2016 MERCEDES-BENZ GLA-Class brake light

sions at low speeds where there is no visible
damage to the front of the vehicle.
Switching on/off
The COLLISION PREVENTION ASSIST PLUS is
automatically active after switching on the
ignition.
You can activate or deactivate COLLISION
PREVENTION ASSIST PLUS in the on-board
computer (
Ypage 228). When deactivated,
the distance warning function and the auton-
omous braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLUS is
deactivated, the æsymbol appears in the
assistance graphics display.
Distance warning function
General information
The distance warning function can help you to
minimize the risk of a front-end collision with
a vehicle ahead or reduce the effects of such a collision. If the distance warning function
detects that there is a risk of a collision, you
will be warned visually and acoustically.
Important safety notes
iObserve the "Important safety notes" sec-
tion for driving safety systems (
Ypage 65).
GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
GWARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at a speed of approximately 4 mph
(7 km/h), the distance warning function
warns you if you rapidly approach a vehicle in
front. An intermittent warning tone will then
sound, and the ·distance warning lamp
will light up in the instrument cluster.
XBrake immediately in order to increase the distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause the system to display a warning.
With the help of the radar sensor system, the
distance warning function can detect obsta-
cles that are in the path of your vehicle for an
extended period of time.
Up to a speed of approximately 44 mph
(70 km/h), the distance warning function can
also react to stationary obstacles, such as
stopped or parked vehicles.
Autonomous braking function
If the driver does not react to the distance
warning signal in a critical situation, COLLI-
SION PREVENTION ASSIST PLUS can assist
with the autonomous braking function.
Driving safety systems67
Safety
Z

Always pay careful attention to the traffic sit-uation and be ready to brake.
Due to the nature of the system, particularly
complicated but non-critical driving condi-
tions may also cause Brake Assist to inter-
vene.
If adaptive Brake Assist is not available due to
a malfunction in the radar sensor system, the
brake system remains available with full
brake boosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-
tion (
Ypage 65).
ESP
®monitors driving stability and traction,
i.e. power transmission between the tires and the road surface.
If ESP
®detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. The engine output is also modified to
keep the vehicle on the desired course within
physical limits. ESP
®assists the driver when
pulling away on wet or slippery roads. ESP®
can also stabilize the vehicle during braking.
ETS/4ETS (Electronic Traction System)
iObserve the "Important safety notes" sec-
tion (
Ypage 65).
ETS traction control is part of ESP
®. On vehi-
cles with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
Off-road 4ETS (Electronic Traction Sys-
tem)
A 4ETS system specifically suited to off-road
terrain is activated automatically once the off-
road program is activated (
Ypage 199).
Important safety notes
iObserve the "Important safety notes" sec-
tion (
Ypage 65).
GWARNING
If ESP
®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP
®checked at a
qualified specialist workshop.
Vehicles without 4MATIC: when towing
your vehicle with the front axle raised, it is
important that you observe the notes on ESP
®
(Ypage 335).
If the å ESP
®OFF warning lamp lights up
continuously, ESP®is deactivated.
If the ÷ ESP
®warning lamp and the å
warning lamp are lit continuously, ESP®is not
available due to a malfunction.
Observe the information on warning lamps
(
Ypage 271) and display messages which
may be shown in the instrument cluster
(
Ypage 236).
Only use wheels with the recommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the ÷ ESP
®warning lamp goes out
before beginning the journey, ESP®is auto-
matically active.
If ESP
®intervenes, the ÷ESP®warning
lamp flashes in the instrument cluster.
Driving safety systems69
Safety
Z

If ESP®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving style to suit the prevail-
ing road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle
stops moving. The engine starts automati-
cally when the driver wants to pull away again.
ESP
®remains in its previously selected sta-
tus. Example: if ESP®was deactivated before
the engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
Deactivating/activating ESP®(except
Mercedes‑AMG vehicles)
Important safety notes
You can select between the following states
of ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP®in the fol-
lowing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehi- cle if the vehicle starts to skid or a wheel
starts to spin.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated.
You could otherwise damage the drivetrain.
Deactivating/activating ESP
®
You can deactivate or activate ESP®via the
on-board computer (
Ypage 227).
ESP
®deactivated:
The å ESP
®OFF warning lamp in the
instrument cluster lights up.
ESP
®activated:
The å ESP
®OFF warning lamp in the
instrument cluster goes out.
Characteristics when ESP
®is deactivated
If ESP
®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in
the instrument cluster flashes. In such situa-
tions, ESP
®will not stabilize the vehicle.
If you deactivate ESP
®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheels are able to spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
RTraction control is still activated.
RCOLLISION PREVENTION ASSIST is no lon-
ger available; nor is it activated if you brake firmly with assistance from ESP
®.
RESP®still provides support when you brake
firmly.
Deactivating/activating ESP®
(Mercedes‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (
Ypage 65).
70Driving safety systems
Safety

ADAPTIVE BRAKE
ADAPTIVEBRAKE enhance sbraking safet y
and offers increased braking comfort .In addi-
tion to th ebraking function ,ADAPTIV EBRAKE
also has th eHOLD function (
Ypage 193) and
hill start assist (
Ypage 153).
STEER CONTROL
Gene ral inform ation
STEERCONT ROLhelpsyou by transmitting a
noticeable steering force to th esteering
whee lin th edirection require dfor vehicl e
stabilization .
This steering assistanc eis provide din partic-
ular if:
Rbot hright wheels or bot hlef twheels are on
a wet or slippery road surfac ewhen you
brake.
Rth evehicl estart sto skid.
Import ant safety notes
iObserveth e"Importan tsafet ynotes" sec -
tion (
Ypage 65).
No steering assistanc eis provide dfrom
STEE RCONTROL, if:
RES P®is malfunctioning .
Rthelighting is faulty.
If ES P
®is malfunctioning ,you will be assisted
further by th eelectrical power steering .
Protectionagainst theft
Imm obilizer
The immobilize rprevents your vehicl efrom
bein gstarted without th ecorrec tSmartKey.
XTo act ivate wit hth eSmartKey :remove
th eSmartKey from th eignition lock.
XTo act ivate wit hKEYLESS-GO start-
fu nction or KEYLESS-GO: switch theigni-
tion off and open th edriver' sdoor .
XTo deacti vate:switch on th eignition .
When leaving th evehicle, always tak eth e
SmartKey wit hyou and loc kth evehicle. Any-
on ecan start th eengin eif avalid SmartKey
has been lef tinside th evehicle.
iThe immobilize ris always deactivated
when you start theengine.
In th eevent that th eengin ecanno tbe star-
te d(yet th evehicle's battery is charged),
th esystem is no toperational. Contac tan
authorize dMercedes-Benz Cente ror call
1-800-FOR-MERCedes (in th eUSA) or
1-800-387-0100 (in Canada).
ATA (anti-theft ala rmsystem)
XTo arm: lockth evehicl ewit hth eSmartKey
or KE YLESS-GO .
Indicato rlamp :flashes .The alarm sys-
te m is armed after approximately
15 seconds.
XTo disarm: unlockth evehicl ewit hth e
SmartKey or KEYLESS-GO .
or
XInser tth eSmartKey int oth eignition lock.
Protection against theft73
Safety
Z

High-beam flasher
XTo switch on:turn the SmartKey in the
ignition lock to position 1or 2, or start the
engine.
XPull the combination switch in the direction
of arrow =.
Hazard warning lamps
XTo switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a
turn signal using the combination switch,
only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
XTo switch off the hazard warning lamps:
press button :.
The hazard warning lamps automatically
switch on if:
Ran air bag is deployed or
Rthe vehicle decelerates rapidly from a
speed of above 45 mph (70 km/h) and
comes to a standstill
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
above 6 mph (10 km/h) again after a full
brake application.
The hazard warning lamps still operate if the
ignition is switched off.
Cornering light function
The cornering light function improves the illu-
mination of the road over a wide angle in the
direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the low-beam headlamps
are switched on.
Active:
Rif you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
Rif you are driving at speeds between
25 mph (40 km/h) and 45 mph (70 km/h)
and turn the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than three minutes.
Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of
the headlamp.
Exterior lighting119
Lights and windshield wipers
Z

Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Overview: changing bulbs/bulb types
You can replace the following bulbs. The bulb
type can be found in the legend.
Vehicles with halogen headlamps
:
Turn signal lamp: PY 21 W
;Low-beam headlamp/daytime running
lamp/parking lamp/standing lamp:
H15 55 W/15 W
=Low-beam headlamp: H15 55 W
Vehicles with Bi-Xenon headlamps
:
Cornering lamp: H7 55 W
Tail lamps (vehicles with halogen headlamps)
:
Backup lamp: W 16 W
;Turn signal lamp: PY 21 W
=Brake lamp: W 16 W
?Rear fog lamp: H 21 W
Changing the front bulbs
Removing and installing the cover in the
front wheel housing
You must remove the cover of the front wheel
housing before you can change the front turn signal lamp.
XTo remove: switch off the lights.
XTurn the front wheels inwards.
XSlide cover:up and remove it.
XTo install: insert cover :again and slide it
down until it engages.
122Replacing bulbs
Lights and windshield wipers

XLoosen screws=using a screwdriver.
XRemove the bulb holder from the tail lamp.
Bulb holder
?
Turn signal
ABrake lamp
XTurn signal: press the bulb gently into the
bulb holder, turn it counter-clockwise and
remove it from the bulb holder.
XInsert the new bulb into bulb holder and
turn it clockwise.
XBrake lamp: remove the corresponding
bulb from the bulb holder.
XInsert the new bulb into the bulb holder.
XInsert the bulb holder into the tail lamp and
screw it firmly into place using screws =.
XInsert the tail lamp into the vehicle.
XTighten fender nut:and re-establish con-
tact with connector ;.
XClose the side trim panel (Ypage 124).
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when
the windshield is dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always use washer fluid when operating the wind-
shield wipers.
!If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash.
Combination switch
1
$ Windshield wiper off
2ÄIntermittent wipe, low (rain sensor
set to low sensitivity)
3Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4° Continuous wipe, slow
5¯Continuous wipe, fast
BíSingle wipe/î Wipes the wind-
shield using washer fluid
XSwitch on the ignition.
XTurn the combination switch to the corre-
sponding position.
!Vehicles with a rain sensor: if the wind-
shield becomes dirty in dry weather condi-
tions, the windshield wipers may be activa-
ted inadvertently. This could then damage
the windshield wiper blades or scratch the
windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
Vehicles with a rain sensor: in the Äor
Å position, the appropriate wiping fre-
quency is automatically set according to the
intensity of the rain. In the Åposition, the
Windshield wipers125
Lights and windshield wipers
Z

Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in
the ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO (
Ypage 77).
Do not keep the KEYLESS-GO key:
Rwith electronic devices, e.g. a mobile
phone or another SmartKey.
Rwith metallic objects, e.g. coins or metal
foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of KEYLESS-
GO.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will not be able to start the engine with the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the but- ton on the front door (
Ypage 84), you can
continue to start the engine with the Start/
Stop button.
The engine can be switched off while the vehi-
cle is in motion by pressing and holding the
Start/Stop button for three seconds. This
function operates independently of the ECO
start/stop automatic engine switch-off func-
tion. Key positions with the Start/Stop button
:Start/Stop button
;Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. Further information on situations where
an indicator lamp either fails to go out after
starting the engine or lights up while driving
(
Ypage 268).
If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
XTo switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
The power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop button :twice when
in this position
XTo switch on the ignition: press Start/
Stop button :twice.
The ignition is switched on.
If you press Start/Stop button :once
when in this position, the ignition is
switched off again.
Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as nor-
mal using the SmartKey.
150Driving
Driving and parking