2018 AUDI TT ROADSTER maintenance

Table of contents
Airbag system . . . . . . . . . . . . . . . . . . . .
194
Important information . . . . . . . . . . . . . . . 194
Front a irbags . . . . . . . . . . . . . . . . . . . . . . . 198
Mon itoring the Advanced Airbag System . 205
Knee airbags .. .. ............. .... .. . 210
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 212
Child safety . . . . . . . . . . . . . . . . . . . . . . 216
Important information . ....... .. .. .. . 216
C hi ld safety seats . . . . . . . . . . . . . . . . . . . . 221
Secur ing ch ild safety seats . . . . . . . . . . . . 225
Add it io nal info rmation . . . . . . . . . . . . . . . 228
Maintenance and Care . . . . . . . . . . . 229
Checking and Filling . . . . . . . . . . . . . 229
F ue l..... .. .. .. ............. .... .. . 229
Ref ueling . . . . . . . . . . . . . . . . . . . . . . . . . . 230
E m issions cont ro l sys tems . . . . . . . . . . . . 233
On Board Diagnostic System (OB D) . . . . . 233
Engine compartment . . . . . . . . . . . . . . . . . 233
Eng ine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Cooling system . . . . . . . . . . . . . . . . . . . . . . 239
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 241
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
W indshield washe r system . . . . . . . . . . . . 243
Service i nterval d isplay 24 3
Wheels ... .. .. ................ ... . 244
Wheels and T ires . . . . . . . . . . . . . . . . . . . . 244
T ire press ure monitor ing system
T ire press ure monitor ing sys tem 26
1
26 2
Care and cleaning . . . . . . . . . . . . . . . . 266
Gene ral informa tion . . . . . . . . . . . . . . . . . 266
Ca r washes . . . . . . . . . . . . . . . . . . . . . . . . . 266
C leaning and care information . . . . . . . . . 267
P lacing your vehicle o ut of service . . . . . . 271
Do It Yourself . . . . . . . . . . . . . . . . . . . . 272
Emergency assistance . . . . . . . . . . . 272
Trun k escape latch . . . . . . . . . . . . . . . . . . . 272
Gene ral information . . . . . . . . . . . . . . . . . 272
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 272
T ire mob ility k it . . . . . . . . . . . . . . . . . . . . . 273
Replac ing whee ls . . . . . . . . . . . . . . . . . . . . 27S
Spare tire . . . . . . . . . . . . . . . . . . . . . . . . . . 279
4
Fuses and bulbs . . . . . . . . . . . . . . . . . . 280
E lectrica l fuses . . . . . . . . . . . . . . . . . . . . . . 280
B ul bs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Emergency situations . . . . . . . . . . . . 283
Genera l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Start ing by push ing or tow ing . . . . . . . . . . 283
Start ing with jumper cables . . . . . . . . . . . 283
U sing the jump start cable . . . . . . . . . . . . 284
T ow ing with a tow truck . . . . . . . . . . . . . . 285
Raising the vehicle . . . . . . . . . . . . . . . . . . . 286
Accessories and technical data . . 288
Technical data . . . . . . . . . . . . . . . . . . . . 288
Vehicle spec ificat ions . . . . . . . . . . . . . . . . 288
Notes abo ut te chnical data . . . . . . . . . . . . 288
D imens io ns . . . . . . . . . . . . . . . . . . . . . . . . . 288
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 2 88
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Consumer Information . . . . . . . . . . 290
Warranty coverages . . . . . . . . . . . . . . . . . . 290
Operating your vehicle outside t he U.S.A.
or Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Audi Service Repair Manuals and Literature . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 290
Accessor ies a nd techn ica l changes . . . . . . 292
De clara tion of compliance for
te lecommunications eq uipment a nd
electron ic sys tems . . . . . . . . . . . . . . . . . . . 293
Index ...... .. .. .. .. ............. .. 294

Replacing a key
If a key is lost, see an authorized Audi dealer or
authorized Audi Service Facility. Have
this key de­
activated.
It is important to bring all keys with
you. If a key is lost, you should report it to your
insurance company.
Number of keys
You can check the number of keys ass igned to
your vehicle in the Infotainment system . To do
this, select the
I MENU I button > Vehicle > left
control button
> Service & checks > Vehicle in ·
formation .
This way, you can make sure that you
have all the keys when purchasing a used vehicle .
Electronic immobilizer
The immobilizer prevents unautho rized use of
the vehicle .
Unde r certain circumstances, the vehicle may not
be able to start if there is a remote contro l key
from a different vehicle manufacturer on the key
chain .
Data in the master key
When driving , service and maintenance- relevant
data is continuously stored in your remote con­
trol key . Your Audi service adviso r can read out
this data and te ll you about the work your vehicle
needs. This applies also to veh icles with a con­
venience key *.
Personal convenience settings
If two people use one vehicle, it is recommended
that each person always uses "their own" master
key. When the ignition is turned
off or when the
ve hicle is locked, persona l convenience settings
for the following systems are stored and as­
signed to the remote master key .
- Climate control system
- Parking aid*
- Active lane assist*
- Side ass ist*
- Drive select
a The stored settings are automatically recalled co
;:::: when you unlock the vehicle, open the doors or ,....
~ turn on the ignition. 0 ,....
Vl co
Opening and closing
A WARNING
If you leave the vehicle, switch the ignition off
and take the vehicle key w ith you. This applies
particularly when children remain in the vehi­
cle . Otherwise the child ren cou ld start the en­
g ine or operate electrical equ ipment such as
power windows.
(D Note
Protect the remote control key against high
temperatures and direct sunl ight.
(D Tips
- The operation of the remote control key can
be temporarily disrupted by interference
from transmitters near the vehicle working
in the same frequency range (such as a cell
phone or radio equipment). Always check if
yo ur vehicle is locked!
- For an explanat ion on conformity with the
FCC regulatio ns in the United States and the
Industry Canada regulations, see
¢page 293.
Removing the mechanical key
Fig. 13 Remote co ntro l master key : removing the mechan i­
cal key
.,. Press the re lease buttons (D ¢ fig . 13 and re­
move the mechanical key from the remote con­
trol key.
Using the mechanical key, you can:
- Lock/unlock the glove compartment.
- Manually lock/unloc k the vehicle s>
page 2 7.
- Mechanically loc k the doors s>
page 2 7.
23

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Avoid full acceler ation
You sho uld rare ly t rave l a t t he maxim um vehicle
speed . High speeds cause a disproportionately
h igh increase in fuel consumption, emissions and
traffic noise . Slower driving saves fuel.
Reduce idling time
It pays off to stop the eng ine, for example when
at ra ilroad crossings or traffi c lights w ith longer
red lights . Stopping the engine for 30 -40 sec­
onds already saves more fuel than the amount of
extra fuel needed to restart the engine.
I t takes a very long time in idle to wa rm the en­
gine up to operating tempera ture . Wea r and
emissions are especially high in the warm -up
p hase . Therefore, you should begin driving im ­
mediately after starting the engine. Avoid high
RPMs while do ing th is.
Hav e ma intenanc e performed r egularly
By having maintenance performed regu lar ly on
your vehicle, you can he lp to reduce fuel con ­
sumption before yo u even start to drive. The
maintenance condition of your vehicle not only
affects traffic safety and long-term va lue but al­
so impacts
fu el con sumpt ion .
A poorly maintained engine can lead to fuel con ­
sumpt ion that is 10% higher than norma l.
A lso check the
o il l evel when refueling . The oil
consumpt ion
depends large ly on the engine load
and speed. It is normal for the oil consumption
of a new eng ine to reach its lowest point only af­
ter a certain amount of use. Therefore, the oil
consumption can only be properly judged after
approx imately 3,000 m i (S,000 km) have been
driven.
Avoid short trips
The engine and exhaust clean ing system must
reach their opt imal
op erating temp eratur e to ef­
fective ly reduce consumpt ion and emiss ions.
A co ld engine uses a disproportionately h igh
amount of fuel. The eng ine reaches operating
temperature and consumpt ion normalizes only
afte r approx imately
2.5 miles (4 km) .
Driving
@ Note
Do not leave engine idling unattended after
start ing. If warning lights sho uld come on to
i ndicate improper operation, they would go
unheeded. Extended idling also produces
heat, which could resu lt in overheating or
other damage to the veh icle o r other proper­
ty.
@ Note
- Have your ve hicle ma intained properly and
in accordance w ith the service recommenda­
tions i n your Warranty
& Main tenance book­
let. La ck of prope r mai nte nan ce as we ll as
imp rope r use of t he ve hicle will impa ir the
function of the em iss ion cont ro l system and
co uld lead to damage .
- Do not alte r or remove any compone nt o f
t he Emission Contro l System unless ap ­
proved by the man ufacturer .
- Do not alte r or remove any dev ice, s uch as
heat shields, switc hes, ignition wires,
valves, which are designed to protect your
vehicle's Emission Contro l System and other
impo rtant ve hicle components.
(D Tips
The cons umption estimates as published by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and T ransport Canada may not co rre­
spond to your actual consumption on the r oad, wh ich w ill vary depending upon veh icle
l oad and speed, road and weather cond itions,
tr ip length, etc.
57

System settings
Select Invisible for t he MMI to not be v is ibl e to
othe r devices. Howeve r, it is still possib le to es ­
ta bli sh a B luetooth con nection with paired de ­
vices when the v is ibility is switched off . Se lect
Off to turn visibi lity off . Then a B luetooth con ­
nect io n is not possible .
-Bluetooth audio player : when this function is
switched on
g, t h e Blue tooth aud io player is
available as a so urce in t he
Media menu .
-Delete Bluetooth device : th e se lected cell
phone/mobile device is d isconnected from t he
MMI.
- Show Bluetooth profiles : you ca n Connect or
Disconnect the Handsfree profi le a nd the Di­
rectory /contacts *
separately.
- Bluetooth audio player : switch th is function on
g to be a ble to selec t the B luetoo th a udio p lay­
er as a source in t he M edia me nu.
-Bluetooth name : the MMI B luetoo th name (for
example ,,AUDI M MI 2017") is displayed and
can be changed .
W hen the function is switched on
g , the symbo l
@<=>page 102, fig . 110 appears in the Infotain ­
ment sys tem disp lay.
Online settings*
- Data connection settings :
see<=> page 130,
Configuring the data connection
- Data usage counter : th e amount of data pack ­
ets that a re sent and received throug h the MMI
is d isp layed. You can reset the data usage infor­
mation to zero using the
Reset data counter
opt ion.
- Network status : the mobile netwo rk p rovider
for data se rvice as well as the network status
are disp layed .
Wi-Fi settings*
See <=> page 129, Wi -Fi hotspot.
SIM PIN settings*
- Automatic PIN entry:
when this funct ion is
swi tched on
g , th e S IM PIN is automatically
saved in the MMI after it is entered for t he first
time. The SI M PIN for four d ifferent SIM ca rds
can be saved i n the MMI. With the function
switched off, the cur rently stored SI M PIN i s
dele ted from the MMI. When the a utomat ic
176
P IN entry is swi tched on, the re a re no S IM P IN
prompts .
-Disable PIN query : when sw itche d on, there are
no SIM PIN queries . The a utomatic PIN entry is
not use d in this case .
-Change PIN : you can change the P IN on you r
SI M card . First ente r th e cur rent SI M PIN. T he
SI M PIN may on ly conta in digits 0 -9 . T he new
SI M PIN must be entered twice for security a nd
then it w ill be saved to the SI M card .
Apple CarPlay sound settings/ Android Auto
sound settings
App lies to : vehicles wit h Audi s m artph one interface
See<=> page 177.
About Apple CarPlay/ About Android Auto
App lies to : vehicles wi th Audi sma rtphone interface
Here you w ill find leg al inform ation reg arding
t h e use o f A pple Car Play o r And ro id Auto and in ­
fo rmat ion about devi ce -s p ecific data exc han ge.
Delete CarPlay device/Delete Android Auto
device
App lies to : vehicles wi th Audi s m artph one interface
Requirement: yo ur cell phone m ust not be con ­
necte d to the Au di music interface with a USB
adapter.
S e le ct :
Audi smartphone > a d evice from th e list
> righ t con trol button .
To re m ove your cell p ho ne from the list, se lect
a nd con firm
Delete CarPlay device or Delete An ­
droid Auto device .
© Tips
Some SIM cards do not allo w the SIM PIN
qu eri es to be sw itch ed off .
System update
.,. Selec t: !ME NUI butt on> Settings > left cont rol
bu tton >
System maintenance.
- System update :
slide the storage device with
t he upda te da ta into the a pprop ria te d rive
r=;, page 155. Selec t an d co nfirm t he drive>
Start update . The leng th of the p rocess de ­
pe nd s on the s ize of the up dat e.

System settings
Ringtone volume: you can adjust the volume of
the selected ringtone by turning the contro l
knob.
Message volume: you can adjust the volume of
the notification for an incoming text message by
turning the control knob.
Microphone input level : you can adjust the vol­
ume during a phone call by turning the control
knob.
Navigation
A pp lies to: ve hicles w ith navigation system
Voice guidance: see¢ page 141, Voice guidance.
Voice guidance during phone call: see
¢ page 141, Voice guidance.
Voice guidance volume: you can adjust the voice
gu idance volume during active route guidance by
turn ing the control knob.
Entertainment fader : the volume of audio play ­
back can be temporarily lowered when the park­
ing system or voice guidance is active.
Voice recognition system
App lies to: ve hicles w ith vo ice recogni tion sys te m
Short dialog : prompts in a shorte r format can be
switched on or o ff.
Speech dialog system volume: you can adjust
the volume of the prompts by turning the control
knob.
Parking aid*
You can adjust the signal tone volume by turning
the control knob.
-Adjusting the Front volume: select and con­
firm
High , Medium or Low .
- Adjusting
the Rear volume: select and confirm
High, Medium or Low .
MMI touch volume*
You can adjust the vo lume of the prompts for the
MMI to uch* by turning the contro l knob.
Audi Heartbeat
You can adjust the volume of Aud i Heartbeat by
t ur nin g the control knob.
178
(D Tips
Please note that the voice recognition sys­
tem* is not available in Cabr io lets t hat do not
have a factory-installed safety belt micro­
phone.
Restarting the MMI
(Reset)
Fig. 149 Button co mbin ation to res tart the syste m
.. Briefly press the control knob and both buttons
at the same time to immediately open the
menu
upward ¢ fig. 149.
Software License
information
Information on MMI software and licensing
agreements
- Select: ~
I M _ E_N_ U~ I button> Settings > left control
button >
System maintenance > Version infor­
mation.
- Or : online at www .audiusa .com/software info .
Information on instrument cluster software and
licensing agreements
Press the reset button 10.01 twice within five sec ­
onds after switching the ignition on.

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-Never install seat covers or replacement
upholstery over the front seatbacks that
have not been specifically approved by
Aud i.
- Never use add itiona l seat cushions that
cover the areas where the s ide airbags in­
flate.
- Damage to the origina l 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.
- The airbag system can deploy only once . Af­
ter an airbag has been deployed, it must be
rep laced with new rep lacement parts de­
signed and approved especially fo r you r
Audi mode l version. Replacement of com­
plete airbag systems or airbag components
must be performed by qualified workshops
only . Make sure that any airbag service ac­
tion is entered in your Audi Warranty
&
Maintenance booklet under AIRBAG RE­
PLACEMENT RECORD.
- For safety reasons in severe accidents, the
alternator and starter are separated from
the vehicle battery with a pyrotechn ic circuit
interrupter.
-Work on the pyrotechnic circu it interrupt­
er must only be performed by a qualified
technicians who have the experience, in­
formation and special tools necessary to perform the work safely.
-If the vehicle or the circuit interrupter is
scrapped, all app licab le safety precautions
must be followed.
@ For the sake of the environment
Undep loyed airbag modu les and pretension­
ers might be classified as Perch lorate Materi­
al
-special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­
rate . When the veh icle or parts of the re­
straint system including airbag modules and
safety belts with p retensioners are scrapped,
all appli cable laws and regulations must be
observed. Your authorized Audi dealer is fa­
m il iar with these requi rements and we re com­
mend that you have you r dealer per form this
service for you.
Airbag syste m
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System
performs in a crash. For example, using tire-rim
combinations not approved by Audi, lowering the
vehicle, changing the stiffness of the suspension, including the springs, suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
electronic cont rol u nit. Some suspension c hanges
can, for example, increase the fo rce leve ls meas­
u red by the sensors and make t he a irbag system
deploy in crashes in which it wou ld not deploy if
the changes had not been made. Other kinds of
changes may reduce the force levels measured by
the sensors and prevent the a irbag from deploy­
ing when it should.
A WARNING
-
Changing the vehicle's suspension including use of unapproved tire-rim combinations can
change Advanced Airbag perfo rmance and in­
crease the risk of serious personal injury in a
crash.
- Never install suspension components that
do not have the same performance charac­
ter istics as the components o riginally instal­
led on your vehicle .
-Never use tire-rim combin ations that have
not been approved by Audi .
209

Check ing and F illing
time. An authorized Audi dealer has instruc­
tions about how to measure oil consump ­
tion acc urately.
- You can find information on engine oi l and
engine oil capacities for the USA at
www.audiusa.com/help/maintenance, or
for Canada at www.audi.ca/ca/web/en/
cus tomer-area/ ca re-a nd-mai n tena nee/ aud i­
se rvice -sched ules . html, or call
800-822-2834 .
Adding engine oil
Fig. 18 2 Eng ine co mpa rtmen t: e ngin e o il fille r open ing
cove r
Obse rve the safety p recaut ions ¢&. in Working
in the engin e comportment on page 233 .
"'Turn the eng ine off.
"' Open the hood ¢ page 235.
"'Unscrew the cap~ for the eng ine o il filler
opening
¢ fig. 182.
"'Carefu lly add 0.5 quart (0 .5 liter) of the correct
oi l
¢pag e 236.
"'Check the oil leve l again after two minutes
¢ page 23 7, Checking the engine oil level.
"' Add a smaller amount of engine o il if necessa­
ry . T he
marking @Qpage 237, fig . 181 must
not be exceeded
¢ QJ) in Checking the engine oil
level on page 237.
"' Close the engine oil fille r cap and p ush the dip ­
stick a ll the way in .
"' Close the hood .
A WARNING
-When adding oi l, do not let oil d rip onto hot
engine components. T his increases the r isk
of a fire .
238
-You must sea l the cap on the oi l filler open ­
ing correct ly so that oi l does not leak out
onto the hot eng ine and exhaust system
when the engine is running, because this is a fire hazard .
- Always clean sk in thoroughly if it comes i nto
contact with eng ine oil.
- Engine oil is poisonous and must be kept
out of reac h of children .
- Store the engine o il secure ly in the origina l
container.
@ Note
- Your Limited New Vehicle Warranty does
not cover damage or ma lfunctions due to
failure to fo llow recommended mainte­
nance and use req uirements as set fort h in
the A udi Owner's Manual and Warranty
&
Ma intenance bookle t.
- Use on ly a high quality e ngine o il that ex­
press ly complies with the A ud i oi l quality
standard spec ified fo r you r vehicle 's eng ine .
Us ing any othe r o il can cause ser io us eng ine
damage .
- Do not mix a ny add it io na l lubr icants into
the engine oil. Damage ca u sed by such add i­
t ives is no t covere d by the w arra nty.
@ For the sake of the environment
- Oil sho uld neve r enter the sewer system or
c ome into con ta ct w ith the g round.
- Pay attent ion to lega l req uiremen ts when
disposing of empty o il conta iners.
Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service sta­ tion.
Before you check anything in the engine compart ­
ment,
always r ead and heed all WARNINGS Q .&.
in Working in the engine compartment on
page 233.
The eng ine o il must be changed according to the
i nterva ls spec ified in your Warranty
& Ma inte­
nance boo klet . This is ve ry importa nt because the
.,..

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Tire pressure monitoring system
(J_) General notes
Each tire, incl uding the spare (if provided),
should be checked month ly when co ld and inflat­
ed to the inf lation pressure recommended by the
ve hicle manufacturer on the vehicle placard or
tire inflat ion pressure label. (If your vehicle has
tires of a d ifferent s ize tha n the s ize indicated on
the veh icle placa rd or t ire inflation pressure la­
be l, you s hou ld determine the prope r tir e infla­
tion pressure fo r th ose tires).
As an added safety feature, your ve hicle has been
equ ipped w ith a t ire pressu re monito ring system
(TPMS) that ill uminates a low tire p ress ure tell­
tale whe n one or more of yo ur t ires is sign ificant ­
l y unde r-infla ted. Accord ingly, whe n the low tire
p ressure tellta le illuminates, yo u should stop and
check your tires as soon as possible, and inflate
them to the proper press ure. D riving on a signifi ­
cantly under-inflated tire causes the tire to ove r­
h eat and can lead to t ire failure. Under-inflation
a lso reduces fuel efficiency and ti re tread life,
and may affect the veh icle's handling and stop­
p ing ability .
P lease note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsib il ity to ma inta in correct tire pressure,
even if u nder-inflation has not reached t he leve l
to tr igger illum inat io n of t he TPM S low tire p res ­
sure telltale.
Your veh icle has also been equ ipped w ith a TPMS
malfunct ion ind icator to indicate when the sys­
tem is not operat ing properly. The TPMS ma l­
f u nction ind icator is combined w ith the low tire
p ressure tellta le. Whe n the system det ects a
mal function, the te lltale wi ll flash fo r approxi ­
mate ly one mi nute and then remain continuous ly
illum inated. This sequence will continue upon
subseq uent ve hicle start-ups as long as the ma l­
function ex ists .
W hen t he malfunctio n indicator is ill uminated,
the system may not be ab le to detect or signa l
low t ire press ure as intended. TPMS ma lfunctions
may occur for a var iety of reasons, including the
Wheels
insta llation o f replacement or alternate tires or
whee ls on the vehicle that prevent the TPMS
from functioning p roperly . Always check the
TPMS ma lfunction te lltale after replac ing one or
more tires or wheels on you r vehicle to ensure
t h at the rep lacement or a lternate tires a nd
wheels allow t he TPMS to continue to function
prope rly.
If the Tire Pressure Monitoring System
indicator appears
Applies to: vehicles with Tire Pressure Monitoring System in­
dicator
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction.
U sing the ABS se nsors, the t ire pressure monitor­
ing system compares the tire tread c ircumfer­
ence and v ibration characterist ics of the ind ividu­
al tires. If the pressu re changes in one o r more
t ir es, th is is indica ted in the Info tainment sys tem
display wi th an indica to r li ght
ti] and a message.
If only one ti re is affected, the location of tha t
tire will be indicated.
T he tire press ures mus t be store d in the Infota in­
me nt system agai n ea ch t ime t he p ressures
change (switching between partia l and full load
pressure) or after c hanging or replacing a tire on
yo ur vehicle
¢ page 262 . The tire pressure moni ­
toring system on ly monitors the tire pressure you
have stored. Refer to the t ire pressure label for
the recommended t ire pressure for your vehicle
¢ page 254, fig . 190 .
Tire tread c ircumference and vibration character ­
istics can change and cause a tire pressu re warn­
i ng if:
- the ti re pressure in one or more tires is too low
- the tire has str uctural damage
- t he t ire w as replaced or the t ire pressu re w as
changed and it was no t stored ¢
page 262
- the spare tire* is i nstalled
Indicator lights
ti] -loss of pressure in at least one tire ¢,& .
Check the t ires and replace or repair if necessary.
Check/correct the pressures of all fou r tires and
.,.
261