Buick 15242754 Switch,Ignition & Start

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To remove the ignition switch and ignition lock cylinder, start by disconnecting the negative battery cable. Then, remove the steering column covers and the Electronic Park Lock switch. Next, install the key into the lock and rotate it clockwise to the Run position. Push in the retainer pin and pull the key and the ignition lock cylinder from the ignition switch/lock cylinder housing. If equipped, slide the theft deterrent control module off the ignition lock cylinder barrel. Disconnect the multi-terminal connector and the two single wire connectors. If the ignition lock cylinder has not been removed, remove it now. Insert a special forked tool into the release tabs on the ignition switch/ignition lock cylinder housing to release the ignition switch. Take note of the gear positions on the new ignition switch and ensure they are correctly aligned with the ignition lock cylinder housing. For installation, use a screwdriver to rotate the lock cylinder gear counterclockwise until it hits the stop, which is the ignition switch install position. Insert the ignition switch into the ignition lock cylinder housing, ensuring the tabs align with the slots in the housing. Use a screwdriver to rotate the lock cylinder gear clockwise until it reaches the Start position, then release it into the Run position. Install the ignition lock cylinder and then proceed with the reverse of the removal steps for the remainder of the installation process.

To remove the ignition switch and ignition lock cylinder, start by disconnecting the negative battery cable. Then, remove the steering column covers and the Electronic Park Lock switch. Next, install the key into the lock and rotate it clockwise to the Run position. Push in the retainer pin and pull the key and the ignition lock cylinder from the ignition switch/lock cylinder housing. If equipped, slide the theft deterrent control module off the ignition lock cylinder barrel. Disconnect the multi-terminal connector and the two single wire connectors. If the ignition lock cylinder has not been removed, remove it now. Insert a special forked tool into the release tabs on the ignition switch/ignition lock cylinder housing to release the ignition switch. Take note of the gear positions on the new ignition switch and ensure they are correctly aligned with the ignition lock cylinder housing. For installation, use a screwdriver to rotate the lock cylinder gear counterclockwise until it hits the stop, which is the ignition switch install position. Insert the ignition switch into the ignition lock cylinder housing, ensuring the tabs align with the slots in the housing. Use a screwdriver to rotate the lock cylinder gear clockwise until it reaches the Start position, then release it into the Run position. Install the ignition lock cylinder and then proceed with the reverse of the removal steps for the remainder of the installation process.

Cut any cable ties securing the ignition switch wiring harness to the multi-function switch wiring harness and remove the bolt securing the ignition switch and multi-function switch electrical connectors. On early models, separate the ignition switch electrical connector from the turn signal and multi-function switch connectors. Disconnect the small electrical connector and the key alarm connector from the lock module assembly.

Disconnect the electrical connectors from the module, key alarm buzzer, and ignition switch.

The remainder of installation is the reverse of removal.