See also:

Before You Begin Programming HomeLink
Be sure that your vehicle is parked outside of the garage before you begin programming. For more efficient programming and accurate transmission of the radio-frequency signal it is recommended th ...

Extreme Cold Weather (Below –20°F Or 29°C)
To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended. ...

To Resume Speed
To resume a previously set speed, push the RES (+) button and release. Resume can be used at any speed above 20 mph (32 km/h). ...