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Backup Lamp Bulb Replacement

WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Backup Lamp Bulb & Socket
GM2893867Courtesy of GENERAL MOTORS COMPANY
Backup Lamp Bulb Replacement

Callout Component Name
1 Backup Lamp Bulb Socket
Procedure 
Rotate the backup lamp socket counterclockwise and remove the backup lamp socket from the backup lamp housing.
2 Backup Lamp Bulb
Procedure 
Hold the backup lamp socket and pull the backup lamp bulb straight out of the backup lamp socket to remove.