EXPL
ANATION OF MAINTENANCE ITEMSMAINTENANCE
Scheduled Maint enance Log 69
Spark Plugs
R
eplace at specified inter val. A quali-
fied technician should per form this
oper ation. T o ensur e optimum engine
per formance on ES 3 50, replace only
with D enso FK20HR11 plugs or
equiv alent.
S teering Link age and Boo ts
W ith the v ehicle stopped, check for
e xces sive fr eeplay in the steering
wheel. Inspect the link age for bending
and damage and the dust boots for
deterior ation, cracks and damage.
R eplace any damaged par ts. A quali-
fied technician should per form these
oper ations.
T iming Belt (S C)
R eplace e ver y 90 ,000 miles or
1 08 months. A qualified technician
should per form this oper ation.
T iming Chain (ES, G S, IS, LS)
The ES, G S, IS and LS ar e equipped
with a timing chain that r equires no
periodic inspection.
T ir e R otation
T ir es should be r otated accor ding
to the instructions in y our Owner’s
Manual. When r otating tir es, check
pr es sur e and check for damage and
une ven w ear. If the spar e is not rotat-
ed, check the condition and pr essur e
of the spar e. T
ir e-P res sur e W arning Sensor s
A tir e-pressur e sensor is mounted on
each full-siz e wheel. These sensor s
do not r equire periodic maintenance.
When a sensor ’s long-life lithium bat-
ter y becomes dischar ged, the battery
should be r eplaced by a qualified
technician follo wing procedures in
L exus ser vice and r epair publications.
T ransfer Case/T ransmis sion
Inspect each tr ansfer case/transmis-
sion component for signs of leak age.
If y ou disco ver any leak age, have it
r epair ed immediately b y a qualified
technician.
Note: The tr ansfer case/transmis sion
and tr ansmis sion fluid ar e a complete-
ly sealed unit. Ther efore, periodic
checks and r eplacement of the tr ans-
mis sion fluid ar e not required, and
ther e is no dipstick on the tr ansmis-
sion. Any r epairs that r equire adding
or r eplacing fluid should be per -
formed b y a qualified technician fol -
lo wing pr ocedures in Lexus ser vice
and r epair publications. 81183_09_LexusSedans_046_080f_R1 7/2/08 7:51 AM Page 69
