The contact owns a 2008 Mercury Grand Marquis. The contact stated that the wiring harness for the brake pedal sensor was faulty, causing the exterior brake lights to fail to illuminate. The failure almost caused a collision. The dealer was made aware of the failure and informed the contact to bring the vehicle in to be diagnosed. The vehicle was not diagnosed nor repaired by an independent mechani…
2008 Mercury Grand Marquis lighting problems
moderate 3 complaints filed with NHTSA · avg repair $250
Complaints
3
Recalls
0
Crashes
0
Avg fix
$250
What owners are reporting 1 most recent
Common questions
How serious is the lighting problem on the 2008 Mercury Grand Marquis?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $250 and most owners catch it before it causes a breakdown.
At what mileage does the lighting typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $250 for lighting repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to lighting?
No active recalls currently cover lighting issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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