The Office of Defects Investigations (ODI) is an office within the NHTSA which investigates serious safety problems in the design, construction or performance of vehicles. The NHTSA is authorized to order manufacturers to recall and repair vehicles, if the ODI finds a safety issue. NHTSA investigations for the 1997 Mercury Grand Marquis, both ongoing and closed, are listed below:

  1. INVESTIGATION: SPEED CONTROL DEACTIVATION SWITCH FIRES

    NHTSA #EA02025

    Status:
    CLOSED

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  2. INVESTIGATION: SPARK PLUG EJECTION FROM CYLINDER HEAD

    NHTSA #DP05005

    Status:
    CLOSED

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  4. INVESTIGATION: POST REAR END COLLISION FIRES

    NHTSA #SQ01014

    Status:
    RECALLED

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  5. INVESTIGATION: REAR BRAKE LINE FAILURE

    NHTSA #EA03012

    Status:
    RECALLED

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  6. INVESTIGATION: REAR BRAKE LINE FAILURE

    NHTSA #RQ03004

    Status:
    CLOSED

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  7. INVESTIGATION: BALL JOINT SEPARATION

    NHTSA #RQ03002

    Status:
    CLOSED

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  8. INVESTIGATION: FUEL-FED FIRES

    NHTSA #DP02007

    Status:
    CLOSED

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