2004 Chevrolet Avalanche Owner's Manual - Page 77

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 You can lock and unlock your doors from about 3 feet (1 m) up to 100 feet (30 m) away using the remote keyless entry transmitter supplied with your vehicle. • 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. K (Unlock): Pressing this button once will unlock the driver's door. The interior lamps will come on. Pressing unlock again within three seconds will cause the remaining doors to unlock. • Check to determine if battery replacement is necessary. See "Battery Replacement" under Remote Keyless Entry System Operation on page 2-5. • If you are still having trouble, see your dealer or a qualified technician for service. 2-5