See also:

Current speed in km/h (U.S. models only)
This function provides the driver with an instantaneous conversion of the car's current speed from mph to km/h. ...

Trailer Stability Assist (TSA)
Trailer Stability Assist is a system designed to help stabilize a vehicle that is towing a trailer when the vehicle and trailer have begun to sway and is part of the Dynamic Stability and Trac ...

Setting a speed
Once ACC has been put in standby mode, use the or buttons to store (set) the vehicle's current speed. This puts the system in active mode. The set speed, for example 55 mph, is shown in th ...