One problem related to brake pedal and linkage has been reported for the 2005 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Grand Marquis based on all problems reported for the 2005 Grand Marquis.
: the contact stated while backing out of a parking space at 5 mph, the brake pedal was depressed and the vehicle surged in reverse. The contact shifted into neutral, the engine revved, and the tachometer rose quickly. The vehicle was taken to a service dealer, where the dealer was unable to duplicate or determine the problem. The dealer told the consumer, the incident was due to driver error and when she applied the brake she inadvertently pressed the accelerator as well. Updated 09/11/06.