Mercedes-Benz GL-Class: Setting a speed - DISTRONIC - Driving systems - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Setting a speed

WARNING Keep in mind that it may take a brief moment 
Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments.
Increase or decrease the set vehicle speed to a value that the prevailing road conditions and legal speed limits permit. Otherwise, sudden and unexpected acceleration or deceleration of the vehicle could cause an accident and/or serious injury to you and others.

Press the cruise control lever to the pressure point, up 1 for a higher speed or down 2 for a lower speed.
Keep the cruise control lever pressed until the desired speed is reached.
Release the cruise control lever.

The new speed is stored. DISTRONIC is activated and adjusts the vehicle's speed to the new speed stored.

    Switching on DISTRONIC, storing andmaintaining the current speed
    WARNING   The vehicle can be braked when DISTRONIC is activated. For this reason, deactivate DISTRONIC if the vehicle is to be set in motion by other means (e.g. in a car wash or by tow ...

    Making adjustments in 1 mph (Canada:1 km/h) increments
    ► Briefly press the cruise control lever to the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...

    See also:

    Repair and replacement procedure
    The front air bags, side air bags, curtain and rollover air bags and pretensioners are designed to activate on a one-time-only basis. As a reminder, unless it is damaged, the supplemental air ...

    Weight-Distributing Hitch Adjustment
    A. Body to Ground Distance B. Front of Vehicle When using a weight-distributing hitch, the spring bars should be adjusted so the distance (A) is the same after coupling the trailer to the tow veh ...

    Using RSE
    The system is operated using the remote control. To release the remote from the docked position, press at the top of the remote to unlatch it. NOTICE Do not attempt to pull the remote contro ...