1. Open the key fob case. 
2. Remove the old battery carefully. 
3. Press both of the buttons one at a time for at least 10 seconds. 
4. Fit the new battery, positive "+" side facing upwards. 
5. Reassemble the two halves of the key fob. 
6. Press the lock button (the right hand button) 4 to 8 times next to the vehicle the press the left hand button once.
                
 James Mac
                
 June 2007