Mercedes-Benz GL-Class: Braking
If ABS intervenes when braking, you will feel a pulsing in the brake pedal.
► If ABS intervenes: continue to depress the
brake pedal with force until the braking
situation is over.
► To make a full brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an indication of hazardous road conditions, and functions as a reminder to take extra care while driving.
WARNING 
Do not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS and significantly reduces braking
effectiveness.
Important safety notes
Observe the "Important safety notes"
section.
ABS regulates brake pressure in such a way
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicl ...
Off-road ABS
An ABS mode specifically suited to off-road
terrain is activated automatically if the offroad
drive program is activated
or the LOW RANGE off-road
gear is selected.
At speeds below 18 mph(30 km ...
See also:
Brake Pedal Travel
See your dealer if the brake pedal does not return to normal height, or if there
is a rapid increase in pedal travel. This could be a sign that brake service might
be required. ...
Vehicle Messages
Messages are displayed on the DIC to notify the driver that the status of the
vehicle has changed and that some action may be needed by the driver to correct
the condition.
Multiple messages may ...
Turn Signal Indicator
The vehicle has a turn signal indicator on the mirror. An arrow on the mirror
flashes in the direction of the turn or lane change. ...
