MERCEDES-BENZ GLA 2023 Owners Manual

=TraPc jams ahead (only with Live TraPc Infor-
mation )\bWhen the toll station is reached, Active Dis- tance Assist DISTRONIC adopts the speed asthe stored speed.
Also, the speed is reduced if the turn signal indi-
cator to change lanes is switched on and one of
the following situations is detected:
= Turning at intersections
= Driving on slowing-down lanes
= Driving on lanes adjacent to slowing-down
lanes
The driver is responsible for choosing the right speed and observing other road users. This
applies in particular to intersections, traPc circles
and traPc lights because route-based speed
adaptation does not brake the vehicle to a stand-
still.
When route guidance is active, the Nrst speed
adjustment is carried out automatically. If the turn signal indicator is switched on, the selected route
is conNrmed and further speed adjustment is acti-
vated.
Speed adaptation is canceled in the following
cases:
= If the turn signal indicator is switched oM
before the route event.
= If the driver depresses the accelerator or
brake pedal during the process.
System limits
Route-based speed adaptation does not take right
of way regulations into account. The driver is
responsible for complying with road traPc regula-
tions and driving at a suitable speed.
The speed adaptation made by the system may not always be suitable, particularly in the following
situations:
= the road\bs course not clearly visible
= Road narrowing
= varying maximum permissible speeds in indi-
vidual lanes, forexample at toll stations
= wet road surfaces, snow or ice
In these situations the driver must intervene accordingly.&WARNING Risk of accident in spite of
route-based speed adaptation
Route-based speed adaptation can malfunc-
tion or be temporarily unavailable in the fol-
lowing situations:
= If the driver does not follow the calculated
route
= If map data is not up-to-date or available
= In the event of roadworks
= In bad weather or road conditions
= If the accelerator pedal is depressed
= In the event of electronically displayed
speed limitations
Adapt the speed to the traPc situation.

qSetting route-based speed adaptation
Requirements
= Active Distance Assist DISTRONIC is activa-
ted.
= ECO Assist is active.
Driving and parking189

Multimedia system:4 © 5
Settings 5
Assistance
5 Route-based SpeedActivate or deactivate the function.
When the function is active, the vehicle speed is adjusted depending on the route events
ahead.\bFurther information on route-based speed
adaptation (  page 188).
DSR (Downhill Speed Regulation)

qFunction of DSR
DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the selected target
speed. The steeper the downhill gradient, the greater the DSR braking eMect on the vehicle. On
Oat stretches of road and uphill gradients, the
DSR brakes the vehicle minimally or not at all.
When DSR is activated and the transmission is in
position [, ^ or \\, DSR controls the driving
speed. The target speed can be set to a value
between 1 mph (2 km/h) and 11 mph (18 km/h).
By braking or accelerating, you can drive at a
higher or lower speed than the target speed at
any time.
If you drive faster than 28 mph (45 km/h) or change the drive program (except in )), DSR
switches oM automatically. The î Off mes-
sage will then appear on the instrument display. The status indicator on the instrument display goes out. You also hear a warning tone.

q Information on DSR&WARNING Risk of skidding and accident
when DSR is activated on slippery road
surfaces
If the driven speed and the target speed diMer,
the wheels may lose traction.
Take into account the road surface and
the diMerence between the driving speed
and target speed before activating DSR.
Observe the notes on driving systems and your responsibility; you may otherwise fail to recognizedangers (  page 172).
You are always responsible for keeping control of the vehicle and for assessing whether the downhill
gradient can be negotiated. Depending on road
surface and tires, DSR may not always be able to keep to the target speed. Select a target speed
suitable for the environmental conditions and also
apply the brakes yourself if required.

q Activating or deactivating DSR (Downhill Speed
Regulation)
Requirements:
= You are driving at a speed of 25 mph
(40 km/h) or lower.
If the current vehicle speed is too high, the Max. Speed 24 mph message appears in the
multifunction display.
= Active Distance Assist DISTRONIC is deactiva-
ted.
Multimedia system: 4 © 5
Settings 5
Quick AccessSelect î.
A status display appears in the multifunction display when the function is activated.\bWhen you switch to the ) drive program,
the function is automatically activated.190Driving and parking

qChanging the target speedTo increase/reduce the target speed: press
rocker switch 1 up M or down N to
the point of resistance.
The selected target speed increases or
decreases by 1 mph (1 km/h) and appears along with the î symbol in the multifunc-
tion display.Active Steering Assist

q Function of Active Steering Assist
Active Steering Assist is only available up to a
speed of 130 mph (210 km/h). The system helps you to stay in the center of the lane by means ofmoderate steering interventions. Depending on
the speed driven, Active Steering Assist uses the vehicles ahead and lane markings as a reference.
\bDepending on the country, in the lower speedrange Active Steering Assist can use the sur-
rounding traPc as a reference. If necessary,
Active Steering Assist can then also provide assistance when driving outside the center of
the lane, forexample, to form a rescue lane.
If the detection of lane markings and vehicles
ahead is impaired, Active Steering Assist switches to passive mode. The system provides no support
in this case.
Status display of the active steering assistant = Ø (gray): activated and passive
= Ø (green): activated and active
= Ø (red): system limits detected
=
Ø (white, red hands): "hands on the steer-
ing wheel" prompt\bDuring the transition from active to passive
status, the Ø symbol is shown as enlarged
and Oashing. When the passive state is
reached, the symbol Ø is displayed in
gray.\bDepending on the selected vehicle settings,
Active Steering Assist may be unavailable.
Steering and touch detection
The driver is required to keep their hands on the steering wheel at all times and be able to inter-
vene at any time to correct the course of the vehi-
cle and keep it in lane. The driver must expect a change from active to passive mode or vice versa at any time.
Driving and parking191

If the system detects that the driver has not
steered the vehicle for a considerable period of time or has removed their hands from the steeringwheel, display 1 appears. If the driver still does
not steer the vehicle, a warning tone sounds in
addition to the visual warning message.
If the driver does not react to the warning for a
considerable period, the system can initiate an
emergency stop (  page 193).
The warning is not issued or is stopped when the driver gives conNrmation to the system:
= The driver steers the vehicle.
=Depending on the country: the driver presses
a steering wheel button or operates Touch Control
If Active Steering Assist detects that a system limit has been reached, a visual warning is issuedand a warning tone sounds.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognize dangers (  page 172).
System limits
Active Steering Assist has a limited steering tor-
que for lateral guidance. In some cases, the steer-
ing intervention is not suPcient to keep the vehi-
cle in the lane or to drive through exits.
The system may be impaired or may not function
in the following instances:
= There is poor visibility, e.g. due to snow, rain,
fog, heavy spray, greatly varying ambient light
or strong shadows on the road.
= There is glare, e.g. from oncoming traPc,
direct sunlight or reOections.
= *nsuPcient road illumination.=
The windshield is dirty, fogged up, damaged or
covered in the vicinity of the camera, e.g. by a
sticker.
= No, or several, unclear lane markings are pres-
ent for one lane, or the markings change
quickly, forexample, in a construction area or intersections.
= The lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow.
= If the distance to the vehicle in front is too
short and thus the lane markings cannot be detected.
= The road is narrow and winding.
= There are obstacles on the lane or projecting
out into the lane, suchas object markers.
The system does not provide assistance in the fol-
lowing conditions:
= On tight bends and when turning.
= When crossing intersections.
= At traPc circles or toll stations.
= When the tire pressure is too low.192Driving and parking

&WARNING Risk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If the system limits of Active Steering Assist
are reached there is no guarantee that the system will remain active or will keep the vehi-
cle in lane.
Always keep your hands on the steering
wheel and observe the traPc carefully.Always steer the vehicle paying attention
to traPc conditions.&WARNING Risk of accident if Active Steer-
ing Assist unexpectedly intervenes
The detection of lane markings and objects
may malfunction and cause unexpected steer-
ing interventions.
Steer according to traPc conditions.

qActivating/deactivating Active Steering Assist
Requirements
= ESP n
is activated, but is not intervening.
= Active Distance Assist DISTRONIC is activa-
ted.
Multimedia system: 4 © 5
Settings 5
Quick AccessSelect O Steering Assist .
Function of Active Emergency Stop Assist
If the system detects that the driver has not
steered the vehicle for a considerable period of time or has removed their hands from the steeringwheel, display 1 appears. If the driver still does
not steer the vehicle, or gives no conNrmation to
the system, a warning tone sounds in addition to
the visual warning message.
If the driver still does not respond to the warning,
the Beginning Emergency Stop message appears
in the Instrument Display. If the driver still does not respond, Active Distance Assist DISTRONICreduces the speed. The vehicle is decelerated in
stages to a standstill.
Depending on the country, at speeds below
40 mph (60 km/h) the hazard warning lights
switch on automatically.
When the vehicle is stationary, the following actions are carried out:
= The vehicle is secured with the electric park-
ing brake.
= Active Distance Assist DISTRONIC is ended.
= The vehicle is unlocked.
= If possible, an emergency call is placed to the
Mercedes-Benz emergency call center.
The driver can cancel the deceleration at any time
by performing one of the following actions:
= SteeringDriving and parking193

=Braking or accelerating
= Deactivating Active Distance Assist
DISTRONIC
Active Lane Change Assist

q Function of Active Lane Change Assist
Active Lane Change Assist supports the driver when changing lanes by applying steering torque
if the driver activates a turn signal indicator.
Observe the notes on driving systems and yourresponsibility; you may otherwise fail to recognizedangers (  page 172).
Assistance when changing lanes is provided if all the following conditions are met:
= You are driving on a freeway or road with mul-
tiple lanes in the direction of travel.
= The neighboring lane is separated by a broken
lane marking.
= No vehicle is detected in the adjacent lane.
= The vehicle speed is between 50 mph
(80 km/h) and 110 mph (180 km/h).
= Active Lane Change Assist is switched on in
the multimedia system.
= Active Steering Assist is activated and active.
If no vehicle is detected in the adjacent lane and a
lane change is permitted, the lane change begins aser the driver has activated the turn signal indi-
cator. This is shown to the driver with a green
arrow next to the

Lane Change Assist cannot then assist you byapplying steering torque.Always monitor the lane change and
keep your hands on the steering wheel. Observe the traPc conditions and steer
and/or brake if necessary.
System limits
The system limits of Active Steering Assist apply to Active Lane Change Assist (  page 191).
The system may also be impaired or may not func-
tion in the following situations:
= The sensors in the rear bumper are dirty, dam-
aged or covered by a sticker or ice and snow, for example.
= The exterior lighting shows a defect.
\bThe Active Lane Change Assist sensors adjust
automatically while a certain distance is being
driven aser the vehicle has been delivered.
Active Lane Change Assist is unavailable dur-
ing this teach-in process; no arrow appears next to the Active Steering Assist symbolØ when the turn signal indicator is activa-
ted.

q Selecting Active Lane Change Assist
Multimedia system: 4 © 5
Settings 5
Assistance
5 Active Lane Change Assist
Select the function.
Active Brake Assist

qFunction of Active Brake Assist
Active Brake Assist consists of the following func-
tions:
= Collision warning
= Autonomous braking function
= Situation-dependent brake force boosting
= Vehicles with Driving Assistance Package: Eva-
sive Steering Assist and cornering function
Active Brake Assist can help you to minimize the
risk of a collision with vehicles, cyclists or pedes- trians or to reduce the eMects of such a collision.
If Active Brake Assist has detected a risk of colli-
sion, a warning tone sounds and the / warn-
ing lamp lights up.
Vehicles with PRE-SAFE n
: depending on the coun-
try, an additional haptic warning occurs in the form of slight, repeated tensioning of the seat
belt.
If you do not react to the warning, autonomous
braking can be initiated in critical situations.
In especially critical situations, Active Brake Assist
can initiate autonomous braking directly. In this
case, the warning lamp and warning tone occur
simultaneously with the braking application.
If you apply the brake yourself in a critical situa-
tion or apply the brake during autonomous brak-
ing, situation-dependent brake force boosting.
The brake pressure increases up to maximum full-
stop braking if necessary.
Observe the notes on driving systems and your responsibility; you may otherwise fail to recognizedangers (  page 172).Driving and parking195

If autonomous braking or situation-dependent
brake force boosting has occurred, display 1
appears in the instrument display and then auto-
matically goes out aser a short time.
If the autonomous braking function or the situa- tion-dependent brake force boosting is triggered,
additional preventive measures for occupant pro-
tection (PRE-SAFE n
) may also be initiated.
&WARNING Risk of an accident caused by
limited detection performance of Active
Brake Assist
Active Brake Assist cannot always clearly iden-
tify objects and complex traPc situations.
In such cases, Active Brake Assist might:
= Give a warning or brake without reason
= Not give a warning or not brake
Active Brake Assist is only an aid. The driver is
responsible for maintaining a suPciently safe
distance to the vehicle in front, vehicle speed and for braking in good time.Always pay careful attention to the traPc
situation; do not rely on Active Brake
Assist alone.Be prepared to brake or swerve if neces-
sary.
If Active Brake Assist is deactivated or the func- tions are restricted, e.g. due to activation ofanother driving system, the ê display message
appears on the instrument display.
If the system is unavailable due to dirty or dam-
aged sensors or due to a malfunction, or if the
functions are restricted, the

pedestrian, you will hear an intermittent warn-
ing tone and the / distance warning lamp
lights up on the instrument display.
Vehicles with PRE-SAFE n
: depending on the
country, an additional haptic warning occurs in the form of slight, repeated tensioning of
the seat belt.
= at speeds up to approximately 155 mph
(250 km/h) when approaching vehicles ahead
= at speeds up to approximately 50 mph
(80 km/h) when approaching stationary vehi-
cles, moving pedestrians, and cyclists ahead
= at speeds up to approximately 37 mph
(60 km/h) when approaching crossing cyclists
Collision warning (vehicles with Driving Assistance
Package)
The collision warning can aid you in the following situations with an intermittent warning tone and awarning lamp:
= at speeds up to approximately 155 mph
(250 km/h) when approaching vehicles ahead= at speeds up to approximately 62 mph
(100 km/h) when approaching stationary
vehicles
= at speeds up to approximately 50 mph
(80 km/h) when approaching moving pedes- trians and cyclists ahead
= at speeds up to approximately 43 mph
(70 km/h) when approaching stationary
pedestrians, crossing vehicles and stationary
and crossing cyclists
Autonomous braking function (vehicles without
Driving Assistance Package)
If the vehicle is traveling at speeds above approx-
imately 4 mph (7 km/h), the autonomous braking
function may intervene in the following situations:
= at speeds up to approximately 124 mph
(200 km/h) when approaching vehicles ahead
= at speeds up to approximately 50 mph
(80 km/h) when approaching cyclists ahead
= at speeds up to approximately 37 mph
(60 km/h) when approaching moving pedes-
trians, crossing cyclists, and stationary vehi- clesAutonomous braking function (vehicles with Driv-
ing Assistance Package)
If the vehicle is traveling at speeds above approx-
imately 4 mph (7 km/h), the autonomous braking
function may intervene in the following situations:
= at speeds up to approximately 155 mph
(250 km/h) when approaching vehicles ahead
= at speeds up to approximately 62 mph
(100 km/h) when approaching stationary
vehicles
= at speeds up to approximately 50 mph
(80 km/h) when approaching cyclists ahead
= at speeds up to approximately 43 mph
(70 km/h) when approaching stationary and
moving pedestrians, crossing vehicles and sta-
tionary and crossing cyclists
Situation-dependent brake force boosting (vehi- cles without Driving Assistance Package)
The situation-dependent brake force boosting can
intervene from a speed of approximately 4 mph
(7 km/h) in the following situations:
= at speeds up to approximately 155 mph
(250 km/h) when approaching vehicles aheadDriving and parking197

=at speeds up to approximately 50 mph
(80 km/h) when approaching stationary vehi-
cles and cyclists ahead
= at speeds up to approximately 37 mph
(60 km/h) when approaching moving pedes-
trians and crossing cyclists
Situation-dependent brake force boosting (vehi-
cles with Driving Assistance Package)
The situation-dependent brake force boosting can
intervene from a speed of approximately 4 mph
(7 km/h) in the following situations:
= at speeds up to approximately 155 mph
(250 km/h) when approaching vehicles ahead
= at speeds up to approximately 62 mph
(100 km/h) when approaching stationary
vehicles
= at speeds up to approximately 50 mph
(80 km/h) when approaching cyclists ahead
= at speeds up to approximately 37 mph
(60 km/h) when approaching stationary and
moving pedestrians, crossing vehicles, and
stationary and crossing cyclistsCanceling a brake application of Active Brake
Assist
You can cancel a brake application of Active Brake Assist at any time by:
= sharply depressing the accelerator pedal or
with kickdown
= releasing the brake pedal
Active Brake Assist may cancel the brake applica-
tion when one of the following conditions is fulNl-
led:
= you maneuver to avoid the obstacle
= there is no longer a risk of collision
= an obstacle is no longer detected in front of
your vehicle
Evasive Steering Assist (only vehicles with Driving
Assistance Package)
Evasive Steering Assist has the following charac-
teristics:
= The ability to detect stationary or moving
pedestrians.
= Assistance through power-assisted steering if
it detects a swerving maneuver.= Activation by an abrupt steering movement
during a swerving maneuver.
= Assistance during swerving and straightening
of the vehicle.
= Reaction from a speed of approximately
12 mph (20 km/h) up to a speed of approx-
imately 43 mph (70 km/h).
You can prevent the assistance at any time by
actively steering.
Cornering function (only vehicles with Driving Assistance Package)
If the system detects a risk of a collision with an oncoming vehicle when turning across an oncom-
ing lane, autonomous braking can be initiated at
speeds below 9 mph (15 km/h) before you have
les the lane in which you are driving.&WARNING Risk of accident despite Eva-
sive Steering Assist
Evasive Steering Assist cannot always recog-
nize objects or complex traPc situations
clearly.
198Driving and parking