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448
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
Headlight aim
(
P. 489)• Phillips-head screwdriver
Light bulbs
( P. 491)
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead sc rewdriver
•Wrench
Power steering fluid
level (P. 459)• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel•Clean funnel
Radiator and con-
denser ( P. 457)
Tire inflation pres-
sure (P. 476)• Tire pressure gauge• Compressed air source
Washer fluid
( P. 463)• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsParts and tools
Page 454 of 620

454
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
■Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of the
same type as already in the engine.
Make sure to check the oil type and
prepare the items needed before adding
oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following situations,
oil consumption may increase, and engine oil may need to be refilled in between oil
maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or after
replacing the engine
●If low quality oil or oil of an inappropriate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing, or when driving
while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
■After changing the engine oil
The engine oil maintenance data should be reset. Perform the following procedures:
Press or of the meter control switch es and select on the multi-informa-
tion display.
Press or of the meter control switches and select “Vehicle Settings”, and then
press .
Press or of the meter control switch es and select “Oil Maintenance”, and then
press .
Select the “Yes” and press .
“Reset Complete” will be displayed when the reset procedure has been completed.
Engine oil selection P. 554
Oil quantity (Low Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
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470
GX460_OM_OM60R27U_(U)6-3. Do-it-yourself maintenance
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tire
s as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects th e radio wave signals is installed.
• If there is a lot of snow or ice on the vehi cle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extr emely higher than the specified level.
• 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 near the
spare tire.
• If tires not equipped with the tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered
in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
If tire position information is not correctl y displayed due to the radio wave conditions,
the display may be corrected by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
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499
GX460_OM_OM60R27U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers ................. 500
If your vehicle has to be stopped in
an emergency ........................... 501
If the vehicle is trapped in rising water ................................502
7-2. Steps to take in an emergency If your vehicle needs to be towed................................503
If you think something is wrong ...........................................509
Fuel pump shut off system ....... 510
If a warning light turns on or a warning buzzer
sounds............................................. 511
If a warning message is displayed.....................................520
If you have a flat tire .................. 524
If the engine will not start ........538
If the electronic key does not operate properly .............540
If the vehicle battery is discharged ................................. 543
If your vehicle overheats ......... 546
If the vehicle becomes stuck ............................................. 549
Page 503 of 620
503
GX460_OM_OM60R27U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact your
Lexus dealer or commercial to wing service before towing.
●The engine is running but the vehicle does not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or commercial towing se rvice, using a wheel-lift type truck or
flatbed truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
Situations when it is necessary to contact dealers before towing
Page 504 of 620
5047-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
Do not tow with a sling-type truck to
prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels. Use a towing dolly under the front
wheels.
Page 505 of 620
5057-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
7
When trouble arises
If your vehicle is transported by a flat-
bed truck, it should be tied down at the
locations shown in the illustration.
If you use cables or chains to tie down
your vehicle, the angles shaded in black
must be 45 .
Do not overly tighten the tie downs or
the vehicle may be damaged.
If a tow truck is not available in an emergency, your vehicle may be temporarily
towed using an elastic towing rope secu red to the emergency towing hooks. This
should only be attempted on hard surf aced roads for at most 50 miles (80 km)
at under 18 mph (30 km/h).
A driver must be in the vehicle to st eer and operate the brakes. The vehicle’s
wheels, drive train, axles, steering an d brakes must be in good condition.
Using a flatbed truck
Emergency towing
Page 506 of 620
5067-2. Steps to take in an emergency
GX460_OM_OM60R27U_(U)
Securely attach an elastic towing
rope to the towing hooks.
Take care not to damage the vehicle
body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the engine switch to IGNITION ON mode.
Set the four-wheel drive control switch in H4 and push the center differential
lock/unlock switch to unlock the center differential. (P. 340)
For models with the rear height cont rol air suspension: Change the vehicle
height to N (normal) mode and end th e vehicle height control operation.
( P. 335)
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 205
■While towing
If the engine is not running, the power assist for the brakes and steering will not function,
making steering and br aking more difficult.
Emergency towing procedure
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