Start with key Lexus GX460 2012 Owner's Guide

645
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
■Use a CR1632 lithium battery
●Batteries can be purchased at your Lexus dealer, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manufac-
turer.
●Dispose of used batteries according to the local laws.
■If the electronic key battery is discharged
The following symptoms may occur.
●The smart access system with push-button start and wireless remote control will
not function properly.
●The operational range is reduced.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP3

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

712
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Sounds
onceSounds
once
(Displayed alternately)(Flashes)
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors
without first turn-
ing the “ENGINE
START STOP”
switch off.
Tu r n t h e
“ENGINE START
STOP” switch off
and lock the
doors again.
Sounds
once
(Flashes)
An attempt was
made to start the
engine without
the electronic key
being present, or
the electronic key
was not function-
ing normally.
An attempt was
made to drive
when the regular
key was not inside
the vehicle.
Confirm that the
electronic key is
inside the vehicle.
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection
procedure

714
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Sounds
onceCon-
tinuous
(Flashes)
An attempt was
made to lock the
doors using the
smart access sys-
tem with push-
button start while
the electronic key
was still inside the
vehicle.
Retrieve the elec-
tronic key from
the vehicle and
lock the doors
again.An attempt was
made to lock
either front door
by opening a door
and putting the
inside lock button
into the lock posi-
tion, then closing
the door by pull-
ing on the outside
door handle with
the electronic key
still inside the
vehicle.
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
715
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Sounds
once
(Flashes)
• When the doors were unlocked
with the
mechanical key
and then the
“ENGINE
START STOP”
switch was
pressed, the
electronic key
could not be
detected in the
vehicle.
• The electronic
key could not be
detected in the
vehicle even
after the
“ENGINE
START STOP”
switch was
pressed two
consecutive
times.
Touch the elec-
tronic key to the
“ENGINE START
STOP” switch
while depressing
the brake pedal.
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure

718
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Sounds
once
(Flashes)
The driver’s door
was opened and
closed with the
“ENGINE START
STOP” switch
turned off and
then the
“ENGINE START
STOP” switch was
put in ACCES-
SORY mode
twice without the
engine being
started.
Press the
“ENGINE START
STOP” switch
while depressing
the brake pedal.
During an engine
starting proce-
dure in the event
that the elec-
tronic key was not
functioning prop-
erly (→P. 7 3 9 ) ,
the “ENGINE
START STOP”
switch was
touched with the
electronic key.
Press the
“ENGINE START
STOP” switch
within 10 seconds
of the buzzer
sounding.
Interior
buzzerExterior buzzerWarning messageDetailsCorrection
procedure

5
When trouble arises
739
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Use the mechanical key ( →P. 2 6 )
in order to perform the following
operations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)
*
*
: This setting must be customized at your Lexus dealer.
If communication between the electronic key and vehicle is interrupted
(→ P. 39) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened or
the engine can be started by following the procedure below.

740
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
Changing “ENGINE START STOP” switch modes and starting the engine
Ensure that the shift lever is in P and depress the brake pedal.Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
To change “ENGINE START ST OP” switch modes: Within 10
seconds of the buzzer sounding, release the brake pedal and
press the “ENGINE START STOP” switch. Modes can be
changed each time the switch is pressed. ( →P. 1 8 1 )
To start the engine: Press the “ENGINE START STOP” switch
within 10 seconds of the buzzer sounding, keeping the brake
pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be oper-
ated, contact your Lexus dealer.
STEP1
STEP2
■Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
( → P. 6 4 4 )
STEP3

788
6-2. Customization
GX460_U.S.A. (OM60J00U)
Smart
access sys-
tem with
push-but-
ton start
and wire-
less remote
control
(
→P. 2 9 ,
47)
AUTO.
RELOCK TIME
ADJUSTMENT
(Adjust the time
elapsed before
the automatic
door lock func-
tion is activated
if a door is not
opened after
being unlocked)
60 seconds
Off
O–OO30 seconds
120 seconds
Open door
reminder
buzzer (When
locking the
vehicle)
OnOff–––O
Glass hatch
opening opera-
tion (When the
electronic key is
used)
Push and
hold (Short)
Push twice
–––O
One short push
Push and
hold (Long)
Off
ItemFunctionDefault settingCustomized setting

789
6-2. Customization
6
Vehicle specifications
GX460_U.S.A. (OM60J00U)
Smart
access
system with
push-
button start
(
→P. 2 9 )
SELECT
DOORS TO
UNLOCK
(The doors that
are unlocked
using the smart
access system
with push but-
ton start can be
selected)
Driver’s doorAll the doorsO–OO
ACCESS SYS-
TEM WITH
ELEC. KEY
(Smart access
system with
push button
start can be dis-
abled)
OnOffO–OO
ItemFunctionDefault settingCustomized setting