Sure here it was I used.
STEPS
1. Press the START button twice (without foot brake) to power up the system
2. Press the trip reset button couple of times until the ODO is displayed (not trip A or B)
3. Turn off the system again by pressing START again
4. Unbuckle the driver's seatbelt
5. Turn on the system again (press the START button twice without foot brake)
6. When the dash lights come on, press and hold the trip reset button for about 10-15 seconds (possibly longer if it doesn't work first time)
7. While still holding the trip reset button, buckle the driver's side seatbelt
8. The odometer display should read "b ON" or "b OFF" (toggle this with the trip reset button)
9. Process should be completed when you unbuckle or turn the system off
The setting is retained until changed again (by simply repeating the process).