1992 Mercury Grand Marquis electrical system problems

The 1992 Mercury Grand Marquis has 47 electrical system complaints filed with NHTSA — 14% of the year's total, and up sharply from the prior model year.

Electrical System complaints

14%

Share of year

Crash-involved

Related recalls

Electrical System complaints by year

Grand Marquis electrical system complaints by model year. Red bars are years to avoid.

Related recalls

99V124000Electrical SystemMay 19, 1999 · 262,695 units

Defect

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE SPEED CONTROL DEACTIVATION SWITCH CAN DEVELOP A RESISTIVE SHORT IN THE ELECTRICAL CIRCUIT THAT COULD POTENTIALLY RESULT IN AN UNDERHOOD FIRE. A FIRE IS POSSIBLE BOTH WHEN THE VEHICLE IS RUNNING AND WHEN THE VEHICLE ENGINE IS OFF. ALSO, THE SHORT COULD DISABLE THE SPEED CONTROL SYSTEM OR CAUSE THE BRAKE LIGHT FUSE TO OPEN.

Consequence

A FIRE CAN ORIGINATE IN THE LEFT FRONT UNDERHOOD AREA.

Remedy

DEALERS WILL INSTALL A NEW SPEED CONTROL DEACTIVATION SWITCH AND CONNECTOR SHELL. OWNER NOTIFICATION BEGAN MAY 20, 1999.

What owners report

“THE CONSUMER HAS EXPERIENCED PROBLEMS WITH ALTERNATOR WIRES. ONE OF WIRES IN THE ALTERNATOR STARTED THE FIRE. THE FIRE DEPARTMENT PUT THE FIRE OUT. THE FIRE OCCURRED AFTER THE CONSUMER HAD PARKED VEHICLE. THE MANUFACTURER HAS NOT BEEN CONTACTED. *AK *ML”
Complaint filed with NHTSA · Electrical System · September 13, 1998 · fire

Common questions

How many electrical system complaints does the 1992 Mercury Grand Marquis have?

NHTSA has 47 complaints about the 1992 Mercury Grand Marquis electrical system — 14% of all complaints filed for that model year.

Are there recalls for the 1992 Mercury Grand Marquis electrical system?

Yes — 1 NHTSA recall campaign for this model year is tied to the electrical system: 99V124000.

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.