Emission Inspection And Mainte- Nance (I/M) Programs - Lexus NX300h Owner's Manual

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6-2. Maintenance
Items
• There should not be any
Fluid leaks
• Is the tire inflation pres-
• The tires should not be
Tires
• Have the tires been
• The wheel nuts should
• The wiper blades should
Windshield
wipers/
rear window
• The wiper blades should
wiper
LEXUS NX300h
al_USA_OM78212U
Check points
signs of fluid leakage
after the vehicle has
been parked.
sure correct?
damaged or excessively
worn.
rotated according to the
maintenance schedule?
not be loose.
not show any signs of
cracking, splitting, wear,
contamination or defor-
mation.
clear the windshield/
rear window without
streaking or skipping.
Owners Manu-
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.
If the malfunction indicator lamp
comes on
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 vehicle.
Your vehicle may not pass the I/
M test in the following situations:
 When the 12-volt battery is discon-
nected or discharged
Readiness codes that are set during
ordinary driving are erased.
Also, depending on your driving
habits, the readiness codes may not
be completely set.
 When the fuel tank cap is loose
The malfunction indicator lamp
comes on indicating a temporary
malfunction and your vehicle may
not pass the I/M test.