See also:

On-board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s emission control system. This system is commonly known as the on-board diagnostics system (OBD-II). The OBD-II system protects t ...

Understanding your tire pressure monitoring system (TPMS)
The tire pressure monitoring system measures pressure in your four road tires and sends the tire pressure readings to your vehicle. The low tire pressure warning light will turn on if the tire pre ...

Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading (in miles or kilometers). 2. Each time you fill the tank, record the amount of fuel added (in gallons or liters). 3. Af ...