2018 AUDI TT ROADSTER warning light

Airbag system
prevent proper deployment of the airbag.
Small objects can be thrown through the
vehicle if the airbag deploys and injure you
or your passenger .
- Make sure there are no cracks, deep scratch­
es or other damage in the area of the instru­
ment panel where the knee airbags are lo­
cated.
- If children are incorrectly seated, their risk
of injury increases in a collision
c:> page 216, Child safety.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 167 Side airbag locat ion in t he drive r's se at
The side airbags are located in the sides of the
front seat backrests
c:> fig. 167 facing the doors .
They are identified by the word "AIRBAG".
The side airbags installed for the front seating
positions have been designed and certified to
help reduce the risk of injury that can be caused
by airbags when they inflate, particularly when
the occupant sitting next to it is not seated prop­
erly. The side airbag for the front passenger seat
can be used with properly installed child re­
straints. Please be sure to read the important in­
formation and warnings whenever using a child
restraint in a vehicle: Safety belts
c:> page 187,
Airbag system c:>page 194, Child safety
c:> page 216 .
The side airbag system basically consists of:
-the electronic control module and externa l side
impact sensors
212
-the two side airbags located in the sides of the
front backrests
-the airbag warning light in the instrument clus-
ter.
The airbag system is mon itored electron ically to
make certain that it is functioni ng properly at all
times. Each time you turn on the ignition, the air­
bag system indicator light will come on for a few
seconds (self diagnostics) .
The side airbag system supplements the safety
belts and can help to reduce the risk of injury to
the driver's and front passenger's upper torso on
the side of the vehicle that is struck in a side col­
lision. The airbag deploys in side impacts and on­
ly when the vehicle acceleration registered by the
control unit is high enough. If this rate is below
the reference value programmed into the control
unit, the side airbags will not be tr iggered, even
though the car may be badly damaged as a result
of the collision.
It is not possible to define an air­
bag triggering range that w ill cover every possi­
ble angle of impact, since the circumstances will
vary considerably between one collision and an­
other. Important factors include, for example,
the nature (hard or soft) of the impacting object,
the angle of impact, vehicle speed, etc.
c:> page 214, Important safety instructions on
the side airbag system.
Aside from their normal safety function, safety
belts work to help keep the driver or front pas­
senger in position in the event of a side collision
so that the side airbags can provide protection.
The airbag system is
not a substitute for your
safety belt. Rather, it is part of the overall occu­
pant restraint system in your vehicle . Always re­
member that the side airbag system can only
help to protect you if you are wear ing your safety
belt and wear ing it properly. This is another rea­
son why you sho uld always wear your safety
belts, not just because the law requires you to do
so
c:> page 187, General notes.
It is impo rtant to remember that while the sup­
plemental side airbag system is designed to re­
duce the likelihood of ser ious injuries, other inju­
ries, for example, swelling, bruising , friction
burns and minor abrasions can also be associated
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with deployed side airbags. Remember too, side
airbags wi ll deploy on ly once and on ly in certain
kinds of acc idents -your safety be lts are always
there to offer protection.
Vehicle damage, repair costs or even the lack of
ve hicle damage are not necessarily an indication
of over-sensitive or failed airbag act ivation. In
some collisions, both front and side a irbags may
inflate. Remember too, that airbags will deploy
only once and only in ce rtain kinds of coll is ions
-
your safety belts are always there to offer protec­
tion in those acc idents in which airbags are not
supposed to deploy or when they have already
deployed.
The side airbag system will not deploy:
-when the ign ition is switched off
-in side collisions when the acceleration meas-
ured by the sensor is too low
-in front-end collisions
-in rear-end collisions
-in rollovers.
I n some types of accidents the front airbags and
side airbags may be triggered together.
_& WARNING
-Safety belts and the airbag system will only
provide protection when occupants are in
the proper seating position¢
page 214.
-If the airbag indicator light q page 14
comes when the vehicle is being used, have
the system inspected immed iate ly by your
authorized Audi dealer. It is possible that
the a irbag will inflate when it is not sup­
posed to, or will not inflate when it should.
Airbag system
How supplemental side airbags work
Side airbags deploy instantly and can help re­
duce the risk of upper torso injuries for occu­
pants who are properly restrained.
Fig. 168 Inflated side airbag on left side of vehicle
When the system is triggered, the airbag is filled
with propellant gas and breaks through a seam in
the seat surface area marked "AIRBAG". It ex­
pands between the side trim panel and the pas­
senger . In order to help provide this addit ional
protect ion, the side airbag must inflate w ith in a
fraction of a second at very high speed and with
great force. The supplemental sid e a irbag could
injure you if you r seating position is not proper or
u pr ight or if items are located in the area where
the supp lemental side airbag expands . This ap­
plies especially to children
¢ page 216, Child
safety.
Supplementa l side airbags inflate be ­
tween the occupant and the door panel on the
s ide of the vehicle that is struck in certain side
collision ¢
fig. 168.
Although they are not a soft pillow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the upper part
of the body .
A fine dust may develop when the airbag deploys.
This is normal and does not mean there is a fire
in the veh icle.
213

Cl 00 .-< N r-­N .-< 0 r-­Vl 00
-Never install a rearward facing child safety
seat on the front passenger seat if the
PA S·
SEN GER AIR B AG
OFF,;; light does not
turn on and stay on. Have the system in­
spected immediately by an authorized Audi
dealer or author ized Audi Service Facility .
A WARNING
-Forward-fac ing ch ild seats insta lled on the
front passenge r seat may inte rfere with the
deployment of the a irbag and cause serious
persona l inju ry to the child .
- If except ional circumstances require the use
of a forward-facing child res traint on the
front passenger's seat, the child's safety
and well-being require the following special
precautions to be taken:
- Always make sure that the forward-facing seat has been designed and cert ified by its
manufacture r fo r u se on a front passenger
seat with a front and s ide a irb ag.
- Always carefully follow the manufacturer's
instr uctions provided with the child seat
or i nfan t ca rrier.
- Never p ut the fo rward-facing child re­
s tra int up against o r very near the instru­
men t panel.
- Always move the front passenger seat to
the highest posit ion in the up and down
ad justment range and move it back to the
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible, before installing
the forward-fac ing ch ild restraint.
- Always make sure that the safety be lt up­
pe r anchorage is behind the child restra int
and not next to o r in front of the child re­
stra int so that the safety belt will be prop­
erly positioned.
- Always make sure that nothing prevents
the front passenger's seat from be ing
moved to the rearmost posit ion in its fore
and aft adjustment range .
- Never place objects on the seat (such as a
laptop, CD p laye r, electronic games de­
vice, powe r inverter or seat heater for
child se ats). These m ay influence the ele c-
Ch ild saf ety
trical capacitance measu red by the capac i­
tive passenger detection system and can also fly around in an acc ident and cause
serious personal injury .
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, powe r inverter or seat heat ­
er for child seats) on the front passenger
seat if the device is connected to the 12-
vo lt socke t or the cigarette lighter so cket.
- If a seat heate r has been retrofitted or
othe rw ise added to t he front passenger
seat, neve r insta ll any child res traint sys­
tem on this seat.
- Make su re that there a re no wet objects
(s uch as a we t towe l) and no w ater or oth­
er liquids on the front passenger seat
cushion .
- Always make sure tha t the
PASSENGER
AIR BAG
OFF ,;; light comes on and stays
on all the time whenever the ignition is
switched on .
- Never install a forward -facing chi ld safety
seat on the front passenger seat if the
PASSENGER AIR BAG OFF ~; light does
not turn on and stay on. Have the system
inspected immediately by an author ized
Audi dealer or authorized Audi Service Fa ­
c ility .
- Always buck le the child seat firmly in
place even if a child is not s itting in it . A
loose child seat can fly aro und during a
sudden stop or in a collision.
- Always read and heed all WARNINGS
whenever using a child rest raint in a vehi­
cl e
~page 187, Safety bel ts, ~page 194,
Airbag sy stem
and ~ page 216, Impor­
tant information.
(D Tips
A lways replace child restraints that were in­
stalled in a vehicle du ring a c rash . Damage to
a child restrain t that is not v is ible could cause
i t to fai l in another co llision sit uat ion .
217

Child sa fety
Advanced front airbag system and children
Your veh icle is equipped w ith a front "Advanced
A irbag System" in comp liance w it h United States
F edera l Motor Vehicle Safety Standard ( FMVSS)
208, as well as Canada Motor Vehicle Safety
Standard (CMVSS) 208 as applicable at the time
your vehicle was manufactured.
The Advanced Airbag system in your veh icle has
been certified to meet the " low-risk" require ­
ments for 3- and 6-year old children on the pas­
senger side and small adults on the driver side.
The low risk deployment criteria are intended to
reduce the risk of injury through interaction with
the airbag that can occur, for example, by being
too close to the steering wheel and instrument
panel when the a irbag inflates. In addit ion, the
system has been certified to comply w ith the
" su ppress io n" req uirements of the Safety S tand­
ard, to tu rn off the front airbag for infants up to
12 months who are restrained on the front pas­
senger seat in child restraints that are listed in
the Standard.
E ven tho ugh yo ur vehicle is equipped with an
Ad a
vanced Airbag system, a chi ld should a lways ride
in the seat proper ly restrained for its age and
size. The airbag on the passenger side makes the
front seat a potentially dangerous p lace for a
child to r ide . The front seat is not the safest place
for a child in a forward-facing child safety seat .
It
can be a very dange rous place for a n infant or a
larger child in a rearward-fac ing seat.
The vehicle's Advanced Airbag System has a ca­
pac itive passenger detect ion system in the front
passenger seat cush ion that ca n detect the pres­
ence of a baby or a child in a ch ild restraint sys­
tem on t his seat .
The capac it ive passenger detect ion system regis ­
ters the changes that result in an electr ical field
when a c hild, a child restra int, and a baby blanket
a re on the front passenge r seat. The change in
t he meas ured capacitance due to t he p resence o f
a child, a chi ld restraint, and a baby b lanket on
the front passenger seat is re lated to the chi ld
restraint system resting on the seat . The meas ­
ured capacitance of a ch ild restraint system var-
218
ies depending on the type of system and specific
make and mode l.
The elect rical capac ita nce of the va rious types,
makes, and models of child restra in ts speci fied
by the U.S . National Highway Tra ffic Safety Ad­
ministration (NHTSA) in the relevant safety
standard are stored in the Advanced Airbag Sys ­
tem control unit together with the capacitances
typ ica l of infants and a 1-year old child. When a
c hi ld restraint is used on the front passenger
seat w it h a typical 1 year-old infant, t he Ad­
vanced Airbag System compares the capacitance measured by the capacitive passenge r detect ion
system wi th the data stored in the e lec tronic co n­
tro l unit .
Child restraints and Advanced front airbag
system
Regardless of the ch ild restraint that you use,
make sure that it has been certified to meet Safe­
ty Standards and has been cert ified by its manu ­
factu rer for use w ith an airbag . If in exceptional
c ir cumstances you m ust use it on the front pas­
senger seat, ca refully read all of the information
o n chi ld safety and Advanced Airbags and heed
a ll of th e app licab le WARNINGS . Make certain
that the chi ld and chi ld restraint are correctly
recognized by the capacitive passenger detection
system in the front passenger seat, that the front passenger a irbag is turned off, and that the air­
bag status is always correct ly signa led by the
PASSENGER AIR BAG OFF ~; light.
Many types and models of child restra ints have
been available over the years, new models are in­
troduced regularly incorporating new and im­
proved designs and older models are taken out of
production . Ch ild rest rai nts are not standa rdized .
Child res tra ints of the same type typically have
d iffe rent weights and sizes and diffe re nt "foot ­
pr ints", the size and shape o f th e bo ttom of the
ch ild restraint that sits on the seat, w hen they
are installed on a vehicle seat . These differences
make it virtua lly impossib le to certify comp liance
with the requirements for advanced a irbags w ith
each and every child restra int that has ever been
sold in the past or will be sold over the course of
the useful life of your veh icle .
.,.

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For this reason, the United States National High­
way Traffic Safety Administration has published a list of specific type, makes and models of child
restraints that must be used to cert ify compli­
ance of the Advanced Airbag System in your vehi­
cle with the suppression requ irements of Federal
Motor Vehicle Safety Standard 208 . These child
restraints are:
Subp art A - C ar bed child re str aint s
Model Manufactured on or
after
Angel Guard Angel September 25, 2007 Ride AA2403FOF
Subp art B -Re ar-f acing child restr aint s
Model Manufactured on or
aft er
Century Sma rtFit 4543 December 1, 1999
Cosco Arriva September 25, 2007
22-013PAW and base
22-999WHO
Evenflo Discovery Ad -December 1, 1999
just Right 2 12
Evenflo F irst Cho ice December 1, 1999
204
Grace Infant 8457 December 1, 1999
G race Snug ride September 25, 2007
Peg Perego Primo Viag- September 25, 2007
gio SIP IMUNOOUS
Subp art C - Forward-facing and con vertibl e
child res traints
Model Manufactured on or
after
B ritax Roundabout September 25, 2007
E 9 L02xx
Cosco Tour iva 02519 December 1, 1999
Cosco S umm it Deluxe September 25, 2007
High Back Booster
22-262
Cosco High Back Boos- September 25, 2007
te r 22-209
Evenflo Tribute V September 25, 2007
379xxxx
Ch ild saf ety
Model Manufactured on or
after
Evenflo Meda llion 254 December 1, 1999
E venflo Generat io ns September 25 , 200 7
352xxxx
Graco ComfortSport September 25, 2007
Graco Todd le r Safety September 25, 2007
Seat Step 2
Graco Plat inum Cargo September 25, 2007
_&. WARNING
To reduce the risk of serious injury, ma ke sure
t hat the
PASSENGER AIR BAG OFF '-1; light
comes on and stays on whenever a child re­
straint is installed on the front passenger seat
and the ign it ion is switched on.
- Never install a reward facing child safety
seat on the front passenger seat if the
PAS­
S ENGER AIR BAG
OFF '-1; light does not
turn on and stay on.
- Have the ai rbag system inspected by your
author ized Audi dealer immed iate ly.
(D Tips
The child seats listed in categor ies A to C have
been statically tested by Audi only for the Ad­
vanced Airbag f unction.
Important safety instructions for using
child safety seats
Correct use of child safety seats substantially re­
duces the risk of injury in an accident!
As the driver, you are responsib le for the safety
of everybody in the vehicle, especia lly children:
.. Always use the right child safety seat for each
child and always use it properly ¢
page 221.
.. Always carefully follow the chi ld safety seat
manufacturer's instructions on how to route
the safety belt properly through the ch ild safe­
ty seat.
.. When us ing the veh icle safety belt to install a
child safety seat, you must first activate the
convertib le loc king ret racto r on the safety belt
to p revent the ch ild safety seat from moving
q page 225 . ..,
219

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seat if the device is connected to the 12·
volt socket or the cigarette lighter socket.
-If a seat heater has been retrofitted or
otherwise added to the front passenger
seat, never install any chi ld restraint sys­
tem on this seat.
-Make sure that there are no wet objects
(such as a wet towel) and no water or oth­
er liqu ids on the front passenger seat
cushion.
-Never place objects on the seat (such as a
laptop, CD player, electronic games de­
vice, power inverter or seat heater for
child seats). These may influence the elec­
tr ica l capacitance measured by the capaci­
tive passenge r de tection system and can
also fly around in an accident and cause
serio us personal i njury.
- Always buckle the child sa fe ty seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around during
a sudden stop or in a collision .
-Always read and heed all WARNINGS when ­
ever using a child restrained in a veh icle is
being
used¢ page 187, Safety belts,
¢page 194, Airbag system and
¢ page 216, Child safety.
A WARNING
To reduce the risk of serious injury, make sure
that the
PASSENGER AIR BAG OFF ~; light
comes on and stays on whenever a child re­
st rai nt is ins talled on the front passenger seat
and the ignition is sw itched on.
- Never install a reward facing ch ild safety
seat on the front passenger seat if the
PAS ·
SENGER AIR BAG
OFF ~; light does no t
t u rn on and stay on.
- Have the airbag system inspected by your
authorized Audi dealer i mmediately.
Ch ild s afe ty
Child safety seats
Infant seats
Babies and infants up to about one year old and
20 lbs or
9 kg need special rearward-facing child
restraints that support the back, neck and head
in a crash .
Fig. 1 69 Rearwa rd-facing infant seat, prope rly installed on
the passenger seat
.,. When using the vehicle safety belt to install a
child safety seat, yo u m ust fi rst ac tivate the
convertib le lo ckin g re trac tor on the safety belt
t o p revent t he ch ild safety seat from moving
¢ page 225 .
.,. Push the ch ild safety seat down with your full
weight to get the safety belt really tight so that
the seat cannot move forward and sideways
more than 1 in (2.S cm).
Infants up to about one yea r (20 lbs or 9 kg) are
best protected in special infant carr iers and child
safety seats designed for their age group. Many
experts be lieve that infants and small ch ildren
should ride only in special restra ints in wh ich the
child faces the back of the vehicle. These infant
seats support the baby's back, neck and head in a
cr ash
¢fig. 169.
A WARNING
No t using a child safe ty seat, using t he wrong
chi ld safety seat or imprope rly insta lli n g a
chi ld restraint increases the risk of ser ious
personal injury an d death in a crash.
-Never install a rear -fac ing ch ild restraint in
the forward-facing direction. Such restraints
are designed for the special needs of infants
and very small children and cannot protect
them proper ly if the seat is forward-facing.
221

Child safety
-Never install a rearward facing child safety
seat on the front passenger seat unless the
PASSENGER AIR BAG OFF,;; light comes
on and stays on . If the
PASSENGER AIR
BAG OFF
~; light does not come on and stay
on the inflating airbag will hit the child safe­
ty seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof. Have the airbag system inspected
immediately by your Audi dealer.
-Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket .
-If a seat heater has been retrofitted or oth·
erwise added to the front passenger seat,
never install any child restraint system on
this seat .
-Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion .
-Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats). These may influence the electrical
capacitance measured by the capacitive pas­
senger detection system and can also fly
around in an accident and cause serious per­
sonal injury .
-Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used
r=> page 187, Safety belts,
¢ page 194, Airbag system and
¢ page 216, Important information.
222
Convertible child safety seats
Properly used convertible child safety seats con
help protect toddlers and children over age one
who weigh between 20 and 40 lbs (9 and 18 kg)
in a crash .
.... a,
Fig. 170 Schem atic ov erview: ins tallation of t he se at us ing
the vehi cle's safety belt system
""When using the vehicle safety belt to install a
child safety seat, you must first activate the
convertible locking retractor on the safety belt
to prevent the child safety seat from moving
r=>page225.
"" Push the child safety seat down with your full
weight to get the safety belt really tight so that
the seat cannot move forward or sideways
more than 1 in (2.S
cm) ¢ page 225.
A toddler or child is usually too large for an in·
fant restraint if it is more than one year old and
weighs more than 20 lbs (9 kg).
Toddlers and children who are older than one
year up to about 4 years old and weigh more than
20 lbs (9 kg) up to 40 lbs (18 kg) must always be
properly restrained in a child safety seat certified
for their size and weight and
r=> fig. 170 .
A WARNING
Not using a child safety seat, using the wrong
child safety seat or improperly installing a
child restraint increases the risk of serious
personal injury and death in a collision or oth­
er emergency situation.
- Children on the front seat of any car, even
with Advanced Airbags, can be seriously in­
jured or even killed when an airbag inflates.
A child in a rearward-facing child safety seat
installed on the front passenger seat will be
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seriously injured and can be killed if the
front airbag inflates
-even with an Ad­
vanced Airbag System.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child against the backrest, center arm rest, door
or roof.
- Never install a rearward facing child safety
seat on the front passenger seat unless the
PASSENGER AIR BAG OFF~; light comes
on and stays on. If the
PASSENGER AIR
BAG OFF
~ ; light does not come on and stay
on have the airbag system inspected imme­
diately by your Audi dealer.
- The rear side of the child safety seat should
be positioned as close as possible to the
backrest on the vehicle seat.
- Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used ¢
page 187, Safety belts,
¢ page 194, Airbag system and
c> page 216, Important information.
A WARNING
If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and
well-being require that the following special precautions be taken:
- Make sure the forward -facing seat has been
designed and certified by its manufacturer
for use on a front seat with a passenger
front and side airbag .
- Always follow the manufacturer's instruc­
tions provided with the child safety seat or
infant carrier.
- Always move the front passenger seat into
the rearmost position of the passenger
seat's fore and aft adjustment range, and as
far away from the airbag as possible before
installing the child restraint.
- Always make sure that nothing prevents the
front passenger's seat from being moved to
the rearmost position in its fore and aft ad­
justment range.
Child safety
- Always make sure the backrest is in an up­
right position .
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device , power inverter or seat heater
for child seats) on the front passenger seat if the device is connected to the 12-volt
socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games device ,
power inverter or seat heater for child
seats). These may influence the electrical
capacitance measured by the capacitive pas­
senger detection system and can also fly
around in an accident and cause serious per­
sonal injury.
- Make sure that the
PASSENGER AIR BAG
OFF
'1; light comes on and stays on all the
time whenever the ignition is switched on.
- If the
PASSENGER AIR BAG OFF '1; light
does not come on and stay on have the air­
bag system inspected by your authorized
Audi dealer .
Booster seats and safety belts
Properly used booster seats con help protect
children weighing between abou t 40 lbs and
80 lbs (18 kg and 36 kg) who are less than 4 ft
9
in (5 7 in/1.45 m) tall .
Fig. 171 Passenger sea t: child properly restrained in a
booste r se at
223