2019 MERCEDES-BENZ GLS SUV steering wheel

Display messages
Possible causes/consequences and
0050
0050Solutions ACTIVE
ACTIVE
CURVE
CURVESYSTEM
SYSTEM
Malfunction See
Malfunction See
Operator's Manual Operator's Manual The ACTIVE CURVE SYSTEM is faulty. The vehicle's handling charac-
teristics are severely impaired. A warning tone also sounds.
G WARNING
There is a risk of an accident.
X Drive on carefully.
X Adjust your driving style to the altered handling characteristics.
X Avoid sudden acceleration around tight corners and fast steering
movements.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop immediately. 003B
Different. Lock Different. Lock
Sys. Malfunction Sys. Malfunction The differential lock is faulty.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. 003B
Different. Locking Different. Locking
Sys. Cooling Down Sys. Cooling Down
Please Wait Please Wait The differential lock is too hot and has been disengaged.
X Drive on carefully.
X Allow the differential lock to cool down.
The differential lock re-engages as soon as it has cooled down. LOW RANGE Stop LOW RANGE Stop
Apply Parking Brake Apply Parking Brake A gearshift process has been canceled. LOW RANGE is in the neutral
position. There is no connection between the engine and the drive
wheels.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the electric parking brake. Do not continue driving under any
circumstances.
X Repeat the gearshift process. LOW RANGE Malfunc‐
LOW RANGE Malfunc‐
tion tion
To
ToPark,
Park, Apply
Apply
Brake
Brake LOW RANGE is malfunctioning.
X Do not drive at speeds above 31 mph (50 km/h).
X When parking, secure the vehicle against rolling away (Y page 158).
X Visit a qualified specialist workshop. LOW RANGE Max.
LOW RANGE Max.
Speed 25 mph Speed 25 mph You have exceeded the maximum speed for the gearshift process.
X Drive more slowly.
The gear change is made. LOW RANGE Max. LOW RANGE Max.
Speed 31 mph Speed 31 mph You have exceeded the maximum speed for the gearshift process.
X Drive more slowly.
The gear change is made. LOW RANGE Shift to LOW RANGE Shift to
Position N Briefly Position N Briefly You have reduced the vehicle speed, but the automatic transmission
is not in position 005C.
X Briefly shift the automatic transmission to 005C. Display
messages
263On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions Blind Spot Assist
Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual
orActive
Active
Blind Spot Assist
Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative.
Possible causes are:
R the radar sensor system is outside the operating temperature range
R the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
The yellow 0063indicator lamps also light up in the exterior mirrors.
When the causes stated above no longer apply, the display message
disappears.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If 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 Secure the vehicle against rolling away (Y page 158).
X Restart the engine. Blind Spot Assist Blind Spot Assist
Not Available When Not Available When
Towing a Trailer Towing a Trailer
See Operator's Man‐ See Operator's Man‐
ual ual
orAct. Blind
Act. Blind
Spot Asst. Not
Spot Asst. Not
Available When Tow‐ Available When Tow‐
ing a Trailer See ing a Trailer See
Operator's Manual Operator's Manual Blind Spot Assist or Active Blind Spot Assist is deactivated while tow-
ing a trailer.
You have established the electrical connection between the trailer and
your vehicle.
X Press 0076on the steering wheel to confirm the display message. Blind Spot Assist Blind Spot Assist
Inoperative Inoperative
or
Active Blind Spot
Active Blind Spot
Assist Inoperative Assist Inoperative Blind Spot Assist or Active Blind Spot Assist is malfunctioning.
The yellow
0063indicator lamps also light up in the exterior mirrors.
X Visit a qualified specialist workshop. Active Parking Active Parking
Assist Canceled Assist Canceled The driver's door is open.
X Repeat the parking gap measurement and parking process with the
driver's door closed. You have inadvertently touched the multifunction steering wheel while
steering intervention was active.
X While steering intervention is active, make sure that the multifunc-
tion steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 192).Active Parking
Active Parking
Assist Inoperative Assist Inoperative Parking Assist PARKTRONIC is malfunctioning or faulty.
X Follow the instructions and helpful hints in the "Problems with
Parking Assist PARKTRONIC" section (Y page 192).
If the multifunction display still shows the display message:
X Visit a qualified specialist workshop. Display
messages
265On-board computer and displays Z

Tires
Display messages
Possible causes/consequences and
0050
0050Solutions Check
Check
Tire
TirePressure
Pressure
Soon
Soon The tire pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tires or installed
new wheels and tires
R the tire pressure in one or more tires has dropped significantly
G WARNING
Tire pressures that are too low pose the following hazards: R they may burst, especially as the load and vehicle speed increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 158).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 335).
X Check the tire pressures and, if necessary, correct the tire pressure.
X Restart the tire pressure loss warning system when the tire pres-
sure is correct (Y page 359). Check Check
Tire
TirePressure
Pressure
Then Restart Run
Then Restart Run
Flat Indicator Flat Indicator The tire pressure loss warning system generated a display message
and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 359).Run Flat Indicator Run Flat Indicator
Inoperative Inoperative The tire pressure loss warning system is faulty.
X Visit a qualified specialist workshop. 0077
Rectify Tire Pres‐ Rectify Tire Pres‐
sure sure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressure (Y page 359).
X If necessary, correct the tire pressure.
X When the tire pressure is correct, restart the tire pressure moni-
toring system (Y page 362).268
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions 0077
Check Tire(s) Check Tire(s) The tire pressure in one or more tires has dropped significantly. The
wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
Tire pressures that are too low pose the following hazards: R they may burst, especially as the load and vehicle speed increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 158).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 335).
X Check the tire pressure (Y page 359).
X If necessary, correct the tire pressure. 0077
Warning Tire Mal‐ Warning Tire Mal‐
function function The tire pressure in one or more tires has dropped suddenly. The wheel
position is shown in the multifunction display.
G WARNING
Driving with a flat tire poses a risk of the following hazards: R a flat tire affects the ability to steer or brake the vehicle
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-up
and possibly a fire
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 158).
X Check the tires and, if necessary, follow the instructions for a flat
tire (Y page 335). Tire Tire
Press.
Press. Monitor
Monitor
Currently Unavaila‐
Currently Unavaila‐
ble ble Because there is interference from a strong source of radio waves, no
signals from the tire pressure sensors are detected. The tire pressure monitor is temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon as the
problem has been resolved. 0077
TirePress. Sen‐ TirePress. Sen‐
sor(s) Missing sor(s) Missing There is no signal from the tire pressure sensor of one or several tires.
The pressure of the affected tire is not displayed in the multifunction
display.
X Have the faulty tire pressure sensor replaced at a qualified special-
ist workshop. Display
messages
269On-board computer and displays Z

Warning/
indicator
lamp
0051
0051 Signal type
Possible causes/consequences and 0050 0050Solutions 0025
0051
The yellow ABS warning lamp is lit while the engine is running.
ABS is temporarily unavailable.
Other driving systems and driving safety systems may also malfunction.
In addition, the 00E5and00BB warning lamps may light up in the instrument
cluster.
ATTENTION ASSIST is 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 exam-
ple.
The steerability and braking characteristics may be severely affected. 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 movements 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 immediately. 278
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Problems with the 115 V power socket
Problem
Possible causes/consequences and
0050
0050Solutions The warning lamp on the
115 V power socket is
not lit. The on-board voltage is too low because the battery is too weak.
X Start the engine.
or X Charge the battery (Y page 342).
If the indicator lamp still does not light up: X Visit a qualified specialist workshop. The temperature of the DC/AC converter is temporarily too high.
X Remove the electronic device connector from the 115 V socket.
X Let the DC/AC converter cool down.
If the indicator lamp still does not light up after cooling down the
converter:
X Visit a qualified specialist workshop. You have connected an electronic device that has a constant nominal
power of less than 150 watts, but has a very high switch-on current.
This device will not work. If you connect such a device, the 115 V
power socket will not supply it with power.
X Connect a suitable electronic device. mbrace
General notes The mbrace system is only available in the USA.
A license agreement must be in place in order to
activate the mbrace service. Make sure that
your system is activated and operational. To
register, press the 00D9Info call button. If any of
the steps mentioned are not carried out, the
system may not be activated.
If you have questions about the activation, con- tact one of the following telephone hotlines:
Mercedes-Benz Customer Assistance Center at
1-800 FOR-MERCEDES (1-800-367-6372) or
1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will be
sent to you by mail. You can use this password
to log onto the mbrace area under "Owners
Online" at http://www.mbusa.com. The system is available if:
R it has been activated and is operational
R the corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
R a service subscription is available
Determining the location of the vehicle on a map
is only possible if:
R GPS reception is available
R the vehicle position can be forwarded to the
Customer Assistance Center
The mbrace system To adjust the volume during a call, proceed as
follows:
X Press the 0081or0082 button on the multi-
function steering wheel.
or X Use the multimedia system volume control. Features
309Stowage and features Z

You can find more information in the separate
mbrace manual.
The system has not been able to initiate a Road-
side Assistance call, if:
R the 0052 indicator lamp for the Roadside
Assistance call button is flashing continu-
ously.
R no voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone net-
work is not available, for example.
The Call Failed Call Failed message appears in the mul-
tifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or X Press the corresponding multimedia system
button for ending a phone call.
Info call button X
To call: press Info call button 0043.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in Info call button 0043
flashes while the connection is being made.
The Connecting Call
Connecting Call message appears in
the multifunction display. The audio output is muted.
If a connection can be established, the Call Call
Connected
Connected message appears in the multifunc-
tion display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
R Current location of the vehicle
R Vehicle identification number The multimedia system display indicates that a
call is active. During the call, you can change to
the navigation menu by pressing the NAVI but-
ton on COMAND, for example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
You receive information about operating your
vehicle, about the nearest Mercedes-Benz Ser-
vice Center and about other products and serv- ices from Mercedes-Benz.
You can find further information on the mbrace
system under "Owners Online" at
http://www.mbusa.com.
The system was unable to initiate an Info call if:
R the indicator lamp in the 00D9Info call button
is flashing continuously.
R no voice connection to the Mercedes-Benz
Customer Assistance Center has been estab-
lished.
This can occur if the relevant mobile phone net-
work is not available, for example.
The Call Failed
Call Failed message appears in the mul-
tifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or X Press the corresponding multimedia system
button for ending a phone call.
Call priority When service calls are active, e.g. Roadside
Assistance or Info calls, an emergency call can
still be initiated. In this case, an emergency call
will take priority and override all other active
calls.
The indicator lamp of the respective button
flashes until the call is ended.
An emergency call can only be terminated by the
Mercedes-Benz Customer Assistance Center.
All other calls can be ended by pressing:
R the 0076 button on the multifunction steering
wheel
R the corresponding button in the multimedia
system to end the voice call
When a call is initiated, the audio system is
muted. 312
FeaturesStowage and features

Further information on windshield washer fluid
(Y page 388). ASSYST PLUS
Service message
i If the scheduled service intervals are excee-
ded, this may result in damage to the vehicle.
You can obtain up-to-date information concern-
ing the servicing of your vehicle from a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Center or at
http://www.mbusa.com (USA only).
i The ASSYST PLUS service interval display
does not show any information on the engine
oil level. Observe the notes on the engine oil
level (Y page 322).
The multifunction display shows a service mes-
sage for several seconds, e.g.:
R Service A in .. Days Service A in .. Days
R Service A Due
Service A Due
R Service A Exceeded by .. Days
Service A Exceeded by .. Days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the next service due date is displayed.
The letter A
A or B B, possibly in connection with a
number or another letter, shows the type of ser-
vice. A
A stands for a minor service and B
Bfor a
major service.
Further information can be obtained at a quali-
fied specialist workshop.
The ASSYST PLUS service interval display does
not take into account any periods of time during
which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. Hiding a service message
X Press the 0038or0076 button on the steering
wheel. Displaying service messages
X Switch on the ignition.
X Press the 0059or0065 button on the steering
wheel to select the Serv. Serv.menu.
X Press the 0063or0064 button to select the
ASSYST
ASSYST PLUS
PLUSsubmenu and confirm by press-
ing the 0076button.
The service due date appears in the multi-
function display. Information about Service
Resetting the ASSYST PLUS service
interval display !
If the ASSYST PLUS service interval display
has been inadvertently reset, this setting can
be corrected at a qualified specialist work-
shop.
Have service work carried out as described in the Maintenance Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
A qualified specialist workshop will reset the
ASSYST PLUS service interval display after the
service work has been carried out. You can also obtain further information on maintenance
work, for example.
Special service requirements The specified maintenance interval takes only
the normal operation of the vehicle into
account. Under increased load on the vehicle,
maintenance work must be carried out more
frequently, for example:
R Regular city driving with frequent intermedi-
ate stops
R If the vehicle is primarily used to travel short
distances
R Use in mountainous terrain or on poor road
surfaces
R If the engine is often left idling for long periods
Under these or similar conditions, have, for
example, the air filter, engine oil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must be checked more often. Further information can be
obtained at a qualified specialist workshop. ASSYST PLUS
325Maintenance and care Z