tow Lexus GX460 2012 Repair Manual

653
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
36RAD NO.115 AAudio system, navigation system, rear
seat entertainment system
37AM27. 5 AStarter system
38RAD NO.210 ANavigation system
39MAYDAY7. 5 AMAYDAY
40AMP30 AAudio system
41ABS NO.150 AABS, VSC
42ABS NO.230 AABS, VSC
43AIR PMP50 AAir pump
44SECURITY10 ASECURITY
45SMART7. 5 ASmart access system with push button
start
46STRG LOCK20 ASteering lock system
47TOW I N G B R K30 ATo w i n g
48WIP RR15 ARear window wiper
49DOME10 A
Interior lights, personal lights, vanity
lights, door courtesy lights, footwell
lights, outer foot lights, overhead
module
FuseAmpereCircuit

655
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)Under the instrument panel
FuseAmpereCircuit
1P/O U T L E T15 APo w e r o u t l e t
2ACC7. 5 A
Outside rear view mirror motor,
BODY ECU, air conditioning system,
audio system, navigation system,
parking assist system, back up relay,
DSS#2 ECU, AT indicator, EFI ECU,
shift lock ECU, DCM, MAYDAY
ECU
3BKUP LP10 A
Back-up lights, audio system, multi
information display, DSS#2 ECU,
parking assist sensor
4TOW I N G B K L P10 ATo w i n g
5AV S20 AAir suspension system
6KDSS10 AKDSS ECU

658
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
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

When trouble arises5
675
GX460_U.S.A. (OM60J00U)
5-1. Essential informationEmergency flashers................ 676
If your vehicle needs to be towed ............................ 677
If you think something is wrong ..................................... 683
Fuel pump shut off system.... 684
Event data recorder .............. 685 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds..................................... 688
If a warning message is displayed................................ 700
If you have a flat tire................. 721
If the engine will not start .... 735
If the shift lever cannot be shifted from P ........................ 737
If you lose your keys .............. 738
If the electronic key does not operate properly.......... 739
If the vehicle battery is discharged .............................. 741
If your vehicle overheats ...... 744
If the vehicle becomes stuck......................................... 747
If your vehicle has to be stopped in an emergency ................... 749

5
When trouble arises
677
5-1. Essential information
GX460_U.S.A. (OM60J00U)
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 towing, 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 towing dolly or flat bed truck.

678
5-1. Essential information
GX460_U.S.A. (OM60J00U)
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 steer and operate the brakes. The vehi-
cle’s wheels, drive train, axles, steer ing and brakes must be in good condi-
tion.
To w i n g h o o k

5
When trouble arises
679
5-1. Essential information
GX460_U.S.A. (OM60J00U)
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.

5
When trouble arises
681
5-1. Essential information
GX460_U.S.A. (OM60J00U)
■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 an d prevent operation, possibly causing an
accident and resulting in death or serious injury.
●If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
STEP1
STEP2
STEP3
STEP4
STEP5

682
5-1. Essential information
GX460_U.S.A. (OM60J00U)
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 adequate 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 towing 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 the 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.

5
When trouble arises
725
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
1Insert the jack handle extension
into the lowering socket.Lower
Raise
Place a rag under the jack handle
extension to protect the bumper.
Lower the spare tire completely to
the ground.
If the spare tire becomes caught on the suspension components, raise the
tire, pull it towards the rear of the vehicle, and begin lowering it again. Pull out the spare tire and remove
the holding bracket.
STEP3
STEP4
STEP5