Page 562 of 830
561
GS350_U (OM30C34U)5-7. Other interior features
5
Interior features
Sun visors and vanity mirrors
To set the visor in the forward
position, flip it down.
To set the visor in the side posi-
tion, flip down, unhook, and swing
it to the side.
To use the side extender, place
the visor in the side position, then
slide it backward.
Slide the cover to open.
The light turns on when the cover is
opened.
Sun visors
1
2
3
Va n i t y m i r r o r s
NOTICE
■To prevent battery discharge
Do not leave the vanity lights on for extended periods while the engine is off.
Page 569 of 830
568
GS350_U (OM30C34U)
5-7. Other interior features
Seat heaters∗/s e a t v e n t i l a t o r s∗
■Front seats
Turns the seat heater onHi
Mid
Lo
Off
The indicator light (yellow) on the
switch and the level indicator lights
(green) come on.
■Rear seats (if equipped)
Turns the seat heater onHi
Mid
Lo
Off
The level indicator lights (yellow)
come on.
∗: If equipped
The seat heaters and ventilators heat the seats and maintain good air-
flow by blowing air from the seats.
Seat heaters
1
2
13
4
1
2
13
4
Page 570 of 830

GS350_U (OM30C34U)
5695-7. Other interior features
5
Interior features
Blows air from the seatHi
Mid
Lo
Off
The indicator light (green) on the
switch and the level indicator lights
(green) come on.
■The seat heaters/seat ventilators can be used when
The engine switch is in IGNITION ON mode.
■The seat heater timer control
The seat heater automatically switches from Hi → Mid → Lo → Off. The switching
timing differs depending on the temperature inside the cabin etc. when the seat
heater was operated.
■Automatic operation of the seat heater during Eco drive mode
If the driving mode select switch is switched to Eco drive mode in cold temperatures,
the seat heater may be automatically operated to assist heating performance.
■Button lock function (vehicles with rear control panel)
To prevent inadvertent operation, some buttons on the rear armrest can be locked.
( → P. 3 6 4 )
■Rear control panel illumination off function (vehicles with rear control panel)
Control panel illumination on the rear armrest can be turned off. ( →P. 3 6 4 )
Seat ventilators (front seats only)
1
2
13
4
Page 736 of 830

735
GS350_U (OM30C34U)
7
When trouble arises
7-2. Steps to take in an emergency
If the engine will not start
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●The engine may be flooded.
Try to restart the engine again following correct starting procedures.
(→ P. 1 5 4 )
●There may be a malfunction in the engine immobilizer system.
(→P. 6 8 )
One of the following may be the cause of the problem:
●The battery may be discharged. ( →P. 743)
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse. How-
ever, an interim measure is available to start the engine. ( →P. 7 3 6 )
If the engine will not start even though correct starting procedures are
being followed ( →P. 154), consider each of the following points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
The starter motor does not turn over
Page 737 of 830

7367-2. Steps to take in an emergency
GS350_U (OM30C34U)One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
●The battery may be discharged. (
→P. 743)
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning nor-
mally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depress-
ing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may be
malfunctioning. Have the vehicle inspected by your Lexus dealer.
The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4
Page 762 of 830
GS350_U (OM30C34U)
7618-1. Specifications
8
Vehicle specifications
Light bulbs
Light BulbsBulb No.WTy p e
Exterior
Headlights35A
Fog lights*55B
Front turn signal lights7444NA28 /8C
Rear turn signal lightsW21W21D
Back-up lightsW16W16D
Outer foot lightsW5W5D
Interior
Door courtesy lights5D
Vanity lights8D
Tr u n k l i g h t3.8C
A: D4S discharge bulbsB: H11 halogen bulbs
C: Wedge base bulbs (amber) D: Wedge base bulbs (clear)
*: If equipped
Page 786 of 830
GS350_U (OM30C34U)
7858-2. Customization
8
Vehicle specifications
Illumination
(→ P. 5 4 8 )
Interior lights illumination
controlOnOff——O
“Interior Lights Off Timer”
(Time elapsed before the
interior lights turn off)
15 seconds
7. 5
seconds
O—O30
seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors
are unlockedOnOff——O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
“Exterior Lights Off Timer”
(Time elapsed before the
outer foot lights turn off)
15 seconds
Off
O—O
7. 5
seconds
30
seconds
ItemFunctionDefault settingCustom-
ized setting123
Page 817 of 830

816Alphabetical index
GS350_U (OM30C34U)
Hands-free system (for cellular phone) ........................... 485
HD Radio
® system .............................. 394
Head restraints ........................................136
Headlights ................................................ 190 Adaptive Front-lighting System (AFS) .................................... 192
Discharge headlights precautions........................................673
Headlight leveling warning message .......................... 700
Light switch ............................................ 190
Replacing light bulbs ..........................671
Wattage ....................................................761
Headlights aim.........................................661
Headlights cleaner............................... 203
Head-up display....................................... 90
Heaters Air conditioning system ..................345
Heated steering wheel ................... 566
Seat heaters ......................................... 568
Outside rear view mirrors ............ 365
Hill-start assist control ........................ 276
Horn ............................................................ 189
Hood ............................................................612
Open ......................................................... 612
Warning message .............................704
Hooks Cargo hooks ....................................... 558
Coat hooks ...........................................576
Retaining hooks (floor mat) ............. 26
Luggage hook .................................... 558
Utility hook ........................................... 578 I/M test ..................................................... 608
Identification
Engine ..................................................... 753
Vehicle .................................................... 753
Ignition switch (engine switch) ...........171
Illuminated entry system ................... 550
Immobilizer system ................................ 68
Indicators ..................................................... 77
Initialization
Maintenance ........................................602
Moon roof .............................................. 150
Power windows....................................146
Tire pressure warning system .................................631
Initiators (tire pressure
warning system) .................................637
Inside door handle lights ................... 548
Inside rear view mirror.........................140
Instrument panel light control ............ 80
Interior lights .......................................... 548
Intuitive parking assist ........................ 238
Function .................................................. 238
Warning message.................700, 707
Jack Positioning a floor jack......................613
Vehicle-equipped jack ....................723
Jack handle ..................................................723
Jam protection function Moon roof ...............................................149
Power trunk opener and closer ............................................ 123
Power windows....................................146
HI
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