been out today fine in car, went to just go out now, remote won't open car, red light flashes on key fob

if i unlock the car with key i think it will set off the alarm etc.

whats the most likely suspect?

Try spare key if you have it or new battery in key in case that is it. I don't know whether the cars of that age give you a low battery warning on the screen.

I recall a warning not to press the key button away from the car as that can put the key to a different rolling code to that in the car, the example given being a child playing with the key. If I remember right the solution was to open the car with the physical key and then hold the key under the steering column and press the button to reconnect. See if the handbook confirms that if possible.

While it is unlikely the (car) battery is flat if you have been running it earlier, that would be the next thing to check, then what has drained it. Only Range Rovers since 1988

sorted it

i re synced it and it sorted it out


absolutely no idea why it just stopped working but anyway sorted

It's a rolling code and sometimes evil magic occurs and they get out of sync , happens to nearly everyone at some point  2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis