try the search button nigel
In the time it took you to respond with that very helpful message, you could have actually told him how to do it.
1. Turn the ignition OFF.
2. Hold down the trip computer UP and DOWN buttons together.
3. Turn the ignition ON while still holding down both buttons.
4. After approx 3 seconds, release both buttons.
5. The service menu appears and asks if you want to reset.
6. Press and hold the SET button for more than 3 secs.
7. Press the MODE button.
8. Turn ignition OFF.