belt AUDI A5 COUPE 2011 Service Manual

..,. Airbag system
PAWi-- --=------------------------------
& WARNING
Changing th e vehicle 's su sp en sion including use of unappro ved
tire -rim c ombination s can change Advan ced Airbag performan ce
and increas e the risk of serious personal injury in a cra sh .
• Never install suspension component s that do not have the
same performance characteristics as the components or iginally
installed on your veh icle.
• Never u se tir e-rim combinations that have not been approved
b y Audi.
& WARNING
Item s stored b etween the safety belt buckl e and the center
console can cause the sensors in the buckle to send the wrong
information to the ele ctroni c control module and prevent the
Advanced Airbag System from w orking properl y.
• Always make sure that nothing can interfere with the safety
belt buckles and that they a re not obstru cted .
<£> For the sake of the environment
Undeployed airbag modu les and pretensioners might be class ified as
Perch lorate Mate rial -special handling may app ly, see
www.dtsc.ca.gov/hazardouswaste/pe rchlorate . When the vehicle or
p arts of t he rest raint sys tem including a irbag mod ules safe ty belts
w ith pretens ioners are scrapped, all applicable laws and regulat ions
must be observed. Your authorized Audi dealer is familiar with these
requ irements and we recommend that you have your dealer perform
this se rvice for yo u.•
Knee airbags
Applies to veh icles: w ith knee a irbags
Description of knee airbags
The airbag system can provide supplemental protection
to properly restrained front seat occupants.
....
! 00 m
Fig. 181 D riv er's kn ee
a ir ba g
The knee airbag for the driver is located in the instrume nt panel
unde rneath the steering whee l:::> fig. 181, the knee airbag for the
passenge r is at about the same he ight in the instrument panel u nder­
neath the g love compartment .
Th e knee airbag offers addit ional protec tion to the dr ive r's and
passenger's knees and upper and lower thigh areas as a supplement
t o the sa fety bel ts.
If the front a irbags dep loy, the knee airbags a lso deploy i n frontal
co llisions above a certain severity=>
page 199, "More importan t
things to know about front airbags" .
Besides the ir normal safety function, safety be lts work to help keep
t he drive r o r front passenger in po sit ion in c ase o f a frontal collision
so that the a irbags can provide protection .
Th e airbag system is not a substitute for your safety belt . Rather, it is
part of the overall occ upant restra int system in your veh icle . Always
remember t hat the airbag system can on ly help to protect you if you
~

are wearing your safety belt and wear ing it properly . This is why you
should always wear your safety belt, not just because the law requires
you to do so=>
page 181, "General notes".
The safety belt buckle for the driver and front seat passenger have
switches that tell the airbag control module if the safety belt is being
used or not. If the safety belt is being used, the knee airbag will
dep loy at a slightly higher rate of deceleration than if the belt is not
being used. Therefore, in a particular collision, it is poss ible that an
airbag will not deploy at a seating position where the safety belt is
being used but will inflate at the position whe re the safety be lt is not
being used.
Remember too, airbags w ill deploy only once and only in certa in kinds
of accidents -your safety belts are always there to offer protection in
t hose accidents in which airbags are not supposed to deploy or when
they have already deployed, for example when your vehicle strikes or
is struck by another after the first collision.
This is just one of the reasons why an airbag is not a substitute for the
safety belt. The airbag system wo rks most effective ly when used with
the safety belts. Therefore, always wear your safety belts correctly .
It is important to remember that while the supplemental airbag
system is desig ned to reduce the likelihood of serious injuries, other
injuries, for example, swe lling, bruis ing, and minor abrasions can
also be associated with airbags.
The knee airbag system basically consists of:
• Th e electronic control module
• T wo inflatable airbags (airbag and gas generator), one for the
driver and one for the front passenger
• The airbag indicator light in the instrument panel
The knee airbag system will not deploy:
• when the ignition is turned off
• in front-end collis ions when the decelerat ion measured by the
control unit is too low
• in s ide collisions
Safety first Vehicle OP-eration
Airbag system
• in rear-end collisions
• in rollovers
• in the event of a system ma lfunction (warning/indicator light illu­
minated)=>
page 16 .
& WARNING
• Safety belts and the airbag system can only provide protection
when occupants are in the proper seating position =>
page 199.
• If the airbag indicator light comes when the vehicle is being
used, have the system inspected immediately by your authorized
Audi dealer. The airbag may not work properly when the vehicle
acceleration in a side collision is high enough to deploy the airbag.
See also =>
page 16. •
A pp lies to vehi cles: w ith knee a irbags
How knee airbags work
The risk of injury to the leg area is reduced by fully
deployed knee airbags.
Fig . 182 Inflated
airbags protecting
in a
frontal collision
The knee air bag system has been designed so that the airbags for the
dr iver and front passenger are deployed in certa in but not all frontal
co llisions .
ti-
Vehicle care Do-it-yourselt service iTechnical data

........ _A_ ir_ b_ a-=g ,__ s,,.,y _s _t _e_ m _______________________________________________ _
If the front airbags deploy, the knee airbags also deploy in frontal
collisions above a certain severity.
When the system is deployed, the a irbags start to fill with a propel­
lant gas, and inflate between the lower part of the instrument panel
and the driver and the lower part of the instrument panel and the
front passenger =>
page 199, fig. 179.
Altho ugh 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 lower
extremities.
All this takes place instantaneously, so fast that many people don't
even realize that the airbags have deployed. The airbags also inflate
w ith a great deal of force and it is important fo r occupant safety that
nothing should be in their way when they deploy.
Fully inflated airbags in combination with properly worn safety belts
slow down and limit the occupant's forward movement and help to
red uce the risk.•
Appli es to ve hicl es: w it h kn ee a irbags
Important safety instructions on the knee
airbag system
Airbags are only supplemental restraints. Always wear
safety belts correctly and ride in a proper seating posi­
tion.
Th ere is a lot that yo u and your passengers must know and do to help
the safety belts and a irbags to prov ide supp lemental protection.
& WARNING
An inflating knee airbag can cause serious injury. Wearing safety
belts incorrectly and improper seating positions increase the risk
of serious personal injury and death whenever a vehicle is being
used.
& WARNING (continued)
• The airbag system cannot protect you properly if you are seated
too close to any of the airbag locations. When adjusting their seat
positions, it is important that both the driver and the front
passenger keep their upper bodies and knees at the following
minimum safe distances:
- 10 inches (25 cm) between the chest and the steering
wheel/instrument panel.
- 4 inches (10 cm) between the knees and the lower part of
the instrument panel.
• The risk of personal injury increases if you lean forward or to
the side, or if the seat is improperly positioned and you are not
wearing your safety belt. The risk increases even more should the
airbag deploy.
• Always make sure that the knee airbag can inflate without
interference. Objects between yourself and the airbag can increase
the risk of injury in an accident by interfering with the way the
airbag deploys or by being pushed into you as the airbag deploys .
- No persons (children) or animals should ride in the footwell
in front of the passenger seat. If the airbag deploys, this can
result in serious or fatal injuries.
- No objects of any kind should be carried in the footwell area
in front of the driver's or passenger's seat. Bulky objects (shop­
ping bags, for example) can hamper or prevent proper deploy­
ment of the airbag. Small objects can be thrown through the
vehicle if the airbag deploys and injure you or your passengers.
• Make sure there are no cracks, deep scratches or other damage
in the area of the instrument panel where the knee airbags are
located.
• If children are incorrectly seated, their risk of injury increases
in the case of an accident =>
page 215, "Child Safety". •

Side airbags
Description of side airbags
The airbag system can provide supplemental protection
to properly restrained occupants.
Fig. 183 Side airbag
location in the driver's
seat
The side airbags are located in the sides of the front seat backrests
=>
page 209, fig. 183. They are identified by the word "AIRBAG" .
The side airbag system basically consists of:
• the electronic control module and external side impact sensors
• the two side airbags located in the sides of the front backrests
• the airbag warning light in the instrument cluster.
The airbag system is monitored electronically to make certain that it
is functioning properly at all times. Each time you turn on the igni­
tion, the airbag 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 collision. The
airbag deploys only in side impacts and only when the vehicle acceler­
ation 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 triggered, even though the car may be badly
Safety first Vehicle OP-eration
Airbag system
damaged as a result of the collision. It is not possible to define an
airbag triggering range that will cover every possible angle of impact,
since the circumstances will vary considerably between one collision
and another. Important factors include, for example, the nature
(hard or soft) of the impacting object, the angle of impact, vehicle
speed, etc.
=> page 210, "Important safety instructions on the side
airbag system" .
Aside from their normal safety function, safety belts work to help keep the driver or front passenger 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 occupant restraint system in your vehicle. Always
remember that the side airbag system can only help to protect you if
you are wearing your safety belt and wearing it properly. This is
another reason why you should always wear your safety belts, not just
because the law requires you to do so=>
page 181, "General notes".
It is important to remember that while the supplemental side airbag
system is designed to reduce the likelihood of serious injuries, other
injuries, for example, swelling, bruising, and minor abrasions can
also be associated with deployed side airbags. Remember too, side
airbags will deploy only once and only in certain kinds of accidents -
your safety belts are always there to offer protection .
Vehicle damage, repair costs or even the lack of vehicle damage are
not necessarily an indication of over-sensitive or failed airbag activa­
tion. In some collisions, both front and side airbags may inflate.
Remember too, that airbags will deploy only once and only in certain
kinds of collisions -your safety belts are always there to offer protec­
tion in those accidents in which airbags are not supposed to deploy or
when they have already deployed.
The side airbag system will not deploy:
• when the ignition is turned off
• in side collisions when the acceleration measured by the sensor is
too low
• in front-end collisions
~
Vehicle care Do-it-yourselt service iTechnical data

........ _A_ i_rb _ a_,g,:;._ s_, y'- s_ t_e _m ________________________________________________ _
• in rea r-end collis ions
• in ro llover s.
I n so me ty pes of accid ents the fro nt a irbags, side c urtain airbags and
s id e airb ag s may be trigg ere d t ogethe r.
& WARNING
• Safety belts and the airbag system will only provide protection
when occupants are in the proper seating position~
page 210.
• If the airbag indicator light comes on when the vehicle is being
used, have the system inspected immediately by your authorized
Audi dealer. The airbag may not work properly when the vehicle
acceleration in a side collision is high enough to activate the
airbag. •
How supplemental side airbags work
Sid e air bags d eploy inst an tly and c an help r educ e th e risk
of upper t orso injuries for oc cupants wh o are pr operly
r e s trained .
Fig. 184 Inflated side
a irb ags on left side of
v ehicle
Whe n the system is triggered, t he airbag is filled with p ropellant gas
and breaks through a seam in the seat s urface area marked
"AIR BA G".
It ex pands be tween the side t rim pa nel and th e p assenge r.
In order to he lp prov ide this additiona l protection, the side airbag must inflate w
ith in a fract io n of a seco nd at very hig h speed and with
great f orce. Th e sup plem en tal si de air bag could in jure y ou if yo ur
sea ting position is not proper o r upr ight o r if items are located in the
area where the s uppleme nta l side a irbag ex pands. This a pplies espe ­
cially to ch ild ren~
page 215, "Child Safety". Supplementa l side
airbags inflate between the occupant and the doo r p anel on the side
of the vehi cle th at is s truck in cert ain side co ll ision~ fig. 184 .
Altho ugh t hey are not a soft pillow, they ca n "cush io n" the impact
an d in thi s w ay t hey can help to redu ce the ris k of injury to the upper
part of the body.
A fine d ust may deve lop when the airba g dep loys. This is no rma l and
do es not me an the re is a fire in the vehicle .•
Important safety instructions on the side
airbag system
Ai rbags are o nly s up ple m ent al re stra in ts. Alw ays prop­
e rly wear sa fe ty bel ts an d rid e in a proper seati ng posi­
ti on.
Th ere is a lot that you and yo ur passenge rs must know and act acco rd­
ing ly to he lp the s afety be lts a nd air bags do t he ir job to p rov ide
supplementa l protection.
& WARNING
An inflating side airbag can cause serious or fatal injury. Improp­
erly wearing safety belts and improper seating positions increase
the risk of serious personal injury and death whenever a vehicle is being used .
• In order to reduce the risk of injury when the supplemental
side airbag inflates:
-Alway s sit in an upright position and never lean against the
area where the supplemental side airbag is located . .,

______________________________________________ ___::A....:..:..: i r:...: b=.= a:.;g ~ s~y :.:s:.: t:.: e:.: m~ ---
& WARNING (continued)
-Never let a child or anyone else rest their head against the
side trim panel in the area where the supplemental side airbag
inflates.
- Always make sure that safety belts are worn correctly,
- Do not let anyone sitting in the front seat put their hand or
any other parts of their body out of the window.
• Always make sure that the side airbag can inflate without
interference.
- Never install seat covers or replacement upholstery over the front seat backs that have not been specifically approved by
Audi.
- Never use additional seat cushions that cover the areas
where the side airbags deploy.
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer.
• Objects between you and the airbag can increase the risk of
injury in an accident by interfering with the way the airbag unfolds
or by being pushed into you as the airbag inflates. -Never place or attach accessories or other objects (such as
cupholders, telephone brackets, or even large, bulky objects)
on the doors, over or near the area marked "AIRBAG" on the
seat backrests.
- Such objects and accessories can become dangerous projec­
tiles and cause injury when the supplemental side airbag deploys.
- Never carry any objects or pets in the deployment space
between them and the airbags or allow children or other
passengers to travel in this position.
• Always use the built-in coat hooks only for lightweight
clothing. Never leave any heavy or sharp-edged objects in the
Controls and equip­ ment Safety first Vehicle operation
& WARNING
(continued)
pockets that may interfere with side airbag deployment and can
cause personal injury in an accident.
• Always prevent the side airbags from being damaged by heavy
objects knocking against or hitting the sides of the seatbacks.
• The airbag system can only be triggered once. If the airbag has
been triggered, the system must be replaced by an authorized
Audi dealership.
• Damage (cracks, deep scratches etc.) to the original seat covers
or to the seam in the area of the side airbag module must always
be repaired immediately by an authorized Audi dealer.
• If children are seated improperly, their risk of injury increases
in the case of an accident=>
page 215, "Child Safety".
• Never attempt to modify any components of the airbag system
in any way.
• In a side collision, side airbags will not function properly if
sensors cannot correctly measure increasing air pressure inside
the doors when air escapes through larger, unclosed openings in
the door panel.
- Never drive with interior door trim panels removed.
-Never drive when parts have been removed from the inside
door panel and the openings they leave have not been properly
closed.
- Never drive when loudspeakers in the doors have been removed unless the speaker holes have been properly closed.
- Always make certain that openings are covered or filled if
additional speakers or other equipment is installed in the
inside door panels.
- Always have work on the doors done by an authorized Audi
dealer or qualified workshop. •
Vehicle care Do-it-yourself service Technical data

-Airbag system -
--=---=----------------
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide supplemental
protection to properly restrained occupants .
Fig . 18 5 Side c urta in
sys tem, drive r's side:
s ide cu rtain ai rba g
loc atio n
The side curtain airbags are located on both sides of the interio r
above the front and rear side windows=> fig. 185. They are identified
by t he word "AIRBAG" on the w indshield frame and t he center roof
pillar.
T he side curta in airbag system s upplements t he safety belts and can
help to reduce the risk of inju ry for occupa nts' heads a nd upper torso
on t he side of the vehicle th at is struck i n a sid e collision . The s ide
cu rtain airbag inflates i n side im pacts and o nly when the vehicle
acceleration reg istered by the contro l unit is high enoug h. If this rate
is below the reference va lue programmed into the cont rol unit, the
side airbags wi ll not be triggere d, even though t he car may be bad ly
damaged as a resul t of the co llis ion .
It is not possib le to define an
airbag triggering range that w ill cover every possible angle of impact,
s in ce the circumstance s will vary conside rably between one colli sion
and another. Important factors include, for example, the nature
(h ard o r soft) of t he impa cti ng obje ct, t he a ngle of impa ct, vehicle
speed, etc.=>
page 213, "H ow side curta in airbags work" . Aside from the
ir normal safety fu nction, safety belts work to he lp
keep the driver or fron t passen ger in posit io n in t he even t of a co lli­
sion so that the s ide cu rta in a irbags can provide protection .
T he airbag system is not a substitute for your safety belt . Rathe r, it is
pa rt of the ove rall oc cupant rest ra int system in your veh icle. Alway s
remember that the airbag system can on ly help to protect you if yo u
a re wear ing you r safety be lt and we aring it p ro perly. Thi s is anothe r
reason why you s hou ld always wear your safety be lts, not just because
t he law requi res you to do so=>
page 181, "Gene ral no tes" .
It is important to remember that while the s ide curta in airbag system
is designed to he lp reduce the like lihood of ser io us injur ies, other
in ju ries, fo r example, swe lling, br uis ing, and minor abras ions can
also be assoc iate d with these airbags. Remember too, these a irbags
w ill deploy on ly on ce a nd on ly in ce rtain kinds of acci den ts -yo ur
safety belts are always there to offer p rotect ion .
The side curtain airbag system basically consists of:
• T he electron ic control mo dule and e xternal side impact sensors
• The sid e curtain airbags above the front and rea r side windows
• Th e air bag indic ator ligh t in the ins tru men t panel
T he a irbag system is mo nitored e lectro nica lly to make certain it is
functioning prope rly at a ll times . Each time you turn on t he ignitio n,
t he a irbag system indica to r light w ill come on for a few secon ds (self
diagnostics) .
The side curtain airbag is not activated:
• if the ignition is turned of f,
• in side co llisions when the accelerat io n measured by the sensor is
t oo low,
• in rear-end co llisions ,
• in rollovers. _,.

Airbag system Ill
----------------=--=---
& WARNING
• Safety belts and the airbag system will only prov ide protection
when oc cupants are in the proper seating position =>
page 73,
"General recommendations ".
• If the airbag indicator light comes on when the vehicle i s being
used , have the system inspected immediately by your authorized
Audi dealer. The side curtain airbag may not work properly even
when the vehicle a cceleration in a side collision is high enough to
activate the airbag. •
How side curtain airbags work
Side curtain ai rbags can work together with side airbags
to h elp reduce the risk of head and upper torso injuri es for
occupants who are properly restrained.
..
Fig . 1 8 6 Illu st ra tion
o f princi ple: Inflated
side curtain airb ag s on
the left s ide
Th e side curtai n airbags inflate between the occup an t and t he
windows on the side of t he veh icle tha t is struck in a side coll is ion
=> fig . 18 6.
When the system is tr iggered, the side curta in a irbag is filled with
prope llant gas and breaks t hrough a seam above the front an d rear
side w indows identifie d by t he A IRBA G labe l. In o rder to he lp p rov ide
this additional protection, t he s ide c urtain airbag must inflate within
t he blink of an eye at ve ry high speed and with gre at f orce. The side
Controls and equip­
ment Safety first Vehicle operation
curtain a
irbag co uld in jure you if your seating posit io n is not proper or
upr ight or if items are lo cated in the area where the s uppleme ntal
side cu rtain airbag i nflates. T his app lies especially to c hildren
=> page 215.
Alt hough they a re not a sof t pill ow, side curta in airbags c an "cushion"
the impact and in this way they can help to reduce the risk of injury to
t he head and t he uppe r part o f th e bo dy.
A fine d ust may develop when the airbag deploys . Th is is quite norma l
and does not mean there is a fire in the vehicle .•
Important safety instructions on the side
curtain airbag system
A irbags ar e only supp lemental r estraints. Always prop ­
e rly wear s afe ty b elts and ride in a proper seating posi­
tio n.
T he re is a lot that yo u and your passenge rs must k now and do to help
the safety belts and airba gs do their job to provide supplemental
protection .
& WARNING
Improperly wearing safety belts and improper seating pos itions
increa se the risk of serious personal injury and death whenever a
vehicle is being used.
• Never let oc cupants place any parts of their bodie s in the area
from which the side curtain airbags inflate.
• Always make sure that the side curtain airbags can inflate
without interference . Unsuitable accessories fitted inside the
expansion range of a head airbag can dangerously interfere with
its function. A deploying head airbag develops enough force to
catapult any piece of add-on component out of its path of inflation
and into the passenger compartment. An occupant hit by such a .,
Vehicle care Do-it-yourself service Technical data

........ _A_ i_rb _ a_,g,:;._ s_, y'- s_ t_e _m ________________________________________________ _
& WARNING (continued)
projectile can suffer serious injury or death ~ page 343 , "Tech­
nical Modifications".
• Do not swivel the sun visors to the side if you have any objects
clipped onto them (for example pens). If the airbag should
deploy, you could be injured by these objects .
• Use the built-in coat hooks only for lightweight clothing . Never
leave any heavy or sharp-edged objects in the pockets that may
interfere with airbag deployment and can cause personal injury in
an accident.
• Never use hangers to hang clothing from the hooks.
• Only use factory-installed sun shades or, in the case of shades installed after the vehicle leaves the factory, only Audi roll-up
sunscreens may be used~
page 342, "Additional accessories and
parts replacement".
• Always sit in proper seating position and wear safety belts
while traveling so that the side curtain airbags can help provide
protection.
• The airbag system can only be triggered once. If the airbag has
been triggered, the system must be replaced by an authorized
Audi dealer or qualified workshop .
• Always have work involving the side curtain airbag system,
removal and installation of the airbag components, or other
repairs performed by an authorized Audi dealer or qualified work­
shop . Otherwise the airbag system may not work correctly.
• Never attempt to modify any components of the airbag system
in anyway. •

-Child Safety _____ ____;_..:::.:!.----------------------------
& WA RNING (conti nued)
• Alway s in stall rearwa rd-facing child safety seats on the rear
seat.
• If you must install a rearward facing child safety seat on the
front passenger seat in exceptional circumstance s and the
PASSENGER AIR BAG OFF light does not come on and stay on ,
immed iately install the rearward-facing child safety seat in a rear
seating position and have the airbag system inspected immedi ­
ately by your authorized Audi dealer .
& WARNING
If, in exceptional circumstances, you must install a forward-facing
child res traint on the front pas senger's seat:
• Always make sure the forward-facing seat has been designed
and certified by it s manufacturer for use on a front seat with a
passenger front and side airbag.
• Always follow the manufacturer 's instruction s provided with
the child safety seat or carrier.
• Always move the passenger seat into it s rearmost position in
the seat 's fore and aft adjustment range, as far away from the
airbag as possible before installing the child restraint. The back­ rest must be adjusted to an upright position.
• Always make sure that the PASSENGER AIR BAG OFF light
comes on and stays on all the time whenever the ignition is
switched on .•
Advanced front airbag system and children
Your vehicle is equi pped wi th a fron t "Advanced Airbag System" in
compliance with United States Federal Motor Vehicle Safety Standard
( F MVSS) 2 08 as appli ca ble at t he time your ve hicle was manufa c­
tured. The Advanced A
irbag system in yo ur vehicle has been certif ied to
mee t the "low -r is k" requiremen ts fo r 3-and 6-ye ar old ch ildre n on
t he passenger side and small adults on the dr iver side . The low risk
dep loyment criteria are inten ded to reduce the risk of injury through
interaction with the a irbag t hat can occur, for example, by being too
close to the stee ring wheel an d instr ument panel when the airbag
inflates. In addi tion, the system has been certified to comp ly with t he
"suppression" requirements of the Safety Standa rd, to t urn off the
fron t air bag for infan ts up to 1 2 months who a re res train ed on the
front passenger seat in child restrai nts that are listed in the Stan­
d ar d.
Even thoug h your vehicle is equipped with an Advanced Airbag
system , a ll ch ildren, especially those 12 years and yo unger, should
always r ide in t he back seat p roperly restrained for t heir ag e and si ze .
Th e ai rbag on the passenge r si de makes the front seat a potentia lly
dange rous p lace for a child to r ide. Th e front seat is not th e safest
place fo r a child in a forward-facing c hild safety seat. It can be a very
d an ge rous p lace for a n infan t or a large r chil d i n a rea rwa rd-facing
seat. •
Advanced Airbags and the weight-sensing
mat in the front seat
Th e Advanced A irbag System i n your ve hicle de tects t he p resence o f
an infa nt o r ch ild in a child rest rai nt on the fro nt passenger sea t using
the we ight-sens ing mat in the seat cushion and the senso r be low the
saf ety belt la tch o n th e front passenge r seat tha t measur es t he
tension on the safety belt.
Th e weigh t-sens ing ma t me asures tot al we ight of the child and the
child safety seat and a child blanket on the fro nt passe nger seat . The
we ight on the fro nt passenger se at is re lated to t he design of the
child res traint and i ts "footpri nt", the size and shape of t he bottom
of the ch ild restraint as it sits o n the seat . The weight of a child
restrain t an d its "foo tpr int" vary for differe nt k inds of child res tra ints .,_