2007 GMC Yukon Owner's Manual - Page 122

Rear Door Security Locks Your vehicle has rear door security locks. These prevent passengers from opening the rear doors from the inside. The rear door security locks are located on the inside edge of each rear door. You must open the rear doors to access them. The label depicting lock and unlock positions is located near the lock. Security Lock Label shown When you want to open a rear door when the security lock is on, do the following: 1. Unlock the door using the remote keyless entry transmitter, if the vehicle has one, the power door lock switch, or by lifting the rear door manual lock. 2. Open the door from the outside. To cancel the rear door security lock, do the following: 1. Unlock the door and open it from the outside. 2. Insert the key into the security lock slot and turn it so the slot is in the vertical position. Lockout Protection This feature protects you from locking the key in the vehicle when the key is in the ignition and a front door is open. If the driver's side power door lock switch is pressed when the driver's door is open and the key is in the ignition, all of the doors will lock and then the driver's door will unlock. To set the locks, do the following: 1. Insert the key into the security lock slot and turn it so the slot is in the horizontal position. 2. Close the door. 122