See also:

Winter Operation
Use of the air Recirculation mode during winter months is not recommended because it may cause window fogging. ...

After Starting
The idle speed will automatically decrease as the engine warms up. ...

Towing Requirements – Trailer Brakes
− Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. This could cause inadequate braking and possible personal injury. − An ele ...