general problems of the 2003 Mercury Marquis

Two problems related to vehicle speed control have been reported for the 2003 Mercury Marquis. The most recently reported issues are listed below.

1 Vehicle Speed Control problem

Failure Date: 09/27/2017

In firestone store parking area perpendicular to service for attendant to fill the rt frt tire. Pulled up to attendant , applied brakes and veh surged ahead, struggled to control to no avail. Made diffucult u turn to avoid drv into street traffic, crashed other veh, cont'd on jumping 2 inside pk curbs stopping as frame stopped res on curb.

2 Vehicle Speed Control problem

Failure Date: 03/06/2006

: the contact stated while attempting to apply brake pressure the vehicle accelerated. The dealership was alerted however no repairs have been made. The consumer believed the brake and accelerator were designed too close together. Updated 04/06/06.


Other Vehicle Speed Control related problems of the 2003 Mercury Marquis



Fuel Economy of Marquis Vehicles
Marquis Service Bulletins
Marquis Safety Recalls
Marquis Defect Investigations