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer rollbacks. Full report just $4.99 (vs. Carfax $44.99).

Check VIN Free

All Problems by Category

Every NHTSA complaint category for the 2003 Mercury Grand Marquis.

Headlight/Taillight Failures
187
complaints
Crashes
4
Fires
—
Avg Miles
106,838
Electrical Faults
46
complaints
Crashes
4
Fires
—
Avg Miles
99,847
Steering Defects
27
complaints
Crashes
—
Fires
—
Avg Miles
99,730
Exterior Lighting:Headlights
19
complaints
Crashes
1
Fires
—
Avg Miles
84,692
Unintended Acceleration
18
complaints
Crashes
9
Fires
—
Avg Miles
62,273
Suspension Failures
16
complaints
Crashes
—
Fires
—
Avg Miles
69,586
Airbags
8
complaints
Crashes
3
Fires
—
Avg Miles
44,455
Suspension:Rear
8
complaints
Crashes
—
Fires
—
Avg Miles
66,043
Engine And Engine Cooling:Engine
7
complaints
Crashes
1
Fires
—
Avg Miles
19,834
Transmission / Drivetrain
6
complaints
Crashes
—
Fires
—
Avg Miles
46,490
Vehicle Speed Control:Accelerator Pedal
6
complaints
Crashes
2
Fires
—
Avg Miles
18,697
Engine Problems
5
complaints
Crashes
1
Fires
—
Avg Miles
179,750
Seat Belt Issues
5
complaints
Crashes
2
Fires
—
Avg Miles
93,222
Body Structure
5
complaints
Crashes
—
Fires
—
Avg Miles
49,000
Fuel System
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Wipers & Visibility
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Wheel Issues
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Wheels:Rim
4
complaints
Crashes
—
Fires
—
Avg Miles
—
Engine And Engine Cooling:Cooling System
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Automatic Transmission
3
complaints
Crashes
—
Fires
—
Avg Miles
—
Brakes
3
complaints
Crashes
1
Fires
—
Avg Miles
—
Service Brakes, Hydraulic:Pedals And Linkages
3
complaints
Crashes
1
Fires
—
Avg Miles
—
Vehicle Speed Control:Cruise Control
3
complaints
Crashes
2
Fires
—
Avg Miles
—
Air Bags:Frontal
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Engine & Cooling
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Gasoline Fuel System
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Fuel System, Gasoline:Storage:Tank Assembly
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Seat-Related Issues
2
complaints
Crashes
—
Fires
—
Avg Miles
—
Suspension:Front
2
complaints
Crashes
—
Fires
—
Avg Miles
—

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2003 Mercury Grand Marquis. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2003 Mercury Grand Marquis

1 NHTSA recall campaign affecting ~296,004 vehicles.

15V861000Exterior Lighting:headlights
~296,004 affected

Ford Motor Company (Ford) is recalling certain model year 2003-2005 Ford Crown Victoria and Mercury Grand Marquis vehicles manufactured October 3, 2001, to August 2, 2005. The affected vehicles have a lighting control module (LCM) that may fail, resulting in a loss of headlights.

Other Mercury Grand Marquis Years

1981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011

2003 Mercury Grand Marquis — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2003 Mercury Grand Marquis reliable?
Verdict: High Complaint Volume. The 2003 Mercury Grand Marquis has 448 NHTSA complaints, 32 crash-related, and 1 recall campaign. The most common issue is Headlight/Taillight Failures with 187 complaints. Source: NHTSA via VinItel.
What are common problems with the 2003 Mercury Grand Marquis?
Top reported problems: Headlight/Taillight Failures (187 complaints, avg 106,838 mi); Electrical Faults (46 complaints, avg 99,847 mi); Steering Defects (27 complaints, avg 99,730 mi). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2003 Mercury Grand Marquis?
The weighted average mileage at time of complaint is about 94,027 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2003 Mercury Grand Marquis?
NHTSA complaints for the 2003 Mercury Grand Marquis include 32 crash-related reports, 2 fire reports, 22 injuries, and 0 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2003 Mercury Grand Marquis have any recalls?
Yes — 1 NHTSA recall campaign affecting an estimated 296,004 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2003 Mercury Grand Marquis?
This year has a higher-than-normal complaint volume. It's not an automatic no, but focus inspection on the top reported issue (headlight/taillight failures) and verify open recalls have been addressed.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Mercury Grand Marquis reliability report with year-by-year comparison and generation analysis.

Check Your Specific 2003 Mercury Grand Marquis

Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.

Check Any VIN — $4.99