2009 Hummer H3 Owner's Manual - Page 72

2-6 Features and Controls Press L (lock) to lock all the doors at once. To unlock all the doors, press U (Unlock). Rear Door Security Locks Each rear door can be locked so it cannot be opened from the inside. Programmable Automatic Door Locks With an automatic transmission, the vehicle is pre-programmed to automatically lock the doors when shifted out of P (Park). All doors unlock when the vehicle is shifted back into P (Park). With a manual transmission, the vehicle is pre-programmed to automatically lock the doors when the vehicle speed reached 15 mph (24 km/h). Removing the key from the ignition unlocks the doors. To program the automatic door locks, see "Automatic Door Locks" under DIC Operation and Displays on page 3-34. From the inside, use the manual lock levers or power door lock switch. Power Door Locks The rear door security lock is located on the inside edge of each rear door. To engage a security lock: 1. Open one of the rear doors. 2. Use the ignition key to turn the lock toward the front of the vehicle. 3. Close the door. 4. Repeat these steps on the other rear door. Driver's side shown The power door lock switches are located on the driver's and the front passenger doors.