There are several past topics on the forum where it's printed, but here it is again:- CORRECT REBOOT PROCEDURE FOR BSI Put the driver's window down, lift the bonnet and ensure all equipment is switched off. Ensure all doors are closed and remove key from the ignition. Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds. Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.). Switch on the side lights through the driver's window. Switch on the ignition and check system's functionality. Hold lock button on key down for 10 seconds. Remove key open & close door test central locking system. Start the engine and complete the system's check. Reset the clock and date. Failure to follow this procedure could result in incorrect operation of many BSI related items. Hi John hanks for that. One question however, I don't have the key fob/remote key. When I bourght the car, only had the coded key for the imobiliser, so can can I lock/unlock manually? Derren