A spring in the seat belt buckle may wear or fail, causing the airbag light on the instrument panel to illuminate. Failed buckles will require replacement.
Car Problem Reports
Mercury Grand Marquis Spring in Seat Belt Buckle May Fail
Mercury Grand Marquis Problem
Average Mileage: 68,250 mi (22,000 mi - 127,084 mi)
Visitor, 2006 Mercury Grand Marquis, 36,000 mi
seatbelt airbag light on - dealer replaced pretensioner ~ $60 but light and beep continued - ran another check - whole seatbelt assembly had to be replaced - part $356 labor $254 (3 hours) 1st and hopefully only big issue I have had with this car.
Visitor, 2006 Mercury Grand Marquis, 99,685 mi
I too have the airbag light on. I counted the flashes and it is code 33.
Visitor, 2005 Mercury Grand Marquis, 106,500 mi
2 of my 2005 Grand Marquis' seat belt buckles have failed.
Visitor, 2007 Mercury Grand Marquis, 90,000 mi
Air bag light blinks and then stays on. Blinks appear to be 33
Just noticed it, no fix to date.
Visitor, 2006 Mercury Grand Marquis, 68,000 mi
Air bag light on, some beaping. Dealer says it's the seat belt assembly, will cost about, $500.00 to fix.
Visitor, 2005 Mercury Grand Marquis, 30,000 mi
I had a problem with my air bag light on the instrument panel staying on all the time. I went to my garage and they had to replace both the right and left side belts. My car only has 30,000 miles on it and it does not seem as if this should have occurred for this short time.
airbag light on dash
Test found seat belt buckle and seat belt module INOP. I was charged over $600 at the dealership in Nazareth Pa. for new parts and labor. Then 3 days later the air bag light came on again. They now say it is the other passenger seat belt and they are charging me an additional $400 plus to repair it.
Visitor, 2005 Mercury Grand Marquis, 127,084 mi
I own a 2005 Mercury Gran Marquis. The Air Bag Warning Light illuminated once the engine was started and remained on. The vehicle was taken to the local Ford dealer service department for diagnosis and I was informed that the driver's side seatbelt pretensioner would need to be replaced at a cost of $501 in addition to the $103 charged for diagnosis. The vehicle has not yet been repaired. I will inform the manufacturer. I observe from other websites/reports what I believe may be a pattern of premature failure of Gran Marquis seatbelt pretensioners especially in the 2005 model year. The failure mileage was 127,084 and the current mileage was 127,201.
Visitor, 2005 Mercury Grand Marquis, 83,250 mi
Air bag light glows dim and flashes 3 times twice.Arranging to have buckle replaced.