Remote Battery Replacement
RANGE ROVER 4.0/4.6When the batteries need replacing, the message center will display 'KEY BATTERY LOW'. To replace:
Remove the battery cover by twisting the cover with a coin.
Taking care not to touch the circuit board, pry the batteries from the cover and install new ones (with the positive side facing cover), and replace the cover.
The batteries should be replaced within 1 minute of removing the old ones, otherwise it may be necessary to resynchronize the handset.
NOTE: Finger marks on the batteries will adversely affect battery life. If possible, avoid touching the surface of the batteries, and wipe clean before installing.
Handset Synchronization
The handset transmits a coded message, which changes each time a button is pressed. If a Handset is operated too many times out of range of the vehicle or if the Handset batteries are removed for longer than a minute, it may need to be resynchronized.
To Synchronize:
If the vehicle is locked, press the 'unlock' button on the Handset and then unlock the vehicle using the key.
If the vehicle is unlocked, press the 'lock' button on the Handset and then lock the vehicle using the key.
NOTE: Handset synchronization cannot be achieved if the vehicle alarm is armed.