2007 Hummer H3 Owner's Manual - Page 89

Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment. At times you may notice a decrease in operating range. This is normal for any RKE system. If the transmitter does not work or if you have to stand closer to your vehicle for the transmitter to work, try this: • Check the distance. You may be too far from your vehicle. You may need to stand closer during rainy or snowy weather. • Check the location. Other vehicles or objects may be blocking the signal. Take a few steps to the left or right, hold the transmitter higher, and try again. • Check to determine if battery replacement is necessary. See "Battery Replacement" under Remote Keyless Entry (RKE) System Operation on page 89. • If you are still having trouble, see your dealer or a qualified technician for service. Remote Keyless Entry (RKE) System Operation You can lock and unlock the vehicle's doors and disarm or arm the theft-deterrent system from about 3 feet (1 m) up to 30 feet (9 m) away using the remote keyless entry transmitter. See Content Theft-Deterrent on page 98 for additional information. UNLOCK: Press this button to unlock the driver's door and turn on the interior lamps. The parking lamps may also flash, and the horn may chirp, when this button is pressed. Press the unlock button again within three seconds and all of the doors will unlock. 89