GM Service Manual Online
For 1990-2009 cars only

No Park

Checks

Causes

Parking Lock Actuator Assembly (807)

    • Bent or damaged rod
    • Binding or broken spring
    • The rod is not attached to the detent lever

Detent Roller and Spring (804)

    • The bolt is not torqued, or loose
    • Bent or damaged

Detent Lever (806)

    • Damaged or loose
    • A manual shaft pin is missing

Manual Valve (800)

    • Misaligned
    • The manual valve to detent lever link is bent

Parking Lock Pawl (663)

    • Damaged
    • Broken tooth

Park Lock Gear (659)

    • Damaged teeth
    • Damaged splines

Park Pawl Spring (662)

Broken or missing

Shift Linkage

Misadjusted