2006 LEXUS RX330 Owners Manual

MAINTENANCE
532
Tire inflation pressure
Check the pressure with a gauge every two weeks,
or at least once a month and adjust as shown on the
tire and loading information label. See page 570 for
additional information.
Tire surface
Check the tires carefully for cuts, damage or
excessive wear. See page 585 for additional
information.
Tire rotation
Rotate the tires according to the maintenance
schedule. (For scheduled maintenance information,
please refer to the “Owner’s Manual Supplement /
Scheduled Maintenance”.) See “Rotating tires” on
page 584.DOES YOUR VEHICLE NEEDREPAIRING?
Be on the alert for changes in performance and sounds, and
visual tip −offs that indicate service is needed. Some important
clues are:
 Engine missing, stumbling, or pinging
 Appreciable loss of power
 Strange engine noises
 A fluid leak under the vehicle (However, water dripping from
the air conditioning after use is normal.)
 Change in exhaust sound (This may indicate a dangerous
carbon monoxide leak. Drive with the windows open and
have the exhaust system checked immediately.)
 Flat−looking tires, excessive tire squeal when cornering,
uneven tire wear
 Vehicle pulls to one side when driving straight on a level
road
 Strange noises related to suspension movement
 Loss of brake effectiveness, spongy feeling brake pedal,
pedal almost touches floors, vehicle pulls to one side when
braking
 Engine coolant temperature continually higher than normal
If you notice any of these clues, take your vehicle to your Lexus
dealer as soon as possible. It probably needs adjustment or
repair.

MAINTENANCE
533
CAUTION
Do not continue driving with the vehicle unchecked. It
could result in serious vehicle damage and possibly
personal injury.
EMISSIONS INSPECTION AND
MAINTENANCE (I/M) PROGRAMS
Some states have vehicle emission inspection programs
which include OBD (On −Board Diagnostics) checks.
The OBD system monitors the operation of the emission
control system. When the OBD system determines that a
problem exists somewhere in the emission control system, the
malfunction indicator lamp comes on. In this case, your vehicle
may not pass the I/M test and need to be repaired. Contact
your Lexus dealer to service the vehicle.
Even if the malfunction indicator lamp does not come on, your
vehicle may not pass the I/M test as readiness codes have not
been set in the OBD system.
Readiness codes are automatically set during ordinary driving.
However, when the battery is disconnected or run down, the
codes are erased. Also, depending on your driving habits, the
codes may not be completely set.
Also, if the malfunction indicator lamp had come on recently
due to temporary malfunction such as a loose fuel tank cap,
your vehicle may not pass the I/M test.
The malfunction indicator lamp will go off after taking several
driving trips, but the error code in the OBD system will not be
cleared unless about 40 trips or more are taken.

MAINTENANCE
534If your vehicle does not pass the I/M test even the malfunction
indicator
lamp does not come on, contact your Lexus dealer to
prepare the vehicle for re −testing.

SECTION 6 – 1
535
SERVICE PROCEDURES AND
SPECIFICATIONS
Introduction
Vehicle identification536
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Theft prevention labels 537
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Engine compartment overview 539
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Do−it−yourself service precautions 541
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Parts and tools 543
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Positioning the jack 544
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INTRODUCTION
536
VEHICLE IDENTIFICATION
 Top left of the instrument panel
 Under the front passenger’s seat (on some models) The vehicle identification number (VIN) is the legal
identifier for your vehicle. This number is shown on the
left top of the instrument panel and can be seen through
the windshield from outside.
On some models — This number is also stamped under
the front passenger’s seat.
This is the primary identification number for your Lexus. It is
used in registering the ownership of your vehicle.
The vehicle identification number (VIN) is also on the
Certification Label.

INTRODUCTION
537
The engine number is stamped on the engine block as
shown.
THEFT PREVENTION LABELS(U.S.A. ONLY)
Your new vehicle carries theft prevention labels which are
approximately 47 mm (1.85 in.) by 12 mm (0.47 in.).
The purpose of these labels is to reduce the incidence of
vehicle thefts by facilitating the tracing and recovery of parts
from stolen vehicles. The label is designed so that once it is
applied to a surface, any attempt to remove it will result in
destroying the integrity of the label. Transferring these labels
intact from one part to another will be impossible.

INTRODUCTION
538
NOTICE
You should not attempt to remove the theft prevention
labels as it may violate certain state or federal laws.

INTRODUCTION
539
ENGINE COMPARTMENT OVERVIEW
1Power steering fluid
reservoir
2Engine oil level
dipstick
3Engine oil filler cap
4Brake fluid reservoir
5Fuse box
6Battery
7Radiator
8Condenser
9Electric cooling fans
10Engine coolant
reservoir
11Washer fluid tank