2017 MERCEDES-BENZ GLA-Class warning

XDepress the brake pedal firmly with your
left foot and keep the brake pedal
depressed.
XShift the transmission to positionD.
XUse the DYNAMIC SELECT button to select
the Sdrive program (
Ypage 157).
XQuickly depress the accelerator pedal fully.
XTake your foot off the brake, but keep the
accelerator pedal depressed.
The vehicle pulls away at maximum accel-
eration.
iActivate ESP®as soon as the acceleration
process has ended. ESP®will otherwise not
be able to stabilize the vehicle if the vehicle
starts to skid or a wheel starts to spin.
Canceling start-off assist
XRemove your foot from the accelerator
pedal.
XReactivate ESP.
RACE START (AMG vehicles)
Important safety notes
iRACE START must not be used on normal
roads. RACE START must only be activated and used on dedicated road circuits, out-
side of public road use.
iRACE START is only available in
Mercedes‑AMG vehicles.
GWARNING
If you use RACE START, individual tires may
start to spin and the vehicle could skid.
Depending on the selected ESP
®mode, there
is an increased risk of skidding and having an accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
RACE START enables optimal acceleration
from a standing start. For this, a suitably high-
grip road surface is required, along with the
tires and vehicle being in proper operating
condition.
iObserve the safety notes on driving safety
systems (
Ypage 65).
Be sure to read the safety notes and infor-
mation on ESP
®(Ypage 69).
Conditions for activation
You can activate RACE START if:
Rthe doors, hood and the trunk lid are
closed.
Rthe engine is running and the transmission,
all-wheel drive clutch and the engine are at operating temperature.
Rthe steering wheel is in the straight-ahead
position.
Rthe vehicle is stationary and the brake
pedal is depressed (left foot).
Rthe transmission is in position D.
Rdrive program S,S+ orRACE is selected
(
Ypage 158).
Activating RACE START
XDepress the brake pedal with your left foot
and keep it depressed.
XPull and hold both steering wheel paddle
shifters.
XThe RACE START Confirm: Paddle UP
Cancel: Paddle DOWNmessage appears
in the multifunction display.
XRelease both steering wheel paddle shift-
ers.
iIf the activation conditions are no longer
fulfilled, RACE START is canceled. The
RACE START Not Possible See Opera‐
tor's Manualmessage appears in the
multifunction display.
XTo cancel: pull the left steering wheel pad-
dle shifter (
Ypage 166).
or
XTo confirm: pull the right steering wheel
paddle shifter (
Ypage 166).
The RACE START Available Depress
gas pedalmessage appears in the multi-
function display.
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XPress button:again so that indicator
lamp ;goes out.
You have selected Comfort mode.
The AMG Suspension System COMFORT
message appears in the multifunction dis-
play.
4MATIC
!
Never tow the vehicle with one axle
raised. This may damage the differential.
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 vehicle with all wheels in full
contact with the ground.
4MATIC, together with ESP
®, 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 con- ditions. 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.
If a drive wheel spins due to insufficient grip:
ROnly depress the accelerator pedal as far as
necessary when pulling away.
RAccelerate less when driving.
iIn 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.
DSR
General notes
iDSR (Downhill Speed Regulation) is only
available for vehicles with the Off-Road
Engineering package. 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 braking effect on the vehicle. When driv-
ing 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
activated and the transmission is in position
D
,R or N. 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
GWARNING
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 over-
ride the laws of physics. DSR cannot take
account of road, weather and traffic condi-
tions. DSR 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.
You are always responsible for keeping con-
trol 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, depending on road surface and tire
conditions. Select a set speed suitable for the
prevailing conditions and when necessary,
apply the brakes manually.
Further information about "Driving off-road"
(
Ypage 180).
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Activating/deactivating DSR
If you activateDS Rand no spee dhas been
set ,th evehicl edecelerate sto 3mph
(6 km/ h).
Yo u can only activate DSR when driving at
speeds below 20 mph (30 km/h).
Activating DSR
XPress button :.
Indicator lamp ;lights up.
The status indicator in the multifunction
display shows, e.g. DSR 6 km/h
.
If the current vehicle speed is too high, the
DSR icon appears in the multifunction dis-
play. You will also see the message: Max.
Speed 30 km/h.
If you enter or exit a parking space using
Active Parking Assist, and press button :,
indicator lamp ;flashes. DSR can then not
be switched on.
Deactivating DSR
XPress button :.
Indicator lamp ;goes out.
The DSR symbol appears in the multifunc-
tion display with the Off
message.
DSR switches off automatically if you drive
faster than 22 mph (35 km/h). The DSR sym-
bol appears in the multifunction display with
the Off
message. You also hear a warning
tone.
Display in the assistance graphic
XSelect the Assistance Graphicfunction
using the on-board computer
(
Ypage 227).
When DSR is activated symbol :appears
in the assistance graphics display.
Changing the set speed while the vehi-
cle is in motion
When DSR is activated, you can change the
set speed to a value between 2 mph and
11 mph (Canada: between 4 km/h and
18 km/h) while the vehicle is in motion.
XTo increase or decrease in 1 mph incre- ments (Canada: 1 km/h increments):
briefly press the cruise control lever to the
pressure point, up :for a higher set speed
or down ;for a lower set speed.
The set value appears in the status indica-
tor of the multifunction display.
198Driving systems
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The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic
car wash, the compressed-air brakes on a
truck or a pneumatic drill could cause
PARKTRONIC to malfunction.
PARKTRONIC may not function correctly on
uneven terrain.
PARKTRONIC is activated automatically when
you:
Rswitch on the ignition
Rshift the transmission to position D,Ror N
Rrelease the electric parking brake
Range of the sensors
General notes
PARKTRONIC does not take objects into con-
sideration that are:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhang-
ing loads, truck overhangs or loading
ramps.
:Sensors in the front bumper, left-hand
side (example)
The sensors must be free from dirt, ice or
slush. They can otherwise not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(
Ypage 317). Range
Front sensors
CenterApprox. 40 in (approx.
100 cm)
CornersApprox. 24 in (approx.
60 cm)
Rear sensors
CenterApprox. 48 in (approx.
120 cm)
CornersApprox. 32 in (approx.
80 cm)
Minimum distance
CenterApprox. 8 in (approx.
20 cm)
CornersApprox. 6 in (approx.
15 cm)
If there is an obstacle within this range, the
relevant warning displays light up and a warn-
ing tone sounds. If the distance falls below
the minimum, the distance may no longer be
shown.
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Warning displays
:Segments on the left-hand side of the
vehicle
;Segments on the right-hand side of the
vehicle
=Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center air vents.
The warning display for the rear area is loca-
ted on the headliner in the rear compartment. The warning display for each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
Transmission
positionWarning display
DFront area activated
R, Nor the vehicle
is rolling back-
wardsRear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle. From the:
Rsixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:Indicator lamp
;Deactivating/activating PARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position 2in
the ignition lock.
202Driving systems
Driving and parking

Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is then
deactivated and the
indicator lamp on the
PARKTRONIC button
lights up.PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is then
deactivated.The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 317).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves.
XSee if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC (
Ypage 200).
Important safety notes
Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
!If unavoidable, you should drive over
obstacles such as curbs slowly and not at a
sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
RWhere parking or stopping is prohibited
RIn front of driveways or entrances and exits
ROn unsuitable surfaces
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Parking tips:
ROn narrow roads, drive as close to the park-
ing space as possible.
RParking spaces that are littered or over-
grown might be identified or measured
incorrectly.
RParking spaces that are partially occupied
by trailer drawbars might not be identified
as such or be measured incorrectly.
RSnowfall or heavy rain may lead to a parking
space being measured inaccurately.
RPay attention to the PARKTRONIC
(
Ypage 202) warning messages during the
parking procedure.
RYou can intervene in the steering procedure
to correct it at any time. Active Parking
Assist will then be canceled.
RWhen transporting a load which protrudes
from your vehicle, you should not use
Active Parking Assist.
RNever use Active Parking Assist when snow
chains are installed.
RMake sure that the tire pressures are
always correct. This has a direct influence
on the parking characteristics of the vehi-
cle.
Use Active Parking Assist for parking spaces:
Rthat are parallel or at right-angles to the
direction of travel
Rthat are on straight roads, not bends
Rthat are on the same level as the road, e.g. not on the pavement
Detecting parking spaces
Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking
procedure is calculated, e.g. overhanging
loads, tail sections or loading ramps of goodsvehicles.
GWARNING
If there are objects above the detection range:
RActive Park Assist may steer too early
Rthe vehicle may not stop in front of these
objects
You may cause a collision as a result. There is
a risk of an accident.
If objects are located above the detection
range, stop and deactivate Active Parking
Assist.
For further information on the detection
range (
Ypage 201).
Active Parking Assist does not assist you
parking in spaces at right angles to the direc-
tion of travel if:
Rtwo parking spaces are located directly
next to one another
Rthe parking space is directly next to a low
obstacle such as a low curb
Ryou park forwards
Active Parking Assist does not assist you
parking in spaces that are parallel or at right
angles to the direction of travel if:
Rthe parking space is on a curb
Rthe system reads the parking space as
being blocked, for example by foliage or
grass paving blocks
Rthe area is too small for the vehicle to
maneuver into
Rthe parking space is bordered by an obsta- cle, e.g. a tree, a post or a trailer
Example: parking symbol
:
Detected parking space on the left
;Parking symbol
=Detected parking space on the right
204Driving systems
Driving and parking

Active Parking Assist is switched on automat-
ically when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the
system independently locates and measures
parking spaces on both sides of the vehicle.
Active Parking Assist will only detect parking
spaces:
Rthat are parallel or at right-angles to the
direction of travel
Rthat are parallel to the direction of travel
and at least 59 in (1.5m) wide
Rthat are parallel to the direction of travel
and at least 39.5 in (1.0 m) longer than your
vehicle
Rthat are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider
than your vehicle
iNote that Active Parking Assist cannot
measure the length of a parking space if it
is at right angles to the direction of travel.
You will need to judge whether your vehicle
will fit into the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see parking symbol ;as
a status indicator in the instrument cluster.
When a parking space has been detected, an
arrow towards the right or the left also
appears. By default, Active Parking Assist
onl y d
isplays parking spaces on the front-
passenger side. Parking spaces on the driv-
er's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
activated until you confirm the use of Active
Parking Assist by pressing the abutton on
the multifunction steering wheel. The system
automatically determines whether the park-
ing space is parallel or at right-angles to the
direction of travel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 50 ft (15 m) away from it.
Parking
GWARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
iWhen PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically
during the parking process. You are respon-
sible for braking in good time.
XStop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
XShift the transmission to position R.
The Start Park Assist?
Yes: OKNo:
% message appears in the multifunction
display.
XTo cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
XTo park using Active Parking Assist:
press the abutton on the multifunction
steering wheel.
The Park Assist Active Accelerate
and BrakeObserve Surroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake at
all times. When backing up, drive at a speed
below approximately 6 mph (10 km/h).
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