2003 Buick Century Owner's Manual - Page 80

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. 2. Remove the old battery, do not use a metal object to do this. Replace it with the new one. Use type CR2032 or an equivalent. Make sure the positive (+) side of the battery is facing down. 3. Snap the top and bottom together, making sure the halves are together tightly so water won't get in. I I 4. Resynchronize and test the operation of the transmitter with your vehicle. Resynchronization After you have changed the battery in your transmitter, you will need to resynchronize the transmitter. To do this, press the LOCK and UNLOCK buttons at the same time and hold for approximately seven seconds or until one horn chirp is heard. I To replace the battery do the following: 1. Insert a flat object like a thin coin into the slot on the back of the transmitter. Gently pry apart the front and back. 2-9