Mercedes-Benz GL-Class: 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 vehicle when braking.
ABS works from a speed of about 5 mph(8 km/h) upwards, regardless of roadsurface conditions. ABS works on slippery surfaces, even when you only brake gently.
WARNING 
If the ABS malfunctions, other driving systems
such as the BAS or the ESP® are also switched
off. Observe indicator and warning lamps that
may come on as well as messages in the
multifunction display that may appear.
If the ABS malfunctions, the wheels may lock
during hard braking, reducing the steering
capability and extending the braking distance.
The 
warning lamp in the
instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
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.
► ...
See also:
Fuel Gauge
When the ignition is on, the fuel gauge shows about how much fuel the vehicle
has left in the tank.
An arrow on the fuel gauge indicates the side of the vehicle the fuel door is
on.
The gauge wi ...
Window curtain air bags
The window curtain air bags enhance the level
of protection for the head, but not chest or
arms, of the vehicle occupants on the side of
the vehicle on which the impact occurs.
The window curtai ...
Adjusting the multicontour seat
You can adjust the contour of the front seats
individually so as to provide optimum support
for your back and sides.
► Make sure that the SmartKey is in
position
2 in the ignition lock.
...
