These are the steps I am taking. The car beeps and displays a 163 and the service light is still on. Anyone knows what the 163 means?

I have a 2008 volvo S80. when reseting the service engine light (with the keyless procedure; press the start button, instrument panel lights up; press the trip meter reset and the start button together) I get a code of 163 and can't reset the light. any help?

thanks Christian