See also:

Air conditioner button (if so equipped)
Air conditioner button (if so equipped) The button is provided only on vehicles equipped with an air conditioner. Start the engine, turn the fan control dial to the desired position and push ...

Relative humidity
Corrosion will be accelerated in areas of high relative humidity, especially those areas where the temperatures stay above freezing and where atmospheric pollution exists and road salt is used. ...

Uniform tire quality grading
DOT (Department of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable ...