Lock System Does Not Lock
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Lock System Does Not Lock
| Step | Action | Yes | No |
|---|---|---|---|
| DEFINITION: The lock system will not allow the key to be turned to the OFF lock position. | |||
| 1 | Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Steering Wheel and Column |
| 2 | Verify that the lock system does not lock. Does the lock system operate normally? |
System OK | Go to Step 3 |
| 3 | Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged? |
Go to Step 7 | Go to Step 4 |
| 4 | Inspect the shift linkage adjustment. Is the shift linkage adjusted incorrectly? |
Go to Step 8 | Go to Step 5 |
| 5 | Inspect the ignition switch for damage. Is the ignition switch damaged? |
Go to Step 9 | Go to Step 6 |
| 6 | Inspect the a linear shift for damage. Is the automatic shift lock control damaged? |
Go to Step 10 | Go to Step 7 |
| 7 | Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement - On Vehicle . Did you complete the repair? |
Go to Step 11 | - |
| 8 | Adjust the shift linkage. Did you complete the repair? |
Go to Step 11 | - |
| 9 | Replace the ignition switch. Refer to Ignition Switch Replacement - On Vehicle . Did you complete the repair? |
Go to Step 11 | - |
| 10 | Replace the linear shift assembly. Refer to Linear Shift Assembly Replacement - On Vehicle . Did you complete the repair? |
Go to Step 11 | - |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |