2019 MERCEDES-BENZ GLA Owners Manual

Rif there is a sudden change in temperature,e.g. when driving into a heated garage inwinter
Rif the camera lenses are dirty or covered
Rif the vehicle components are damaged inwhich the cameras are fitted. In this event,have the camera position and settingchecked at a qualified specialist workshop
Do not use the 360° camera in this case. Youcan otherwise injure others or cause damageto objects or the vehicle.
Activation conditions
The 360° camera image can be displayed if:
Ryour vehicle is equipped with a 360° cam-era
RCOMAND is switched on; see the digitalCOMAND operating instructions
Rthe360° Camera360° Camerafunction is activated
Switching on the 360° camera
XPress and hold the

Important safety notes
ATTENTION ASSIST is only an aid to the driver.It might not always recognize fatigue orincreasing inattentiveness in time or fail torecognize them at all. The system is not a sub-stitute for a well-rested and attentive driver.
The functionality of ATTENTION ASSIST isrestricted and warnings may be delayed or notoccur at all:
Rif the length of the journey is less thanapproximately 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 stylewith high cornering speeds or high rates ofacceleration
Rif you are predominantly driving slower than37 mph (60 km/h) or faster than 125 mph(200 km/h)
Rif the time has been set incorrectly
Rin active driving situations, such as whenyou change lanes or change your speed
ATTENTION ASSIST is reset when you continueyour journey and starts assessing your tired-ness again if:
Ryou switch off the engine
Ryou take off your seat belt and open thedriver's door, e.g. for a change of drivers orto take a break
Displaying the attention level
You can have current status information dis-played in the assistance menu (Ypage 196)of the on-board computer.
XSelect the Assistance display for AttentionAssist using the on-board computer(Ypage 197).
The following information is displayed:
RThe length of the journey since the lastbreak.
RTheAttention LevelAttention Leveldetermined byATTENTION ASSIST, displayed in a bar dis-play in five levels from high to low.
RIf ATTENTION ASSIST is unable to calculatethe attention level and cannot output awarning, theSystem SuspendedSystem Suspendedmessageappears. The bar display then changes thedisplay, such as when you are driving at aspeed below 37 mph (60 km/h) or above125 mph (200 km/h).
Activating ATTENTION ASSIST
XActivate ATTENTION ASSIST using the on-board computer (Ypage 198).The system determines the attention level ofthe driver depending on the setting selec-ted:
StandardStandardselected: the sensitivity with whichthe system determines the attention level isset to normal.
SensitiveSensitiveselected: the sensitivity is sethigher. The attention level detected by Atten-tion Assist is adapted accordingly and thedriver is warned earlier.
When ATTENTION ASSIST is deactivated, the

still detects increasing lapses in concentra-tion, you will be warned again after 15 minutesat the earliest. This will only happen if ATTEN-TION ASSIST still detects typical indicators offatigue or increasing lapses in concentration.
Vehicles with the COMAND multimediasystem:if a warning is output in the multi-function display, a service station search isperformed in the multimedia system. You canselect a service station and navigation to thisservice station will then begin. This functioncan be activated or deactivated in the multi-media system; see the Digital Operator's Man-ual.
Lane Tracking package
General notes
The Lane Tracking package consists of BlindSpot Assist (Ypage 185) and Lane KeepingAssist (Ypage 186).
Blind Spot Assist
General notes
Blind Spot Assist monitors the areas on eitherside of the vehicle that are not visible to thedriver with two lateral, rear-facing radar sen-sors. A warning display in the exterior mirrorsdraws your attention to vehicles detected inthe monitored area. If you then switch on thecorresponding turn signal to change lane, youwill also receive an optical and audible warn-ing.
Blind Spot Assist supports you from a speed ofapproximately 20 mph (30 km/h).
Important safety notes
GWARNING
Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large
speed differential and overtake your vehi-
cle
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk
of an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail todetect some vehicles and is no substitute forattentive driving. Always ensure that there issufficient distance to the side for other roadusers and obstacles.
iUSA only:
This device has been approved by the FCCas a "Vehicular Radar System". The radarsensor is intended for use in an automotiveradar system only. Removing, tamperingwith, or altering the device will void any war-ranties, and is not permitted by the FCC. Donot tamper with, alter, or use in any non-approved way.
Any unauthorized modification to this devicecould void the user’s authority to operatethe equipment.
Radar sensors
The radar sensors for Blind Spot Assist areintegrated into the rear bumper. Make surethat the bumpers are free from dirt, ice orslush. The sensors must not be covered, forexample by cycle racks or overhanging loads.Following a severe impact or in the event ofdamage to the bumpers, have the function ofthe radar sensors checked at a qualified spe-cialist workshop. Blind Spot Assist may no lon-ger work properly.
Monitoring range of the sensors
In particular, the detection of obstacles can beimpaired if:
Rthere is dirt on the sensors or anything elsecovering the sensors
Rthere is poor visibility, e.g. due to fog, heavyrain or snow
Ra narrow vehicle traveling in front, e.g. amotorbike or bicycle
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 other road boundaries
Vehicles in the monitoring range are then notindicated.
Blind Spot Assist monitors the area up to 10 ft(3 m) behind your vehicle and directly next toit.
Driving systems185
Driving and parking
Z

If the lanes are narrow, vehicles driving in thelane beyond the lane next to your vehicle maybe indicated, especially if the vehicles are notdriving in the middle of their lane. This may bethe case if the vehicles are driving on the innerside of their lane.
Due to the nature of the system:
Rwarnings may be issued in error when driv-ing close to crash barriers or similar solidlane borders.
Rwarnings may be interrupted when you aredriving alongside particularly long vehicles,such as trucks, for a prolonged time.
Warning display
CWarning display
Blind Spot Assist is not active at speeds belowapproximately 20 mph (30 km/h). Vehicles inthe monitoring range are then not indicated.
When Blind Spot Assist is activated, indicatorlampCin the exterior mirrors lights up yellowat speeds of up to 20 mph (30 km/h). Atspeeds above 20 mph (30 km/h), the indicatorlamp goes out and Blind Spot Assist is opera-tional.
If a vehicle is detected within the blind spotmonitoring range at speeds above 20 mph(30 km/h), warning lampCon the corre-sponding side lights up red. This warning isalways emitted when a vehicle enters the blindspot monitoring range from behind or from theside. When you overtake a vehicle, the warningonly occurs if the difference in speed is lessthan 7 mph (12 km/h).
The yellow indicator lamp goes out if reversegear is engaged. In this event, Blind SpotAssist is no longer active.
The brightness of the indicator/warning lampsis adjusted automatically according to theambient light.
Collision warning
If a vehicle is detected in the monitoring rangeof Blind Spot Assist and you switch on the cor-responding turn signal, a double warning tonesounds. Red warning lampCflashes. If theturn signal remains on, vehicles detected areindicated by the flashing of red warninglampC. 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 198).
XTurn the SmartKey to positionHin the igni-tion lock.Warning lampsCin the exterior mirrorslight up red for approximately 1.5 secondsand then turn yellow.
Lane Keeping Assist
General notes
Lane Keeping Assist monitors the area in frontof your vehicle by means of multifunction cam-eraCwhich is attached behind the top of thewindshield. Lane Keeping Assist detects lanemarkings on the road and can warn you beforeyou leave your lane unintentionally.
This function is available in the range between40 mph and 120 mph (60 km/h and200 km/h).
A warning may be given if a front wheel passesover a lane marking. It will warn you by meansof intermittent vibration in the steering wheelfor up to 1.5 seconds.
Important safety notes
GWARNING
Lane Keeping Assist cannot always clearly
detect lane markings.
186Driving systems
Driving and parking

In such cases, Lane Keeping Assist can:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, espe-
cially if Lane Keeping Assist alerts you.
GWARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There
is a risk of an accident.
You should always steer, brake or accelerate
yourself, in particular if warned by Lane
Keeping Assist.
If you fail to adapt your driving style, LaneKeeping Assist can neither reduce the risk ofan accident nor override the laws of physics.Lane Keeping Assist cannot take into accountthe road, traffic and weather conditions. LaneKeeping Assist is merely an aid. You areresponsible for the distance to the vehicle infront, for vehicle speed, for braking in goodtime and for staying in your lane.
The Lane Keeping Assist does not keep thevehicle in the lane.
The system may be impaired or may not func-tion if:
Rthere is poor visibility, e.g. due to insuffi-cient illumination of the road, or due tosnow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,the sun or reflection from other vehicles(e.g. if the road surface is wet)
Rthe windshield is dirty, fogged up, damagedor covered, for instance by a sticker, in thevicinity of the camera
Rthere are no or several unclear lane mark-ings for one lane, e.g. roadworks
Rthe lane markings are worn away, dark orcovered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is tooshort and thus the lane markings cannot bedetected
Rthe lane markings change quickly, e.g. lanesbranch off, cross one another or merge
Rthe road is narrow and winding
Rthere are highly variable shade conditionson the roadway
Switching on Lane Keeping Assist
XSwitch on Active Lane Keeping Assist usingthe on-board computer; to do so, selectStandardStandardorAdaptiveAdaptive(Ypage 186).If you drive at speeds above 40 mph(60 km/h) and lane markings are detected,the lines in the assistance graphic areshown in green (Ypage 197). Lane KeepingAssist is ready for use.
IfStandardStandardis selected, no warning vibrationoccurs if:
Ryou have switched on the turn signal. In thisevent, the warnings are suppressed for acertain period of time.
Ra driving safety system intervenes, e.g. ABS,
BAS or ESP®.
WhenAdaptiveAdaptiveis selected, no warning vibra-tion occurs if:
Ryou have switched on the turn signal. In thisevent, the warnings are suppressed for acertain 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 anobstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
In order that you are warned only when neces-sary and in good time if you cross the lanemarking, the system detects certain condi-tions and warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on abend
Rthe road has very wide lanes, e.g. a freeway
Rthe system detects solid lane markings
The warning vibration occurs later if:
Rthe road has narrow lanes.
Ryou cut the corner on a bend
Driving systems187
Driving and parking
Z

Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the
vehicle when driving, you may be distracted
from the traffic situation. You could also
lose control of the vehicle. There is a risk of
an accident.
Only operate this equipment when the traffic
situation permits. If you are not sure that
this is possible, park the vehicle paying
attention to traffic conditions and operate
the equipment when the vehicle is station-
ary.
You must observe the legal requirements forthe country in which you are currently drivingwhen operating the on-board computer.
GWARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety.
The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
The on-board computer only shows messagesor warnings from certain systems in the multi-function display. You should therefore makesure your vehicle is operating safely at alltimes.
If the operating safety of your vehicle isimpaired, pull over as soon as it is safe to doso. Contact a qualified specialist workshop.
For an overview, see the instrument panelillustration (Ypage 32).
Displays and operation
Instrument cluster lighting
The light sensor in the instrument cluster auto-matically controls the brightness of the multi-function display. In daylight, the displays in theinstrument cluster are not illuminated.
The lighting in the instrument cluster, in thedisplays and the controls in the vehicle interiorcan be adjusted using the brightness controlknob.
The brightness control knob is located on thebottom left of the instrument cluster(Ypage 32).
XTurn the brightness control knob clockwiseor counter-clockwise.If the light switch is set to theX,`orXposition, the brightness is dependentupon the brightness of the ambient light.
Speedometer with segments
The speedometer is only divided into seg-ments in vehicles with Active Distance AssistDISTRONIC.
The segments in the speedometer indicatewhich speed range is available.
RActive Distance Assist DISTRONIC activated(Ypage 158):
One or two segments in the set speed rangelight up.
RActive Distance Assist DISTRONIC detects avehicle in front moving more slowly than thestored speed:
The segments between the speed of thevehicle in front and the stored speed lightup.
Tachometer
!Do not drive in the overrevving range, asthis could damage the engine.
The red band in the tachometer indicates theengine's overrevving range.
The engine is limited within a range to protectthe engine when the red band is reached.
Outside temperature display
You should pay special attention to road con-ditions when temperatures are around freezingpoint.
Bear in mind that the outside temperature dis-play indicates the temperature measured anddoes not record the road temperature.
188Displays and operation
On-board computer and displays

The outside temperature display is in the mul-tifunction display (Ypage 191).
There is a short delay before a change in out-side temperature appears in the multifunctiondisplay.
Coolant temperature gauge
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!A display message is shown if the coolanttemperature is too high.
If the coolant temperature is over 248 ‡(120 †), do not continue driving. Theengine will otherwise be damaged.
The coolant temperature gage is in the instru-ment cluster on the right-hand side(Ypage 32).
TheHmarking in the coolant temperaturegauge corresponds to a coolant temperatureof approximately 248 ‡ (120 †).
Under normal operating conditions and at thecorrect coolant level, the coolant temperaturegauge may rise to theHmarking.
Operating the on-board computer
Overview
CMultifunction display
DRight control panel

Left control panel
Y
e
RCalls up the menu and menu bar
c
d
Press briefly:
RScrolls in lists
RSelects a submenu or function
RIn theAudioAudiomenu: selects the previous or next station, when the presetlist or station list is active, or an audio track or video scene
RIn theTelTel(telephone) menu: switches to the phone book and selects aname or telephone number
c
d
Press and hold:
RIn theAudioAudiomenu: selects a preset list or a station list in the desired fre-quency range, or an audio track or video scene using rapid scrolling
RIn theTelTel(Telephone) menu: starts rapid scrolling if the phone book isopen
vRConfirms the selection or display message
RIn theTelTel(Telephone) menu: switches to the telephone book and startsdialing the selected number
8Press briefly:
RBack
RVehicles with Audio 20: switches off voice-operated control for navigation(see the manufacturer's operating instructions)
RVehicles with COMAND: switches off the Voice Control System (see theseparate operating instructions)
RHides display messages or calls up the lastTripTripmenu function used
RExits the phone book/redial memory
8Press and hold:
RCalls up the standard display in theTripTripmenu
Right control panel