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666
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
30IGN10 A
EFI ECU, C/OPN RLY, VSC ECU, air
bag ECU, smart entry & start system,
steering lock ECU, CAN gateway
ECU
31GAUGE7. 5 AMeter
32PA N E L7. 5 A
Switch illumination, glove box light,
cup holder lights, auxiliary box light,
navigation system, audio system, air
conditioning system, outside rear view
mirror switch, folding seat switch,
multi-information display, P/SEAT
IND, SHIFT, COOL BOX
33TA I L10 A
Front position lights, tail lights, license
plate lights, EFI ECU, rear fog lights,
towing, front fog lights
FuseAmpereCircuit
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When trouble arises
685
5-1. Essential information
GX460_OM_OM60J63U_(U)
If your vehicle needs to be towed
Before towingThe 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 towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing se rvice, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towi ng, and abide by all state/provincial
and local laws.
The wheels and axle on the ground must be in good condition.
If they are damaged, use a to wing dolly or flat bed truck.
Page 686 of 844
686
5-1. Essential information
GX460_OM_OM60J63U_(U)
Emergency towingIf a tow truck is not available in an emergency, your vehicle may be tem-
porarily towed using a cable or chain secured to the emergency towing
hooks. This should only attempted on hard surfaced roads for short dis-
tances at low speeds.
A driver must be in the vehicle to s teer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steering and brakes must be in good condi-
tion.
Towing hook
Page 687 of 844
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When trouble arises
687
5-1. Essential information
GX460_OM_OM60J63U_(U)
Towing with a sling-type truckDo not tow with a sling type truck
to prevent body damage.
Towing with a wheel lift-type truckFrom front Use a towing dolly under the rear
wheels.
From rear Use a towing dolly under the front
wheels.
Page 689 of 844

5
When trouble arises
689
5-1. Essential information
GX460_OM_OM60J63U_(U)
■Before emergency towingThe “ENGINE START STOP” switch must be in the ACCESSORY mode
(engine off) or IGNITION ON mode (engine running).
Put the four-wheel drive control switch in H4. (The center differential is
unlocked.)
Put the vehicle height in the N mode and press height control switch to
turn off the rear height control air suspension.
Shift the shift lever in N.
Release the parking brake.
CAUTION
■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 eyelets and the cables or chains. Always be cautious of the
surroundings and other vehicles while towing.
●Do not turn the “ENGINE START STOP” switch off.
Doing so will lock the steering wheel and prevent operation, possibly causing an
accident and result ing in death or serious injury.
●If the engine is not running, the power assi st for the brakes and steering will not
function, making steering and braking more difficult.
STEP1
STEP2
STEP3
STEP4
STEP5
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690
5-1. Essential information
GX460_OM_OM60J63U_(U)
NOTICE
■To prevent causing serious damage to the transmission and transfer when towing
using a wheel-lift type truck
Never tow this vehicle with any of the wheels in contact with the ground.
■To avoid serious damage to your vehicle
■]To prevent damage to the vehicle when towing using a wheel-lift type truck
When raising the vehicle, ensure adequa te ground clearance for towing at the
opposite end of the raised vehicle. Without adequate clearance, the vehicle could
be damaged while being towed.
■To prevent body damage when to wing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent causing serious damage to th e transmission and transfer in emer-
gency towing
Never tow a vehicle from the rear with four wheels on the ground. This may cause
serious damage to the transmission.
Do not use the rear emergency towing hook.
Page 736 of 844
736
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)Firmly tighten each nut two or
three times in the order shown in
the illustration.
Tightening torque:
83 ft•lbf (112 N•m, 11.4 kgf•m)
Reinstall the wheel ornament.
Stowing the flat/spare tire, jack and tools
Lay down the tire with the outer
side facing up, and install the hold-
ing bracket.
Insert the holding bracket tab into
one of the holes in the wheel.
Raise the tire.
Pull the tire towards the rear of the vehicle when raising. After
raising, visually check that the tire is not interfering with suspen-
sion components.
Stow the tools and jack securely, and replace all covers.
STEP4
STEP5
STEP1
STEP5STEP2
STEP5STEP3
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739
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel
beyond repair.
■When stowing the flat tire
●Ensure that there is no object caught between the tire and the vehicle underbody.
●To avoid damaging the suspension system, make sure that the spare tire does not
interfere with the suspension components when stowed.
■When replacing the tires
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified service shop as so on as possible. Make sure to replace the
tire pressure warning valve and transmitter when replacing the tire. ( P. 6 3 7 )