Beware...that push button, as well as resetting the trip odometer, is also used to calibrate the speedo. If you depress it and hold whilst turning the ignition key to start the engine, it will go into calibration mode. A number will appear in the odometer space which if changed, will alter the calibration of the speedo. People have been known to do it by accident and then get stuck to reverse the process without knowing the original code.
