Treadwea
r
Th e treadwea r grad e is a
comparativ e ratin g base d o n th e
wea r rat e o f th e tir e whe n teste d
unde r controlle d condition s o n a
specifie d governmen t tes t course .
Fo r example , a tir e grade d 15 0
woul d wea r one-and-a-hal f
(1-1/2 ) time s a s wel l o n th e
governmen t cours e a s a tir e
grade d 100 . Th e relativ e
performanc e o f tire s depend s
upo n th e actua l condition s o f thei r
use , however , an d ma y depar t
significantl y fro m th e nor m du e t o
variatio n in drivin g habits , servic e
practice s an d difference s i n roa d
characteristic s an d climate .
Tractio n - AA , A , B , C
Th e tractio n grade s fro m highes t
t o lowes t ar e AA , A , B , an d C .
Thos e grade s represen t th e tire' s
abilit
y t o sto p o n we t pavemen t a s
measure d unde r controlle d
condition s o n specifie d
governmen t tes t surface s o f
asphal t an d concrete . A tir e
marke d C ma y hav e poo r tractio n
performance .
Warning : Th e tractio n grad e
assigne d to thi s tir e is base d o n
straight-ahea d brakin g tractio n
tests , and does no t includ e
acceleration , cornering ,
hydroplaning , o r pea k tractio n
characteristics .
Temperatur e - A , B , C
Th e temperatur e grade s ar e A (th e
highest) , B an d C , representin g
th e tire' s resistanc e t o th e
generatio n o f hea t an d it s abilit y
t o dissipat e hea t whe n teste d
unde r controlle d condition s o n a specifie
d indoo r laborator y tes t
wheel . Sustaine d hig h temperatur e
ca n caus e th e materia l o f th e tir e
t o degenerat e an d reduc e tir e lif e
an d excessiv e temperatur e ca n
lea d t o sudde n tir e failure . Th e
grad e C correspond s t o a leve l o f
performanc e whic h al l vehicl e
tire s mus t mee t unde r th e Federa l
Moto r Vehicl e Safet y Standar d
No . 109 . Grade s B an d A
represen t highe r level s o f
performanc e o n th e laborator y tes t
whee l tha n th e minimu m require d
b y law .
Warning : Th e temperatur e grad e
fo r thi s tir e i s establishe d fo r a tir e
tha t i s properl y inflate d an d no t
overloaded . Excessiv e speed ,
underinflation , o r excessiv e
loadin g eithe r separatel y o r i n
combination , ca n caus e hea t
build-u p an d possibl e tir e failure .
Owne r Assistanc e
Replacin
g ............. . 16 6
Rotatio n .............. . 16 6
Sno w ................ . 16 8
Spar e ................ . 18 9
Specification s ......... . 23 9
Wea r Indicator s ........ . 16 5
Tir e Wrenc h ............. . 18 8
Tools , Tir e Changin g ...... . 18 8
Towin g ................. . 19 1
Emergenc y Wrecke r
(To w Truck ) .......... . 19 1
Traile r ............... . 17 8
Transfe r Contro l Leve r
Automati c Transmissio n . . 8 0
5-Spee d
Manua l Transmissio n .. . 8 4
Transmissio n
Checkin g Flui d Leve l
5-Spee d Manua l
Transmissio n ..... . 21 5 Flui
d Selectio n ......... . 21 6
Shiftin g th e Automati c .. . 7 6
Shiftin g th e 5-Spee d Manua l 8 3
Trea d Wea r .............. . 16 5
Tri p Meter . See Trip Odomete r
Tri p Odomete r ........... . 5 8
Tur n Signa l Indicator s ..... . 6 4
Underside , Cleanin g ....... . 22 5
Unifor m Tir e Qualit y Gradin g 25 1
Unleade d Gasolin e .... . 198 , 20 0
Upholster y Cleanin g ...... . 22 6
Upshif t Indicato r ......... . 6 6
Vanit y Mirro r ............ . 10 6
Vehicl e Dimension s ....... . 24 3 Vehicl
e Identificatio n ...... . 23 2
Vehicl e Loadin g Informatio n . 23 3
Ventilatio n .............. . 12 2
VI N ................... . 23 2
Vinyl , Cleanin g .......... . 22 9
Viscosity , Oi l ............ . 21 3
WARNING , Explanatio n o f .. . i v
Warnin g Labels , Locatio n o f
.
4 8
Warrant y Coverage s ....... . 24 8
Washer , Rea r Windo w ..... . 7 4
Washer , Windshiel d
Checkin g th e
Flui d Leve l ....... . 71 , 19 8
Operatio n ............. . 7 1
Washin g ................ . 22 4
Waxin g an d Polishin g ..... . 22 4
