Lexus GS 450h 2008 Warranty And Services Manual page 72

EXPLANATION OF MAINTENANCE ITEMS
Timing Chain
The GS 450h is equipped with a tim-
ing chain that requires no periodic
inspection.
Tire Rotation
Tires should be rotated according
to the instructions in your Owner's
Manual. When rotating tires, check
pressure and check for damage
and uneven wear. If the vehicle is
equipped with a spare tire, check the
condition and pressure of the spare.
Tire-Pressure Warning Sensors
A tire-pressure sensor is mounted on
each full-size wheel. These sensors
do not require periodic maintenance.
When a sensor' s long-life lithium bat-
tery becomes discharged, the battery
should be replaced by a qualified
technician following procedures in
Lexus service and repair publications.
Transmission
Inspect each transmission component
for signs of leakage. If you discover
any leakage, have it repaired immedi-
ately by a qualified technician. (The
electric motor/generators do not
70 Scheduled Maintenance Log
require periodic maintenance.) Any
service that requires inspecting or
replacing transmission fluid should be
performed by a qualified technician
following procedures in Lexus service
and repair publications. Please refer
to the important safety precautions
found on the inside front cover of this
booklet.
Variable Gear Ratio Steering
Assembly
Inspect the variable gear ratio steer-
ing assembly for damage and loose
electrical connections. Tighten loose
connections and if you discover any
damage, have it repaired immediately
by a qualified technician following
procedures in Lexus service and
repair publications.