Mercedes-Benz GL-Class: Slippery road surfaces - Winter driving - Driving tips - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Slippery road surfaces

WARNING The outside temperature indicator is not 
The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose.
Indicated temperatures just above the freezing point do not guarantee that the road surface is free of ice. The road may still be icy, especially in wooded areas or on bridges.

WARNING On slippery road surfaces, never downshift in 
On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of control loss.
Do not engage the transfer case in position LOW when driving on ice or packed snow. At speeds below 18 mph (30 km/h) vehicle steering is adversely affected by the Off-road ABS.

Drive particularly carefully on slippery road surfaces. Avoid sudden acceleration, steering and braking maneuvers. Do not use cruise control.

If the vehicle threatens to skid or cannot be stopped when moving at low speed:

► Shift the transmission to position N.

snow chains, see. For more information on driving with snow chains, see.

WARNING Make sure that you do not endanger other 
Make sure that you do not endanger other road users when you apply the brakes.

    Snow chains
    For safety reasons, Mercedes-Benz recommends that you only use snow chains which have been specially approved for your vehicle by Mercedes-Benz, or are of a corresponding standard of quality. ...

    See also:

    Rear Window Defogger
    The rear window defogger uses a warming grid to remove fog from the rear window. (Rear Window Defogger): Press to turn the rear window defogger on or off. It automatically turns off after it has b ...

    DEF
    Important safety notes For BlueTEC vehicles only. DEF is a non-flammable, non-toxic, colorless, odorless and water-soluble fluid. Only use DEF that complies with ISO 22241. Do not add any ...

    Clearing the programmed information
    Individual buttons cannot be cleared, however to clear all programming, push and hold the two outside buttons and release when the indicator light begins to flash (in approximately 20 seconds) ...