2015 MERCEDES-BENZ G-Class warning light

Display messages
Possible causes/consequences and
M
MSolutions 6
Front Front
Left
LeftMalfunc‐
Malfunc‐
tion Service
tion Service
Required Required orFront
Front
Right Malfunction
Right Malfunction
Service Required Service Required The front left-hand or right-hand restraint system has malfunc-
tioned. The
6warning lamp also lights up in the instrument
cluster.
G WARNING
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 Visit a qualified specialist workshop. 6
Rear Left Malfunc‐ Rear Left Malfunc‐
tion Service tion Service
Required Required
orRear
Rear
Right Malfunction
Right Malfunction
Service Required Service Required The rear left-hand or right-hand restraint system has malfunc-
tioned. The 6warning lamp also lights up in the instrument
cluster.
G WARNING
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 Visit a qualified specialist workshop. 6
Rear Center Mal‐ Rear Center Mal‐
function. Service function. Service
Required Required The rear center restraint system has malfunctioned. The
6
warning lamp also lights up in the instrument cluster.
G WARNING
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 Visit a qualified specialist workshop. 6
Left Side Curtain Left Side Curtain
Airbag Malfunc‐ Airbag Malfunc‐
tion. Service tion. Service
Required Required
orSide
Side
Curtain
Curtain Airbag
AirbagMal‐
Mal‐
function. Service
function. Service
Required Required There is a malfunction in the left-hand or right-hand window cur-
tain air bag. The
6warning lamp also lights up in the instrument
cluster.
G WARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be trig-
gered.
There is an increased risk of injury. X Visit a qualified specialist workshop. Display
messages
217On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Front Passenger
Front Passenger
Airbag Disabled. Airbag Disabled.
See See
Operator's
Operator's Man‐
Man‐
ual
ual A special BabySmart™-compatible child restraint system is moun-
ted on the front-passenger seat.
The 45indicator lamp also lights up.
The front-passenger air bag is therefore disabled.
Further information on BabySmart™ (Y page 56).Front Passenger Front Passenger
Airbag Enabled. Airbag Enabled.
See See
Operator's
Operator's Man‐
Man‐
ual
ual The
45indicator 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.
G WARNING
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 45indicator 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. Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed. Display messages
Possible causes/consequences and
M MSolutions b
Check Left Low Check Left Low
Beam Beam
orCheck
Check
Right Low Beam
Right Low Beam The left or right-hand low-beam headlamp is defective.
X Visit a qualified specialist workshop. b
Check Check
Trailer
Trailer Left
Left
Tail Lamp
Tail Lamp orCheck
Check
Trailer
Trailer Right
RightTail
Tail
Lamp
Lamp The left or right-hand trailer tail lamp is faulty.
X Check whether you are permitted to change the bulb yourself.
or X Visit a qualified specialist workshop. 218
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions b
Check Check
Left
LeftDaytime
Daytime
Running
Running
Lamp Lampor Check Right
Check Right
Daytime Running
Daytime Running
Lamp Lamp The left or right-hand daytime running lamp is defective.
X Visit a qualified specialist workshop. b
Malfunction. See Malfunction. See
Operator's Manual Operator's Manual The exterior lighting is defective.
X Visit a qualified specialist workshop. b
Auto Auto
Lamp
LampFunction
Function
Inoperative
Inoperative The light sensor is defective.
X Visit a qualified specialist workshop. b
Switch Off Lights Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X Turn the light switch to Ã.Engine
Display messages
Possible causes/consequences and
M MSolutions +
Check Coolant Check Coolant
Level. See Opera‐ Level. See Opera‐
tor's Manual tor's Manual The coolant level is too low.
X Add coolant, observing the warning notes before doing so
(Y page 278).
X Have the coolant system checked at a qualified specialist work-
shop if the coolant needs topping up more often than usual. ? The fan motor is faulty.
X At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Display
messages
221On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Differential lock
Differential lock
only available in only available in
LOW RANGE 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 (Y page 188).
X Repeat the gearshift process. TC NEUTRAL
TC NEUTRAL
ON 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 (Y page 150).
X Shift the transfer case according to driving conditions
(Y page 186). Preselected dif‐ Preselected dif‐
ferential lock ferential lock
ESP unavailable ESP unavailable A differential lock has been engaged. The differential gear has not
yet locked the respective differential. The activation indicator
lamp (yellow) (Y page 188) of the switch lights up.
ESP is unavailable.
ABS is still available. Differential lock Differential lock
active active
ABS and ESP ABS and ESP
unavailable 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) (Y page 188) on the
switch light up.
ABS and ESP are unavailable. 226
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Blind Spot Assist
Blind Spot Assist
currently unavail‐ currently unavail‐
able able
See See
Operator's
Operator's Man‐
Man‐
ual
ual Blind Spot Assist is temporarily inoperative. Possible causes are:
R you have established the electrical connection between the
trailer and your vehicle.
R the sensors are dirty.
R function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
X When towing a trailer, confirm the display message with a.
If you are driving without a trailer and the display message does
not disappear: X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Clean the sensors (Y page 284).
X Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
Blind Spot Assist is operational again. Blind Spot Assist Blind Spot Assist
or
Inoperative Inoperative Blind Spot Assist is defective.
The yellow
9indicator lamps also light up in the exterior mir-
rors.
X Visit a qualified specialist workshop. DISTRONIC PLUS DISTRONIC PLUS
Off Off DISTRONIC PLUS has been deactivated (Y
page 169).
If it was deactivated automatically, a warning tone also sounds. DISTRONIC PLUS
DISTRONIC PLUS
Now Available Now Available DISTRONIC PLUS is operational again after having been tempo-
rarily unavailable. You can now reactivate DISTRONIC PLUS
(Y
page 169). Display
messages
227On-board computer and displays Z

Safety
Seat belts Problem
Possible causes/consequences and
M
MSolutions ü
After starting the
engine, the red seat
belt warning lamp lights
up for 6 seconds. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X Fasten your seat belt (Y page 44).ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to 6 seconds. The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 44).
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 (Y page 44).
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 (Y page 44).
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 tone
ceases. Warning and indicator lamps in the instrument cluster
235On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions !
The yellow ABS warning
lamp is lit while the
engine is running. ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. BAS (Brake Assist), ESP ®
(Electronic Stability Program), the
HOLD function, hill start assist, the adaptive brake lights and
ESP ®
trailer stabilization, for example, are therefore also deacti-
vated.
G WARNING
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 cluster
237On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions !
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, are there-
fore also deactivated.
Possible causes are:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
G WARNING
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 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. 238
Warning and indicator lamps in the instrument clusterOn-board computer and displays