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613
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
■After changing the engine oil (U.S.A. only)
The engine oil maintenance data should be reset. Perform the following proce-
dures:
Press the Menu switch ( P. 212) to change the multi-information display
to blank.
Turn the “ENGINE START STOP” switch off.
While pressing the ODO/TRIP button ( P. 1 9 5 ) , t u r n t h e “ E N G I N E
START STOP” switch to IGNITION ON mode.
Continue to press and hold the butto n for more than 7 seconds after the
“ENGINE START STOP” switch is turned to IGNITION ON mode.
STEP1
STEP2
STEP3
STEP4
The message shown in the illustration will
appear on the display. After 5 seconds, the
system reset will be completed.
Page 615 of 825

614
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation or skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in househol d trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly retightened.
Page 653 of 825
652
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
51ECU-B10 A
Body ECU, meter, heater, steering
sensor, wireless remote control, seat
position memory, tilt and telescopic
steering, multi display, Smart access
system with push button start, folding
seat, cool box, DSS#2 ECU, steering
switch, D-module switch, overhead
module
52WSH FR NO.27. 5 ADSS#1 ECU
53H-LP RH-LO15 AHeadlight low beam (right), headlight
leveling system
54H-LP LH-LO15 AHeadlight low beam (left), headlight
leveling system
55INJ10 ACoil, injector, ignition, noise filter
56EFI NO.210 A
O2 SSR, AFM, ACIS VSV, AI
COMB, KEY OFF PUMP, EYP VSV,
EGR VALVE, CANISTER VSV, AI
VSV RLY, AI PUMP HTR RLY
57WIP FR NO.27. 5 ADSS#1 ECU
58WSH RR15 ARear window washer
59SPARESpare fuse
60SPARESpare fuse
61SPARESpare fuse
FuseAmpereCircuit
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694
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
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 no t work properly with some types of
tires.)
●If tire chains are used.
●If the spare tire is in a location subj ect 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 3 )
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5
When trouble arises
699
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
Stop the vehicle immediately.A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warning ind icates the possibility of damage to
the vehicle that may lead to an acci dent. 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.
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5
When trouble arises
705
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
Indicates that the parking
brake is still engagedIf the vehicle reaches a
speed of 3 mph
(5 km/h),
flashes and a buzzer
sounds to indicate that
the parking brake is still
engaged.
Release the parking
brake.
Indicates that the washer
fluid level is lowAdd washer fluid.
(U.S.A. only)
Indicates that the engine
oil is scheduled to be
changed
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset.)
Wa r n i n g m e s s a g eDetailsCorrection procedure
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706
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
(U.S.A. only)
Indicates that the engine
oil and oil filter should be
changedHave the engine oil and oil
filter checked and
changed by your Lexus
dealer.
(Turns on)
(If equipped)
Indicates that the pre-
collision system is not
currently functional
Clean the grille and the
sensor. This message appears
when the pre-collision
system is hot. In this case,
wait until the system
cools down.
(If equipped)
Indicates that intuitive
parking assist is dirty or
covered with iceA buzzer also sounds.
Clean the sensor.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Page 720 of 825
5
When trouble arises
719
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60E69U)
Other messagesIf the following message is displayed, take appropriate action and confirm
that the message has disappeared. ( P. 323)
MessageCorrection procedure
(If equipped)
Select the four-wheel driving position switch in L4
and shift the shift lever to D or R.
(If equipped)
Confirm the operating conditions.
■Warning light display in radar cruise mode (if equipped)
In the following cases, the warning light may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. ( P. 6 1 3 )