I'll help you with the 2nd question. Although...you generally should do due diligence in searching for the answer. It has been asked and answered many, many times.
- Without stepping on the brakes, PRESS the START button once.
- Wait for the TIME to appear.
- HOLD in the RESET button on the dash. Keep holding it in until the first reset variable shows up.
- PRESS & RELEASE the reset button repeatedly until the service you need resetting appears then...
- PRESS & HOLD again until a "Reset?" prompt appears.
- PRESS & HOLD one last time until you see the prompt indicate that it's resetting.
Done!