Page 694 of 828

6947-2. Steps to take in an emergency
GS350_U (OM30C34U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The
vehicle will become extremely unstable during braking, and the ABS system may
fail, which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
Page 710 of 828
7107-2. Steps to take in an emergency
GS350_U (OM30C34U)
Indicates that remaining
fuel is approximately 2.8
gal. (10.5 L, 2.3 Imp.gal.)
or less
Refuel the vehicle.
Indicates that the engine
switch is turned off or
turned to ACCESSORY
mode and the driver’s
door is opened while the
lights are turned on
Tu r n t h e l i g h t s o f f .
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P
Shift the shift position to P.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)
Page 735 of 828

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 foll owing 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 736 of 828

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 th e 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 ov er, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4
Page 745 of 828

7457-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is
not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to star t. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●Make sure the key is not inside the vehicle when recharging or replacing the bat-
tery to prevent the doors from being lock ed with the key left inside the vehicle
when the alarm operates.
●In some cases, it may not be possible to unlock the doors using the smart access
system with push-button start when the battery is discharged. Use the wireless
remote control or the mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but
will start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was dis-
charged. Before disconnecting the ba ttery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
Page 757 of 828
GS350_U (OM30C34U)
7578-1. Specifications
8
Vehicle specifications
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact your Lexus dealer.
Electrical system
Battery
Open voltage at 68 F
(20 C):
Specific gravity reading
at 68 F (20 C):12.6 12.8 V Fully charged
12.2
12.4 V Half charged
11.8 12.0 V Discharged
(Voltage is checked 20 mi nutes after the engine and
all lights are turned off.)
1.250
1.290 Fully charged
1.160
1.200 Half charged
1.060
1.100 Discharged
Charging rates
Quick charge
Slow charge15 A max.
5 A max.
Automatic transmission
Fluid capacity*2WD8.3 qt. (7.9 L, 7.0 Imp.qt.)
AW D10.6 qt. (10.0 L, 8.8 Imp.qt.)
Fluid typeTo y o t a G e n u i n e AT F W S
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterio-
ration in shift quality, locking up of yo ur transmission accompanied by vibration,
and ultimately damage the tr ansmission of your vehicle.
Page 761 of 828
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 781 of 828

GS350_U (OM30C34U)
7818-2. Customization
8
Vehicle specifications
Smart
access
system with
push-button
start
( P. 1 0 1 )
and
wireless
remote
control
( P. 114)
“Lock/Unlock Feedback-
To n e ” ( A d j u s t t h e v o l u m e
of buzzer sounds)
5
Off
O—O
1 to 7
“Lock/Unlock Feedback-
Lights” (Enable/disable the
operation of the emer-
gency flashers when the
vehicle is locked or
unlocked)
OnOffO—O
“A u t o R e l o c k T i m e r ”
(Adjust the time elapsed
before the automatic door
lock function is activated if
a door is not opened after
being unlocked)
60
seconds
Off
O—O
30
seconds
120
seconds
Open door reminder
buzzer (When locking the
vehicle)
OnOff——O
Smart
access
system with
push-button
start
( P. 1 0 1 )
“Access System with Elec.
Key” (Smart access system
with push-button start can
be disabled)
OnOffO—O
“Select Doors to Unlock”
(The doors that are
unlocked using the smart
access system with push-
button start can be
selected)
Driver’s
doorAll the doorsO—O
Number of consecutive
door lock operations2 timesAs many as desired——O
ItemFunctionDefaultsettingCustom-
ized setting123