Mercury Grand Marquis owners have reported 1 problem related to fail to slow down (under the vehicle speed control category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Grand Marquis based on all problems reported for the Grand Marquis.
Tl-the contact owns a 2003 Mercury Grand Marquis. The contact started the ignition with the brake pedal depressed and suddenly the vehicle unintendedly accelerated when the gear lever was shifted in drive. The brake pedal was engaged numerous times and the vehicle failed to slow down and crashed into the nearby garage and also crashed into a parked vehicle. A police report was filed of the incident. The driver sustained injury to the left knee. The vehicle was completely destroyed and towed to an authorized dealer. The manufacturer was not notified of the unintended acceleration malfunction. The approximate failure mileage was 100,000. The VIN was unavailable. Js.
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