Citroen XM Forum

Hello all, I disconnected the battery on my 2.5TD, and on re-connecting, find the headlights keep flashing, along with a red light on the dash. I guess this is something to do with the immobiliser. The previous owner set the code so it does not need entering each time so the green light is on and the car starts fine. Any ideas? Cheers!

Hi GlosV6,welcome, after reconnecting the battery,simply lock(all doors,bonnet and boot closed) and set the alarm using the plip,then unlock using the plip.This should re-initialise the alarm.
robertm

Many thanks - glad it was so simple!