Operation CHARM: Car repair manuals for everyone.

Shift/Ignition Interlock

COLUMN SHIFT
If the interlock cable breaks while the shifter is in the park position, the shifter will remain in park. Should the interlock cable break when the shifter is in neutral, the operator won't be able to shift to park. In either case, replace and adjust the interlock cassette or interlock cable.

FLOOR SHIFT
1. With the floor shifter in Park, place the ignition key in the Lock position. The operator should not be able to remove the shifter from Park (button on shifter won't depress) when the ignition key is in the Lock position.
2. Turn the ignition key to the Run position. With the ignition key in the Off or Run position, the operator should be able to shift into any gear position. With the shifter in a gear selection other than park, the operator should not be able to remove the ignition key.
3. Return the shifter to the Park position. The operator should be able to remove the key after placing it in the Lock position.
4. If the interlock system does not work as described in the above steps, check the system for incorrect adjustment or a binding cable. Refer to the Adjustment procedure or the Removal procedure as necessary.