2016 MERCEDES-BENZ GLC-Class Owner's Manual

125 mph (200 km/h) range. If ATTEN-
TION ASSIST detects typical indicators of fati-
gue or increasing lapses in concentration on
the part of the driver, it suggests taking a
break.
Important safety notes
ATTENTION ASSIST is only an aid to the
driver. It might not always recognize fatigue
or increasing inattentiveness in time or fail to
recognize them at all. The system is not a
substitute for a well-rested and attentive
driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
Rif the length of the journey is less than
approximately 30 minutes
Rif the road condition is poor, e.g. if the sur-face is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
Rif you are predominantly driving slower
than 37 mph (60 km/h) or faster than
125 mph (200 km/h)
Rif you are driving with the active Steer
Assist of DISTRONIC PLUS
Rif the time has been set incorrectly
Rin active driving situations, such as when
you change lanes or change your speed
The ATTENTION ASSIST tiredness assess-
ment is deleted and restarted when continu-
ing the journey, if:
Ryou switch off the engine
Ryou take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break
Displaying the attention level
You can have current status information dis-
played in the assistance menu (
Ypage 252)
of the on-board computer.
XSelect the Assistance display for Attention
Assist using the on-board computer
(
Ypage 251).
The following information is displayed:
Rlength of the journey since the last break.
Rthe attention level determined by ATTEN-
TION ASSIST ( Attention Level
), dis-
played in a bar display in five levels from
high to low.
RIf ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the System Suspended
message
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST
XActivate ATTENTION ASSIST using the on-
board computer (
Ypage 253).
The system determines the attention level
of the driver depending on the setting
selected:
Selection Standard
: the sensitivity with
which the system determines the attention
level is set to normal.
Selection Sensitive
: the sensitivity is set
higher. The attention level detected by Atten-
tion Assist is adapted accordingly and the
driver is warned earlier.
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When ATTENTION ASSIST is deactivated, the
ésymbol appears in the multifunction
display in the assistance graphic display.
When ATTENTION ASSIST has been deactiva-
ted, it is automatically reactivated after the
engine has been stopped. The sensitivity
selected corresponds to the last selection
activated (standard/sensitive).
Warning in the multifunction display
If fatigue or increasing lapses in concentra-
tion are detected, a warning appears in the
multifunction display: ATTENTION ASSIST
Take a Break!.
In addition to the message shown in the mul-
tifunction display, you will then hear a warn-
ing tone.
XIf necessary, take a break.
XConfirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects increasing lapses in concentra-
tion, you will be warned again after
15 minutes at the earliest. This will only hap-
pen if ATTENTION ASSIST still detects typical
indicators of fatigue or increasing lapses in
concentration.
If a warning is output in the multifunction dis-
play, a service station search is performed in
COMAND. You can select a service station
and navigation to this service station will then
begin. This function can be activated and
deactivated in COMAND.
Traffic Sign Assist
General notes
Traffic Sign Assist displays the maximum
speed permitted to the driver in the instru-
ment cluster. The data and general traffic reg-
ulations stored in the navigation system are
used to determine the current speed limit. Traffic Sign Assist is a map-based system,
and thus, traffic signs put up temporarily (e.g.
near roadworks) are not detected.
If a traffic sign that is relevant to your vehicle
is passed, the display of the speed limits is
updated.
Traffic signs with a restriction indicated by an
additional sign (e.g. in wet conditions) are
also shown.
The traffic signs are only displayed with the
restrictions if:
Rthe regulation must be observed with the
restriction, or
RTraffic Sign Assist is unable to determine
whether the restriction applies
If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the
available sources, no speed limit is displayed
in the instrument cluster either.
Traffic Sign Assist is not available in all coun-
tries. In this case, symbol :is shown in the
assistance graphic display (
Ypage 251).
Important safety notes
Traffic Sign Assist is only an aid and is not
always able to correctly display speed limits.
Traffic signs always have priority over the
Traffic Sign Assist display.
The system may be either functionally
impaired or temporarily unavailable if the
information in the digital street map of the
navigation system is incorrect or out of date.
216Driving systems
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Instrument cluster display
Displaying the assistance graphic
XCallup the assistance graphics display
function using the on-board computer
(
Ypage 251).
XSe lect the Traffic Sign Assist display.
Detected traff icsigns are displayed in the
instrument cluster.
Speed limit with unknown restriction
:Maximum permitted speed
;Maximum permitted speed for vehicles
for whic h the restriction inthe additional
sign isrelevant
=Ad ditional sign for unkno wnrestriction
A maximum permitted speed of 80 mph
(80 km/h) and a speed limit of 60 km /h
(60 mph) with an unkno wnrestriction apply.
Speed limits in wet conditions
:Maximum permitted speed
;Ad ditional signs for wet cond itions
A maximum permitted speed of 80 mph
(80 km/h) applies in wet cond itions and if Traffic
Sign Assist has determined that the
restriction must beobserved.
Canceling the speed limit
The speed limit no longer applies:.
iThe unit for the speed limit (km/h or mph)
depends on the country inwhich you are
driving. It isgeneral lyne ither shown on the
traff icsign nor on the instrument cluster
but must betaken into account when
observing the maximum permitted speed.
Lane Tracking package
General notes
The Lane Tracking package consists of Blind
Sp ot Assist (
Ypage 217) and Lane Keepin g
Assist (
Ypage 220).
Blind Spot Assist
Gene ral notes
Blind Spot Assist mon itors the areas on either
side of the vehicle that are not vis ibleto the
driver with two lateral, rear-facing radar sen-
sors. A warning displayinthe exterior mirrors
draws your attention to vehicles detected in
the mon itored area. Ifyou then switch on the
corresponding turn signal to change lane, you
will also receive an optical and audible warn-
ing.
Blind Spot Assist supports you from a speed
of approximately 20 mph (30 km/h).
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Important safety notes
GWARNING
Blin dSpo t Assist does not react to:
Rvehicles overtaken too closely on the side,
plac ing them inthe blind spot area
Rvehicleswhic happr oach with a large speed
diff erential and overtake your veh icle
As a result, BlindSpo t Assist may not give
warnings insuch situations. There isa risk of
an acc ident.
Always observe the traff icconditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles.
iUSA only:
This device has been approved by the FCC
as a "Vehicular Radar System". The radar
sensor is intended for use in an automotive
radar system only. Removing, tampering
with, or altering the device will void any
warranties, and is not permitted by the
FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Radar sensors
The radar sensors for Blind Spot Assist are
integrated into the rear bumper. Make sure
that the bumpers are free from dirt, ice or
slush. The sensors must not be covered, for
example by cycle rac ks or ov
erhanging loads.
Following a severe impact or in the event of
damage to the bumpers, have the function of
the radar sensors checked at a qualified spe-
cialist workshop. Blind Spot Assist may no
longer work properly. Monitoring area
In particular, the detection of obstacles can
be impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is poor visibility, e.g. due to fog, heavy
rain, snow or spray
Rthere are narrow vehicles, e.g. motorcycles
or bicycles
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or similar lane borders
Vehicles in the monitoring range are then not indicated.
218Driving systems
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Blind Spot Assist monitors the area up to 10 ft
(3 m) behind your vehicle and directly next to
your vehicle, as shown in the diagram.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane. This may be
the case if there are vehicles driving at the
inner edge of their lanes.
Due to the nature of the system:
Rwarnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders.
Rthe warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
Warning display
:Warning display Blind Spot Assist is not active at speeds below
approximately 20 mph (30 km/h). Vehicles in
the monitoring range are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp
:on the corre-
sponding side lights up red. This warning is
always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 7 mph (12 km/h).
If you select the reverse gear, Blind Spot
Assist is not operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the
surroundings.
Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp :flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp :. There are no further warning tones.
Switching on Blind Spot Assist
XMake sure that Blind Spot Assist is activa-
ted in the on-board computer
(
Ypage 253).
XTurn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the exterior mirrors
light up red until the engine is started.
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Z

Display in theassistanc egraphic
Whe nBlind Spot Assis tis activated, gra y
rada rwave spropagatin gbackwards appea r
next to th evehicl ein th eassistanc edisplay in
th emultifunction display. Above aspeed of
20 mph (30 km/h), th ecolor of th erada r
wave sin th eassistanc edisplay changes to
green ;.Blind Spot Assis tis then read yfo r
use.
Lan eKeeping Assis t
General notes
LaneKeepin gAssis tmonitors th earea in
fron tof your vehicl eby mean sof multifunc-
tion camera :whic his attached behin dth e
to pof th ewindshield. Active Lan eKeepin g
Assis tdetects lan emarking son th eroa dand
can warn you before you leav eyour lan eunin-
tentionally.
This function is available in th erange between
40 mph and 12 0mph (60 km/h and
20 0km/h).
A warnin gmay be given if afron twhee l
passes ove r alan emarking .It will warn you by mean
sof intermittent vibration in th esteer -
in g whee lfo rup to 1. 5seconds.
Important safet ynotes
GWARNIN G
Lan eKeepin gAssis tmay no talways clearly
recogniz elan emarkings.
In this case, Lan eKeepin gAssis tmay:
Rgiv ean unnecessary warnin g
Rnotgiv e a warnin g
There is aris kof an accident.
Always pay particular attention to th etraffic
situation and stay in lane, in particular if
warned by Lan eKeepin gAssist.
GWARNIN G
The Lan eKeepin gAssis twarnin gdoe sno t
return th evehicl eto th eoriginal lane. There is
a ris kof an accident.
You should always steer ,brak eor accelerate
yourself ,in particular if warned by Lan eKeep-
in g Assist.
If you fail to adapt your drivin gstyle, Lan e
Keepin gAssis tcan neither reduce th eris kof
an acciden tno roverride th elaws of physics .
Lan eKeepin gAssis tcanno ttak einto accoun t
th eroad, traffic and weather conditions. Lan e
Keepin gAssis tis merely an aid. You are
responsibl efo rth edistanc eto th evehicl ein
front, fo rvehicl espeed, fo rbrakin gin goo d
time and fo rstayin gin your lane.
The Lan eKeepin gAssis tdoes no tkeep th e
vehicl ein th elane.
The system may be impaire dor may no tfunc-
tion if:
Rthere is poo rvisibility, e.g. due to insuffi-
cient illumination of th eroad, or due to
snow, rain ,fo gor spray
Rthere is glare, e.g. from oncomin gtraffic,
th esun or reflection s(e.g. when th eroa d
surfac eis wet )
Rthewindshield is dirty, fogge dup, damaged
or covered, fo rinstanc eby asticker, in th e
vicinit yof th ecamera
220Driving systems
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Rthere are no, several or unclear lane mark-ings for a lane, e.g. in areas with road con-
struction work
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
Activating/deactivating Lane Keeping
Assist
XTo activate: press button ;.
Indicator lamp :lights up. The Lane
Keeping Assist Onmessage appears in
the multifunction display. If all conditions
have been satisfied, there may be a warn-
ing.
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected, the lines in the assistance graphics display
(
Ypage 251) are shown in green. Lane
Keeping Assist is ready for use.
XTo deactivate: press button;.
Indicator lamp :goes out. Lane Keeping
Assist is deactivated. The Lane Keeping
Assist Offmessage appears in the mul-
tifunction display. Selecting Standard or Adaptive setting
XIn the
DriveAssistmenu on the on-board
computer, select the Lane Keeping
Assistfunction (Ypage 253).
XSelectStandardorAdaptive.
Standard
When Standard
is selected, no warning vibra-
tion occurs if:
Ryou switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
Ra driving safety system intervenes, such as
ABS, BAS or ESP®.
Adaptive
When Adaptive
is selected, no warning vibra-
tion occurs if:
Ryou switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
Ra driving safety system intervenes, e.g.
ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid an
obstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognizes certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on a
bend.
Rthe road has very wide lanes, e.g. a high-
way.
Rthe system recognizes solid lane markings.
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend.
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DrivingAssistance PLUS package
General notes
The Driving Assistanc ePLU Spackage con-
sists of DISTRONIC PLU S (
Ypage 183), Active
Blin dSpot Assis t (
Ypage 222) and Active
Lan eKeepin gAssis t (
Ypage 225).
Active Blind Spot Assist
General notes
Active Blin dSpot Assis tuses aradar sensor
system, pointe dtoward th erea rof th evehi-
cle, to monito rth eare ato th esides of th e
vehicle whic hth edriver is unable to see . A
warnin gdisplay in th eexterio rmirrors draws
your attention to vehicles detecte din th e
monitored area. If you then switch on th ecor-
respondin gturn signal to chang elane, you
will also receiv ean optical and audible warn -
ing. If aris kof latera lcollision is detected,
corrective braking may hel pyou avoid acol-
lision .Before acourse-correcting brake appli -
cation ,Active Blin dSpot Assis tevaluates th e
spac ein th edirection of trave land at th e
sides of th evehicle. Fo rthis, Active Blin dSpot
Assis tuses th eforward-facin gradar sensors.
Active Blin dSpot Assis tsupports you from a
speed of approximately 20 mph (30 km/h).
Important safet ynotes
Active Blin dSpot Assis tis only an aid and is
no t a substitute fo rattentive driving.
GWARNING
Active Blin dSpot Assis tdoe sno treact to :
Rvehicles overtaken to oclosely on th eside,
placin gthem in th eblin dspo tare a
Rvehicles whic happroac hwit h a larg espeed
differential and overtak eyour vehicle
As aresult ,Active Blin dSpot Assis tmay nei-
ther giv ewarnings no rinterven ein suc hsit -
uations. There is aris kof an accident.
Always observ eth etraffic condition scare-
fully, and maintain asaf elatera ldistance.
iUS Aonly: Thi sdevic ehas been approved
by th eFCC as a"Vehicular Radar System".
The radar sensor is intended fo ruse in an
automotive radar system only. Removal,
tampering, or altering of th edevic ewill void
any warranties ,and is no tpermitte dby th e
FCC. Do no ttampe rwith, alter, or use in
any non-approved way.
An yunauthorized modification to this
devic ecould void th euser's authorit yto
operat eth eequipment.
iCanada only: Thi sdevic ecomplies wit h
RSS-210 of Industry Canada. Operation is
subjec tto th efollowing tw oconditions:
1. Thi sdevic emay no tcaus eharmful inter-
ference ,and
2. Thi sdevic emus taccept any interfere
nce
re

ceived, includin ginterferenc ethat may
caus eundesired operation of th edevice.
Removal, tampering, or altering of th e
devic ewill void any warranties ,and is no t
permitted. Do no ttampe rwith, alter, or use
in any non-approved way.
An yunauthorized modification to this
devic ecould void th euser's authorit yto
operat eth eequipment.
Rada rsensor s
The Active Blin dSpot Assis tradar sensor sare
integrated into th efron tand rea rbumper s
and behin d acover in th eradiator trim. Mak e
sur ethat th ebumper sand th ecover in th e
radiator grill are free of dirt, ic eor slush. The
rea rsensor smus tno tbe covered, e.g. by
bicycl eracks or overhangin gloads. Following
a severe impact or in th eevent of damage to
th ebumpers, hav eth efunction of th eradar
sensor schecke dat aqualified specialist
workshop .Active Blin dSpot Assis tmay oth-
erwise no longer wor kproperly.
Monitoring area
GWARNING
Active Blind Spot Assis tdoe sno tdetec tall
traffic situation sand road users. There is a
ris kof an accident.
222Driving systems
Driving an d parking