See also:

Headlamp control
Turns the lamps off. Turns on the parking lamps, instrument panel lamps, license plate lamps and tail lamps. Turns the low beam headlamps on. ...

Troubleshooting
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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 ...