First you will need to get into the diagnostics screen. To do this put a wire between TC and E1 in the diagnostics port. This is located under the bonnet on top of the engine it is a small plastic box about 3in by 2in.
Turn the ignition switch to "ACC", you should see the following screen
Click on the blue button in the top right hand corner.
Click on the middle button on the right hand side
Click on the middle button
Click on the first big blue button
Use the arrows to adjust a field, NEXT to go to next field. The bottom right button saves and the bottom left button takes you back to the previous screen. Then turn the ignition off, remove the wire and you are done.