1998 Chevrolet Cavalier Owner's Manual - Page 85

Battery Replacement Under normal use, the battery in your remote keyless entry transmitter should last about two years. Replacing the Battery in the Keyless Entry System Transmitter You can tell the battery is weak if the transmitter won't work at thenormal 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 in the transmitter: 1. Use a small coin or flathead screwdriver to separate the bottom half from the top half of the transmitter. 2. Remove the battery and replace it with the new one. Make sure the positive (+) side of the battery faces down. For battery replacement, use a 3-volt battery, type CR2032, or equivalent. 3. Read the instructions inside the case. 2-9