GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Verify the key cannot be removed from the ignition lock cylinder.

Is the key stuck in the lock cylinder?

Go to Step 2

System OK

2

Is the vehicle equipped with a manual transmission?

Go to Step 5

Go to Step 3

3

Turn the ignition key to the OFF position.

Can the key be turned to the OFF position and be removed?

Go to Step 5

Go to Step 4

4

Verify the adjustment of the automatic transmission park lock cable. Refer to Park Lock Cable Adjustment, Park Lock Cable Adjustment, or Park Lock Cable Adjustment.

Can the key be turned to the OFF Position?

System OK

Go to Step 6

5

Verify the adjustment of the manual transmission park lock cable. Refer to Park Lock Cable Adjustment.

Can the key be turned to the OFF position and be removed?

System OK

Go to Step 6

6

Inspect for a faulty lock cylinder.

Is the lock cylinder damaged?

Go to Step 8

Go to Step 7

7

Inspect the ignition lock cylinder case.

Is the case worn, damaged or loose?

Go to Step 8

Go to Step 9

8

Replace the ignition lock cylinder. Refer to Ignition Switch Lock Cylinder Replacement .

Did you complete the repair?

Go to Step 9

--

9

Operate the system to verify the repair.

Did you correct the condition?

System OK

Go to Step 1