2016 AUDI A8 warning light

Safe ty belts
locks the belt when the belt is pu lled out fast,
during hard braking and in an accident. The belt
may a lso lock when you drive up or down a steep
h ill or through a sharp curve. Dur ing normal driv­
ing the belt lets you move freely.
Safety belt p reten sion ers
The safety belts are equipped with a belt preten­
sioner that helps to tighten the safety belt and
remove slack when the pretensioner is activated
c> page 144. The function of the pretensioner is
monitored by a warning light
c::> page 18.
Con vertibl e loc king r etracto r
Every safety belt except the one on the driver
seat is equipped with a convertible locking retrac­
tor that
must be used when the safety belt is
used to attach a child seat. Be sure to read the
important information about this feature
c>page 177.
_&. WARNING
Improperly pos it ioned safety be lts can cause
ser ious injury in an accident
c::> page 142,
Safety belt position.
- Safety belts offer optimum protection only
when the seatback is upright and belts are
prope rly positioned on the body.
- Never a ttach the safety belt to the buck le
for ano ther seat. Attaching the belt to the
wrong b uck le wi ll reduce safe ty belt effec­
t iveness and can cause ser ious persona l in­
jury.
- A passenger who is not p roper ly restrained
can be seriously injured by the safety be lt it­
self when it moves from the stronger parts
of the body into critical areas like the abdo­
men.
- Always lock the convert ible lock ing retractor
when you are securing a child seat in the ve­
hicle
c::> page 179.
@ Tips
For information on safety be lt pretensioners,
refer to
c::> page 144.
142
Safety belt position
Correct belt position is the key to getting maxi­
mum protection from safety belts .
Fig. 160 Safety belt position
Use the height adjustment to change the positio n
of the shoulder belt of the front safety belts.
_&. WARNING
Improperly positioned safety belts can cause
serious personal injury in an accident.
- The shou lder belt should lie as close to the
center of the collar bone as possib le and
should fit well on the body. Hold the belt
above the latch tongue and pull it evenly
across the chest so that it s its as low as pos­
sible on the pe lvis and there is no p ressure
on the abdome n. T he belt sho uld a lways fit
snug ly
c::> fig. 160. Pu ll on the bel t to tigh ten
if necess ary.
- A loose-fit ting safety belt can ca use serious
in ju ries by s hifting its posi tion on yo ur body
from the strong bones to mo re v ulnerab le,
so ft tissue and cause serious in jury.
- Always read and heed all WARNINGS an d
other impor tan t information
c::> page 140 .

Airbag syste m
seat. It can be a very dangerous place fo r an
infant or a child in a rearward -facing seat.
The Advanced Airbag System i n your veh icle has
been ce rt ified to comp ly with the requirements
of United States Federa l Motor Vehicle Safety
Standard ( FMVSS)
208, as well as Canada Motor
Veh icle Safety Standard (CMVSS)
208 as applica ­
b le at the time your vehicle was manufactured.
According to requirements, the front Advanced
Airbag System on the passenger s ide has been
certified for "suppression " for infants of about
12 month old and younger and for "low risk de­
p loyment " for children aged
3 to 6 years o ld (as
defined in the standard).
The
PA SSENGER AIR BAG OFF light in the instru­
ment panel tells you when the front Advanced
Ai rbag on the passenger side has been tu rned off
by the ele ct roni c con trol unit.
Each t ime you sw itch on the ign it ion, the
PAS­
SENGER AIR BAG OFF
li ght will come on fo r a
few seconds and:
- will stay on if the front passenger seat is not
occupied,
- will stay on if there is a small c hild or child re­
straint on the front passenger seat,
- will go off if the front passenger seat is occu­
pied by an adult as reg istered by the weight ­
sensing mat¢
page 156, Monitoring the Ad­
vanced Airbag System .
The PASSENGER AIR BAG OFF light comes on
when the control unit detects a tota l we ight on
the front passenger seat that requires the front
a ir bag to be turned off.
If the tota l weight on the front passenger seat is
more than that of a typical 1 year -old child but
less than the we ight of a small adult, the front
a ir bag on the passenger side can deploy (the
PASSENGER AIR BAG OFF ligh t does not come
on) .
If the PASSENGER AIR BAG OFF light does
not come on, the front a irbag on the passenger
side has not been turned
off by the electronic
control unit and can deploy if the control unit
senses an impact that meets the condit ions stor ­
ed in its memory.
For e xample, the airbag may deploy if:
148
- a small ch ild that is heav ier than a typica l 1
year-o ld child is on the front passenger seat
(regard less of whether the child is in one of the
child seats listed ¢
page 170), or
- a child who has outgrown c hild restraints is on
the front passenger seat.
If the front passenger a irbag is t urned
off, the
PASSENGER AIR BAG OFF light comes on in the
i nstrument cluster and stays on.
The fro nt airbag on the passenge r side m ay
not
deploy (the PASSENGER AIR BAG OFF light does
not ill uminate and stay lit) even if a small adu lt
or teenager, or a passenger who is not sitting up­
right with their back against a non-recl ined back­
rest with the ir fee t on the vehicle floor in front of
the sea t is on the front passenger seat
<=> page 130, Proper seating position for the driv ­
er .
If the front passenger a irbag deploys, the Feder­
al Standard requires the airbag to meet the "low
risk" deployment cr iteria to reduce the r isk of in ­
j ury th rough interaction w ith the airbag . "low
risk" deployment occurs in th ose crashes that
take place at lowe r decele rations as defi ned in
the e lec tronic co ntro l unit
¢ page 156, PASSEN­
GER AIR BAG O FF light.
Always remembe r, a ch ild seat or i nfant ca rr ie r
i nsta lled on the fron t seat may be s truck a nd
k nocked o ut of pos it ion by the rapid ly inflat ing
passenger 's airbag in a frontal co llision . The air­
bag cou ld great ly reduce the effectiveness of the
c hi ld rest raint and even seriously injure the child
during in flat ion.
Fo r th is reason, and beca use the back seat is the
safest place for children - when proper ly restrain ­
ed according to their age and size -we strongly
recommend that children always sit in the back
seat
c> page 168, Child safety .
A WARNING
A child in a rearward-facing child seat instal­
led on the front passenger seat will be seri­
ously injured and can be killed if the front air­
bag inflates - even with an Advanced Airbag
Sys tem.

-The inflating airbag will hit the child seat or
infant carrier with great force and will
smash the child seat and child against the backrest, center armrest, door or roof .
- Always install rear-facing child seats on the
rear seat.
- If you must install a rearward facing child
seat on the front passenger seat because of
exceptional circumstances and the
PASSEN­
GER AIR BAG OFF
light does not come on
and stay on, immediately install the rear­
facing child seat in a rear seating position
and have the airbag system inspected by
your Audi dealer.
- Forward-facing child seats installed on the
front passenger's seat may interfere with
the deployment of the airbag and cause se­ rious personal injury to the child.
,&. WARNING ,..__ -
If, in exceptional circumstances, you must in­
stall a forward-facing child restraint on the
front passenger's seat :
- Always make sure the forward -facing seat
has been designed and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Never put the forward-facing child restraint
up against or very near the instrument pan­
el.
-Always move the passenger seat into its
rearmost position in the seat's fore and aft
adjustment range, as far away from the air ­
bag as possible before installing the for­
ward-facing child restraint. The backrest must be adjusted to an upright position.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the time
whenever the ignition is switched on.
,&. WARNING
To reduce the risk of serious injury, make sure
that the
PASSENGER AIR BAG OFF light will
be displayed whenever a child restraint is in­
stalled on the front passenger seat and the
ignition is switched on.
Airbag system
-If the PASSENGER AIR BAG OFF light does
not stay on, perform the checks described
¢ page 156, Monitoring the Advanced Air­
bag System .
-Take the child restraint off the front passen­
ger seat and install it properly at one of the
rear seat positions if the
PASSENGER AIR
BAG OFF
light does not stay on.
- Have the airbag system inspected by your
Audi dealer immediately.
- Always carefully follow instructions from
child restraint manufacturers when instal ­
ling child restraints .
,&. WARNING
-If, in exceptional circumstances, you must in-
stall a forward or rearward-facing child re­
straint on the front passenger's seat:
- Improper installation of child restraints can
reduce their effectiveness or even prevent
them from providing any protection.
-An improperly installed child restraint can
interfere with the airbag as it deploys and
seriously injure or even kill the child -even
with an Advanced Airbag System.
- Always carefully follow the manufacturer's
instructions provided with the child seat or
carrier.
- Never place additional items on the seat
that can increase the total weight registered
by the weight-sensing mat and can cause in­
jury in a crash.
149

Airbag syste m
-a small adu lt or teenager is on the front pas ­
senger seat
- a passenger who is not sitting upright with
their back against a non -reclined backrest with
their feet on the vehicle floor in front of the
seat is on the front passenger seat.
I f the front passenger airbag dep loys, the Feder ­
al Standard requires the airbag to meet the "low
risk" deployment criteria to help reduce the risk
of injury through interaction with the airbag.
"Low risk" deployment occurs in those crashes
that take place at lower decelerations as def ined
in the electronic control unit¢
page 156.
Alway s remember: Even though your vehicle is
equ ipped w ith Advanced Airbags, the safest place
for children is properly restrained on the back
seat . Please be sure to read the important infor­
mat ion in the sections that follow and be sure to
heed a ll of the WARN INGS.
A WARNING
To red uce the risk of inj ury when an ai rbag in­
fla tes, a lways wear safety bel ts p roperly.
- If you are unrestrained, leaning fo rwa rd, s it­
t ing s ideways or o ut of pos ition in any way,
yo ur risk of in jury is much h igher .
- Yo u will also re ceive serious injur ies and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates -
even with an Advanced Airbag ¢
page 146.
A WARNING
A child in a rearward-facing chi ld seat insta l­
led on the front passenger seat will be seri­
ously injured and can be k illed if the front air­
bag inflates -even with an Advanced Airbag
System.
- Although the Advanced A irbag System in
your vehicle is designed to turn off the front
airbag when a rearward-facing child re­
straint has been installed on the front pas­
senger seat, nobody can absolutely g uaran­
tee that deployment is impossible in all con­
ceivable s ituations that may happen during
the usef ul life of your vehicle .
- The inflating a irbag w il l hit the child seat or
infant carrier w ith great force and will
152
-
smash the child seat and child against the backrest, center armrest, door, or roof.
- Always install rearward-facing child re ­
straints on the rear seat.
- If you must install a rearward facing child
seat on the front passenge r seat because of
except ional circumstances and the
PASSEN­
GER AIR BAG OFF
light does not come on
and stay on, immed iate ly install the rear­
facing chi ld seat in a rear seating posit ion
and have the airbag system inspected by
your Aud i dea le r.
A WARNING
If, in exceptional ci rcums tances, you must in­
stall a forward-facing child restraint on the
fron t passenger's seat:
- Always make sure the forward-fa cing sea t
has been des igned and certified by its man­
ufacturer for use on a front seat with a pas ­
senger front and side airbag.
- Never put the forwa rd-facing child restrain t
up against or very near the instr ument pan ­
el.
-Always move the passenge r seat into its
rearmost position in the seat's fo re and aft
adjustment range, as far away from the air­ bag as poss ible, before install ing the for­
ward-facing chi ld restraint. The backrest
must be adjusted to an upr ight position.
- Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the time
whenever the ign it ion is switched on.
Advanced Airbag System components
The front passenger seat in your veh icle has a lot
of very important parts of the Advanced A irbag
System i n it. These parts incl ude t he weight­
sens ing mat, senso rs, wir ing, bracke ts, and
more. The funct ion of the sys tem in the front
passenger seat is checked by the electronic con ­
tro l unit when the ignition is on . The control unit
monitors the Advanced Airbag System and turns
the airbag ind icator light on when a malfunction
i n the system components is detected. The func­
tion of the ai rbag ind icator light is described in
greater deta il be low. Because the front .,.

passenger seat contains important parts of the
Advanced Airbag System, you must take care to prevent it from being damaged . Damage to the
seat may prevent the Advanced A irbag for the
front passenger seat from doing its job in a
crash.
The f ront Ad vanced Airb ag Sy stem con sist s
of the follo wing :
-Crash sensors in the front of the vehicle that
measure vehicle accelerat ion/decelerat io n to
provide information to the Advanced Airbag
System about the severity of the crash .
- An electronic control un it, with integrated
crash sensors for front and side impacts . The
contro l unit "decides" whethe r to fire the front
airbags based on the information received from
the crash sensors. The control unit also "de ­
cides" whether the safety be lt pretensioners
sho uld be activated.
- An Advanced Airbag with gas generator and
contro l valve for the driver inside the steering
whee l hub .
- An Advanced Airbag with gas generator and
contro l valve inside the instrument pane l for
the front passenger.
- A weight -sensing mat under t he upho lstery
padding of the front passenger seat cushion
that measures the total weight on the seat . The
information registered is sent continuously to
the e lectron ic control unit to regulate deploy­
ment of the front Adva need A irbag on the pas ­
senger side.
- An airbag monitoring system and indicator
light i n the instrument cluster
¢ page 156.
-A sensor in each front seat registers the dis­
tance between the respective seat and the
steering wheel or instrument panel. The infor­
mation reg istered is sent cont inuous ly to the
electronic control unit to regulate deployment
of the fro nt Adv a need A irbags.
- T he
PASS EN GE R AIR BAG OFF light comes on
and stays on in the center of the instrument
pane l
¢page 156, fig . 166 and tells you when
the fron t Advanced Airbag on the passenge r
side has been turned off.
- A se nsor below the safety bel t lat ch fo r th e
front seat passenger to meas ure the tens ion on
Airb ag sys tem
the sa fety belt. The tension on the safety belt
and the weight registered by the weight-sens­
ing mat help the contro l unit "decide" whether
the front airbag for the front passenger seat should be turned off or not¢
page 147, Child
restraints
on the front seat -some important
things to know.
- A sensor in the safety belt latch for the driver
and for the front seat passenger that senses
whether that safety belt is latched o r not and
t ransmits this information to t he electronic
cont rol un it.
_& WARNING
D amage to the front passenge r seat can pre­
vent the front airbag from working properly.
- Imp roper repair or disassembly of the fro nt
passenger and driver seat will p revent the
Advanced Airbag System from f unctioning
p roperly.
- Repairs to the front passenger seat must be
performed by qualified and p roperly trained
workshop personne l.
- Never remove the front passenge r or driver
seat from the vehicle.
- Never remove the upholstery from the front
passenger seat.
- Never disassemble o r remove par ts from the
seat o r disconnect w ires from it.
- Never carry sh arp objects in your pocke ts or
p lace them on the seat. If the weight-sens­
ing mat in the passenger seat is punctu red
it cannot work proper ly.
- Never carry things on your lap or carry ob­
jects on the passenge r seat. S uch items can
increase the weight reg istered by the
weight-sensing mat and send the wrong in­
formation to the a irbag control unit.
- Never store items under the front passenger
seat. Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged, p reventing them and the airbag sys­
tem from working p roper ly.
- Never p lace seat covers or replacement up­
holstery that have not been specifically ap­
p roved by A udi on the front seats.
- Seat covers can prevent the Advanced A ir­
bag System from recognizing chi ld
153

Airbag syste m
restraints or occupants on the front passen­
ger seat and prevent the side airbag in the
seat backrest from deploying properly.
- Never use cushions, pillows, blankets or
similar items on the front passenger seat.
The additional padding will prevent the
weight-sens ing mat in the seat from accu­
rately reg istering the ch ild restraint or per­
son on the seat and prevent the Advanced
Airbag System from funct ioning prope rly.
- If you must use a child restraint on the front
passenge r seat and the child restraint man­
ufact urer's instructions require the use of a
towel, foam cushion or something else to properly position the chi ld restraint, make
certain that the
PASSENGER AIR BAG O FF
light comes on and stays on whenever the
child restraint is installed on the front pas­
senger seat.
- If the
PASSENGER AIR BAG O FF light does
not come on and stay on, immediately in­
stall child restrai nt in a rear seating position
and have the airbag system inspected by
you r Audi dealer.
How the Advanced Airbag System
components work together
The front Advanced Airbag System and the side
ai rbags supplement the protection offered by the
front three-point safety belts with pretensioners and load limiters and the adjustable head re ­
stra ints to help reduce the r isk of injury in a wide
range of accident and crash situations. Be sure to
read the important information about safety and heed the WARNINGS in th is chapter .
Deployment of the Advanced Airbag System and
the activation of the safety belt pretensioners de­ pend on the deceleration measured by the crash
sensors and registered by the electronic control
unit . Crash severity depends on speed and decel­
era tion as we ll as the mass and stiffness of the
vehicle or object invo lved in the crash.
On the passenger s ide, regardless of safety belt
use, the a irbag will be t urned off if the weight on
the passenge r seat is less than the amount p ro­
g rammed in the e lectron ic cont rol unit . T he front
154
airbag on the passenger side will also be turned
off if one of the chi ld seats that has been certi­
fied under Federal Motor Vehicle Safety Standard 208 has been recognized on the seat. The
PA S­
S EN GER AIR BA G OFF
light comes on and stays
on to tell you when the front Advanced A irbag on
the passenger side has been turned off
¢ page 147, Child restraints on the front seat ­
some important things to know .
.&_ WARNING
To reduce the risk of injury when an airbag in­
f lates, always wear safety belts properly.
- I f you are unrestrained, leaning forward, sit­
ting sideways or ou t of position in any way,
your ris k of injury is much highe r.
- You will a lso receive ser ious injuries and
could even be killed if yo u are up against the
airbag or too close to i t when it inflates -
even with an Advanced Airbag
r::!;>page 146.
More important things to know about front
airbags
Fig. 165 Inflated front a irbags
-,... N 0 :i: ;;i;
Safety be lts are important to help keep front
seat occupants in the proper seated position so
that airbags can unfo ld properly and prov ide sup­
plemental protection in a fronta l co llision.
The front airbags a re designed to provide addi­
tional protection for the chest and face of the driver and the front seat passenger when:
- safety belts are worn properly,
- t he seats have been positioned so that t he oc-
cupant is properly seated as far as possib le
from the airbag,
Ill-

-and the head restraints have been properly ad -
justed.
Because airbags inflate in the blink of a n eye w ith
great for ce, things you have on you r lap or have
p laced on the seat cou ld become dangerous pro ­
jectiles, and be pushed into you if the airbag in ­
flates.
When an a irbag deploys, fine dust is released .
This is normal and is not caused by a fire in the
vehicle. This dust is made up mostly of a powder
used to lubricate the airbags as they deploy. It
could irr itate skin.
It is important to remember that while the sup­
p lemental airbag system is designed to reduce
the likelihood of ser ious injuries, other inj uries,
for example swell ing, bruising and minor abra­
sions, can also happen when airbags inflate. Air­
bags do not protect the arms or the lower parts
of the body . Front airbags supplement the three­
point safety belts only in some frontal collisions
i n which the veh icle decelerat ion is high enough
to deploy the airbags.
F ront airbags will not deploy:
- if the ignit ion is switched off when a crash oc -
curs,
- in s ide collisions,
- in rear-end collisions,
- in rollovers,
- when the crash decelerat ion measured by the
airbag system is less than the minimum thresh­
o ld needed for airbag deployment as registered
by the electronic contro l unit .
Th e front passeng er airbag also will not
deplo y:
- when the front passenger seat is not occupied,
- when the weight on the front passenger seat as
sensed by the Advanced Airbag System indi­
cates that the front airbag on the passenger
s ide has to be turned off by the electronic con­
trol unit (the
P A SSENGER AIR B AG OFF light
comes on and stays on).
A WARNING
Sitting in the wrong pos ition can increase the
r isk of se rious injury in c rashes.
Airb ag sys tem
-To reduce the risk of injury when the ai rbags
inflate, the driver and passengers must al­
ways sit in an upright posit ion, must not
lean aga inst or place any part of their body
too close to the area where the airbags are located.
- Occupants who are unbelted, out of posit ion
or too close to the airbag can be seriously in jur ed by an airbag as it unfolds with g reat
for ce in the blink of an eye
Q page 147.
A WARNING
A child in a rearward-facing child seat instal­
l ed on the front passenger seat will be se ri­
ously injured and can be killed if the front air ­
bag inflates - even with an Advanced Airbag
System .
- The inflating airbag will hit the child seat or infant carrier with great force and will
smash the child seat and child against the backrest, center armrest, door or roof.
- Always install rear-fac ing child seats on the
rear seat.
- If you must install a rea rward facing child
seat on the front passenger seat because of
except ional circumstances and the
PASSEN­
GER AIR BAG OFF
light does not come on
and stay on, immed iate ly install the rear­
faci ng chi ld seat in a rear seating posit ion
and have the airbag system inspected by
your Aud i dea le r.
A WARNING
-
-
Objects between yo u and the airbag will in­
crease the risk of injury in a crash by interfer­ i ng with the way the airbag unfolds or by be­
ing pushed into you as the airbag inflates .
- Never hold things in yo ur hands or on your
lap when the veh icle is in use .
- Never transport items on or in the a rea of
the front passenger seat . Obje cts could
move into the a rea of the front airbags dur­
ing b raking or other s udden maneuvers and
become dangerous projectiles that can
cause serious persona l injury if the airbags
inflate.
155

Airbag syste m
-Never place or attach accessories or other
objects (such as cup ho lders, te lephone
brackets, large, heavy or bulky objects) on
the doors, over or near the area marked "AIRBAG" on the steering wheel, instru­
ment pane l, seat backrests or between
those areas and yourself. These objects
could cause injury in a crash, especially
when the airbags inflate.
- Never recline the front passenger's seat to
transport objec ts. Items can also move into
the area of the side airbag or the front a ir­
bag dur ing braking or in a sudden maneu­
ver. Objects near the airbags can become projectiles and cause injury, particularly
when the seat is reclined.
A WARNING
The fine dust created when airbags deploy can
cause breath ing problems for people w ith a
history of asthma or other breathing condi­
t ions.
- To reduce the risk of breathing problems,
those w ith asthma or other respiratory con­
ditions should get fresh air right away by
gett ing out of the vehicle o r opening w in­
dows o r doors.
- If you are in a collision in which airbags de­
ploy, wash your hands and fa ce with mild
soap and water befo re eat ing.
- Be careful not to get the dust into your eyes,
o r into any cu ts or sc ratches.
- If the resid ue should get into yo ur eyes,
flush them with water.
Monitoring the
Advanced Airbag System
~i (USA models)/!f (Canada models)
Airbag monitoring indicator light
Two separate indicators monitor the function of
the Advanced Airbag System: the airbag moni­
toring indicator light and the
PASSENGER AIR
BAG OFF
light.
The Advanced Airbag System (including the elec­
tron ic co ntrol unit, senso r ci rcui ts and system
w iri ng) is monitored con tinuously to make su re
156
that it is functioning properly whenever the igni­
tion is on. Each time you switch on the ignition,
the airbag mon itor ing indicator light
rl (U SA
models)/ E,I (Canada models) will come on for a
few seconds (se lf diagnostics) .
The system mu st be inspected wh en th e
indicat or light
II (USA models) /m (Canada
models ):
- does not come on when the ignition is sw itched
on,
- does not go out a few seconds after you have
sw itched on the ignit ion, or
- comes on while driving.
If an airbag system malfunction is detected, the
indicator light will first start flashing to catch the
driver's attention and then stay on continuously
to serve as a constant reminder to have the sys­
tem inspected immediately .
If a malfunction occurs that turns the front air­
bag on the passenger side off, the
PASSENGER
AIR BAG OFF
light will come on and stay on
whenever the ignition is on .
A WARNING
An airbag system that is not functioning prop­
e rly cannot provide supplemental protectio n
i n a fronta l crash.
- If the ai rbag ind icator light
Q page 18
comes when the veh icle is being used, have
t he system inspected immedia tely by your
author ized Audi dealer . It is possi ble that
the airbag will inflate when it is not sup ­
posed to, or will not inflate when it should .
PASSENGER AIR BAG OFF light
Fig. 16 6 Sect ion from the instrument panel: PASSENGER
AIR BAG O FF light .,,_