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:

    Hill Start Assist system
    WARNING ► Never rely solely on the hill start assist system to prevent the vehicle from moving backward on a hill. Always drive carefully and attentively. Depress the brake pedal when ...

    Portable Audio Devices
    This vehicle has an auxiliary input, located on the audio faceplate, and a USB port located on the instrument panel or in the center console. External devices such as iPod®, laptop computers, MP3 p ...

    Touch screen display icons
    Back soft key: Touch to return to the previous screen displayed. ...