2019 MERCEDES-BENZ GLE lane assist

cases, the system may make an inappropriate
brake application, e.g. after intentionally driv-
ing over a solid lane marking. There is a risk of an accident.
An inappropriate brake application may be
interrupted at any time if you steer slightly in
the opposite direction. Always make sure that
there is sufficient distance on the side for
other traffic or obstacles. If you leave your lane, under certain circumstan-
ces the vehicle will brake briefly on one side.
This is meant to assist you in bringing the vehicle
back to the original lane.
If a lane-correcting brake application occurs,
display 0043appears in the multifunction display.
A lane-correcting brake application can be made
after driving over a solid or broken lane marking.
Before this, a warning must be given by means of
intermittent vibration in the steering wheel. In
addition, a lane with lane markings on both sides must have been detected.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been detected
in the adjacent lane. The following vehicles can
have an influence on brake application: oncom- ing traffic, vehicles that are overtaking and vehi-cles that are driving parallel to your vehicle.
i A further lane-correcting brake application
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 accel-
erate
R you cut the corner on a sharp bend
R you have switched on the turn signal R
a driving safety system intervenes, e.g. 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 accel-
eration
R ESP ®
is switched off
R the transmission is not in position 005B
R on vehicles with a trailer tow hitch, the elec-
trical connection to the trailer has been cor-
rectly established
R the Off-road program is activated (vehicles
without the Off-road Engineering Package)
R the Off-road or Off-road Plus drive program is
activated (vehicles with the Off-road Engi-
neering Package)
R the LOW RANGE off-road gear is activated
(vehicles with the Off-road Engineering Pack-
age)
R an obstacle has been detected in the lane in
which you are driving
R when a loss of tire pressure or a defective tire
has been detected and displayed
There is a possibility that the Active Lane Keep-
ing Assist could misjudge the given traffic sit-
uation. An inappropriate brake application may
be interrupted at any time if you:
R steer slightly in the opposite direction
R switch on the turn signal
R clearly brake or accelerate
A lane-correcting brake application is interrup-
ted automatically if:
R a driving safety system intervenes, e.g. ESP ®
,
PRE-SAFE ®
Brake or Active Blind Spot Assist
R lane markings are no longer detected
Switching on Active Lane Keeping Assist X Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard Standard orAdaptive
Adaptive (Ypage 238).
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphic are shown in green (Y page 237). Active Lane Keeping
Assist is ready for use.
If Standard Standard is selected, no warning vibration
occurs if: Driving systems
213Driving and parking Z

R
you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
When Adaptive
Adaptive is selected, no warning vibra-
tion occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, e.g.
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 lanes quickly.
R you cut the corner on a sharp bend.
Towing a trailer
When you attach a trailer, make sure you have
correctly established the electrical connection.
This can be accomplished by checking the trailer
lighting. Lane-correcting brake application does not take place when towing a trailer. Active Lane
Keeping Assist is not activated and the lines in
the assistance graphic are gray. Off-road driving systems
4MATIC (permanent four-wheel drive) 4MATIC ensures that all four wheels are perma-
nently driven. Together with ESP ®
and 4ETS, it
improves the traction of your vehicle whenever
a drive wheel spins due to insufficient grip.
If you fail to adapt your driving style, 4MATIC can
neither reduce the risk of accident nor override
the laws of physics. 4MATIC cannot take
account of road, weather and traffic conditions. 4MATIC is only an aid. You are responsible for
the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
your lane.
! Never tow the vehicle with one axle raised.
This may damage the transfer case. Damage
of this sort is not covered by the Mercedes-
Benz Limited Warranty. All wheels must
remain either on the ground or be fully raised. Observe the instructions for towing the vehi-
cle with all wheels in full contact with the
ground. !
A function or performance test should only
be carried out on a two-axle dynamometer.
Before you operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage the
drive train or the brake system.
i In wintry driving conditions, the maximum
effect of 4MATIC can only be achieved if you
use winter tires (M+S tires), with snow chains
if necessary.
Further information about "Driving off-road"
(Y page 165).
DSR (Downhill Speed Regulation) General notes
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The steeper
the downhill gradient, the greater the DSR brak- ing effect on the vehicle. When driving on flat
stretches of road or on an uphill gradient, the
DSR braking effect is minimal or nonexistent.
DSR controls the vehicle’s speed when it is acti-
vated and the transmission is in position 005B,005E
or 005C. You can drive at a higher or a lower speed
than that set on the on-board computer at any
time by accelerating or braking.
Important safety notes G
WARNING
If the speed driven and the set speed deviate and you activate DSR on a slippery road sur-
face, the wheels may lose traction. There is an
increased danger of skidding and accidents.
Before switching DSR on, please take into
consideration the road surface and the differ- ence between driving speed and the set
speed.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor override the laws of physics. DSR cannot take account of
road, weather and traffic conditions. DSR is only
an aid. You are responsible for the distance to
the vehicle in front, for vehicle speed, for brak-
ing in good time and for staying in your lane.
You are always responsible for keeping control
of the vehicle and for assessing whether the
downhill gradient can be managed. DSR may not always be able to keep to the set speed, depend- 214
Driving systemsDriving an
d parking

R
is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning circle
This could impair the handling characteristics.
When towing a trailer, always adjust your speed to the current road and weather conditions. Do
not exceed the maximum permissible speed for
your vehicle/trailer combination. Notes on towing a trailer
General notes !
If you have a trailer tow hitch retrofitted,
changes to the cooling system and drive train may be necessary, depending on the vehicle
type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chassis
frame.
R Do not exceed the legally prescribed maxi-
mum speed for vehicle/trailer combinations
in the relevant country.
This lowers the risk of an accident.
R Only install an approved trailer coupling on
your vehicle.
More information on availability and installa-
tion can be obtained at any qualified special-
ist workshop.
R The bumpers of your vehicle are not suitable
for installing detachable trailer couplings.
R Do not install hired trailer couplings or other
detachable trailer couplings on the bumpers
of your vehicle.
R If you no longer need the ball coupling,
remove it from the ball coupling recess. This
will reduce the risk of damage to the ball cou-
pling.
When towing a trailer, set the tire pressure on
the rear axle of the towing vehicle for the max-
imum load. You will find the values in the tire
pressure table in the fuel filler flap of the vehicle (Y page 369).
Please note that when towing a trailer, the fol-
lowing driving systems have limited availability
or are not available at all:
R Parking Assist PARKTRONIC (Y page 188)
R Blind Spot Assist (Y page 206)
R Active Lane Keeping Assist (Y page 211)On vehicles without level control, the height of
the ball coupling will alter according to the load
placed on the vehicle. If necessary, use a trailer
with a height-adjustable drawbar.
You will find installing dimensions and loads
under "Technical data" (Y page 394).
Driving tips Also observe the notes on pulling away with a
trailer (Y
page 138).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check the
trailer's documents to see what the maximum
permissible speed is for your trailer. Observe the
legally permissible maximum speed in the rele-
vant country.
For certain Mercedes-Benz vehicles, the maxi-
mum permissible rear axle load is increased
when towing a trailer. See "Technical data" to
find out whether this applies to your vehicle
(Y page 394). If you utilize any of the added
maximum rear axle load when towing a trailer,
the vehicle/trailer combination may not exceed
a maximum speed of 60 mph (100 km/h) for
reasons concerning the operating permit. This
also applies in countries in which the maximum
permissible speed for car/trailer combinations
is greater than 60 mph (100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without a trailer.
Use the left-hand steering wheel paddle shifter
to shift into a lower gear in good time on long
and steep downhill gradients.
This also applies if you have activated cruise
control or Active Distance Assist DISTRONIC.
This will use the braking effect of the engine, so that less braking will be required to maintain the
speed. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly. If you need additional
braking, depress the brake pedal repeatedly
rather than continuously.
Driving tips If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary. Towing a trailer
221Driving and parking Z

X
Slide bolt 0083into the hole in the ball coupling
recess and the ball coupling to the stop. X
Secure the bolt using spring cotter 0084.X
Check the ball coupling, bolt and spring cotter
for correct installation.
If the ball coupling cannot be correctly mounted,
remove the ball coupling. Under these circum-
stances, the ball coupling must not be used for
trailer towing.
Have the entire trailer tow hitch checked at a
qualified specialist workshop. Coupling up a trailer
! Do not connect the trailer's brake system (if
featured) to the hydraulic brake system of the towing vehicle, as the latter is equipped with
an anti-lock brake system. Doing so will result
in a loss of function of the brake systems of
both the vehicle and the trailer.
X Shift the transmission to position 005D.
X Apply the vehicle's electric parking brake.
X Start the engine.
X Vehicles with AIRMATIC Package: select
normal level and the Comfortdrive program.
X Switch off the engine.
X Close the doors and tailgate.
X Couple up the trailer.
X Establish the electrical connection between
the vehicle and the trailer.
X Check that the trailer lighting system is work-
ing.
X Push the combination switch upwards/down-
wards and check whether the corresponding
turn signal on the trailer flashes.
A trailer that is connected is recognized only
when the electrical connection is established
correctly and when the lighting system is work-
ing properly. The function of other systems also depends on this, for example:
R ESP ®
R Parking Assist PARKTRONIC
R Active Parking Assist
R Parking Package with rear view camera
R Active Blind Spot Assist
R Active Lane Keeping Assist
i Vehicles with the AIRMATIC Package: if you
couple up a trailer, the vehicle always remains
at normal level. When coupling up a trailer,
please observe the following:
R If the normal level has not been set man-
ually, the vehicle is automatically lowered
to normal level. This is the case if a speed of
5 mph (8 km/h) is reached.
R The Sport drive program is not available.
These restrictions apply to all accessories
powered through a connection to the trailer
power socket of your vehicle, e.g. a bicycle
carrier.
Observe the maximum permissible trailer
dimensions (width and length). Towing a trailer
223Driving and parking Z

X
Press the 0061or0076 button to start dialing.
or
X To exit the redial memory: press the0076
or 0038 button. Assistance menu
Introduction Depending on the equipment installed in the
vehicle, you have the following options in the
DriveAssist
DriveAssist menu:
R Displaying the assistance graphic
(Y page 237)
R Activating/deactivating the Traffic Sign
Assist display (Y page 237)
R Activating or deactivating Active Steering
Assist (Y page 237)
R Activating/deactivating Active Brake Assist
(Y page 238)
R Activating/deactivating Active Brake Assist
with cross-traffic function (Y page 238)
R Activating/deactivating ATTENTION ASSIST
(Y page 238)
R Activating/deactivating Blind Spot Assist or
Active Blind Spot Assist (Y page 238)
R Activating/deactivating Lane Keeping Assist
or Active Lane Keeping Assist (Y page 238)
Displaying the assistance graphic X
Press the 0059or0065 button on the steering
wheel to select the DriveAssist
DriveAssist menu.
X Press 0063or0064 to select Assistance
Assistance
Graphic Graphic.
X Confirm by pressing 0076on the steering
wheel.
The multifunction display shows the Active
Distance Assist DISTRONIC distance display
on the assistant display.
The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems: R
Traffic Sign Assist (Y page 205)
R Active Distance Assist DISTRONIC
(Y page 171)
R Active Brake Assist (Y page 67)
R Active Brake Assist with cross-traffic func-
tion (Y page 73)
R ATTENTION ASSIST (Y page 203)
R Lane Keeping Assist (Y page 207) or Active
Lane Keeping Assist (Y page 211)
R DSR (Y page 214)
R Off-road program (vehicles with Off-Road
Engineering package) (Y page 216)
R Rear window wipers (Y page 118)
X Press 0064to display the ATTENTION ASSIST
assessment.
Traffic Sign Assist You can switch the Traffic Sign Assist message
function on or off in the
Traffic TrafficSign
SignAssist
Assist
menu. When the function is activated, detected traffic signs and information appear in the mul-
tifunction display for five seconds.
X Press the 0059or0065 button on the steering
wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
Traffic Sign Assist
Traffic Sign Assist.
X Confirm by pressing 0076on the steering
wheel.
The current selection appears.
X To activate/deactivate the message func-
tion: press the 0076button again.
For further information about Traffic Sign Assist, see (Y page 205).
Activating or deactivating Active Steer- ing Assist X
Press the 0059or0065 button on the steering
wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
Active Steering Assist
Active Steering Assist.
X Confirm by pressing 0076on the steering
wheel.
The current selection appears.
X To activate/deactivate: press the0076but-
ton again.
When Active Steering Assist is activated, the
multifunction display shows the Active Active
Steering Assist
Steering Assist On
Onmessage. Menus and submenus
237On-board computer and displays Z

Further information about Active Distance
Assist DISTRONIC with Active Steering Assist
(Y page 177).
Activating/deactivating Active Brake
Assist You can use these functions to activate/deac-
tivate Active Brake Assist or, on vehicles with
the Driving Assistance package, to activate or
deactivate Active Brake Assist with cross-traffic
function.
X Press the 0059or0065 button on the steering
wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Brake Assist
Brake Assist.
X Press 0076to confirm.
The current selection appears.
X To activate/deactivate: press the0076but-
ton again.
When Active Brake Assist or Active Brake
Assist with cross-traffic function is deactiva-
ted, the 00D4symbol appears in the multi-
function display in the assistance graphic dis-
play.
Further information on Active Brake Assist
(Y page 67 )and Active Brake Assist with cross-
traffic function (Y page 72).
Activating/deactivating ATTENTION
ASSIST X
Press the 0059or0065 button on the steering
wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Attention Assist Attention Assist .
X Press the 0076button.
The current selection appears.
X Press 0076to confirm.
X Press the 0064or0063 button to set Off
Off ,
Standard
Standard orSensitive
Sensitive .
X Press the 0076button to save the setting.
When ATTENTION ASSIST is deactivated, the
00D7 symbol appears in the multifunction dis-
play in the assistance graphics display.
For further information about ATTENTION
ASSIST, see (Y page 203). Activating/deactivating Blind Spot
Assist X
Press the 0059or0065 button on the steering
wheel to select the DriveAssist
DriveAssist menu.
X Press the 0063or0064 button to select
Blind Spot Assist Blind Spot Assist .
X Confirm by pressing 0076on the steering
wheel.
The current selection appears.
X To activate/deactivate: press the0076but-
ton again.
For further information about Blind Spot Assist, see (Y page 206).
For further information about Active Blind Spot
Assist, see (Y page 209).
Activating/deactivating Lane Keeping
Assist X
Press the 0059or0065 button on the steering
wheel to select the DriveAssist DriveAssistmenu.
X Press the 0063or0064 button to select
Lane Keeping Assist
Lane Keeping Assist .
X Press 0076to confirm.
The current selection appears.
X Press 0076to confirm.
X Press the 0064or0063 button to set Off
Off,
Standard
Standard orAdaptive
Adaptive.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the multifunction display shows the lane markings as bright
lines in the assistance graphic.
X Press the 0076button to save the setting.
For further information about Lane Keeping
Assist, see (Y page 207).
For further information about Active Lane Keep- ing Assist, see (Y page 211). Service menu
Introduction Depending on the equipment installed in the
vehicle, you have the following options in the
Serv. Serv. menu: 238
Menus and submenusOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Radar
Radar
Sensors
Sensors Dirty
Dirty
See Operator's Man‐
See Operator's Man‐
ual ual The radar sensor system is malfunctioning.
Possible causes are:
R dirt on sensors
R heavy rain or snow
R when driving on inter-urban roads without traffic or infrastructure,
e.g. in desert-like areas
At least one driving system or driving safety system is malfunctioning
or is temporarily unavailable:
R PRE-SAFE ®
PLUS
R Active Brake Assist
R Active Lane Keeping Assist
R Active Blind Spot Assist
R Active Distance Assist DISTRONIC
If the radar sensor system in front is dirty, Active Blind Spot Assist will
not perform a course-correcting brake application.
A warning tone also sounds.
Once the cause of the problem is no longer present, the driving and
drive safety systems will be available again. The display message dis-
appears.
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 156).
X Switch off the engine.
X Clean all sensors (Y page 330).
X Restart the engine.
The display message disappears. 0075
SRS SRS
Malfunction Malfunction Ser‐
Ser‐
vice Required
vice Required The restraint system is malfunctioning.
The
0075 warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be triggered 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 immediately.
For further information about the restraint system, see (Y page 44).0075
Front Left Malfunc‐ Front Left Malfunc‐
tion Service tion Service
Required Required
orFront
Front
Left Malfunction
Left Malfunction
Service Required Service Required The restraint system has malfunctioned at the front on the left or right.
The 0075 warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be triggered 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 immediately. 252
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
0050
0050Solutions Traffic
Traffic
Sign
Sign Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Traffic Sign Assist is temporarily inoperative.
Possible causes are:
R the windshield in the camera's field of vision is dirty
R visibility is impaired due to heavy rain, snow or fog
X Clean the windshield.
If the system detects that the camera is fully operational, the display message disappears.
Traffic Sign Assist is operational again. Traffic Traffic
Sign
Sign Assist
Assist
Inoperative
Inoperative Traffic Sign Assist is malfunctioning.
X Visit a qualified specialist workshop. 00D9
Off Off The HOLD function is deactivated. The vehicle is skidding.
A warning tone also sounds.
X Reactivate the HOLD function later (Y page 182).Lane Lane
Keeping
Keeping Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual orActive
Active
Lane
Lane Keeping
Keeping Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated and
temporarily inoperative.
Possible causes are:
R the windshield in the camera's field of vision is dirty
R visibility is impaired due to heavy rain, snow or fog
R there have been no lane markings for an extended period
R the lane markings are worn away, dark or covered up, e.g. by dirt or
snow
When the causes stated above no longer apply, the display message
disappears.
Lane Keeping Assist or Active Lane Keeping 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 156).
X Clean the windshield. Lane Lane
Keeping
Keeping Assist
Assist
Inoperative
Inoperative or
Active
Active Lane
LaneKeeping
Keeping
Assist Inoperative
Assist Inoperative Lane Keeping Assist or Active Lane Keeping Assist is malfunctioning.
X Visit a qualified specialist workshop. 264
Display
messagesOn-board computer and displays