1. Insert key and start engine
2. Press and hold trip reset button on dash for 10+ seconds. Ignore the warnings that pop up.
3. You should be greeted by the last 7 of the cars vin on the dash
4. Press the trip reset button repeatedly to get menu 19 displayed, it should say 'lock on'. (You might need to.press and hold the trip button for 3 seconds to toggle to the L/H digits.)
5. After a couple of seconds the window will change to say code 00
6. Press the trip reset button till your code is reached
7. After a couple more seconds it will take you back to step 01.00
8. You will need to.press and hold the trip button for 3 seconds to toggle to the L/H digits.
9. Press the trip reset button till you reach test 07.00 which will display your coolant temp.