hi andy try this,*unlock driver's door with key
*preess & hold lock/unlock button led should be flashing on key fob.
*wait 20 second's then press double locking button
*led stop's flashing
*release lock/unlock button
*led remains illuminated
*press lock/unlock button led goes out
*enter vehicle
*hold remote against ignition switch*press lock/ulock button
*switch ignition on
*wait 10 second's
*switch ignition off
*wait 5 second's
*synchronization procedure complete
hope this works for you & this will need to be done evertime the battery is changed in the keyfob,best of luck
steray, July 2008