2003 Buick LeSabre Owner's Manual - Page 79

Battery Replacement Under normal use, the battery in your remote keyless entry transmitter should last about four years. You can tell the battery is weak if the transmitter won't work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it's probably time to change the battery. Notice: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. To replace the battery, do the following: 1. Insert a coin, or similar object, into the notch near the key ring. Turn it counterclockwiseto 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 as the instructions inside the cover indicate. Use one Duracell@ battery, type DL-2032, or a similar type. 4. Snap the transmitter back together tightly to be sure no moisture can enter. 5. Check the operation of the transmitter 2-8