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Q: how to remove and replace key switch on 1995 Pontiac Bonneville

i need to replace the key switch,because the key will not come out of the old one.
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hi, you can do as following, hope help.
Disconnect the negative battery cable by peeling back the insulator and loosening the clamp nut on the cable. Set the disconnected cable where it can't accidentally connect with its battery terminal. Wait at least two minutes for the air bags to be disabled.

Make sure the steering wheel is centered and the tires are facing forward.

Pry out the covers on each side of the wheel.

Remove the airbag by removing its bolts and disconnect all electrical connectors.

Mark the wheel's position to the shaft and remove the wheel's retaining bolt and pull the wheel off the shaft; a two-jaw puller can help.

Remove the covers on the steering column by removing their fasteners and prying them off; remove the lower cover first.

Remove the anti-theft system transceiver by depressing its tab, unplugging the electrical connector and unscrewing its bolt.

Insert your key into the switch and turn it to the "On" position.

Insert a small screwdriver, awl or other rod-like tool into the hole on the lock cylinder's underside to depress the locking pin. Pull the cylinder out of the steering column.

Place the new cylinder into the column--with its key inserted--making sure it's placed in the "On" position within the column. Listen for the locking pin to click into place, then turn the key to "Off."

Re-install all components in the reverse order of installation.

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