Hummer 89022365 Ignition Lock Cylinder

To remove the ignition lock cylinder, start by disconnecting the negative battery cable and removing the steering column covers. Then, remove the Park lock switch and slide off the theft deterrent control module if applicable. Next, place the key in the lock and rotate it clockwise to the Accessory position. Push in the retainer pin and pull out the key and ignition lock cylinder from the housing. To replace the ignition lock/switch housing, remove the multi-function switch/airbag coil and its mounting plate from the column. Remove the shear bolt from the ignition switch housing by drilling a hole in the center and using a screw extractor. If you only need to remove the electrical portion of the ignition switch, disconnect the electrical connector and remove the switch. To install the ignition lock cylinder, align the retainer with the slot in the housing and push it in until it snaps into position. When installing the new shear bolt, tighten it until the shear head breaks off. Finally, reverse the steps for reinstallation.