2001 Buick LeSabre Owner's Manual - Page 80

To replace the battery, do the following: 1. Insert a coin into the notch near the key ring. Turn the coin counterclockwise to separate the two halves of the transmitter. 2. Once the transmitter is separated, use a pencil eraser to remove the old battery. Do not use a metal object. 3. Remove and replace the battery. Replace it as the instructions inside the cover indicate. 4. Snap the transmitter back together tightly to be sure no moisture can enter. 5. Check the operation of the transmitter. For battery replacement, use one DuracellR battery, type DL-2032, or a similar type. 2-15