RE: V50 regular service / maintenance reset
1. Press and hold trip odometer reset button
2. Turn ignition key to run position KPII (not the start position)
3. Wait 30 seconds or until service light begins blinking
4. Release Trip Odometer button
5. Turn ignition to off position
Read your Volvo warranty carefully, Make sure you use a Volvo oil filter and save your receipts. Intermediate and major services should be done by the dealer to avoid warranty hassles.