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452
GX460_OM_OM60M73U_(U)6-3. Do-it-yourself maintenance
Headlight aim
(
P. 4 8 9 )• Phillips-head screwdriver
Light bulbs
( P. 4 9 1 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Power steering fluid
level ( P. 4 6 3 )• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel•Clean funnel
Radiator and con-
denser ( P. 4 6 1 )
Tire inflation pres-
sure ( P. 4 76 )• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
( P. 4 6 7 )• Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsPa r t s a n d t o o l s
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458
GX460_OM_OM60M73U_(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 consum ed while driving. In the following situations,
oil consumption may increase, and engine o il 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 de celerating frequently
●When leaving the engine idling for a long time, or when driving frequently through
heavy traffic
Engine oil selection P. 5 6 4
Oil quantity (Low Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
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2
3
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GX460_OM_OM60M73U_(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 tires 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 the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If the spare tire is in a location subject to poor radio wave signal reception.
• If a large metallic object wh ich 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 th at generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●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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501
GX460_OM_OM60M73U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers ..................502
If your vehicle has to be stopped in
an emergency...........................503
7-2. Steps to take in an emergency If your vehicle needs to be towed ................................504
If you think something is wrong ............................................ 510
Fuel pump shut off system ......... 511
If a warning light turns on or a warning buzzer
sounds........................................... 512
If a warning message is displayed..................................... 520
If you have a flat tire...................534
If the engine will not start ........ 547
If the shift lever cannot be shifted from P............................ 549
If the electronic key does not operate properly .............550
If the vehicle battery is discharged ................................. 553
If your vehicle overheats ......... 556
If the vehicle becomes stuck ............................................. 559
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504
GX460_OM_OM60M73U_(U)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 towing 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 505 of 632
5057-2. Steps to take in an emergency
GX460_OM_OM60M73U_(U)
7
When trouble arises
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 506 of 632
5067-2. Steps to take in an emergency
GX460_OM_OM60M73U_(U)
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 secured 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 steer 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 507 of 632
5077-2. Steps to take in an emergency
GX460_OM_OM60M73U_(U)
7
When trouble arises
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 th e 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. 3 3 6 )
For models with the rear height control air suspension: Change the vehicle
height to N (normal) mode and end th e vehicle height control operation.
( P. 3 3 1 )
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: P. 5 4 9
■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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3
4
5