turn off the car’s ignition.
Hold down the reset button on the dash board to zero the mileage.
keep it held in.
turn the car’s ignition on – but do not start.
keep the button in for 5 seconds.
a menu will come up – like date/mileage.
let go and then press the button again.
it will toggle through some options – then get to ‘rst’
press the button again, and your done