2007 Hummer H3 Owner's Manual - Page 90

LOCK: Press this button to lock all the doors. The parking lamps may also flash and the horn may chirp when this button is pressed. If a door is open or ajar when the lock button is pressed, the doors will lock, but the theft-deterrent system will not arm until the open door is closed. You can program different feedback modes through the Driver Information Center (DIC). To program the feedback modes, see "Remote Keyless Entry Feedback" under DIC Controls and Displays on page 192. Matching Transmitter(s) to Your Vehicle Each remote keyless entry transmitter is coded to prevent another transmitter from unlocking your vehicle. If a transmitter is lost or stolen, a replacement can be purchased through your dealer. Remember to bring any remaining transmitters with you when you go to your dealer. When the dealer matches the replacement transmitter to your vehicle, any remaining transmitters must also be matched. Once your dealer has coded the new transmitter, the lost transmitter will not unlock your vehicle. Each vehicle can have a maximum of four transmitters matched to it. L (Panic): Press this button to make the horn sound and the headlamps and taillamps flash for up to 30 seconds. To turn them off, do one of these three things: wait for 30 seconds; press the panic button again; or start the vehicle. 90