2005 Chevrolet Express Van Owner's Manual - Page 82

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 range. This is normal for any remote keyless entry system. If the transmitter does not work or if you have to stand closer to your vehicle for the transmitter to work, try this: Remote Keyless Entry System Operation Your vehicle may have this feature. Q(Lock): • 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. Press this button once to lock all of the doors. The parking lamps will flash and the interior lamps will turn on briefly. Press the lock button again within five seconds and the parking lamps will flash and the horn will chirp briefly. • Check to determine if battery replacement or resynchronization is necessary. See "Battery Replacement" and "Resynchronization" under Remote Keyless Entry System Operation on page 2-4. W(Unlock): • If you are still having trouble, see your dealer or a qualified technician for service. Press this button once to unlock the driver's door. The parking lamps will flash twice and the interior lamps will turn on. Press the unlock button again within five seconds to unlock the remaining doors. The parking lamps will flash. 2-4