Hi, I have 2000 2.5 DSE. New car battery fitted today, drove away but when I parked up the fob would not lock the car. No time to fiddle about so locked with key. Returned to car a few hours later and unlocked it with the remote! Locked/unlocked a few times since and everything seems ok, but notice that indicators now do not flash on locking/unlocking. Any ideas as to why?