2012 Lexus GX460 ignition

552
3-7. Other interior features
GX460_U.S.A. (OM60J00U)
■The seat heaters/ventilators can be used when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■When not in use
Turn the dial until the indicator light turns off.
■Outer second seat heaters (if equipped)
For left second seat
For right second seat
High heating temperature
Low heating temperature
To turn on the seat heater, press
“HI” or “LO”.
The indicator light on “HI” or
“LO” switch indicates that the
seat heater is on.
Off
To turn off, press “OFF”.

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3-7. Other interior features
3
Interior features
GX460_U.S.A. (OM60J00U)
Safety Connect LED light IndicatorsWhen the “ENGINE START STOP” switch is turned to IGNITION ON
mode, the red indicator light comes on for 2 seconds then turns off.
Afterward, the green indicator light comes on, indicating that the service
is active.
The following indicator light patterns indicate specific system usage con-
ditions:
● Green indicator light on = Active service
● Green indicator light flashing = Safety Connect call in process
● Red indicator light (except at vehicle start-up) = System malfunction
(contact your Lexus dealer)
● No indicator light (off) = Safety Connect service not active
Safety Connect services
■ Automatic Collis ion Notification
In case of either airbag deployment or severe rear-end collision, the
system is designed to automatically call the response center. The
responding agent receives the vehicle’s location and attempts to speak
with the vehicle occupants to assess the level of emergency. If the
occupants are unable to communicate, the agent automatically treats
the call as an emergency, contacts the nearest emergency services
provider to describe the situation, an d requests that assistance be sent
to the location.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions:
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
■When working near the electric cooling fans or radiator grille:
Be sure the “ENGINE START STOP” switch is off.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fans may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (→P. 6 1 8 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in your eyes.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
■After changing the engine oil (U.S.A. only)
The engine oil maintenance data should be reset. Perform the following proce-
dures:Press the Menu switch ( →P. 212) to change the multi-information display
to blank.
Turn the “ENGINE START STOP” switch off.
While pressing the ODO/TRIP button ( →P. 195), turn the “ENGINE
START STOP” switch to IGNITION ON mode.
Continue to press and hold the button for more than 7 seconds after the
“ENGINE START STOP” switch is turned to IGNITION ON mode.
STEP1
STEP2
STEP3
STEP4
The message shown in the illustration will
appear on the display. After 5 seconds, the
system reset will be completed.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
6SUB BATT30 ATo w i n g
7IG220 AInjector, ignition, meter
8HORN10 AHorn
9EFI25 AEFI ECU, A/F heater relay, fuel pump
relay, EFI NO.2
10A/F20 AA/F SSR
11FUEL OPN 10 AFuel lid opener
12S/HTR RR20 ARear seat heater
13FOLD SEAT LH30 AFolding seat (left)
14FOLD SEAT RH30 AFolding seat (right)
15TOW I N G TA I L30 ATo w i n g
16A/C COMP10 AAir conditioning system
17STRG HTR 10 ASteering heater
18CDS FAN20 ACondenser fan
19STOP10 A
Stop lights, high mount stop light, stop
light switch, VSC ECU, towing, Smart
access system with push button start
20AIR SUS NO.27. 5 AAIR SUS ECU
21H-LP RH-HI15 AHeadlight high beam (right)
22H-LP LH-HI15 AHeadlight high beam (left)
FuseAmpereCircuit

652
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
23HTR50 AAir conditioning system
24WIP WSH RR30 ARear window wipers and washer
25H-LP CLN30 AHeadlight cleaner
26ST30 ASTARTER MTR
27H-LP HI25 ADIM relay, headlights, daytime run-
ning light system
28ALT-S7. 5 AALT
29TURN & HAZ15 A
Front turn signal light, rear turn signal
light, side turn signal light, meter turn
signal light
30D/ L N O.125 ADoor lock motor, glass hatch opener
31ETCS10 AEFI ECU
32FUEL PMP15 AFPC
33TOW I N G30 ATo w i n g
34ALT140 A
Air conditioning system, AIR SUS,
headlight cleaner, towing, folding seat,
STOP, rear window defogger, MIR
HTR, CDS FAN, RR FOG, DEICER,
MG-CLT, RR SEAT HTR, STRG HTR,
J/B, INV, RR WIP, RR WSH
35P/ I - B80 AInjector, ignition, meter, EFI, A/F
heater, horn
FuseAmpereCircuit

654
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)
50ECU-B10 A
BODY ECU, meter, heater, steering
sensor, wireless remote control, seat
position memory, tilt and telescopic
steering, multi display, Smart access
system with push button start, folding
seat, cool box, DSS#2 ECU, steering
switch, D-module switch, overhead
module
51WSH FR NO.27. 5 ADSS#1 ECU
52H-LP RH-LO15 AHeadlight low beam (right), headlight
leveling system
53H-LP LH-LO15 AHeadlight low beam (left), headlight
leveling system
54INJ10 ACoil, injector, ignition, noise filter
55EFI NO.210 A
O2 SSR, AFM, ACIS VSV, AI
COMB, KEY OFF PUMP, EYP VSV,
EGR VALVE, CANISTER VSV, AI
VSV RLY, AI PUMP HTR RLY
56WIP FR NO.27. 5 ADSS#1 ECU
57WSH RR15 ARear window washer
58SPARESpare fuse
59SPARESpare fuse
60SPARESpare fuse
FuseAmpereCircuit

5
When trouble arises
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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