1997 Buick Regal Owner's Manual - Page 86

This system has a range of about 3 feet (I m) up to 30 feet (9 m). 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 transmitter to the work, try this: 0 Operation Press UNLOCK once to unlock the driver's door and to turn the interior lamps on (see "Illumination on Remote Activation" in the Index for more details). Press UNLOCK again within five seconds to unlock all the doors. Check to determine if battery replacement is necessary. See the instructions that follow. 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. If you're still having trouble, see your Buick dealer or a qualified technician for service. To lock all doors, press LOCK. To unlock the trunk, press the trunk symbol on the remote keyless entry transmitter. The trunk will only unlock if your transaxle is in PARK (P). 2-10