phone MERCEDES-BENZ GLS 2018 Owner's Guide

existing call, vehicle data is transferred to the
Customer Assistance Center.
The customer service representative can use
the received data to decide what kind of assis-
tance is required. You are then, for example,
guided to the nearest Mercedes-Benz Service
Center or a recovery vehicle is called.
If vehicle data need to be transferred during an
Info call or a Roadside Assistance call, this is
initiated by the Customer Assistance Center.
The Roadside Assistance Connected mes-
sage appears in the display. If the Vehicle Health
Check can be started, the Request for Vehi‐
cle Diagnostics Received Start vehi‐
cle diagnostics? message appears in the
display. X
Press the Yes button to confirm the message.X
If the Vehicle Diagnostics Please
Start Ignition message appears: turn the
SmartKey to key position H in the ignition
lock ( Y
page 140).X
If the Please follow the instructions
received by phone and move your vehi‐
cle to a safe position. message
appears: please follow the instructions
received by phone and move your vehicle to a
safe position.
The message in the display disappears.
The vehicle operating state check begins.
During this procedure, you will see the Vehi‐
cle Diagnostics Active message.
If you select Cancel
, the Vehicle Health
Check is canceled completely.
When the check is complete, the Sending
vehicle diagnostics data. (Voice con‐
nection may be interrupted during
data transfer) message appears. The vehicle
data can now be sent. X
Press the OK button to confirm the message.
The voice connection with the Customer
Assistance Center is terminated.
The Vehicle Diagnostics: Transfer‐
ring Data... message appears.
The vehicle data is sent to the Customer
Assistance Center.
Depending on what the customer service rep-
resentative agreed with you, the voice connec-
tion is re-established after the transfer is com-
plete. If necessary, you will be contacted at a
later time by another means, e.g. by e-mail or
phone. Another function of the Vehicle Health Check is
the transfer of service data to the Customer
Assistance Center. If a service is due, the display
shows a message to this effect together with
information about any special offers at your
workshop.
This information can also be called up under
"Owners Online" at http://www.mbusa.com .
Information on the data stored in the vehicle
( Y
page 32).
Information on Roadside Assistance
( Y
page 29).
Downloading routes Downloading routes allows you to transfer and
save predefined routes in the navigation sys-
tem.
A route can be prepared and sent either by a
customer service representative or under "Own-
ers Online" at http://www.mbusa.com .
Each route can include up to four way points.
Once a route has been received by the naviga-
tion system, you will see the Do you want to
start route guidance? Destination
Received destination has been saved
in "Previous destinations". message on
the multimedia system display.
The route is saved. X
To start route guidance: select Yes .
An overview of the route is shown in the dis-
play.
If you select No , the saved route can be called
up later in the navigation menu. X
Select Start .
Route guidance starts.
Downloaded and saved routes can be called up
again.
Speed alert You can define the upper speed limit, which
must not be exceeded by the vehicle.
If the vehicle exceeds the set speed, a message
is sent to the Customer Assistance Center. The
Customer Assistance Center then forwards this
information to you.
You can select the way in which you receive this
information beforehand. Possible options
include text message, e-mail or an automated
call.320
Features
Stowage and features

The data you receive contains the following
information: R
the location where the speed limit was excee-
ded R
the time at which the speed limit was excee-
ded R
the selected speed limit which was exceeded
Geo fencing Geo fencing allows you to select areas which the
vehicle should not enter or leave. You will be
informed if the vehicle crosses the boundaries
of the selected areas. You can select the way in
which you receive this information beforehand.
Possible options include text message, e-mail or
an automated call.
The area can be determined as either a circle or
a polygon with a maximum of ten corners. You
can specify up to ten areas simultaneously. Dif-
ferent settings are possible for each area.
These settings can be called up under "Owners
Online" at http://www.mbusa.com.
Alternatively, you can also trigger an Info call
and notify the customer service representative
that you wish to activate geo-fencing.
Currently inactive areas can be activated by text
message.
Triggering the vehicle alarm With this function, you can trigger the vehicle's
panic alarm via text message. An alarm sounds
and the exterior lighting flashes. Depending on
the setting, the panic alarm lasts five or ten sec-
onds. Afterwards, the alarm switches off.
Garage door opener
General notes The HomeLink ®
garage door opener integrated
in the rear-view mirror allows you to operate up
to three different door and gate systems.
Use the integrated garage door opener only on
garage doors that: R
have safety stop and reverse features and R
meet current U.S. federal safety standards
Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote control. Please also read the operating instruc-
tions for the garage door system.
When programming a garage door opener, park
the vehicle outside the garage. Do not run the
engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage
door opener, contact a Mercedes-Benz Service
Center.
Alternatively, you can call the following tele-
phone assistance services: R
USA: Mercedes-Benz Customer Assistance
Center at 1-800 FOR-MERCEDES R
Canada: Customer Service at
1-800-387-0100 R
HomeLink ®
hotline 1-800-355-3515 (free of
charge)
More information on HomeLink ®
and/or com-
patible products is also available online at
http://www.homelink.com.
Notes on the declaration of conformity
( Y
page 30).
USA: FCC ID: CB2HMIHL4
Canada: IC: 279B-HMIHL4
Important safety notes
G WARNING
When you operate or program the garage door
with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage door. There is a risk of injury.
When using the integrated garage door
opener, always make sure that nobody is
within the range of movement of the garage
door.
G WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. Features 321
Stowage and features Z

sudden loss of pressure, bring the vehicle to a
halt by braking carefully. Avoid abrupt steering
movements.
The tire pressure monitor has a yellow warning
lamp in the instrument cluster for indicating
pressure loss or a malfunction. Whether the
warning lamp flashes or lights up indicates
whether a tire pressure is too low or the tire
pressure monitor is malfunctioning: R
if the warning lamp is lit continuously, the tire
pressure on one or more tires is significantly
too low. The tire pressure monitor is not mal-
functioning. R
if the warning lamp flashes for approximately
a minute and then remains lit constantly, the
tire pressure monitor is malfunctioning.
In addition to the warning lamp, a message
appears in the multifunction display. Observe
the information on display messages
( Y
page 273).
It may take up to ten minutes for a malfunction
of the tire pressure monitor to be indicated. A
malfunction will be indicated by the tire pres-
sure warning lamp flashing for approximately
one minute and then remaining lit. When the
malfunction has been rectified, the tire pressure
warning lamp goes out after a few minutes of
driving.
The tire pressure values indicated by the on-
board computer may differ from those meas-
ured at a gas station with a pressure gage. The
tire pressures shown by the on-board computer
refer to those measured at sea level. At high
altitudes, the tire pressure values indicated by a
pressure gage are higher than those shown by
the on-board computer. In this case, do not
reduce the tire pressures.
The operation of the tire pressure monitor can
be affected by interference from radio transmit-
ting equipment (e.g. radio headphones, two-way
radios) that may be being operated in or near the
vehicle.
Checking the tire pressure electroni-
cally X
Make sure that the SmartKey is in position H
( Y
page 140) in the ignition lock. X
Press the Y or e button on the steering
wheel to select the Serv. menu. X
Press the c or d button to select
Tire Pressure . X
Press v .
The current tire pressure of each tire is shown
in the multifunction display.
If the vehicle has been parked for longer than
20 minutes, the Tire pressure will be
displayed after driving a few minutes
message appears.
After a teach-in process, the tire pressure mon-
itor automatically detects new wheels or new
sensors. As long as a clear allocation of the tire
pressure value to the individual wheels is not
possible, the Tire Pressure Monitor Active
display message is shown instead of the tire
pressure display. The tire pressures are already
being monitored.
If an emergency spare wheel is mounted, the
system may continue to show the tire pressure
of the wheel that has been removed for a few
minutes. If this occurs, note that the value dis-
played for the position where the spare wheel is
mounted is not the same as the current tire
pressure of the emergency spare wheel.
Tire pressure monitor warning mes-
sages If the tire pressure monitor detects a pressure
loss in one or more tires, a warning message is
shown in the multifunction display. The yellow
tire pressure warning lamp then lights up. R
If the Please Correct Tire Pressure
message appears in the multifunction display,
the tire pressure in at least one tire is too low.
The tire pressure must be corrected when the
opportunity arises. R
If the Check Tires message appears in the
multifunction display, the tire pressure in at
least one tire has dropped significantly. The
tires must be checked. R
If the Warning Tire Malfunction message
appears in the multifunction display, the tire
pressure in at least one tire has dropped sud-
denly. The tires must be checked.
Be sure to observe the instructions and safety
notes in the display messages in the "Tires" sec-
tion ( Y
page 273).
If the wheel positions on the vehicle are rotated,
the tire pressures may be displayed for the
wrong positions for a short time. This is rectified
after a few minutes of driving, and the tire pres-
sures are displayed for the correct positions. Tire pressure 363
Wheels and tires Z

Information regarding technical data
i The dat a state d her e specifically refers to a
vehicl e wit h standard equipment. Consult an
authorize d Mercedes-Ben z Cente r for th e
dat a for all vehicl e variants and trim levels.
Vehicle electronics
Installing two-way radios and mobile
phones (RF transmitters)
G WARNIN G
The electromagneti c radiation from two-way
radios can interfere wit h th e vehicl e electron -
ics if two-way radios are manipulated or ret -
rofitte d incorrectly. This could jeopardiz e th e
operating safet y of th e vehicle. Ther e is a ris k
of an accident.
You should hav e all wor k on electrical and
electronic component s carried out at a quali-
fie d specialist workshop.
G WARNIN G
If you incorrectl y operate two-way radios in
th e vehicle, th e electromagneti c radiation
may interfere wit h th e vehicl e electronics , for
exampl e if:R
th e two-way radi o is no t connecte d to an
exterio r antennaR
th e exterio r antenna is no t correctl y moun -
te d or is no t low-reflection
This could jeopardiz e th e operating safet y of
th e vehicle. Ther e is a ris k of an accident.
Hav e th e low-reflection exterio r antenna
installed at a qualified specialist workshop.
Always connec t two-way radios to th e low-
reflection exterio r antenna when operating in
th e vehicle.
! The operating permit may be invalidated if
th e instruction s for installation and use of
two-way radios are no t observed. In particular, th e followin g condition s must be
complied with: R
only approve d wavebands may be used R
observ e th e maximum permissible output
in these wavebands R
only approve d antenna position s may be
used
Excessiv e levels of electromagneti c radiation
may caus e damag e to your healt h and th e healt h
of others. Using an exterio r antenna takes int o
accoun t curren t scientific discussion s relating
to th e possible healt h hazards that may result
from electromagneti c fields.
The fo llowin g a
ntenna position s may be used for
th e correc t installation of two-way radios:
Approved antenna position s
C
Rear roo f areaD
Rear fender
i On th e rear fenders, it is recommended to
position th e antenna on th e side of th e vehicl e
closes t to th e center of th e road .
Use Technical Specification ISO/TS 2160 9
(Road Vehicles – "EM C guidelines for installa-
tion of aftermarket radi o frequency transmitting
equipment") when installin g wireless devices.
Observ e th e legal requirements for accessory
parts.
If your vehicl e has installation s for two-way radi o
equipment, use th e power suppl y or antenna
connection s intended for use wit h th e basic wir-
ing . Be sur e to observ e th e manufacturer' s Sup -
plemen t when installing.
Deviation s wit h respec t to frequency bands,
maximum transmission output s or antenna
position s must be approve d by Mercedes-Benz.384
Vehicle electronics
Technical data

The maximum transmission output (PEAK) at the
base of the antenna must not exceed the fol-
lowing values:
Frequency band Maximum
transmission
output
Short wave
3 - 54 MHz 100 W
4 m waveband
74 - 88 MHz 30 W
2 m waveband
144 - 174 MHz 50 W
Trunked radio system/
Tetra
380 - 460 MHz 10 W
70 cm waveband
400 - 460 MHz 35 W
Mobile communications
(2G/3G/4G) 10 W
The following can be used in the vehicle without
restrictions: R
Two-way radios with a maximum transmission
output of up to 100 mW R
Two-way radios with transmitter frequencies
in the 380 - 410 MHz waveband and a maxi-
mum transmission output of up to 2 W
(trunked radio/Tetra) R
Mobile phones (2G/3G/4G)
There are no restrictions when positioning the
antenna on the outside of the vehicle for the
following wavebands: R
Trunked radio system/Tetra R
70 cm waveband R
2G/3G/4G Identification plates
Vehicle identification plate with vehi-
cle identification number (VIN) X
Open the driver's door.
You will see vehicle identification plate C .
Example: vehicle identification plate (USA only)
D
Paint code