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:
Steering in Emergencies
There are some situations when steering around a problem may be more effective
than braking.
Holding both sides of the steering wheel allows you to turn 180 degrees
without removing a hand.
...
Engine Cooling System Messages
ENGINE HOT A/C (Air Conditioning) OFF
This message displays when the engine coolant becomes hotter than the normal
operating temperature.
See Engine Coolant Temperature Gauge . To avoid added stra ...
Around ViewTM Monitor
When you push the CAMERA button or shift
the selector lever into the R (Reverse)
position while the ignition switch is in the
ON position, the Around View Monitor
operates. The monitor display ...
