2004 MERCURY GRAND MARQUIS — Owner-Reported Problems

NHTSA Office of Defects Investigation Snapshot 2026-08-22 346 complaints · 0 recalls
Most-reported system: EXTERIOR LIGHTING (195 complaints · 56.4%)
Safety signals:
  • Crashes 17
  • Fires 4
  • Injuries 10
  • Deaths 1
Compare with 2003 →
NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Component Problem Distribution

Share of owner complaints filed for each vehicle system (unaffected by sales volume)

Component Problem Distribution EXTERIOR LIGHTING appears in 195 of 346 owner complaints (56.4%) in this vehicle snapshot. EXTERIOR LIGHTING: 195 complaints, 56.4% of reports EXTERIOR LIGHTING 195 · 56.4% · 2 crash reports STEERING: 64 complaints, 18.5% of reports STEERING 64 · 18.5% · 4 crash reports VEHICLE SPEED CONTROL: 19 complaints, 5.5% of reports VEHICLE SPEED CONTROL 19 · 5.5% · 4 crash reports ENGINE: 10 complaints, 2.9% of reports ENGINE 10 · 2.9% · 1 fire reports ELECTRICAL SYSTEM: 9 complaints, 2.6% of reports ELECTRICAL SYSTEM 9 · 2.6% · 1 fire reports VISIBILITY: 8 complaints, 2.3% of reports VISIBILITY 8 · 2.3% POWER TRAIN: 6 complaints, 1.7% of reports POWER TRAIN 6 · 1.7% · 1 crash reports FUEL SYSTEM: 5 complaints, 1.4% of reports FUEL SYSTEM 5 · 1.4% · 1 crash reports 2 fire reports SERVICE BRAKES: 5 complaints, 1.4% of reports SERVICE BRAKES 5 · 1.4% · 1 crash reports UNKNOWN OR OTHER: 63 complaints, 18.2% of reports UNKNOWN OR OTHER 63 · 18.2% · 6 crash reports 2 fire reports 0% 25% 50% 75% 100%

UNKNOWN OR OTHER is an NHTSA classification artifact and is always listed last.

View component data as a table
System / Component Complaints Share of Reports Safety Reports (Crashes / Fires)
EXTERIOR LIGHTING 195 56.4% 2 crashes · 0 fires
STEERING 64 18.5% 4 crashes · 0 fires
VEHICLE SPEED CONTROL 19 5.5% 4 crashes · 0 fires
ENGINE 10 2.9% 0 crashes · 1 fires
ELECTRICAL SYSTEM 9 2.6% 0 crashes · 1 fires
VISIBILITY 8 2.3% 0 crashes · 0 fires
POWER TRAIN 6 1.7% 1 crashes · 0 fires
FUEL SYSTEM 5 1.4% 1 crashes · 2 fires
SERVICE BRAKES 5 1.4% 1 crashes · 0 fires
UNKNOWN OR OTHER 63 18.2% 6 crashes · 2 fires
NHTSA Consumer Complaints, NHTSA Safety Recalls, and NHTSA Defect Investigations Snapshot 2026-08-22 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Problem & Recall Timeline

Observed complaint volume and manufacturer recall actions over time

Problem & Recall Timeline Owner reports in this snapshot begin in Jan 2004. 2004-Q1: 3 owner reports 3 2004-Q2: 1 owner reports 1 2004-Q3: 4 owner reports 4 2004-Q4: 6 owner reports 6 2005-Q1: 3 owner reports 3 2005-Q2: 4 owner reports 4 2005-Q3: 5 owner reports 5 2005-Q4: 5 owner reports 5 2006-Q1: 5 owner reports 5 2006-Q3: 1 owner reports 1 2007-Q2: 1 owner reports 1 2007-Q3: 3 owner reports 3 2007-Q4: 2 owner reports 2 2008-Q2: 1 owner reports 1 2008-Q3: 2 owner reports 2 2008-Q4: 2 owner reports 2 2009-Q1: 5 owner reports 5 2009-Q2: 2 owner reports 2 2009-Q3: 3 owner reports 3 2009-Q4: 1 owner reports 1 2010-Q1: 3 owner reports 3 2010-Q2: 5 owner reports 5 2010-Q3: 6 owner reports 6 2010-Q4: 8 owner reports 8 2011-Q1: 5 owner reports 5 2011-Q2: 8 owner reports 8 2011-Q3: 10 owner reports 10 2011-Q4: 10 owner reports 10 2012-Q1: 4 owner reports 4 2012-Q2: 3 owner reports 3 2012-Q3: 3 owner reports 3 2012-Q4: 4 owner reports 4 2013-Q1: 7 owner reports 7 2013-Q2: 2 owner reports 2 2013-Q3: 13 owner reports 13 2013-Q4: 14 owner reports 14 2014-Q1: 5 owner reports 5 2014-Q2: 19 owner reports 19 2014-Q3: 18 owner reports 18 2014-Q4: 8 owner reports 8 2015-Q1: 4 owner reports 4 2015-Q2: 13 owner reports 13 2015-Q3: 9 owner reports 9 2015-Q4: 14 owner reports 14 2016-Q1: 8 owner reports 8 2016-Q2: 10 owner reports 10 2016-Q3: 7 owner reports 7 2016-Q4: 6 owner reports 6 2017-Q1: 7 owner reports 7 2017-Q2: 4 owner reports 4 2017-Q3: 6 owner reports 6 2017-Q4: 3 owner reports 3 2018-Q1: 6 owner reports 6 2018-Q2: 5 owner reports 5 2018-Q4: 4 owner reports 4 2019-Q1: 2 owner reports 2 2019-Q3: 1 owner reports 1 2019-Q4: 2 owner reports 2 2020-Q1: 1 owner reports 1 2020-Q3: 2 owner reports 2 2020-Q4: 1 owner reports 1 2021-Q1: 1 owner reports 1 2021-Q3: 1 owner reports 1 2021-Q4: 1 owner reports 1 2022-Q1: 1 owner reports 1 2022-Q2: 1 owner reports 1 2022-Q3: 2 owner reports 2 2023-Q2: 1 owner reports 1 2023-Q3: 2 owner reports 2 2023-Q4: 2 owner reports 2 2024-Q2: 2 owner reports 2 2025-Q3: 3 owner reports 3 Owner reports Jan 2004 Jul 2025 Investigation DP05005 ● Investigation DP05005 Investigation PE08066 ● Investigation PE08066 Investigation PE14021 ● Investigation PE14021 Investigation DP15002 ● Investigation DP15002 Investigation PE15028 ● Investigation PE15028
View timeline records as a table
Date Record type Count Record identifier
2004-Q1 Owner reports 3
2004-Q2 Owner reports 1
2004-Q3 Owner reports 4
2004-Q4 Owner reports 6
2005-Q1 Owner reports 3
2005-Q2 Owner reports 4
2005-Q3 Owner reports 5
2005-Q4 Owner reports 5
2006-Q1 Owner reports 5
2006-Q3 Owner reports 1
2007-Q2 Owner reports 1
2007-Q3 Owner reports 3
2007-Q4 Owner reports 2
2008-Q2 Owner reports 1
2008-Q3 Owner reports 2
2008-Q4 Owner reports 2
2009-Q1 Owner reports 5
2009-Q2 Owner reports 2
2009-Q3 Owner reports 3
2009-Q4 Owner reports 1
2010-Q1 Owner reports 3
2010-Q2 Owner reports 5
2010-Q3 Owner reports 6
2010-Q4 Owner reports 8
2011-Q1 Owner reports 5
2011-Q2 Owner reports 8
2011-Q3 Owner reports 10
2011-Q4 Owner reports 10
2012-Q1 Owner reports 4
2012-Q2 Owner reports 3
2012-Q3 Owner reports 3
2012-Q4 Owner reports 4
2013-Q1 Owner reports 7
2013-Q2 Owner reports 2
2013-Q3 Owner reports 13
2013-Q4 Owner reports 14
2014-Q1 Owner reports 5
2014-Q2 Owner reports 19
2014-Q3 Owner reports 18
2014-Q4 Owner reports 8
2015-Q1 Owner reports 4
2015-Q2 Owner reports 13
2015-Q3 Owner reports 9
2015-Q4 Owner reports 14
2016-Q1 Owner reports 8
2016-Q2 Owner reports 10
2016-Q3 Owner reports 7
2016-Q4 Owner reports 6
2017-Q1 Owner reports 7
2017-Q2 Owner reports 4
2017-Q3 Owner reports 6
2017-Q4 Owner reports 3
2018-Q1 Owner reports 6
2018-Q2 Owner reports 5
2018-Q4 Owner reports 4
2019-Q1 Owner reports 2
2019-Q3 Owner reports 1
2019-Q4 Owner reports 2
2020-Q1 Owner reports 1
2020-Q3 Owner reports 2
2020-Q4 Owner reports 1
2021-Q1 Owner reports 1
2021-Q3 Owner reports 1
2021-Q4 Owner reports 1
2022-Q1 Owner reports 1
2022-Q2 Owner reports 1
2022-Q3 Owner reports 2
2023-Q2 Owner reports 1
2023-Q3 Owner reports 2
2023-Q4 Owner reports 2
2024-Q2 Owner reports 2
2025-Q3 Owner reports 3
Defect investigation 1 DP05005
Defect investigation 1 PE08066
Defect investigation 1 PE14021
Defect investigation 1 DP15002
Defect investigation 1 PE15028
NHTSA Safety Recalls Snapshot 2026-08-22 Open source record Read our complete data methodology →

Safety Recalls (0)

Official safety recall campaigns filed with NHTSA

Zero safety recalls recorded for this model year in official NHTSA records.

NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Complaint Narrative Explorer

Verbatim owner-reported defect narratives from NHTSA public records

Data: NHTSA Office of Defects Investigation · snapshot Aug 21, 2026
Safety incident filters
Showing 0 of 346 complaints · page 1 of 14

No complaints match the current filters.
EPA Fuel Economy Database Snapshot 2026-08-21 Open source record Read our complete data methodology →

Estimated Ownership Cost

EPA fuel economy ratings and annual operating cost estimates

Data: US EPA Fuel Economy Guide · snapshot Aug 21, 2026
Supported range: 1,000–60,000 miles per year
Supported range: $1.50–$10.00 per gallon
55% city45% highway
Estimate unavailable

EPA fuel-economy data is unavailable for this vehicle.

No estimate is shown when required EPA values are unavailable.

 Open Ownership Cost Calculator →

Adjacent Model Years

Immediate preceding and succeeding model year records

NHTSA Consumer Complaints Snapshot 2026-08-21 Open source record Read our complete data methodology →

Complaint counts reflect self-selected reports and are not normalised for production sales volume. We publish no reliability scores, superlatives, or vehicle rankings.

Methodology & Data Integrity

Data sourced from NHTSA Office of Defects Investigation. Snapshot date: 2026-08-21.

Read our complete data methodology → Sources