See also:

Lights
Have someone observe the operation of exterior lights while you work the controls. Check turn signal and high beam indicator lights on the instrument panel. ...

Fluid Leaks
Check area under vehicle after overnight parking for fuel, engine coolant, oil, or other fluid leaks. Also, if gasoline fumes are detected or if fuel, power steering fluid, or brake fluid leaks ...

Lane Change Assist
Tap the lever up or down once, without moving beyond the detent, and the turn signal (right or left) will flash three times then automatically turn off. ...