Mercedes-Benz GL-Class: Driving downhill - Traveling uphill - Driving tips - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Driving downhill

Drive slowly.
Do not drive at an angle down steep inclines. Steer into the line of fall and drive with the front wheels aligned straight.

Otherwise, the vehicle could slip sideways, tip and rollover.

Before tackling steep downhill gradients, select shift range 1.
Activate DSR. If this is not sufficient, brake gently. When doing so, make sure that the vehicle is facing in the direction of the line of fall.
Check that the brakes are working normally after a long downhill stretch.

a precise, brief and repeated locking of the The special off-road ABS setting enables a precise, brief and repeated locking of the front wheels, causing them to dig into the loose earth. Be aware that the front wheels easily skid across the ground surface if completely braked and therefore lose their ability to steer.

    Brow of hill
    When driving up an uphill gradient, slightly reduce pressure on the accelerator immediately before reaching the brow of the hill. Use the vehicle's own impetus to drive over the top of the hill. ...

    See also:

    Manual Mode
    Driver Shift Control (DSC) The vehicle has Driver Shift Control (DSC). DSC controls the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by allowing you to ...

    Making adjustments in 5 mph (Canada:10 km/h) increments
    ► Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...

    Reporting Safety Defects to the United States Government
    If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in ...