2012 MERCEDES-BENZ GLK SUV lane assist

R
you have switched on the turn signals. In
this case, the warnings are suppressed for
a certain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive
If Adaptive
Adaptive is selected, no warning vibration
occurs if:
R you have switched on the turn signals. In
this case, the warnings are suppressed for
a certain period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
R you 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 recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a motor-
way.
R the system recognises solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Driving Assistance package
General notes The Active Driving Assistance package con-
sists of DISTRONIC PLUS (Y
page 178), Active
Blind Spot Assist (Y page 203) and Active
Lane Keeping Assist (Y page 210).
Active Blind Spot Assist Important safety notes
G
WARNING
Active Blind Spot Assist is only an aid and may
detect vehicles/obstacles incorrectly or not
at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R the rear and/or front sensors are dirty.
Active Blind Spot Assist may not detect nar-
row vehicles, such as motorcycles or bicycles,
or only detect them too late. It cannot detect
vehicles which are overtaken at a small dis-
tance and then enter the blind spot area.
Active Blind Spot Assist cannot detect road
and traffic conditions. It is not a substitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions and your surroundings. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers.
Active Blind Spot Assist uses a radar sensor
system to monitor the area to the sides of
your vehicle which are behind the driver. A
warning display in the exterior mirrors draws
your attention to vehicles detected in the
monitored area. If you then switch on the cor-
responding turn signal to change lane, you
will also receive an optical and audible colli-
sion warning. If a risk of lateral collision is Driving syste
ms
207Driving an d parking Z

detected, corrective braking may help you
avoid a collision. To support the course-cor-
recting brake application, Active Blind Spot
Assist also uses the forward-facing radar sen-
sor system. Active Blind Spot Assist supports
you from a speed of approximately 30 km/ h.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities (Y page 375).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be activated (Y page 242) and operational.
Monitoring range of the sensors G
WARNING
Active Blind Spot Assist monitors certain
areas in the immediate vicinity of your vehicle.
Vehicles that approach and drive past at high
speeds are not detected. No visual nor audi-
ble warnings are emitted and the system does
not brake the vehicle to correct your course.
If the lanes are very wide, it may not be pos-
sible to monitor the complete width of the
neighbouring lane. For this reason, vehicles in
the next lane may not be detected, especially
if they are driving in a staggered formation.
This may be the case if vehicles are driving at
the edge of their lane that is furthest away
from your vehicle.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
Active Blind Spot Assist monitors the area up
to three metres behind your vehicle and
directly next to your vehicle as shown in the
diagram. For this purpose, Active Blind Spot
Assist uses radar sensors in the rear bumper. Example: Saloon
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 at the edge
of their lane nearest your vehicle.
Due to the nature of the system:
R warnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders.
R warnings may be interrupted when driving
alongside long vehicles, for example lor-
ries, for a prolonged time.
Two Active Blind Spot Assist radar sensors
are integrated into the front and rear bumpers
respectively. An additional radar sensor is
located behind the cover in the radiator grille.
Make sure that the sensors and the areas
around them are free of dirt, ice or slush. The
rear sensors must not be covered, e.g. by
bicycle racks or overhanging loads. Following
a severe impact or in the event of damage to
the bumpers, have the function of the sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work
properly. 208
Driving systemsDriving and parking

Example: vehicles with automatic transmission
Either a very slight course-correcting brake
application, or none at all, may occur if:
R there are vehicles or obstacles, e.g. crash
barriers, on both sides of your vehicle.
R a vehicle approaches too closely on the
side.
R you have adopted a sporty driving style with
high cornering speeds.
R you brake or accelerate decisively.
R a driving safety system intervenes, such as
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is deactivated.
R the Off-road program is activated.
R a loss of tyre pressure or a defective tyre is
detected.
Activating Active Blind Spot Assist
X Make sure that the radar sensor system
(Y page 242) and Active Blind Spot Assist
(Y page 237) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :in the exterior mirrors
light up red for approximately
1.5 second s andthen turn yellow.
Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. Active Blind Spot Assist is
then deactivated. The indicator lamp lights up
yellow in the exterior mirrors and the Active
Active
Blind Blind Spot
SpotAssist
Assist currently
currently unavail‐
unavail‐
able See Owner's Manual
able See Owner's Manual message
appears in the multifunction display. Active Lane Keeping Assist Important safety notes
G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid and
may detect the lane markings on the road
incorrectly or not at all.
The system may be impaired or may not func-
tion if:
R several or no lane markings for a single lane
are present.
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray.
R there is glare, e.g. from oncoming traffic,
the sun, or reflection from other vehicles.
R the windscreen is dirty, misted up or cov-
ered, for instance by a sticker, in the vicinity
of the camera.
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected.
R the lane markings on the road are unclear,
e.g. near roadworks.
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
R the road is narrow and winding.
Active Lane Keeping Assist cannot detect
road and traffic conditions. It is not a substi-
tute for attentive driving. You are responsible
for the vehicle's speed, braking in good time,
and steering correctly. Always adapt your
driving style to suit the prevailing road and
weather conditions. Always pay attention to
traffic conditions and your surroundings. Oth-
erwise, you may fail to recognise dangers in
time, cause an accident and injure yourself
and others.
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of a camera 210
Driving systemsDriving an
d parking

mounted at the top of the windscreen. Active
Lane Keeping Assist detects lane markings on
the road and warns you before you leave your
lane unintentionally. If you do not react to the
warning, a lane-correcting application of the
brakes can bring the vehicle back into the
original lane. :
Active Lane Keeping Assist camera
If you select km kmon the on-board computer in
the Display unit Speed-/odometer:
Display unit Speed-/odometer:
function ( Ypage 238), Active Lane Keeping
Assist is activated starting at a speed of
60 km/h. If the miles
miles display unit is selected,
the assistance range begins at 40 mph.
Warning vibration in the steering wheel
A warning may be given if a front wheel
passes over a lane marking. It will warn you
by means of intermittent vibration in the
steering wheel for up to 1.5 seconds.
In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a motor-
way.
R the system recognises solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend. Lane-correcting brake application G
WARNING
Active Lane Keeping Assist does not keep
your vehicle in its lane. It is only an aid
designed to assist driving. It is not a substitute
for attentive driving. Corrective braking may
not always be sufficient to return your vehicle
to its original lane. In such cases, you must
steer the vehicle yourself to ensure that it
does not leave the lane.
Active Lane Keeping Assist cannot detect the
current traffic situation or other road users.
Ensure at all times that there is sufficient lat-
eral distance between you and other road
users or obstacles. In rare cases, broken lines
or certain structures on the road surface may
be detected by the system as solid lane mark-
ings. You can, for example, countersteer gen-
tly at any time to cancel inappropriate braking
action, e.g. if you intentionally drive across a
solid lane marking.
Active Lane Keeping Assist cannot take
weather conditions into account.
You are responsible for the vehicle's speed,
correct steering and for braking in good time.
Always adapt your driving style to suit the
prevailing road and weather conditions.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others.
If you leave your lane under certain circum-
stances, the vehicle will brake briefly on one
side. This is designed to help you bring the
vehicle back into the original lane.
This function is available in the range between
60 km/h and 200 km/h.
A lane-correcting brake application can only
be made after driving over a solid, recognis-
able lane marking. Before this, a warning
must be emitted by means of intermittent
vibration in the steering wheel. In addition, a
lane with lane markings on both sides must
be recognised. The brake application also
slightly reduces driving speed. Driving systems
211Driving and parking Z

If a lane-correcting brake application occurs,
the following appears in the multifunction dis-
play: Example: vehicles with automatic transmission
i
A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if:
R you clearly and actively steer, brake, or
accelerate.
R you cut the corner on a sharp bend.
R you have switched on the turn signals.
R a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration.
R on vehicles with a trailer tow hitch, the
electrical connection to the trailer has been
correctly established.
R ESP ®
is deactivated.
R the transmission is not in position D.
R the Off-road program is activated.
R a loss of tyre pressure or a defective tyre
has been detected and displayed.
Active Lane Keeping Assist does not detect
road and traffic conditions. An inappropriate
brake application may be interrupted at any
time if:
R you steer slightly in the opposite direction.
R you use a turn signal.
R you clearly brake or accelerate. A lane-correcting brake application is inter-
rupted automatically if:
R
a driving safety system intervenes, such as
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognised.
Activating Active Lane Keeping Assist Example: vehicles with automatic transmission
X
Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard
Standard orAdaptive Adaptive .
Symbol :appears in the multifunction
display.
If you drive at speeds above 60 km/h and
lane markings are detected, symbol :is
shown in green. Active Lane Keeping Assist
is ready for use.
If Standard Standard is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this case, the warnings are suppressed
for a certain period of time.
R a driving safety system intervenes, such
as ABS, BAS or ESP ®
.
If Adaptive Adaptive is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this case, the warnings are suppressed
for a certain period of time.
R a driving safety system intervenes, such
as ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid
an obstacle or change lane quickly.
R you cut the corner on a sharp bend. 212
Driving systemsDriving and parking

Text field
:shows the selected menu or
submenu as well as display messages.
i You can set the time using the audio sys-
tem or COMAND Online; see the separate
operating instructions.
Vehicles with manual transmission: the
indicators in the lower part of the multifunc-
tion display differ from the display shown
here.
The following messages can appear in the
multifunction display:
Z Gearshift recommendation
(Ypage 155)
¯ Cruise control (Y page 173)
È SPEEDTRONIC (Y page 176)
è Rear window wiper
(Ypage 123)
_ Adaptive Main-beam Assist
(Ypage 116)
À ATTENTION ASSIST
(Ypage 201)
¤ ECO start/stop function
(Ypage 150)
Ä Speed Limit Assist
(Ypage 202)
à Lane Keeping Assist
(Ypage 205) or Active Lane
Keeping Assist (Y page 210)
ë HOLD function (Y page 186)
Ä PRE-SAFE®
Brake (Y page 69)
fDSR DSR DSR (Y
page 213)
120 km/h! 120 km/h! Maximum permissible speed
exceeded (only for certain coun-
tries) Menu overview
Operating the on-board computer
(Y page 228). Depending on the equipment fitted in the
vehicle, you can call up the following menus:
R
Trip Trip menu (Y page 230)
R Navi Navi menu (navigation instructions)
(Y page 232)
R Audio
Audio menu (Y page 233)
R Tel
Tel menu (telephone) (Y page 234)
R Assist.
Assist. menu (assistance)
R Serv.
Serv. menu (Y page 238)
R Settings
Settings menu (Ypage 238)
The Audio
Audio ,Navi
Navi andTel
Tel menus differ slightly
in vehicles with an audio system and in vehi-
cles with COMAND Online. The examples
given in this Owner's Manual apply to vehicles
equipped with COMAND Online. Trip menu
Standard display X
Press and hold the %button on the
steering wheel until the Trip Tripmenu with
trip meter :and total distance
recorder ;is shown.
Trip computer "From start" or "From
reset" Example: "From start" trip computer
:
Distance
; Time 230
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

or
X
To exit the telephone book: press the
~ or% button.
Redialling The on-board computer saves the last names
or numbers dialled in the redial memory.
X Press the =or; button on the steer-
ing wheel to select the Tel
Tel menu.
X Press the 6button to switch to the
redial memory.
X Press the 9or: button to select the
desired name or number.
X Press the 6ora button to start dial-
ling.
or
X If you do not want to make a call: press
the ~ or% button. Assistance menu
Introduction In the
Assist. Assist. menu, you have the following
options:
R show Speed Limit Assist and activate/
deactivate its message function
(Y page 236)
R show the distance display ( Ypage 236)
R activate/deactivate the PRE-SAFE ®
Brake
(Y page 237)
R activate/deactivate ATTENTION ASSIST
(Y page 237) R
activate/deactivate Blind Spot Assist or
Active Blind Spot Assist (Y page 237)
R activate/deactivate Lane Keeping Assist or
Active Lane Keeping Assist (Y page 238)
Speed Limit Assist Displaying Speed Limit Assist
X
Press the =or; button on the steer-
ing wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Speed Lim. Asst.
Speed Lim. Asst..
X Press the abutton.
Under certain conditions, detected speed
limits are shown in the multifunction dis-
play (Y page 202).
Activating/deactivating the Speed Limit
Assist message function
X Press the =or; button on the steer-
ing wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Speed Lim. Asst.
Speed Lim. Asst..
X Press the abutton.
The multifunction display shows Speed
Limit Assist.
X Press the :button.
The current selection is displayed.
X To activate or deactivate: pressa.
If the Speed Limit Assist message function
is activated, a detected speed limit is auto-
matically displayed for five seconds. Other
items in the multifunction display are not
shown during this time.
If Speed Limit Assist is operational and the
message function is activated, the multifunc-
tion display shows the Äsymbol when the
ignition is switched on.
Showing the distance display This function is only available with DIS-
TRONIC PLUS.236
Displays and operation (12-button multifunction steering wheel)On-board computer and displays

For further information about Blind Spot
Assist, see (Y page 203).
For further information about Active Blind
Spot Assist, see (Y page 203).
Activating/deactivating Lane Keeping
Assist X
Press the =or; button on the steer-
ing wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Lane Keep. Asst.
Lane Keep. Asst.
X Press the abutton.
The current selection is displayed.
X Press ato confirm.
X Press the :or9 button to set Off
Off ,
Standard
Standard orAdaptive
Adaptive .
X Press the abutton to save the setting.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the Ãsymbol
appears in the multifunction display when the
ignition is on.
For further information about Lane Keeping
Assist, see (Y page 205).
For further information about Active Lane
Keeping Assist, see (Y page 210).Service menu
In the
Serv. Serv. menu, you have the following
options:
R Call up display messages (Y page 245)
R Restart the tyre pressure loss warning sys-
tem (Y page 355)
R Call up when a service is due
(Y page 312) Settings menu
Introduction In the
Sett. Sett. menu, you have the following
options:
R change the instrument cluster settings
(Y page 238)
R change the light settings ( Ypage 239)
R change the vehicle settings (Y page 241)
R change the auxiliary heating settings
(Y page 242)
R change the convenience settings
(Y page 243)
R restore the factory settings (Y page 244)
Instrument cluster Selecting the unit of measurement for dis-
tance
The Display unit Speed-/odometer: Display unit Speed-/odometer:
function allows you to choose whether cer-
tain displays appear in kilometres or miles in
the multifunction display.
You can determine whether the multifunction
display shows some messages in miles or kil-
ometres.
X Press the =or; button on the steer-
ing wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Inst. cluster
Inst. cluster submenu.
X Press ato confirm.
X Press the :or9 button to select the
Display unit Speed-/odometer:
Display unit Speed-/odometer: func-
tion.
You will see the selected setting: km kmor
miles
miles.
X Press the abutton to save the setting. 238
Displays and operation (12-button multifunction steering wheel)On-board computer and displays