2012 Lexus GX460 low oil pressure

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
■When replacing wheels
The wheels of your Lexus are equipped with tire pressure warning valves and trans-
mitters that allow the tire pressure warning system to provide advanced warning in
the event of a loss in tire inflation pressure. Whenever wheels are replaced, the tire
pressure warning valves and transmitters must be installed. (→P. 6 2 9 )
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire.
Doing so may result in an accident, causing death or serious injury.
■When installing the wheel nuts
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened, leading to
bolt or disc wheel damage. In addition, the oil or grease can cause the wheel nuts
to loosen and the wheel may fall off, causing an accident and resulting in death or
serious injury. Remove any oil or grease from the wheel bolts or wheel nuts.
●Be sure to install the wheel nuts with the
tapered ends facing inward. Installing the
nuts with the tapered ends facing outward
can cause the wheel to break and eventu-
ally cause the wheel to come off while driv-
ing, which could lead to an accident
resulting in death or serious injury.
Ta p e r e d
portion

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5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
The tire pressure warning system may become inoperative in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used. (Even if you use genuine Lexus wheels,
the tire pressure warning system may not work properly with some types of
tires.)
●If tire chains are used.
●If the spare tire is in a location subject to poor radio wave signal reception.
● If a large metallic object which can interfere with signal reception is put in the
luggage compartment.
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the engine switch is turned to the “ON” position, have it checked by your
Lexus dealer.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. (→P. 6 1 4 )

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5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
If a warning message is displayed
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warning indicates the possibility of damage to
the vehicle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure The warning light may come on if the engine oil pres-
sure is too low.
If a warning is shown on the instrument cluster, stay calm and perform the
following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
instrument cluster.
Multi-information display
Rear height control air sus-
pension display
If any of the warning lights comes on again after the following actions
have been performed, co ntact your Lexus dealer.

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Alphabetical index
GX460_U.S.A. (OM60J00U)
TRAC.........................................................336
Traction control .....................................336
Trailer towing..........................................370
Transmission shift switches ................ 189
Trip information display....................... 212
Trip meter ................................................. 195
Turn signal lightsReplacing light bulbs........... 668, 669
Switch ........................................................ 192
Wattage.................................................. 763
Vanity lights Vanity lights ..........................................539
Wattage.................................................. 763
Vanity mirrors ............................................539
Vehicle identification number ......... 753
Vehicle load limits ................................364
Ventilators ................................................ 551
VSC (Vehicle Stability Control).....335
Warning buzzers Brake system ....................................... 706
Open door ...............................692, 704
Open glass hatch reminder .........705
Seat belt reminder............................. 692
Third power seat.................................... 72 Warning lights
Anti-lock brake system
(ABS) ................................................... 690
Brake system.......................................688
Charging system ............................... 689
Kinetic dynamic suspension
system.................................................... 691
Low fuel level....................................... 692
Malfunction indicator lamp ..........689
Master warning light........................ 693
Open door ........................................... 692
PCS .......................................................... 690
Seat belt reminder light .................. 692
Slip indicator light..............................690
SRS airbags.......................................... 690
Tire pressure warning light .......... 693
Warning messages Automatic transmission fluid
temperature........................................ 701
Automatic transmission
system.................................................... 701
Brake system....................................... 706
Dynamic radar cruise control system...................................... 703, 708
Engine oil maintenance.................. 706
Engine oil pressure........................... 700
Intuitive parking assist ......................702
Low washer level .............................. 706
Open door ........................................... 704
Open glass hatch.............................. 705
Open moon roof............................... 705
Pre-collision system..............702, 707
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