2008 Lexus GX470 remote control

Maintenance and care4
305
4-1. Maintenance and care ............................... 306
Cleaning and protecting the vehicle exterior .................... 306
Cleaning and protecting the vehicle interior .................... 308 4-2. Maintenance .................... 311
Maintenance requirements.......................... 311
General maintenance ........... 313
Emission inspection and maintenance (I/M)
programs ................................ 316
4-3. Do-it-yourself maintenance ................. 317
Do-it-yourself service precautions ............................ 317
Hood .......................................... 320
Engine compartment ............ 321
Tires............................................ 336
Tire inflation pressure........... 343
Wheels ...................................... 347
Air conditioning filter ........... 349
Wireless remote control battery ................... .................. 351
Rear seat entertainment system controller ................ 353
Checking and replacing fuses ........................................ 355
Light bulbs ................................ 365

351
4-3. Do-it-yourself maintenance
4
Maintenance and care
Wireless remote control battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Small Phillips-head sc rewdriver
● Lithium battery (CR1616)
■ Replacing the battery
Remove the screw and cover.
Push the cover in the arrow
direction.
Remove the module.
Remove the 2 screws to take
out the lid.
Insert a new battery with the “+”
terminal facing up.
STEP1
STEP2
STEP3

352
4-3. Do-it-yourself maintenance
■If the battery is discharged
The following symptoms may occur.
●The wireless remote control will not function properly.
●The operational range is reduced.
■Use a CR1616 lithium battery
●Batteries can be purchased at your Lexus dealer, jewelers, or camera stores.
●Replace only with the same or equivalent type recommended by a Lexus dealer.
●Dispose of used batteries according to the local laws.
CAUTION
■Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other components inside the electronic key.
●Do not bend the battery terminals.

354
4-3. Do-it-yourself maintenance
CAUTION
■Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other components inside the remote control.
●Do not bend the battery terminals.

359
4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
25DOME10
Engine switch light, interior lights,
personal lights, foot lights, running
board lights, door courtesy lights,
inside door handle lights, trip infor-
mation display
26RADIO NO.120Audio system, navigation system
27ECU-B10
Multiplex communication system,
vehicle stability control system, wire-
less remote control system, inside
rear view mirror, air conditioning sys-
tem, electronic modulated suspen-
sion, driving position memory system,
power windows, moon roof, rear view
monitor system
28ECU-B NO.210Theft deterrent system
29ABS MTR40
Anti-lock brake system, vehicle sta-
bility control system, active traction
control system, brake assist system
30AM230Starting system, IGN, SRS, GAUGE,
ST2
31ABS SOL30
Anti-lock brake system, vehicle sta-
bility control system, active traction
control system, brake assist system
32ALT-S7. 5Charging system
33MAYDAY7. 5Lexus Link System
34HORN10Horns

436
6-2. Customization
Customizable features
ItemFunctionDefault settingCustomizedsetting
Wireless
remote con-
trol
(
P. 2 4 )
Wireless remote controlONOFF
Unlocking operation
Driver’s door
unlocked in 1-
step, all doors
unlocked
in 2-steps
All doors
unlocked in 1-step
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked
60 seconds30 seconds
Operation indicator
(Emergency flashers)ONOFF
Operation indicator
(Buzzer) ONOFF
Panic functionONOFF
Buzzer sounds when
pushing the “LOCK” but-
ton with any door not
closed.
ONOFF
Your vehicle includes a variety of elec tronic features that can be personal-
ized to your preferences. Programming these preferences requires spe-
cialized equipment and may be performed by an authorized Lexus
dealership.
Some function settings are changed simultaneously with other functions
being customized. Contact your Lexus dealer for further details.

437
6-2. Customization
6
Vehicle specifications
ItemFunctionDefault settingCustomizedsetting
Door lock (
P. 2 6 )
Unlocking using a key
Driver’s door
unlocked in 1-
step, all doors
unlocked
in 2-steps
All doors
unlocked in 1-step
Speed-detecting auto-
matic door lock functionOFFON
Opening driver’s door
unlocks all doors OFFON
Shift the shift lever to “P”
unlocks all doors.ONOFF
Shift the shift lever to posi-
tion other than “P” locks
all doors.
ONOFF
Pow e r w i n -
dows
(
P. 6 1 )
Linked door lock opera-
tionONOFF
Linked door key opera-
tionOpen and closeOpen only
Close only
Wireless remote control
linked operationONOFF

438
6-2. Customization
*: Vehicles sold outside Canada
ItemFunctionDefault settingCustomizedsetting
Moon roof
(
P. 6 4 )
Linked door lock opera-
tionONOFF
Linked door key opera-
tionOpen and closeOpen only
Close only
Linked operation of com-
ponents when door key is
used
Slide onlyTilt only
Wireless remote control
linked operationONOFF
Linked operation of com-
ponents when wireless
remote control used
Slide onlyTilt only
Automatic
light control
system
(
P. 1 3 5 )
Light sensor sensitivityLevel 3Levels 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 seconds
60 seconds
90 seconds
Daytime running lightONOFF*
Illumination
(
P. 2 5 6 )
Time elapsed before lights
turn off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the
doors are unlockedONOFF
Operation after the
engine switch is turned to
the “ACC” position
ONOFF