See also:

Speedometer
The speedometer shows the vehicle speed. ...

If the light illuminates steadily
If the light illuminates steadily 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 ...

Battery
WARNING ● Before beginning work on or near any battery, be sure to extinguish all cigarettes, matches, and lighters. Never expose a battery to an open flame or electric sparks. Batteries gi ...