immobiliser light wont go out

[andy_p7777]

battery went flat other day so swapped battery for a new 1 and when trying to start the car up the light wont go off ive tried all sorts.
How do u reset it?

 

[edde]

ARr right sounds more like the ecu and keys neeed resyncronising you need to go to Renault to get them to do it.