2006 Lexus GS430 stop start

DRIVING TIPS
456
BREAKIN PERIOD
Drive gently and avoid high speeds.
You need not follow a break−in schedule with your new Lexus.
But following a few simple tips for the first 1600 km (1000 miles)
can add to the future economy and long life of your vehicle:
 Avoid full throttle acceleration when starting and driving.
 Avoid racing the engine.
 Try to avoid hard stops during the first 300 km (200 miles).
 Do not drive for a long time at any single speed, either fast
or slow.
OPERATION IN FOREIGN
COUNTRIES
If you plan to drive your Lexus in another country ...
First, comply with the vehicle registration laws.
Second, confirm the availability of the correct fuel (unleaded
and minimum octane rating).
TIPS FOR DRIVING IN VARIOUS CONDITIONS
Always slow down in gusty crosswinds. This will allow you
much better control.
 Drive slowly onto curbs and, if possible, at a right angle.
Avoid driving onto high, sharp −edged objects and other
road hazards. Failure to do so can lead to severe tire
damage such as a tire burst.
Drive slowly when passing over bumps or travelling on a
bumpy road. Otherwise, the impact could cause severe
damage to the tires and/or wheels.
 When parking on a hill, turn the front wheels until they touch
the curb so that the vehicle will not roll. Apply the parking
brake, and place the transmission in ”P”. If necessary, block
the wheels.
 Washing your vehicle or driving through deep water may get
the brakes wet. To see whether they are wet, check that
there is no traffic near you and then press the pedal lightly.
If you do not feel a normal braking force, the brakes are
probably wet. To dry them, drive the vehicle cautiously while
lightly pressing the brake pedal with the parking brake
applied. If they still do not work safel y, pull to the side of the
road and call a Lexus dealer for assistance.

IN CASE OF AN EMERGENCY
469
NOTICE
Do not pull or pushstart the vehicle. It may damage
the vehicle or cause a collision when the engine starts.
Also the threeway catalytic converter may overheat
and become a fire hazard.
If the engine turns over at its normal speed but will not
start
1. The engine may be flooded because of repeated cranking.
See ”(b) Starting a flooded engine” for further instructions.
2. If the engine still will not start, it needs adjustment or repair.
Call a Lexus dealer, Roadside Assistance or Customer
Service Assistance. (See ”Foreword”.)
(b) Starting a flooded engine
If the engine will not start, your engine may be flooded
because of repeated cranking.
If this happens, push the engine switch while the brake pedal
is depressed with your left foot and the accelerator pedal is
depressed with your right foot. Then the cranking hold function
stops automatically, and you can try starting the engine with
your foot off the accelerator pedal.
If the engine does not start, wait a few minutes and try again.
If the engine still will not start, it needs adjustment or repair.
Call a Lexus dealer, Roadside Assistance or Customer
Service Assistance. (See ”Foreword”.)
(c) Jump starting
To avoid serious personal injury and damage to your
vehicle which might result from battery explosion, acid
burns, electrical burns, or damaged electronic
components, these instructions must be followed
precisely.
If you are unsure about how to follow this procedure, we
strongly recommend that you seek help from your Lexus
dealer, Roadside Assistance or Customer Service Assistance.
(See ”Foreword”.)
CAUTION
 Batteries contain sulfuric acid which is poisonous
and corrosive. Wear protective safety glasses when
jump starting, and avoid spilling acid on your skin,
clothing, or vehicle.
 If you should accidentally get acid on yourself or in
your eyes, remove any contaminated clothing and
flush the affected area with water immediately. Then
get immediate medical attention. If possible,
continue to apply water with a sponge or cloth while
en route to the medical office.
 The gas normally produced by a battery will explode
if a flame or spark is brought near. Use only
standardized jumper cables and do not smoke or
light a match while jump starting.

IN CASE OF AN EMERGENCY
473
IF YOU CANNOT INCREASEENGINE SPEED
If engine speed does not increase when the accelerator
pedal is depressed, there may be a problem somewhere
in the electronic throttle control system. Move the vehicle
to a safe place by means of creeping and call a Lexus
dealer for assistance:
1. Depress the brake pedal and shift to the “D” position.
2. Gradually release the brake pedal, and the vehicle starts to
move by creeping. After arriving at a safe place, stop the
vehicle and call a Lexus dealer for assistance.
CAUTION
 The above method of moving the vehicle is for
emergency. Use it only for moving minimum
distances to a safe place.
 Be especially careful to prevent erroneous pedal
operation.
IF YOUR VEHICLE OVERHEATS
If your engine coolant temperature gauge indicates
overheating, if you experience a loss of power, or if you
hear a loud knocking or pinging noise, the engine has
probably overheated.
When the engine overheats
Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in ”P” and apply the
parking brake.
A: If steam is coming from your engine:
Turn off the engine. Leave the hood closed until there is no sign
of steam or coolant. Your engine could have been seriously
damaged already. Call your Lexus dealer for assistance.
CAUTION
To help avoid personal injury, keep the hood closed until
there is no steam. Escaping steam or coolant is sign of
very high pressure.

IN CASE OF AN EMERGENCY
476
IF YOU HAVE A FLAT TIRE
(Vehicles with standard tires)
CAUTION
If the tire pressure warning light comes on,
observe the following instructions:
 Decelerate as soon as possible to the most
appropriate speed that conditions permit.
 Avoid abrupt steering wheel maneuvering and
braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the
brakes, causing death or serious injury.
 The warning system may not activate
immediately if bursts or sudden air leakage
should occur.
1. Reduce your speed gradually, keeping a straight line.
Move cautiously off the road to a safe place − well away
from the traffic. Avoid stopping on the center divider of
a highway. Park on a level spot with firm ground.
2. Stop the engine and turn on your emergency flashers.
3. Firmly set the parking brake and put the transmission
in ”P”.
4. Have everyone get out of the vehicle on the side away
from traffic. 5. Read the following instructions thoroughly.
CAUTION
When jacking, be
sure to observe the following to
reduce the possibility of personal injury:
 Follow jacking instructions.
 Do not put any part of your body under a vehicle
supported by a jack. Otherwise, personal injury
may occur.
 Do not start or run the engine while your vehicle
is supported by the jack.
 Stop the vehicle on a level firm ground, firmly
set the parking brake and put the transmission
in ”P”. Block the wheel diagonally opposite to
the one being changed if necessary.
 Make sure to set the jack properly in the jack
point. Raising the vehicle with jack improperly
positioned will damage the vehicle or may allow
the vehicle to fall off the jack and cause
personal injury.
 Never get under the vehicle when the vehicle is
supported by the jack alone.

INTRODUCTION
515
POSITIONING THE JACK
G61006
Front
G61007
Rear
When jacking up your vehicle with the jack, position the
jack correctly as shown in the illustrations.
CAUTION
When jacking, be sure to observe the following to re-
duce the possibility of personal injury:
 Follow jacking instructions.
 Do not put any part of your body under the vehicle
supported by the jack. Personal injury may occur.
 Do not start or run the engine while your vehicle is
supported by the jack.
 Stop the vehicle on a level firm ground, firmly set the
parking brake and put the transmission in “P” posi-
tion.
 Make sure to set the jack properly in the jack point.
Raising the vehicle with jack improperly positioned
will damage the vehicle or may allow the vehicle to fall
off the jack and cause personal injury.
 Never get under the vehicle when the vehicle is sup-
ported by the jack alone; use vehicle support stands.
 Do not raise the vehicle with someone in the vehicle.
 When raising the vehicle, do not place any objects on
top of or underneath the jack.
NOTICE
Make sure to place the jack correctly, or your vehicle
may be damaged.

ENGINE
528
FUEL PUMP SHUT OFF SYSTEM
The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the engine
switch off once and start it.
CAUTION
Inspect the ground under the vehicle before restarting
the engine. If you find that liquid has leaked onto the
ground, it is the fuel system that has been damaged and
it is in need of repair. In this case, do not restart the
engine.
FACTS ABOUT ENGINE OILCONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling
the inside of the engine, and plays a major role in maintaining
the engine in proper working order.
Engine oil consumption
It is normal that an engine should consume some engine
oil during normal engine operation. The causes of oil
consumption in a normal engine are as follows.
Oil is used to lubricate pistons, piston rings and cylinders.
A thin film of oil is left on the cylinder wall when a piston
moves downwards in the cylinder. High negative pressure
generated when the vehicle is decelerating sucks some of
this oil into the combustion chamber. This oil as well as
some part of the oil film left on the cylinder wall is burned by
the high temperature combustion gases during the
combustion process.
 Oil is also used to lubricate the stems of the intake valves.
Some of this oil is sucked into the combustion chamber
together with the intake air and is burned along with the fuel.
High temperature exhaust gases also burn the oil used to
lubricate the exhaust valve stems.

ELECTRICAL COMPONENTS
576
No.FUSEAMPERECIRCUIT
1 STR LOCK25Steering lock system
2 SECURITY7.5Smart access system with
push−button start
3 TI &TE20Power tilt and telescopic
steering wheel, Multiplex
communication system
4 AM17.5Starting system
5 STOP SW7.5
Stop/tail lights, Multi− port fuel
injection system/sequential
multiport fuel injection system,
Starting system, Electronic
control brake system, Vehicle
stability control system, Shift
lock system
6 OBD7.5On− board diagnosis system
7 FR P/SEAT
RH30Power seat system
8 AIR SUS20Adaptive variable suspension
system
9 PWR
OUTLET15Power outlet
10 CIG15Cigarette lighter
11 ACC7.5
Multiplex communication
system, Smart access system
with push− button start, Rear
view monitor system, Audio
system, Air conditioning system
No.FUSEAMPERECIRCUIT
12 IGN10
Multi− port fuel injection
system/sequential multiport fuel
injection system, SRS airbag
system, Stop/tail lights,
Steering lock system, Electronic
control brake system
13 GAUGE7.5Gauges and meters
14 ECUIG
RH10
Power tilt and telescopic
steering wheel, Multiplex
communication system, Smart
access system with
push −button start, Audio
system, Air conditioning
system, Shift lock system, Tire
pressure warning system,
Combination switch
15 FR S/HTR
RH15Seat heater, Heated and
ventilated seats
16 RHIG7.5
Seat heater switches, Front
right door control system, Rear
right door control system,
Capacitor, Combination switch,
Seat belt pretensioners,
Intuitive parking assist
17 AM215Starting system

ELECTRICAL COMPONENTS
579
No.FUSEAMPERECIRCUIT
47 ABS
MAIN110Capacitor
48 E/GB60“FR CTRL BATT”, “ETCS” and
“ALT−S”
49 ABS150Vehicle stability control system,
“ABS MAIN1”, “ABS MAIN2”
and “ABS MTR”
50 RH J/BB30“AM2”, “DOOR FR” and “DOOR
RR”
51 VGRS40Variable gear ratio steering
system
52 MAIN30“H− LP R LWR” and “H −LP L
LWR”
53 STARTER30Starting system
54 LH J/BB30“FL DOOR”, “RL DOOR” and
“RAD No.3”
55 P/IB60Multi− port fuel injection
system/sequential multiport fuel
injection system
56 EPS80Electronic power steering
system
57 ALT150
“RH J/B− AM”, “LH J/B −AM”,
“E/G− AM”, “RR JB”, “HEATER”,
“DEFOG”, “FAN1”, “FAN2”,
“ABS2”, “ABS MOTOR”, “ABS
MAIN1”, and “ABS MAIN2”
No.FUSEAMPERECIRCUIT
58 RR J/B80
“STOP LP R”, “STOP LP L”,
“RR− B”, “RR TAIL”, “RR FOG”,
“RR− IG1”, “PSB”, and “RR
S/SHADE”
59 GLW PLG150Glow plug heater
60 RH J/BAM80
“AM1”, “OBD”, “STOP SW”, “TI
&TE”, “PWR OUTLET”, “FR
P/SEAT RH”, “STR LOCK”,
“ECU− IG RH”, “RH− IG”, “ACC”,
“CIG”, “SECURITY”, “FR
S/HTR RH”, and “AIR SUS”
61 ABS230Vehicle stability control system,
Anti− lock brake system
62 DEFOG50Rear window defogger, Noise
filter
63 FAN140Electric cooling fans
64 HEATER50Air conditioning system
65 GLW PLG250Glow plug heater
66 E/GAM60“H−LMP CLN”, “FR CTRL −AM”
and “A/C COMP”
67 LH J/
BAM80
“S/ROOF”, “FR P/SEAT LH”,
“TV”, “FR S/HTR LH”, “ECU− IG
LH”, “FR WIP”, “H −LP LVL”,
“LH− IG”, “FUEL OPEN”, “A/C”,
“PANEL”, and “LH− B”
68 FAN260No circuit
69 FR
CTRLB25“H− LP UPR” and “HORN”