2022 MERCEDES-BENZ GLA SUV Owners Manual

Operating Active Distance Assist DISTRONIC
R equirements:
= The electric parking brake is released.
= ESP n
is activated and is not intervening.
= The transmission is in position h.
= The driver's door is closed.
= Check of the radar sensor system has been
successfully completed.
= Parking Assist PARKTRONIC is not being used
to park the vehicle or to exit from a parking
space.
= DSR is deactivated. 
To operate Active Distance Assist
DIS
TRONIC: press the rocker switches on the
steering wheel control unit up or down to the
desired position.
Switching between Active Distance Assist
DIS
TRONIC and the limiter 
Press button *. Activating the variable limiter or Active Distance
Assis

t DISTRONIC 
To activate without a stored speed: pr
ess
rocker switch 1 up M or down N, or
select / with the les rocker switch.
or 
To activate with a stored speed: select /
wit
h the les rocker switch. 
Active Distance Assist DISTRONIC: r
emove
your foot from the accelerator pedal.
The current vehicle speed is stored and main-
tained (Active Distance Assist DISTRONIC) or
limited (variable limiter) by the vehicle.
Adopting a detected speed limit 
Activate Active Distance Assist DISTRONIC. 
If a tr
aPc sign has been detected and is dis-
played in the instrument cluster: select /
with the les rocker switch.
The maximum permissible speed on the traPc
sign is adopted as the stored speed. The vehi-
cle adapts its speed to that of the vehicle in
front, but only up to the stored speed. 246
Driving and parking

Pulling away with Active Distance Assist
DIS
TRONIC 
Activate Active Distance Assist DISTRONIC
and r
emove your foot from the brake pedal. 
Select / wit
h the les rocker switch.
or 
Depress the accelerator pedal br
ieOy and
Nrmly.
The functions of Active Distance Assist
DISTRONIC continue to be carried out.
Deactivating Active Distance Assist DISTRONIC &
WARNING Risk of an accident due t
o
Active Distance Assist DISTRONIC being
active when you leave the driver's seat
If you leave the driver's seat while the vehicle
is being br
aked by Active Distance Assist
DISTRONIC only, the vehicle can roll away. 
Always deactivate Active Distance Assist
DIS

TRONIC and secure the vehicle to
prevent it from rolling away before you
leave the driver's seat. 
Select O wit
h the les rocker switch.
% If you brake, deactivate ESP n
or if ESP n
int
er-
venes, Active Distance Assist DISTRONIC is
deactivated.
Increasing/decreasing the stored speed 
1 km/h: press rocker switch 1 up M or
do
wn N to the pressure point, or press and
hold (increments of1 km/h).
or 
10 km/h: press rocker switch 1 up M or
do
wn N beyond the pressure point, or
press and hold (increments of10 km/h).
or 
Accelerate the vehicle to the desired speed
and pr

ess rocker switch 1 up M.
Changing the speciNed dis
tance to the vehicle in
front 
To reduce the speciNed dis
tance: press the
right rocker switch up ( Ñ). 
To increase the speciNed dis
tance: press the
right rocker switch down ( Ò).Function of Active Speed Limit Assist
If a c

hange in the speed limit of 20 km/h or more
is detected and automatic adoption of speed lim-
its is activated, the new speed limit is automati-
cally adopted as the stored speed (  page 261).
The driven speed is adjusted when the vehicle is
level with the traPc sign at the latest. In the case
of signs indicating entry into an urban area, the
speed is adapted according to the speed permit-
ted within the urban area. The speed limit display
in the Instrument Display is always updated when
the vehicle is level with the traPc sign.
If there is no speed restriction on an unlimited
stretch of road (e.g. on a motorway), the recom-
mended speed is automatically adopted as the
stored speed. The system uses the speed stored
on an unlimited stretch of road as the recommen-
ded speed. If you do not alter the stored speed on
an unlimited stretch of road, the recommended
speed is 130 km/h.
If Active Distance Assist DISTRONIC has been put
into passive mode by pressing the accelerator
pedal, only speed limits which are higher than the
set speed are adopted. Driving and parking
247

Observe the notes on driving systems and your
r esponsibility; you may otherwise fail to recognise
dangers ( page 230).
System limits
The system limits of TraPc Sign Assist apply to
the detection of traPc signs ( page 260).
Speed limits below 20 km/h are not automatically
adopted by the system as the stored speed. Tem-
porary speed restrictions (e.g. for a certain time
or due to weather conditions) cannot be properly
detected by the system. The maximum permissi-
ble speed applying to a vehicle with a trailer is not
detected by the system.
Adjust the speed in these situations. &
WARNING Risk of accident due t
o Active
Speed Limit Assist adapting the vehicle's
speed
The speed adopted by Active Speed Limit
Assis
t may be too high or incorrect in some
individual cases, such as:
= at speed limits below 20 km/h =
in w
et conditions or in fog
= when towing a trailer 
Ensure that the driven speed complies
wit

h traPc regulations. 
Adjust the driving speed to suit current
tr
aPc and weather conditions. Function of route-based speed adaptation
When A

ctive Distance Assist DISTRONIC is activa-
ted, the vehicle speed will be adapted accordingly
to the route events ahead. Depending on the drive
program selected, the vehicle negotiates a route
event ahead in an economical, comfortable or
dynamic manner. When the route event has been
passed, the vehicle accelerates again to the
stored speed. The set distance to the vehicle in
front, vehicles detected ahead and speed restric-
tions ahead are taken into account.
You can activate and deactivate route-based
speed adaptation in the multimedia system
(  page 249).
The following route events are taken into account: = Bends =
T
-junctions, roundabouts and toll stations
= Turns and exits
= TraPc jams ahead (only with Live TraPc Infor-
mation )
% When the toll station is reached, Active Dis-
t
ance Assist DISTRONIC adopts the speed as
the stored speed.
Also, the speed is reduced if the turn signal indi-
cat
or to change lanes is switched on and one of
the following situations is detected:
= Turning at junctions
= 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 junctions, roundabouts and
traPc lights, as route-based speed adaptation
does not brake the vehicle to a standstill.
When route guidance is active, the Nrst speed
adjustment is carried out automatically. If the turn
signal indicator is switched on, the selected route 248
Driving and parking

is conNrmed
and further speed adjustment is acti-
vated.
Speed adaptation is cancelled 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's course not clearly visible
= Road narrowing
= varying maximum permissible speeds in indi-
vidual lanes, forexample at toll stations
= wet road surfaces, snow or ice
= when towing a trailer In these situations the driver must intervene
accor
dingly. &
WARNING Risk of accident in spit
e of
route-based speed adaptation
Route-based speed adaptation can malfunc-
tion or be t
emporarily 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 tr
aPc situation. Setting route-based speed adaptation
R

equirements:
= Active Distance Assist DISTRONIC is activa-
ted. =
EC
O Assist is active.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Route-based speed adapt. 
Activate or deactivate the function.
When t
he function is active, the vehicle speed
is adjusted depending on the route events
ahead.
% Further information on the route-based speed
adap
tation (  page 248). DSR (Downhill Speed Regulation)
Function of DSR (Downhill Speed Regulation)
DSR is an aid t

o assist you when driving downhill.
It keeps the speed of travel at the selected target
speed. The steeper the downhill gradient, the
greater the D S R 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 h, k or i, DSR controls the driving
speed. The target speed can be set to a value
between 2 km/h and 18 km/h. By braking or Driving and parking
249

accelerating, you can drive at a higher or lower
speed t
han the target speed at any time.
If you drive faster than 45 km/h or change the
driving programme (except in )/), DSR
switches oM automatically. The î off message
then appears in the multifunction display. The sta-
tus indicator in the multifunction display disap-
pears. You also hear a warning tone.
Information on DSR &
WARNING Risk of skidding and accident
when DSR is activ
ated 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
t
he diMerence between the driving speed
and target speed before activating DSR. Observe the notes on driving systems and your
r
esponsibility; you may otherwise fail to recognise
dangers ( page 230).
You are always responsible for keeping control of
the vehicle and for assessing whether the downhill gradient can be negotiated. Depending on road
sur

face and tyres, 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.
Activating or deactivating DSR (Downhill Speed
Regulation)
Requirements:
= You are driving at a speed of 40 km/h or
lower.
If the current vehicle speed is too high, the
Max. speed 40 km/h message appears in the
multifunction display.
= Active Distance Assist DISTRONIC is deactiva-
ted.
Multimedia system: 4 © 5
Settings 5
Quick access 
Select î.
A s
tatus display appears in the multifunction
display when the function is activated.
% When you switch to the ) dr
ive program,
the function is automatically activated. Changing the target speed

To increase/reduce the target speed: pr
ess
rocker switch 1 up M or down N to
the point of resistance.
The selected target speed increases or
decreases by 1 km/h and appears along with
the î symbol in the multifunction display. 250
Driving and parking

Active Steering Assist
Function of Active Steering Assist
A
ctive Steering Assist is only available up to a
speed of 210 km/h. The system helps you to stay
in the centre of the lane by means of moderate
steering interventions. Depending on the speed
driven, Active Steering Assist uses the vehicles
ahead and lane markings as a reference.
% Depending on the country, in the lower speed
r
ange 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 centre of
the lane, forexample, to form a rescue lane.
If the detection of lane markings and vehicles
ahead is im
paired, Active Steering Assist switches
to passive mode. The system provides no support
in this case.
Status display of Active Steering Assist in the
Instrument Display = Ø (grey): activated and passive
= Ø (green): activated and active
= Ø (red): system limits detected =
Ø (whit
e, red hands): "hands on the steer-
ing wheel" prompt
% During the transition from active to passive
s

tatus, the Ø symbol is shown as enlarged
and Oashing. Once the system is passive, the
Ø symbol is shown as grey in the Instru-
ment Display.
% Depending on the selected vehicle settings,
A

ctive Steering Assist may be unavailable.
Steering and touch detection
The dr
iver 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. If the system detects that the driver has not
s
teered the vehicle for a considerable period of
time or has removed their hands from the steering
wheel, 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 253).
The warning is not issued or is stopped when the
driver gives conNrmation to the system:
= The driver steers the vehicle. Driving and parking
251

=
Depending on t he 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 issued
and a warning tone sounds.
Observe the notes on driving systems and your
responsibility; you may otherwise fail to recognise
dangers ( page 230).
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 light condi-
tions or strong shadows on the carriageway.
= There is glare, e.g. from oncoming traPc,
direct sunlight or reOections.
= *nsuPcient road illumination. =
The windscr een is dirty, misted 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
junctions.
= 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 junctions.
= At roundabouts or toll stations.
= When towing a trailer.
= When the tyre pressure is too low. &
WARNING Risk of accident if A ctive Steer-
ing Assist unexpectedly stops functioning
If the system limits of Active Steering Assist
ar
e 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 obser
ve the traPc carefully. 
Always steer the vehicle paying attention
t

o traPc conditions. &
WARNING Risk of accident if A
ctive Steer-
ing Assist unexpectedly intervenes
The detection of lane markings and objects
ma
y malfunction and cause unexpected steer-
ing interventions. 
Steer according to tr
aPc conditions. Activating/deactivating Active Steering Assist
R

equirements:
= ESP n
is activated, but is not intervening. 252
Driving and parking

=
A ctive Distance Assist DISTRONIC is activa-
ted.
Multimedia system: 4 © 5
Settings 5
Quick access 
Select O Act. Steer. Asst .Function of Active Emergency Stop Assist
If the system detects that the driver has not
s

teered the vehicle for a considerable period of
time or has removed their hands from the steering
wheel, display 1 appears in the Instrument Dis-
play. 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 mes-
sag

e.
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 DISTRONIC
reduces the speed. The vehicle is decelerated in
stages to a standstill.
Depending on the country, at speeds below
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 centre.
The driver can cancel the deceleration at any time
by performing one of the following actions: = Steering =
Br aking or accelerating
= Deactivating Active Distance Assist
DISTRONIC Active Brake Assist
Function of Active Brake Assist
A

ctive Brake Assist consists of the following func-
tions:
= Distance warning function
= Autonomous braking function
= Situation-dependent braking assistance
= Vehicles with Driving Assistance Package: Eva-
sive Steering Assist and cornering function
Active Brake Assist can help you to minimise 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 / dis-
tance warning lamp lights up in the instrument
cluster. Driving and parking
253