warning light MERCEDES-BENZ G-CLASS SUV 2015 Workshop Manual

Display messagesPossible causes/consequences andMSolutions
Front Passenger
Airbag Disabled.
SeeOperator'sManZ
ual
A special BabySmart™-compatible child restraint system is moun-
ted on the front-passenger seat. The 45 indicator lamp also lights up.
The front-passenger air bag is therefore disabled.
Further information on BabySmart™ ( Ypage 59).
Front Passenger
Airbag Enabled.
SeeOperator'sManZ
ual
The 45 indicator lamp does not remain lit if a special
BabySmart™-compatible child restraint system has been installed
on the front-passenger seat.
The BabySmart™ system is malfunctioning.
GWARNING
The front-passenger front air bag can be triggered unintentionally in the event of an accident.
There is a risk of an accident.
X Make sure there is nothing between the seat and the child
restraint system.
X Check that the child restraint system is installed correctly.
X If the 45 indicator lamp does not light up, have the
BabySmart™ system checked as soon as possible at a qualified
specialist workshop.
Do not transport a child on the front-passenger seat until the air
bag deactivation system has been repaired.
154Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Differential lock
only available in
LOW RANGE
The LOW RANGE button has been pressed. The transfer case is in
the LOW RANGE off-road driving position and a differential lock is
engaged.
X Disengage the differential locks ( Ypage 134).
X Repeat the gearshift process.
TC NEUTRAL
ON
The transfer case is in the Neutralneutral position.
A warning tone will also sound when the driver's door is opened
and the brake pedal is not depressed.
X Close the driver's door.
X Secure the vehicle against rolling away ( Ypage 110).
X Shift the transfer case according to driving conditions(Y page 132).
Preselected difZ
ferential lock
ESP unavailable
A differential lock has been engaged. The differential gear has not
yet locked the respective differential. The activation indicator
lamp (yellow) ( Ypage 134) of the switch lights up.
ESP is unavailable.
ABS is still available.
Differential lock
active
ABS and ESP
unavailable
A differential lock was engaged and the differential gear has
locked the respective differential. The activation indicator lamp
(yellow) and function indicator lamp (red) ( Ypage 134) on the
switch light up.
ABS and ESP are unavailable.
Display messages157
On-board computer and displays
Z

Safety
Seat belts
ProblemPossible causes/consequences and MSolutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to six seconds.The driver's seat belt is not fastened.
X Fasten your seat belt ( Ypage 46).
The warning tone ceases.
ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed.The driver or front passenger has not fastened their seat belt.
X Fasten your seat belt ( Ypage 46).
The warning lamp goes out.
There are objects on the front-passenger seat.
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.
ü
The red seat belt warn-
ing lamp flashes and an
intermittent audible
warning sounds.The driver or front passenger has not fastened their seat belt. The
vehicle is being driven faster than 15 mph (25 km/h) or has briefly been driven faster than 15 mph (25 km/h). X Fasten your seat belt ( Ypage 46).
The warning lamp goes out and the intermittent warning tone ceases.
There are objects on the front-passenger seat. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven
faster than 15 mph (25 km/h).
X Remove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning toneceases.
Warning and indicator lamps in the instrument cluster161
On-board computer and displays
Z

ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Other systems, e.g. BAS (Brake Assist), ESP ®
(Electronic Sta-
bility Program) and EBD (electronic brake force distribution), the
HOLD function, hill start assist, adaptive brake lights and ESP ®
trailer stabilization have also been deactivated.
GWARNING
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 affec-ted. The braking distance in an emergency braking situation can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that other
systems, such as the navigation system or the automatic trans-
mission, will not be available.
Warning and indicator lamps in the instrument cluster163
On-board computer and displays
Z

ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running.ABS is temporarily unavailable. BAS, ESP ®
, EBD (electronic brake
force distribution), the HOLD function, hill start assist, ESP ®
trailer
stabilization and the adaptive brake lights, for example, have also
been deactivated.
Possible causes are: R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
GWARNING
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 affec-ted. The braking distance in an emergency braking situation can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is a risk of an accident.
X Carefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on: X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
164Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences andMSolutions
!
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone alsosounds.EBD is malfunctioning. Therefore, ABS, BAS, ESP ®
, the HOLD
function, hill start assist, adaptive brake lights and ESP ®
trailer
stabilization, for example, are also unavailable.
GWARNING
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 affec-ted. The braking distance in an emergency braking situation can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
!
The yellow ABS warning
lamp is lit while the
engine is running.You have engaged the differential locks. ABS is deactivated.
X Disengage the differential locks.
Subsequently ABS is reactivated.
$ (USA only)
J (Canada only)
֌!
The yellow brake warn-
ing lamp, the yellow ESP ®
and ESP ®
OFF
warning lamps and the
yellow ABS warning
lamp are lit while the
engine is running.ABS and ESP ®
are malfunctioning. BAS, EBD, the HOLD function,
hill start assist, the adaptive brake lights and ESP ®
trailer stabili-
zation, for example, are therefore unavailable.
GWARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-ted. The braking distance in an emergency braking situation can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster165
On-board computer and displays
Z

ProblemPossible causes/consequences andMSolutions
÷
The yellow ESP®
warn-
ing lamp flashes while
the vehicle is in motion.ESP ®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
X When pulling away, only depress the accelerator pedal as far as
necessary.
X Ease off the accelerator pedal while the vehicle is in motion.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
For exceptions, see: ( Ypage 66).
å
The yellow ESP ®
OFF
warning lamp is lit while the engine is running.ESP ®
is deactivated.
GWARNING
If ESP ®
is switched off, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Reactivate ESP ®
.
For exceptions, see: ( Ypage 66).
X Adapt your driving style to suit the road and weather conditions.
If ESP ®
cannot be activated:
X Have ESP ®
checked at a qualified specialist workshop.
֌
The yellow ESP ®
and
ESP ®
OFF warning
lamps are lit while the
engine is running.ESP ®
, BAS, the HOLD function, hill start assist, the adaptive brake
lights and ESP ®
trailer stabilization are unavailable due to a mal-
function.
GWARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance in an emergency braking situation can thus increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
166Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences andMSolutions
֌
The yellow ESP®
and
ESP ®
OFF warning
lamps are lit while the
engine is running.ESP ®
, BAS, the HOLD function, hill start assist and ESP ®
trailer
stabilization are temporarily unavailable.
BAS and the adaptive brake lights may also have failed.
self-diagnosis is not yet complete.
GWARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance in an emergency braking situation can thus increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.
å
The yellow ESP ®
OFF
warning lamp is lit while the engine is running.The differential lock is engaged. ABS, ESP ®
, 4ETS and BAS have
been deactivated. X Disengage the differential lock. ESP ®
, 4ETS and BAS are subsequently reactivated.
X Observe the additional display messages in the multifunction
display.
6
The red restraint sys-
tem warning lamp is lit
while the engine is run-ning.The restraint system is faulty.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
X Drive on carefully.
X Have the restraint system checked at a qualified specialist
workshop immediately.
For further information about the restraint system, see( Y page 42).
Warning and indicator lamps in the instrument cluster167
On-board computer and displays
Z

Driving systems
ProblemPossible causes/consequences andMSolutions
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.The distance to the vehicle in front is too small for the speed
selected.
X Increase the distance.
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. A warning tone also
sounds.You are approaching a vehicle or a stationary obstacle in your lineof travel at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
Further information on DISTRONIC PLUS ( Ypage 117).
Wa rning and indi cator lamps in the instrument cluster169
On-board computer and displays
Z

Useful information
iThese operating instructions describe all
the standard and optional equipment of
your COMAND system, as available at the
time of going to print. Country-specific dif- ferences are possible. Please note that
your COMAND system may not be equip-
ped with all the features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops: ( Ypage 28).
General notes
The COMAND section in these operating
instructions describes the basic principles for
operation. More information can be found in
the Digital Operator's Manual.
Important safety notes
GWARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
If you make any changes to the vehicle elec-
tronics, the general operating permit is ren-
dered invalid.
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for
the country in which you are currently driving when operating COMAND.
COMAND calculates the route to the destina-
tion without taking account of the following,
for example:
R traffic lights
R stop and yield signs
R merging lanes
R parking or stopping in a no parking/no
stopping zone
R other road and traffic rules and regulations
R narrow bridges
COMAND can give incorrect navigation com-
mands if the actual street/traffic situation
does not correspond with the digital map's
data. Digital maps do not cover all areas nor
all routes in an area. For example, a route may have been diverted or the direction of a one-
way street may have changed.
For this reason, you must always observe
road and traffic rules and regulations during
your journey. Road and traffic rules and reg-
ulations always have priority over the sys-
tem's driving recommendations.
Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving.
Please always use this feature instead of con-
sulting the map display for directions. Look-
ing at the icons or map display can distract
you from traffic conditions and driving, and
increase the risk of an accident.
172Important safety notes
COMAND