How do you reset the service light in a 2008 Volvo S80 T6 AWD Keyless Start?

To reset the service light in a 2008 Volvo S80 T6 AWD with Keyless Start, insert the key into the ignition or press the start button without pressing the brake pedal to turn on the electrical systems. Navigate to the trip computer using the buttons on the dashboard until you see the "Service" message. Press and hold the "OK" button on the steering wheel while turning the key to the "On" position, then release the button when the light resets. Finally, turn off the ignition and restart the vehicle to ensure the service light is cleared.