OEM 2007 Buick Lucerne Turn Signal Switch

2007 Buick Lucerne Turn Signal Switch Parts and Q&A

• Q: How to replace the Turn Signal Switch on 2007 Buick Lucerne?

  A: First disable the SIR system by following the correct procedure. Take off the steering column trim panels and keep track of the connector emerging from the abrasion sleeve of the stern column wire harness. First remove the wire harness strap bindings and detach the wire harness assembly from it.Disconnect the turn signal and multifunction switch assembly from its connection to the SIR system coil. To detach the system safely precede removing the two connectors from the bulkhead connector and taking out the two pan head tapping screws from the Turn Signal and Multifunction Switch Assembly. Install the Turn Signal and Multifunction Switch Assembly on top of the Steering Column Tilt Head by setting its electrical contact against the Turn Signal Cancel Cam. Attach the two screws (Pan Head Tapping Screw) by fitting them first then tightening the top screw to 3 Nmtorque while adjusting the side screw to 7 N.mtorque. Insert both turn signal and multifunction switch assembly connectors into bulkhead connector space and join the connectors to SIR coil interface. Fit the steering column wire harness assembly back into place while making sure both metal pins belong to the ignition cylinder case wires and their connector. Install the wire harness assembly into the wire harness strap while putting back upper and lower trim pieces before enabling the SIR system.