Ignition Key Cannot Be Removed from the Ignition Lock Cylinder

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
1	Did you review the Steering Wheel and Column Description and Operation?	Go to Step 2	Go to Steering Wheel and Column Description and Operation
2	Verify that the key cannot be removed from the lock cylinder in the OFF position. Does the lock system operate normally?	System OK	Go to Step 3
3	Inspect for incorrect, worn, or damaged key. Is the key incorrect, worn, or damaged?	Go to Step 5	Go to Step 4
4	Inspect for a faulty lock cylinder or release button. Is the lock cylinder or release button damaged?	Go to Step 6	Go to Step 3
5	Replace the key. Refer to Key and Lock Cylinder Coding . Did you complete the repair?	Go to Step 7	-
6	Replace the lock cylinder. Refer to Ignition Lock Cylinder Replacement . Did you complete the repair?	Go to Step 7	-
7	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3