2004 Chevrolet Aveo Owner's Manual - Page 72

Battery Replacement Under normal use, the battery in your remote keyless entry transmitter should last about two years. You can tell the battery is weak if the LED fails to illuminate or if the transmitter will not work at the normal range in any location. If you have to get close to your vehicle before the transmitter works, it is 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 remote keyless entry transmitter, do the following: 1. Remove the screw from the back of the cover and open the cover of the transmitter. 2. Pull the transmitter out of the cover and carefully detach the sticker from the unit. Keep the sticker clean. 3. Remove the battery and replace it with the new one. Make sure the positive side of the battery faces up. Use one three-volt, CR1620, or equivalent, type battery. 4. Attach the sticker and put the transmitter unit in the cover. 5. Put the two halves back together and replace the screw. Make sure the cover is on tightly, so water will not get in. 6. Test the transmitter operation. 2-6