I have a 99 S80. For some reason the Steering wheel controls, Blinkers (and read -info buttons) along with the presets for drivers seat stop working. It happens speraticly and usualy starts to funtions after a few hours of driving.

I checked all the fuses. I was thinking it could be a relay ?

It's really anoying.

Please help.

Mike

 

When it happens again check the function of the headlights and the wipers.If you have only one speed of the wipers and no high beam function.Then the steering wheel module is bad and will need to be replaced.