Key will not turn in ignition switch

[ingydrummer]

jsbihn, I looked under the column at the bottom cover and there are holes but there are not any screw heads in there just empty space? About the tilt knob, does this just pull out of the column or is it attached another way?

[ingydrummer]

I have everything apart and I still can't get this key to turn in the ignition. I start my vacation today and now Im screwed cause I have no way of driving anywhere. Any other suggestion's?

[HUMTECH]

Well sounds like the lock cylinder has fallen apart, does it feel rough when you put the key in? You can try to force it to turn. Put the key in and if I remember right should be able to get vice grips on outside edge of cylinder. Get them real tight and try to force it to rotate. Or cut a v notch in end of cylinder and use a chisel and hammer to try and force it around. If it goes then you will be able to remove ignition cylinder from housing and get a new one. Any gm dealer can supply and code a new one for you so original keys will work.

[HUMTECH]

Ignition Lock Cylinder Replacement
Removal Procedure

Object ID: 375970Click here for detailed picture of the image.

Caution: Refer to Battery Disconnect Caution in Cautions and Notices.

 1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
Caution: Refer to SIR Caution in Cautions and Notices.

 2. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
 3. Turn the ignition lock cylinder to the start position.
Important: In order to remove the upper trim cover and lock cylinder you will need to release the lock cylinder retaining pin in the access hole of the ignition lock cylinder case.

 4. Remove the steering column trim covers. Refer to Steering Column Trim Cover Replacement.
Gently lift the upper trim cover so you may Insert the tip of an awl into the access hole (1) of the ignition lock cylinder case.

 5. Push down and hold the retaining pin of the ignition lock cylinder.
 6. Release the ignition lock cylinder to the run position.
Object ID: 375305Click here for detailed picture of the image.

 7. Remove the ignition lock cylinder by pulling the cylinder away from the steering column.
Installation Procedure

Object ID: 375309Click here for detailed picture of the image.

 1. Install the steering column trim covers. Refer to Steering Column Trim Cover Replacement.
 2. Install the ignition lock cylinder by performing the following procedure:
2.1. Align the positioning locking tab slot on the ignition lock cylinder case to the positioning tab on the ignition lock cylinder.
2.2. Push the lock cylinder in until the tab locks in the ignition lock cylinder case.
 3. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.
 4. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
 5. Perform the Passlock learn procedure. Refer to Programming Theft Deterrent System Components in Theft Deterrent.

[HUMTECH]

Programming Theft Deterrent System Components
Programming Replacement Passlock? Sensor, BCM, or PCM
Important:

?The body control module (BCM) must be programmed with the proper RPO configurations before performing learn procedures. See Body Control Module (BCM) Programming/RPO Configuration.
?If replacing the BCM with a GM Service Parts Operations (SPO) replacement part, the module will learn passlock? sensor data code immediately. The existing PCM however, must learn the new fuel continue password when the BCM is replaced.
?If replacing a PCM with a GM Service Parts Operations (SPO) replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn the current vehicle's password.
Conditions
Use this procedure after replacing:

?Passlock? Sensor
?BCM
?PCM
Learn Procedures
There are two available methods to perform the programming procedure:

?A 10 minutes procedure which requires a Tech 2 and a techline terminal.
?A 30 minutes procedure which does not require the use of any tools.
10 Minute Learn Procedure
Tools Required
?Tech 2
?Techline terminal with current Service Programming System (SPS) software
 1. Connect the Tech 2 to the vehicle.
 2. Select ?Request Information? under ?Service Programming?.
 3. Disconnect the Tech 2 from the vehicle and connect it to a techline terminal.
 4. On the techline terminal, select ?Theft Module Re-Learn? under ?Service Programming?.
 5. Disconnect the Tech 2 from the techline terminal and connect it to the vehicle.
 6. Turn ON the ignition, with the engine OFF.
 7. Select ?VTD Re-Learn? under ?Service Programming?.
 8. Attempt to start the engine, then release the key to ON, vehicle will not start.
 9. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF, the vehicle is now ready to relearn the Passlock? Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK.
10. Turn OFF the ignition, and wait 5 seconds.
11. Start the engine, the vehicle has now learned the password.
12. With the Tech 2 scan tool, clear any DTCs.
30 Minute Learn Procedure
 1. Turn ON the ignition, with the engine OFF.
 2. Attempt to start the engine, then release the key to ON, vehicle will not start.
 3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
 4. Turn OFF the ignition, and wait 5 seconds.
 5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes, the vehicle is now ready to relearn the Passlock? Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
Important: The vehicle learns the Passlock? Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

 6. Start the engine. The vehicle has now learned the Passlock? Sensor Data Code and/or password.
 7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles.