Mercedes-Benz GLS Operator's Manual page 284

Warning and indicator lamps in the instrument cluster
282
Warning/
N Signal type
indicator
Possible causes/consequences and M Solutions
lamp
! N The yellow ABS warning lamp is lit while the engine is running.
ABS (Anti-lock Braking System) is deactivated due to a malfunction.
Other driving systems and driving safety systems may also malfunction.
In addition, the ÷ and å warning lamps may light up in the instrument
cluster.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the functions listed
above. The wheels could therefore lock if you brake hard, for example.
The steerability and braking characteristics may be severely affected. The braking
distance in an emergency braking situation can increase.
If ESP
There is an increased risk of skidding and an accident.
X
X
X
If the ABS control unit is faulty, there is also a possibility that other systems, such
as the navigation system or the automatic transmission, will not be available.
G
WARNING
®
is not operational, ESP
Observe the additional display messages in the multifunction display.
Drive on carefully.
Visit a qualified specialist workshop immediately.
®
is unable to stabilize the vehicle.