2004 Mercury Grand Marquis electrical system problems
The 2004 Mercury Grand Marquis has 40 electrical system complaints filed with NHTSA — 9% of the year's total, and roughly flat versus the prior model year.
40
Electrical System complaints
9%
Share of year
1
Crash-involved
0
Related recalls
Electrical System complaints by year
What owners report
“TL*THE CONTACT OWNS A 2004 MERCURY GRAND MARQUIS. WHILE DRIVING 50 MPH, THE CONTACT SMELLED A BURNING ODOR AND NOTICED SMOKE COMING FROM THE LIGHTING CONTROL MODULE. HE PULLED THE VEHICLE OVER AND OPENED THE HOOD. THE HORN BEGAN TO SOUND, SO HE DISCONNECTED THE BATTERY. THE FIRE DEPARTMENT ARRIVED…”
Common questions
How many electrical system complaints does the 2004 Mercury Grand Marquis have?
NHTSA has 40 complaints about the 2004 Mercury Grand Marquis electrical system — 9% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.