Page 593 of 660

5939-1. Specifications
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Lexus dealer.
Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory.
Use Lexus approved “Toyota Genuine Differen tial Gear Oil” or an equivalent oil of
matching quality to satisfy the above specific ation. Please contact your Lexus dealer for
further details.
Automatic transmission
Fluid capacity*
IS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp. qt.)
IS350 AWD/
IS300 AWD
(AWD)
10.6 qt. (10.0 L, 8.8 Imp. qt.)
IS3009.2 qt. (8.7 L, 7.7 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause deterioration
in shift quality, locking up of your transm ission accompanied by vibration, and ulti-
mately damage the transmission of your vehicle.
Front differential (AWD models)
Oil capacity 0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil type and viscosity
Toyota Genuine Differential gear oil GL-5 or equivalent
Above 0 F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90
Page 615 of 660

6159-2. Customization
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
■Door lock (P. 124, 130, 572)
■Smart access system with push-button start and wireless remote control
( P. 124, 130)
FunctionDefault settingCustomized setting
Unlocking using a mechanical
key
Driver’s door
unlocked in one
step, all doors
unlocked in two steps
All doors unlocked in one step—O
Automatic door lockShifting the shift
lever to position
other than P
Off
OOVehicle speed is
approximately 12
mph (20 km/h) or higher
Automatic door unlockShifting the shift
lever to POff
OODriver’s door is opened
Locking/unlocking of the trunk
when all doors are locked/
unlocked
OnOff—O
12
FunctionDefault settingCustomized setting
Operation buzzer volume5OffOO1 to 7
Operation signal
(Emergency flashers)OnOffOO
Time elapsed before automatic
door lock function is activated if
door is not opened after being
unlocked
60 seconds
Off
OO30 seconds
120 seconds
Open door warning buzzerOnOff—O
Welcome light illumination con-
trolOnOff—O
12
Page 616 of 660
6169-2. Customization
IS350 AWD/IS350/IS300 AWD/IS300_U
■Smart access system with push-button start ( P. 124, 130, 135)
■Wireless remote control ( P. 118, 124, 130)
FunctionDefault settingCustomized setting
Smart access system with push-
button startOnOff—O
Smart door unlockingDriver’s doorAll the doorsOO
Number of consecutive door
lock operations2 timesAs many as desired—O
12
FunctionDefault settingCustomized setting
Wireless remote controlOnOff—O
Unlocking operation
Driver’s door
unlocked in one step, all doors
unlocked in two steps
All doors unlocked in one stepOO
Trunk unlocking operationPress and hold (short)
One short press
—O
Push twice
Press and hold (long)
Off
Alarm (panic mode)OnOff—O
12
Page 620 of 660
6209-2. Customization
IS350 AWD/IS350/IS300 AWD/IS300_U
■Illumination ( P. 428)
■Seat belt reminder ( P. 527)
FunctionDefault settingCustomized setting
Time elapsed before the interior
lights turn off15 seconds
Off
OO7.5 seconds
30 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
Inside door handle lightsOnOff—O
Time elapsed before the outer
foot lights turn off15 seconds
Off
OO7.5 seconds
30 seconds
Operation of the outer foot lights
when you approach the vehicle
with the electronic key on your
person
OnOff—O
Operation of the outer foot lights
when the doors are unlocked
with the power door lock switch
OnOff—O
12
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff—O
12
Page 621 of 660

6219-2. Customization
9
Vehicle specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
■Vehicle customization
●When the smart access system with push-button start is off, the entry unlock function
cannot be customized.
●When the doors remain closed after unlocking the doors and the timer activated auto-
matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational si gnal (Emergency flashers) function set-
tings.
●Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch, the changed setting will not be reflected on the audio system screen until the engine switch is turned off and then to IGNITION ON mode.
WARNING
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilation. In a closed area such as a garage, exhaust
gases including harmful carbon monoxide (CO) may collect and enter the vehicle. This
may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing fea-
tures.
Page 636 of 660

636
IS350 AWD/IS350/IS300 AWD/IS300_UWhat to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne
w genuine mechanical keys can be made
by your Lexus dealer. ( P. 120)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( P. 123)
●Is the electronic key battery weak or depleted? ( P. 502)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (P. 187)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 137)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 127)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 637 of 660

637What to do if... (Troubleshooting)
IS350 AWD/IS350/IS300 AWD/IS300_U
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk.
( P. 132)
●Did you press the engine switch while firmly depressing the brake pedal?
( P. 186)
●Is the shift lever in P? ( P. 188)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 135)
●Is the steering wheel unlocked? ( P. 188)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 573)
●Is the battery discharged? ( P. 575)
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in IGNITION ON mode. ( P. 196)
●It is locked automatically to prevent theft of the vehicle. ( P. 188)
The trunk lid is closed with the electronic key left inside
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from
P even if you depress the brake
pedal
The steering wheel cannot be turned after the engine is stopped
Page 638 of 660

638What to do if... (Troubleshooting)
IS350 AWD/IS350/IS300 AWD/IS300_U
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 162)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 188)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (P. 527)
●The parking brake indicator is on
Is the parking brake released? ( P. 200)
Depending on the situation, other types of warning buzzer may also sound.
( P. 525, 532)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 78)
Do one of the following to de activate or stop the alarms:
• Unlock the doors or open the trunk.
• Turn the engine switch to ACCESSOR Y or IGNITION ON mode, or start
the engine. The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds