Page 450 of 624
448
GX 460 _O M_ OM6 0K 80 U_ (U)6-3. Do-it-yourself maintenance
Headlight aim
(
→ P. 484)• Phillips-head screwdriver
Light bulbs
(→ P. 4 8 6 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Power steering fluid
level ( →P. 4 5 9 )• Automatic transmission fluid DEXRON® II or III
• Rag or paper towel•Clean funnel
Radiator and con-
denser ( →P. 4 5 7 )
Tire inflation pres-
sure ( →P. 4 7 1 )• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
(→ P. 4 6 3 )• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsParts and tools
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454
GX 460 _O M_ OM6 0K 80 U_ (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 direct ly 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
Engine oil selection→ P. 5 5 6
Oil quantity (Low → Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
1
2
3
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468
GX 460 _O M_ OM6 0K 80 U_ (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.
• Lock nuts 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 which can interf ere 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
●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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497
GX 460 _O M_ OM6 0K 80 U_ (U)
7When trouble arises
7-1. Essential informationEmergency flashers .................. 498
If your vehicle has to be stopped in an emergency .... 499
7-2. Steps to take in an emergency If your vehicle needs to be towed ............................... 500
If you think something is wrong .......................................... 505
Fuel pump shut off system ......506
If a warning light turns on or a warning buzzer
sounds.......................................... 507
If a warning message is displayed...................................... 514
If you have a flat tire................... 527
If the engine will not start ........540
If the shift lever cannot be shifted from P............................ 542
If the electronic key does not operate properly ............. 543
If the vehicle battery is discharged ................................. 545
If your vehicle overheats .........548
If the vehicle becomes stuck .............................................. 551
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500
GX 460 _O M_ OM6 0K 80 U_ (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 before towing.
●The engine is running but the vehicle will not move.
●The vehicle makes an abnormal sound.
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 surfaced roads for short distances at low
speeds.
A driver must be in the vehicle to steer and operate the brakes. The vehicle’s
wheels, drive train, axles, steering and brakes must be in good condition.
XTowing hook
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towing , and abide by all state/provincial and
local laws.
Before towing
Emergency towing
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5017-2. Steps to take in an emergency
GX 460 _O M_ OM6 0K 80 U_ (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
XFrom the front XFrom the rear
Use a towing dolly under the rear
wheels. Use a towing dolly under the front
wheels.
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Page 504 of 624
5027-2. Steps to take in an emergency
GX 460 _O M_ OM6 0K 80 U_ (U)
If your Lexus is transported by a flat bed
truck, it should be tied down at the
locations shown in the illustration.
If you use chains or cables 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.
■Before emergency towing The engine switch must be in the ACCESSORY mode (engine off) or IGNITION ON
mode (engine running).
Put the four-wheel drive control switch in H4 and push the center differential lock/
unlock switch to unlock the center differential. ( →P. 3 3 2 )
Vehicles with the rear height control air suspension: Put the vehicle height in the N
mode and press the height control OFF button to turn off the rear height control air
suspension. ( →P. 3 2 7 )
Shift the shift lever in N.
Release the parking brake.
Using a flat bed truck
1
2
3
4
5
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5037-2. Steps to take in an emergency
GX 460 _O M_ OM6 0K 80 U_ (U)
7
When trouble arises
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive stress on the
emergency towing hook and the elastic towing rope. Always be cautious of the sur-
roundings and other vehicles while towing.
●Do not turn the engine switch off.
Doing so will lock the steerin g wheel and prevent operatio n, possibly causing an acci-
dent and resulting in death or serious injury.
●If the engine is not running, the power assi st for the brakes and steering will not func-
tion, making steering and braking more difficult.
GX460_OM_OM60K80U_(U).book Page 503 Wednesday, July 3, 2013 11:40 AM