Mercury Grand Marquis owners have reported 2 problems related to steering anti-theft device (under the steering 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.
Sometimes when turning steering wheel steering gets locked into place. Mechanic told consumer there was too much pressure coming from steering wheel locking system. In an emergency won't be able to start car.
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Sometimes while turning steering wheel will get locked into place. Consumer feels this happens because there is too much pressure coming from steering wheel locking system.