See also:

Heated steering wheel (if so equipped)
The heated steering wheel system is designed to operate only when the surface temperature of the steering wheel is below 68°F (20°C). Push the heated steering wheel switch to warm the steer ...

Dimensions and weights
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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. ...