2016 MERCEDES-BENZ GLA light

If OCS determines that: R
the front-passenger seat is unoccupied, the
PASSENGER AIR BAG OFF indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front air bag is deactivated. R
the front-passenger seat is occupied by a
child of up to twelve months old, in a stand-
ard child restraint system, the PASSENGER
AIR BAG OFF indicator lamp lights up after
the system self-test and remains lit. This
indicates that the front-passenger front air
bag is deactivated.
But even in the case of a twelve-month-old
child, in a standard child restraint system,
the PASSENGER AIR BAG ON can light up
permanently after the system self-test. This
indicates that the front-passenger front air
bag is activated. The result of the classifi-
cation is dependent on, among other fac-
tors, the child restraint system and the
child's stature. It is recommended that you
install the child restraint system on a suit-
able rear seat. R
the front-passenger seat is occupied by a
person of smaller stature (e.g. a teenager
or small adult), either the PASSENGER AIR
BAG ON or PASSENGER AIR BAG OFF indi-
cator lamp lights up and remains lit after
the system self-test depending on the
result of the classification. -
If the PASSENGER AIR BAG ON indicator
lamp lights up, move the front-passenger
seat as far back as possible. Alterna-
tively, a person of smaller stature can sit
on a rear seat. -
If the PASSENGER AIR BAG OFF indicator
lamp is lit, a person of smaller stature
should not use the front-passenger seat. R
the front-passenger seat is occupied by an
adult or a person of adult stature, the
PASSENGER AIR BAG ON indicator lamp
lights up after the system self-test and
remains lit. This indicates that the front-
passenger front air bag is activated. If children are traveling in the vehicle, be sure
to observe the notes on "Children in the vehi-
cle" ( Y
page 58).
When OCS is malfunctioning, the red u
restraint system warning lamp in the instru-
ment cluster and the PASSENGER AIR BAG
OFF indicator lamp light up simultaneously.
The front-passenger front a ir bag is deactiva-
ted in this case and does not deploy during an
accident. Have the system checked by quali-
fied technicians as soon as possible. Consult
an authorized Mercedes-Benz Center. The
front-passenger seat should only be repaired
at an authorized Mercedes-Benz Center.
If the front-passenger seat, the seat cover or
the seat cushion is damaged, have the nec-
essary repair work carried out at an author-
ized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy. The Occupant Classification
System (OCS) categorizes the occupant in the
front-passenger seat. Depending on that
result, the front-passenger front air bag is
either enabled or deactivated.
System self-test
G DANGER
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The front-
passenger front air bag might be triggered
unintentionally or might not be triggered at all
in the event of an accident with high deceler-
ation. This poses an increased risk of injury or
even fatal injury.
In this case the front-passenger seat may not
be used. Do not install a child restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at a qualified spe-
cialist workshop.Occupant safety 53
Safety Z

Problems with the Occupant Classification System (OCS) Be sure to observe the notes on "System self-test" ( Y
page 53).
Problem
Possible causes/consequences and P Solutions
The PASSENGER AIR
BAG OFF indicator
lamp lights up and
remains lit, even
though the front-
passenger seat is occu-
pied by an adult or a
person of a stature cor-
responding to that of an
adult. The classification of the person on the front-passenger seat is
incorrect. X
Make sure the conditions for a correct classification of the per-
son on the front-passenger seat are met ( Y
page 51).X
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the
front-passenger seat may not be used. X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center.
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is: R
unoccupied R
occupied with the
weight of a child up
to twelve months old
in a child restraint
system OCS is malfunctioning. X
Make sure there is nothing between the seat cushion and the
child seat. X
Make sure that the entire base of the child restraint system rests
on the seat cushion of the front-passenger seat. The backrest of
the forward-facing child restraint system must lie as flat as pos-
sible against the backrest of the front-passenger seat. If nec-
essary, adjust the position of the front-passenger seat. X
Make sure that the seat cushion length is fully retracted. X
When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight using the front-
passenger seat adjustment. This could result in the seat belt and
the child restraint system being pulled too tightly. X
Check for correct installation of the child restraint system.
Make sure that the head restraint does not apply a load to the
child restraint system. If necessary, adjust the head restraint
accordingly. X
Make sure that no objects are applying additional weight onto
the seat. X
If the PASSENGER AIR BAG OFF indicator lamp remains off and/
or the PASSENGER AIR BAG ON indicator lamp lights up, do not
install a child restraint system on the front-passenger seat. It is
recommended that you install the child restraint system on a
suitable rear seat. X
Have OCS checked as soon as possible at an authorized
Mercedes-Benz Center. Occupant safety 55
Safety Z

Deployment of Emergency Tensioning
Device s an d air bags
Important safet y notes
G WARNING
The air bag parts are hot after an air bag has
bee n deployed . There is a ris k of injury.
Do no t touch th e air bag parts . Hav e a
deployed air bag replaced at a qualified spe -
cialis t workshop as soo n as possible.
G WARNING
A deployed air bag no longer offers any pro -
tection and canno t provid e th e intended pro -
tection in an accident. There is an increase d
ris k of injury.
Hav e th e vehicle towed to a qualified special-
ist workshop in order to hav e a deployed air
bag replaced.
It is important fo r your safet y and that of your
passenger to hav e deployed air bags replaced
and to hav e any malfunctionin g air bags
repaired. Thi s will hel p to mak e sur e th e air
bags continue to perform their protective
function fo r th e vehicle occupant s in th e
event of a crash .
G WARNING
Pyrotechnic Emergency Tensioning Devices
that hav e bee n deployed are no longer opera-
tional and are unable to perform their inten-
ded protective function . Thi s poses an
increase d ris k of injury or eve n fatal injury.
Therefore, hav e pyrotechni c Emergency Ten -
sioning Devices whic h hav e bee n triggere d
immediately replaced at a qualified specialis t
workshop .
If Emergency Tensioning Devices are trig-
gered or air bags are deployed , you will hear a
bang, and a small amount of powder may also
be released. The u restrain t system warn -
in g lamp lights up.
Only in rar e cases will th e ban g affec t your
hearing. The powder that is release d gener-
ally doe s no t constitute a health hazard , but it may caus e short-term breathin g difficulties in
people wit h asthm a or other respirator y prob-
lems. Provided it is saf e to do so, you should
leav e th e vehicle immediately or ope n th e
window in order to preven t breathin g difficul-
ties.
Ai r bags and pyrotechni c Emergency Tension-
in g Devices (ETDs) contain perchlorat e mate-
rial , whic h may require special handlin g and
regard fo r th e environment. National guide-
lines mus t be observed durin g dis posa l. In
C alifornia, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Method of operation Durin g th e first stage of a collision , th e
restrain t system contro l uni t evaluates impor -
tant physical dat a relatin g to vehicle deceler -
ation or acceleration , suc h as:R
duration R
direction R
intensit y
Based on th e evaluation of this data, th e
restrain t system contro l uni t triggers th e
Emergency Tensioning Devices durin g a fron -
ta l or rea r collision .
An Emergency Tensioning Devic e can only be
triggered, if: R
th e ignition is switched on R
th e component s of th e restrain t system are
operational. You can fin d further informa-
tion under: "Restrain t system warnin g
lamp " ( Y
page 43) R
th e belt tongue is engage d in th e buckl e on
th e respective front-passenger seat
The Emergency Tensioning Devices in th e
rea r compartmen t are triggere d independ -
entl y of th e loc k status of th e seat belts.
If th e restrain t system contro l uni t detects a
more severe accident, further component s of
th e restrain t system are activated independ -
entl y of eac h other in certain fronta l collision
situations:56
Occupant safety
Safety

How the air bag system works is deter-
mined by the severity of the accident detec-
ted, especially the vehicle deceleration or
acceleration and the apparent type of acci-
dent: R
frontal collision R
side impact R
rollover
Automatic measures after an acci-
dentImmediately after an accident, the following
measures are implemented, depending on
the type and severity of the impact: R
the hazard warning lamps are activated R
the emergency lighting is activated R
the vehicle doors are unlocked R
the front side windows are lowered R
the engine is switched off and the fuel sup-
ply is cut off R
vehicles with mbrace: automatic emer-
gency call
Children in the vehicle
Important safety notes
Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For
this reason, Mercedes-Benz strongly advises
that you install a child restraint system on a
rear seat. Children are generally better pro-
tected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle: R
always secure the child in a child restraint
system suitable for Mercedes-Benz vehi-
cles. The child restraint system must be appropriate to the age, weight and size of
the child R
be sure to observe the instructions and
safety notes in this section in addition to
the child restraint system manufacturer's
installation instructions R
be sure to observe the instructions and
safety notes on the "Occupant Classifica-
tion System (OCS)" ( Y
page 51)
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro-
tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.58
Children in the vehicle
Safety

G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro-
tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Child-proof locks for the rear doors
You secure each door individually with the
child-proof locks on the rear doors. A door
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside. X
To activate: press the child-proof lock
lever up in the direction of arrow C .X
Make sure that the child-proof locks are
working properly. X
To deactivate: press the child-proof lock
lever down in the direction of arrow D . Override feature for the rear side win-
dows X
To activate/deactivate: press button C .
If indicator lamp D is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv-
er's door. If indicator lamp D is off, oper-
ation is possible using the switches in the
rear compartment.
Pets in the vehicle
G WARNING
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could: R
activate vehicle equipment and become
trapped, for example R
activate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud-
den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.64
Pets in the vehicle
Safety

Drivin g safet y systems
Overview of drivin g safet y systemsIn this section , you will fin d information about
th e following drivin g safet y systems :R
AB S ( A nti-loc k B rakin g S ystem)
( Y
page 65) R
BA S ( B rake A ssist S ystem) ( Y
page 66 )R
COLLISION PREVENTION ASSIST PLU S
( Y
page 66 )R
ES P ®
( E lectronic S t ability P rogram)
( Y
page 69 )R
EB D ( E lectroni c B r ak e forc e D i stribution )
( Y
page 72) R
ADAPTIV E BRAKE ( Y
page 73 )R
STEE R CONTROL ( Y
page 73 )
Important safet y notesIf you fail to adapt your drivin g style or if you
are inattentive , th e drivin g safet y systems can
neither reduce th e ris k of an acciden t no r
override th e laws of physics. Driving safet y
systems are merely aids designed to assist
driving. You are responsible fo r maintainin g
th e distanc e to th e vehicle in front, fo r vehicle
speed, fo r braking in goo d time, and fo r stay-
in g in lane. Always adapt your drivin g style to
suit th e prevailin g road and weather condi-
tion s and maintain a saf e distanc e from th e
vehicle in front. Drive carefully.
The drivin g safet y systems described only
wor k as effectively as possible when there is
adequat e contact between th e tires and th e
road surface. Please pay special attention to
th e note s on tires , recommended minimum
tire tread depths, etc. ( Y
page 340).
In wintr y drivin g conditions, always use winte r
tires (M+ S tires ) and if necessary, snow
chains. Only in this way will th e drivin g safet y
systems described in this section wor k as
effectively as possible. ABS (Anti-lock Braking System)
General information AB S regulates brake pressure in suc h a way
that th e wheels do no t loc k when you brake .
Thi s allow s you to continue steerin g th e vehi-
cl e when braking .
The % AB S warnin g lamp in th e instrumen t
cluster lights up when th e ignition is switched
on . It goe s out when th e engin e is running .
AB S works from a speed of about 5 mph
(8 km/h), regardles s of road-surfac e condi-
tions. AB S works on slipper y surfaces, eve n
when you only brake gently.
Important safet y notes
i Observ e th e "Important safet y notes" sec -
tion ( Y
page 65).
G WARNING
If AB S is faulty, th e wheels could loc k when
braking . The steerability and braking charac -
teristics may be severely impaired. Addition -
ally, further drivin g safet y systems are deac -
tivated. There is an increase d danger of skid-
din g and accidents .
Drive on carefully. Hav e AB S checke d imme-
diately at a qualified specialis t workshop .
Whe n AB S is malfunctioning, other systems ,
includin g drivin g safet y systems , will also
becom e inoperative . Observ e th e information
on th e AB S warnin g lamp ( Y
page 269) and
display message s whic h may be shown in th e
instrumen t cluster ( Y
page 236).
Braking X
If ABS intervenes: continue to depress th e
brake peda l vigorousl y until th e braking sit -
uation is over. X
To make a full brak e application:
depress th e brake peda l wit h full force.
If AB S intervenes when braking , you will feel a
pulsin g in th e brake pedal.Driving safety systems 65
Safety Z

You can select between the following states
of ESP ®
:R
ESP ®
is activated.R
SPORT handling mode is activated. R
ESP ®
is deactivated.
G WARNING
When SPORT handling mode is activated,
there is a greater risk of skidding and acci-
dents.
Only activate SPORT handling mode in the sit-
uations described in the following.
G WARNING
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.
In the following situations, it may be better to
activate SPORT handling mode or deactivate
ESP ®
: R
when using snow chains R
in deep snow R
on sand or gravel R
on specially designated roads when the
vehicle's own oversteering and understeer-
ing characteristics are desired
Driving in SPORT handling mode or without
ESP ®
requires an extremely qualified and
experienced driver.
i Activate 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 ®
X
To activate SPORT handling mode:
briefly press button C .
The t SPORT handling mode warning
lamp in the instrument cluster lights up.
The SPORT handling mode message
appears in the multifunction display. X
To deactivate SPORT handling mode:
briefly press button C .
The t SPORT handling mode warning
lamp in the instrument cluster goes out. X
To deactivate ESP ®
: press button C until
the

ADAPTIVE BRAKE ADAPTIV E BRAKE enhance s braking safet y
and offers increased braking comfort . In addi-
tion to th e braking function , ADAPTIV E BRAKE
also has th e HOLD function ( Y
page 193) and
hill start assist ( Y
page 153).
STEER CONTROL
Gene ra l inf orm ationSTEE R CONT ROL help s you by transmitting a
noticeable steering force to th e steering
whee l in th e direction require d for vehicl e
stabilization .
This steering assistanc e is provide d in partic-
ular if: R
bot h right wheels or bot h lef t wheels are on
a wet or slippery road surfac e when you
brake. R
th e vehicl e start s to skid.
Import ant safety notes
i Obs erv e th e "Importan t safet y notes" sec -
tion ( Y
page 65).
No steering assistanc e is provide d from
STEE R CONTROL, if: R
ES P ®
is malfunctioning .R
th e lighting is faulty.
If ES P ®
is malfunctioning , you will be assisted
further by th e electrical power steering .
Protecti on against theft
Imm obilizer
The immobilize r prevents your vehicl e from
bein g started without th e correc t SmartKey. X
To act iva te wit h th e SmartKey : remove
th e SmartKey from th e ignition lock.X
To act iva te wit h KEYLESS-GO start-
fu nction or KEYLESS-GO: switch th e igni-
tion off and open th e driver' s door .X
To deacti va te: switch on th e ignition .
When leaving th e vehicle, always tak e th e
SmartKey wit h you and loc k th e vehicle. Any-
on e can start th e engin e if a valid SmartKey
has been lef t inside th e vehicle.
i The immobilize r is always deactivated
when you st art th e engine.
In th e event that th e engin e canno t be star-
te d (yet th e vehicle's battery is charged),
th e system is no t operational. Contac t an
authorize d Mercedes-Benz Cente r or call
1-800-FOR-MERCedes (in th e USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft ala rm system)
X
To arm: loc k th e vehicl e wit h th e SmartKey
or KE YLE SS-GO .
Indicato r lamp C flashes . The alarm sys-
te m is armed after approximately
15 sec onds. X
To disarm: unloc k th e vehicl e wit h th e
SmartKey or KEYLESS-GO .
or X
Inser t th e SmartKey int o th e ignition lock.Protection against theft 73
Safety Z