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 1999 Chevrolet Silverado, both ongoing and closed, are listed below:

1. INVESTIGATION: TAILGATE SUPPORT CABLES

   NHTSA #EA05007

   Status:

   RECALLED

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2. INVESTIGATION: TAILGATE SUPPORT CABLE BREAKAGE

   NHTSA #RQ04010

   Status:

   CLOSED

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4. INVESTIGATION: TAILGATE CABLE BREAKAGE

   NHTSA #EA04005

   Status:

   RECALLED

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5. INVESTIGATION: TAILGATE CABLE BREAKAGE

   NHTSA #PE03049

   Status:

   CLOSED

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6. INVESTIGATION: PARKING BRAKE FAILURE

   NHTSA #PE03057

   Status:

   CLOSED

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7. INVESTIGATION: PARKING BRAKE FAILURE

   NHTSA #DP05009

   Status:

   CLOSED

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8. INVESTIGATION: PARKING BRAKE FAILURE

   NHTSA #EA04011

   Status:

   RECALLED

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9. INVESTIGATION: Brake line corrosion failure

   NHTSA #PE10010

   Status:

   CLOSED

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10. INVESTIGATION: UNWANTED LOW-SPEED ABS ACTIVATION

    NHTSA #PE05020

    Status:

    RECALLED

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11. INVESTIGATION: Brake line corrosion failure

    NHTSA #EA11001

    Status:

    CLOSED

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12. INVESTIGATION: STEERING GEAR/GRAME ATTACHING BOLTS

    NHTSA #RQ99005

    Status:

    RECALLED

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13. INVESTIGATION: THROTTLE STICKING CLOSED

    NHTSA #EA02015

    Status:

    CLOSED

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14. INVESTIGATION: THROTTLE STICKING

    NHTSA #PE02021

    Status:

    CLOSED

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15. INVESTIGATION: STEEL WHEEL RIM FRACTURE

    NHTSA #PE03026

    Status:

    CLOSED

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