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8-3. Maintenance
8
Maintenance and care
The OBD system determines that a
problem exists somewhere in the emis-
sion control system.
Your vehicle may not pass the I/M test
and may need to be repaired. Contact
your Lexus dealer to service the vehi-
cle.
When the 12-volt battery is discon-
nected or discharged
Readiness codes that are set during ordi-
nary driving are erased. Also, depending
on your driving habits, the readiness codes
may not be completely set.
The error code in the OBD system will
not be cleared unless the vehicle is
driven 40 or more times.
Vehicle exterior mainte-
nance items list
Items Check points
Doors
Do the doors oper-
ate smoothly?
Hood
Does the motor
hood lock system
work properly?
Fluid leaks
There should not be
any signs of fluid
leakage after the
vehicle has been
parked.
Tires
Is the tire inflation
pressure correct?
The tires should
not be damaged
or excessively
worn.
Have the tires
been rotated
according to the
maintenance
schedule?
The wheel bolts
should not be
loose.
Windshield wipers
The wiper blades
should not show
any signs of
cracking, split-
ting, wear, con-
tamination or
deformation.
The wiper blades
should clear the
windshield with-
out streaking or
skipping.
Emission inspection and
maintenance (I/M) pro-
grams
Some states have vehicle emission
inspection programs which include
OBD (On Board Diagnostics)
checks. The OBD system monitors
the operation of the emission con-
trol system.
When the malfunction indicator
lamp comes on
Situations your vehicle may not
pass the I/M test
When the malfunction indicator
lamp still remains on after sev-
eral driving trips
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