2004 Hummer H2 Owner's Manual - Page 92

To use one of the locks, do the following: 1. Open one of the rear doors. 2. Turn the lock counterclockwise with your ignition key to engage the rear door security lock. The rear doors or your vehicle cannot be opened from the inside when this feature is in use. If you want to open the rear door while the security lock is engaged, unlock the door and open the door from the outside. To disengage the child security lock feature, turn the lock clockwise with your ignition key. Lockout Protection This feature protects you from locking your key in the vehicle when the key is in the ignition and a door is open. If the power lock switch is pressed when a door is open and the key is in the ignition, all of the doors will lock and then the driver's door will unlock. 3. Close the door. 4. Do the same thing to the other rear door. 2-12