Ignition Key Cannot Be Inserted, Rotated, or Removed from the Ignition Lock Cylinder
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Ignition Key Cannot Be Inserted, Rotated, or Removed from the Ignition Lock Cylinder
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
|
Go to Step 4 | Go to Step 2 |
| 2 | Verify the ignition key cannot be turned to the OFF position. Can the ignition key be turned to the OFF position? |
Go to Step 3 | Go to Step 7 |
| 3 | Verify the ignition key cannot be removed from the ignition lock cylinder. Can the ignition key be removed from the ignition lock cylinder? |
Go to Step 7 | Go to Step 9 |
| 4 | Verify the ignition key cannot be fully inserted and rotated without sticking in any position. Can the ignition key be fully inserted into the ignition lock cylinder and be rotated without sticking in any position? |
Go to Step 7 | Go to Step 5 |
| 5 | Inspect for an incorrect, worn, or damaged ignition key. Is the ignition key incorrect, worn, or damaged? |
Go to Step 10 | Go to Step 6 |
| 6 | Inspect the ignition key. Clean the entire middle groove area of the side milled ignition key. Can the cleaned key be fully inserted into the ignition lock cylinder and be rotated without sticking in any position? |
Go to Step 11 | Go to Step 10 |
| 7 | Verify the adjustment of the shift control cable. Refer to Range Selector Lever Cable Adjustment
, for the 2ML70 transmission or Range Selector Lever Cable Adjustment
for the 6L45/6L50/6L80/6L90 transmission. Can the ignition key be turned to the OFF position and be removed? |
Go to Step 12 | Go to Step 8 |
| 8 | Attempt to override the ignition lock solenoid on the ignition and start switch housing. Can the ignition key be turned to the OFF position and be removed? |
Go to Step 9 | Go to Step 11 |
| 9 | Inspect the electrical system for improper operation. Refer to Testing for Intermittent Conditions and Poor Connections . Can the ignition key be turned to the OFF position and be removed? |
Go to Step 12 | Go to Step 11 |
| 10 | Replace the ignition key. Refer to Adding Keys
. Did you complete the repair? |
Go to Step 12 | - |
| 11 | Replace the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement
. Did you complete the repair? |
Go to Step 12 | - |
| 12 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | - |