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 1991 Pontiac Grand Prix, both ongoing and closed, are listed below:

1. INVESTIGATION: ENGINE CRADLE SEPARATION

   NHTSA #EA00011

   Status:

   RECALLED

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2. INVESTIGATION: JACK FAILURE

   NHTSA #EA91049

   Status:

   CLOSED

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4. INVESTIGATION: CORRODED REAR DISK BRAKES

   NHTSA #PE94063

   Status:

   CLOSED

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5. INVESTIGATION: STEERING WHEEL SEPARATION

   NHTSA #PE91072

   Status:

   CLOSED

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6. INVESTIGATION: STRUCTURE

   NHTSA #RP01001

   Status:

   RECALLED

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7. INVESTIGATION: CRADLE BOLT FAILURES

   NHTSA #RQ97017

   Status:

   PENDING

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8. INVESTIGATION: STICKING THROTTLE

   NHTSA #EA92024

   Status:

   CLOSED

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