See also:

Lubrication oil circulation in the refrigerant circuit
Operate the air conditioner compressor at a low engine speed (at idle or low driving speeds) a few minutes each month during the off-season to circulate its oil. ...

If the light illuminates constantly
If the light illuminates constantly while driving or does not turn off after the engine starts, an emission control system malfunction has been detected. You should have your vehicle checked by an ...

Headlights
To turn on the headlights, turn the knob on the end of the turn signal lever. first position Instrument panel illumination, tail lights, front side marker lights and license plate lights are on ...