Volvo Owners Club Forum - View Single Post - S40:

Palladin · Dec 29th, 2017, 23:58

My spare key fob for pre 2004 S40 remained unused for several years until I tried to use it. It did not function as the fob battery had discharged.
A new battery was inserted but the remote still did not recover. It would appear that in order to maintain key fobs in an active state, a working battery is essential.
I am now searching for ways to re-activate the fob other than going down the route of the main dealer. Advice would be most welcome.

Dec 29th, 2017, 23:58	#23
Palladin New Member Last Online: Aug 24th, 2018 12:12 Join Date: May 2012 Location: Swansea	Consequences of allowing key fob battery to discharge. My spare key fob for pre 2004 S40 remained unused for several years until I tried to use it. It did not function as the fob battery had discharged. A new battery was inserted but the remote still did not recover. It would appear that in order to maintain key fobs in an active state, a working battery is essential. I am now searching for ways to re-activate the fob other than going down the route of the main dealer. Advice would be most welcome.