Vehicle Data Hub

2005 Mercury Grand Marquis electrical system problems

76 complaints about electrical system have been filed for the 2005 Mercury Grand Marquis, which is 12% of all its NHTSA complaints. It is the 2nd most reported problem area for this model year.

At a glance

Complaints
76 12% of this year's complaints
Typical mileage
74,000 miles 61 complaints with mileage
Crashes and fires
4 and 4
Injuries and deaths
3 and 0

Source: NHTSA owner complaints

When electrical system problems show up

Electrical system complaints by mileage, 2005 Mercury Grand Marquis Complaints by odometer reading in 20,000-mile steps. The median is about 74,000 miles. 0k to 20k miles: 5 complaints 20k to 40k miles: 5 complaints 40k to 60k miles: 15 complaints 60k to 80k miles: 13 complaints 80k to 100k miles: 11 complaints 100k to 120k miles: 7 complaints 120k to 140k miles: 1 complaints 140k to 160k miles: 3 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 1 complaints 040k80k120k160k200k miles Typical: 74,000 miles
Based on 61 complaints that include mileage. 41% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles5
20k to 40k miles5
40k to 60k miles15
60k to 80k miles13
80k to 100k miles11
100k to 120k miles7
120k to 140k miles1
140k to 160k miles3
160k to 180k miles0
180k to 200k miles0
200k+ miles1

What the data shows

Of the 61 electrical system complaints that report mileage, the median is about 74,000 miles, and 41% were reported before 60,000 miles.

These complaints mention 4 crashes, 4 fires, 3 injuries.

What owners wrote

Upon starting up 2005 mercury marquis (~24000 miles) and placing car into drive, car accelerated at a high rate of speed and crashed into a gas station pump. The car accelerator malfunctioned and was in a "jammed state". The driver immediately put right foot then both feet on brake trying to get the vehicle to stop. The car would not slow much less stop. Driver suffered very serious eye injury and currently has no sight in injured left eye. There is the risk of losing left eye.

January 2012 CrashFireInjury

Tl* the contact owns a 2005 mercury grand marquis. While driving approximately 60 MPH, the exterior lighting, dome light, and all other lighting turned off without warning. The vehicle was taken to an independent mechanic who changed all the fuses, but the failure recurred. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

Reported at 130,000 miles, May 2019

Other problems reported for the 2005 Mercury Grand Marquis

Electrical system problems in other years

Electrical system problems across all Mercury models