See also:

Tire Pressure Monitoring System (TPMS)
Low Tire Pressure Telltale TPMS Malfunction Indicator Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the ...

Exhaust Emission Control System
The Exhaust Emission Control System is a highly effective system which controls exhaust emissions while maintaining good vehicle performace. ...

Change to "winter weight" oil if necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you s ...