See also:

Daytime running light system (Canada only)
The daytime running lights automatically illuminate when the engine is started with the parking brake released. The daytime running lights operate with the headlight switch in the OFF position ...

Temperature
High temperatures accelerate the rate of corrosion to those parts which are not well ventilated. ...

Regulatory Information
FCC Regulatory information – CAUTION: To maintain compliance with FCC’s RF exposure guidelines, use only the supplied antenna. Unauthorized antenna, modification, or attachments could damage ...