Page 3 of 96

2
IS500_IS350_IS300_QG_U
Driving ComfortRemote Touch ................................................................................................................... ..............42
Center Display ................................................................................................................. .............. 43
Fuel Consumption Information ............................. .................................................................. 46
Navigation System
*..................................................................................................................... 48
Hands-free System For Cellular Phone
*.............................................................................51
Audio System
*............................................................................................................................... 55
Automatic Air Conditioning System
*.................................................................................... 61
Voice Command System
*........................................................................................................ 64
USB/AUX Ports .................................................................................................................. ........... 71
Lexus Enform Safety Connect..................................................................................................72
Lexus Enform Remote ............................................................................................................ .....74
Lexus Enform Service Connect...............................................................................................75
SiriusXM Satellite Radio ....................................................................................................... ......76
Opening and Closing
Door Locks ..................................................................................................................... .................. 77
Power Windows .................................................................................................................. .......... 78
Moon Roof ...................................................................................................................... ..................79
Fuel Tank Cap ................................................................................................................................ 80
Trunk.......................................................................................................................... ...........................81
Garage Door Opener ............................................................................................................. ... 82
What to do if... List of Warning/Indicator Lights............................................................................................. 86
If the electronic key does not operate proper ly ............................................................... 90
If the engine doesn’t start ...... ..................................................................................................... 92
*: This feature may be operated by Voice command (See P.64)
Page 5 of 96

4
IS500_IS350_IS300_QG_U
Parking brake switch ............................................................................................... P.22
Applying/releasing..............................................................................................................P.22
Precautions for winter season
*1
Warning buzzer/messages*1
Turn signal lever ......................................................................................................... P.21
Headlight switch ....................................................................................................... P.29
Headlights/parking lights/tai l lights/daytime running lights .............................P.29
Windshield wiper and washer switch ................................................................. P.32
Usage .......................................................................................................................... ..............P.32
Adding washer fluid
*1
Warning messages*1
Emergency flasher switch*1
Trunk opener .............................................................................................................. P.81
Hood lock release lever
*1
Tilt and telescopic steering control switch*1, 2
Adjustment*1
Driving position memory*1, 2
Tilt and telescopic steering lock release lever*1, 2
Adjustment*1
Air conditioning system ........................................................................................... P.61
Usage .......................................................................................................................... ............... P.61
Rear window defogger ....................................................................................................... P.61
Audio system.............................................................................................................. P.55
Trunk opener main switch....................................................................................... P.81
*1: Refer to the “Owner’s Manual”.
*2:If equipped
E
F
G
H
I
J
K
L
M
N
O
Page 13 of 96
12
IS500_IS350_IS300_QG_U
Electronic keys
• Operating the smart access system with push-button start ( P.14)
• Operating the wireless remote control function
Mechanical keys
Key number plate
Card key (electroni c key) (if equipped)
Operating the smart access system with
push-button start ( P.14)
Locks the doors
Unlocks the doors
Opens the windows
*1 and moon
roof
*1, 2
Opens the trunk
Sounds the alarm
*1: This setting must be customized at your
Lexus dealer.
*2:If equipped
Keys
The keys
A
B
C
D
Wireless remote control
A
B
C
D
E
Page 15 of 96

14
IS500_IS350_IS300_QG_U
1Grip the driver’s door handle to unlock
the door. Grip the passenger’s front
door handle to unlock all the doors.
*
Make sure to touch the sensor on the
back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
*: The door unlock settings can bechanged.
2Touch the lock sensor (indentation on the upper part of the front door handle) to lock all
the doors.
Check that the door is securely locked.
While carrying the electronic key, press the
button on the trunk lid.
When all the doors are unlocked with the
power door lock system, the trunk can be
opened without carrying the electronic key.
Smart Access System with Push-button Start
The following operations can be performed si mply by carrying the electronic key on your
person, for example in your pocket. The driv er should always carry the electronic key.
For details on starting the engine, see page 15.
Unlocking and locking the doors from the outside
Opening the trunk from outside the vehicle
For details on what to do when the electronic key does not operate properly, see page 90.
Page 82 of 96
81
IS500_IS350_IS300_QG_U
■Trunk opener switch
Press the trunk opener switch.
■Smart access system with push-button start
P.14
■Wireless remote control
P.12
To protect luggage stored in the trunk against theft, the luggage security system can be set
to on.
1Move the luggage security system
levers to the lock position.
2To disable the trunk opener, turn the
main switch in the glove box off.
On
Off
When the main switch is off, the trunk
lid cannot be opened even with the
wireless remote control or entry func-
tion.
Trunk
Opening the trunk
Luggage security system
A
B
Page 91 of 96
90
What to do if...
IS500_IS350_IS300_QG_U
■Doors
Use the mechanical key in order to perform the following operations:
1Locks all the doors
2Unlocks the door
Turning the key rearward unlocks the
driver’s door. Turning the key once
again within 5 seconds unlocks the
other doors.
■Trunk
Turn the mechanical key clockwise to
open.
If the electronic key does not operate properly
Locking and unlocking the doors, unlocking the trunk