The fuel gauge on my 2001 V70 has stopped registering and at the same time my rear doors including the hatch have stopped automatically locking and unlocking. This has to be some kind of security/alarm feature, but I can't find anything on it. Anyone know? Will this have to be taken to the dealer to be reset or is there something I can do?

Mine is doing the same thing. Best I can tell from what I have found is the problem is located in an electrical panel in the back (cargo) area on drivers side. I also noticed that the rear wiper is not working. Wondering if anyone has heard of problems with a master power relay problem on this panel. Only happens when temperature is above 80 F