
3
1
9 8
7 5 4
3
2
10
IS350 AWD/IS350/IS300 AWD/IS300_U
6
3-5. Opening, closing the windows and moon roof
Power windows ............................162
Moon roof .......................................166
4-1. Before driving Driving the vehicle ...................... 172
Cargo and luggage ................... 180
Vehicle load limits ...................... 183
Trailer towing ............................... 184
Dinghy towing .............................. 185
4-2. Driving procedures Engine (ign ition) switch ............ 186
Automatic transmission ............. 191
Turn signal lever .......................... 198
Parking brake ..............................200
ASC (Active Sound Control) ........ 201
4-3. Operating the lights and wipers
Headlight switch ........................ 202
Automatic High Beam............. 206
Windshield wipers and washer .......................................... 210 4-4. Refueling
Opening the fuel tank cap ................................................. 218
4-5. Using the driving support systems
Lexus Safety System + ............. 222
PCS (Pre-Collision System) ......... 229
LDA (Lane Departure Alert with steering
control)........................................ 240
Dynamic radar cruise control ......................................... 248
Intuitive parking assist.............. 260
Lexus parking assist monitor........................................ 269
BSM (Blind Spot Monitor) ............. 285
• BSM function......................... 289
• RCTA function...................... 292
Driving mode select switch ........................................... 297
Driving assist systems ............... 301
4-6. Driving tips Winter driving tips..................... 306
4Driving

15Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 306
To prevent freezing (windshield wiper de-icer)
*. . . . . . . . . . . . . . . . . . . . . . . P. 422
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 456
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 589
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 485
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 595
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 30 6
Checking/rotation/tire pressure warning system . . . . . . . . . . . . . . . . . . . . . . P. 485
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 559
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 470
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 470
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 590
Coping with overheat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 579
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 535
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Parking lights/daytime running lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Stop lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 1 91
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
4
5
6
7
Light bulbs of the exterior lights for driving(Replacing method: P. 507, Watts: P. 597)
*: If equipped
8
9
10
11
12
13
14

17Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 94
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 94
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 20 0
Applying/releasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 2 00
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 307
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 532
Turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 202
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . . P. 202
Windshield wiper and washer switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 210
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 48 4
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 548
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 514
Trunk opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 470
Tilt and telescopic steering control switch
*1 . . . . . . . . . . . . . . . . . . . . . . . P. 155
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 155
Driving position memory*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 147
Tilt and telescopic steering lock release lever*1 . . . . . . . . . . . . . . . . . . . P. 155
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 155
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 422
Audio system*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 312
Audio system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 312
Hands-free system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 371
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 131
*1: If equipped
*2: For vehicles with a navigation system, refer to “NAVIGATION SYSTEM OWNER’S
MANUAL”.
4
5
6
7
8
9
10
11
12
13
14
15

18Pictorial index
IS350 AWD/IS350/IS300 AWD/IS300_U
■Switches
Automatic High Beam switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 206
Windshield wiper de-icer switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 422
ASC (Active Sound Control) switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 201
Odometer/trip meter and trip meter reset button . . . . . . . . . . . . . . . . . . P. 98
Instrument panel light control swit ches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 92
Rear sunshade switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 439
Intuitive parking assist switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 260
BSM (Blind Spot Monitor) main switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
1
2
3
4
5
6
7
8

421-1. For safe use
IS350 AWD/IS350/IS300 AWD/IS300_U
■If the SRS airbags deploy (inflate)
●Slight abrasions, burns, bruising etc., may be sustained from SRS airbags, due to the
extremely high speed deployment (inflation) by hot gases.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as well as the
seats, parts of the front and rear pillars, an d roof side rails may be hot for several min-
utes. The airbag itself may also be hot.
●The windshield may crack.
●All of the doors will be unlocked. ( P. 129)
●Fuel supply to the engi ne will be stopped. (P. 524)
●For Lexus Enform Safety Connect subscribers, if any of the following situations occur,
the system is designed to send an emerge ncy call to the response center, notifying
them of the vehicle’s location (without needing to push the “SOS” button) and an agent
will attempt to speak with the occupants to ascertain the level of emergency and assis-
tance required. If the occupants are unable to communicate, the agent automatically
treats the call as an emergency and helps to dispatch the necessary emergency ser-
vices. ( P. 68)
• An SRS airbag is deployed.
• A seat belt pretensioner is activated.
• The vehicle is involved in a severe rear-end collision.
■SRS airbag deployment cond itions (SRS front airbags)
●The SRS front airbags will deploy in the event of an impact that exceeds the set thresh-
old level (the level of force corresponding to an approximately 12 - 18 mph [20 - 30
km/h] frontal collision with a fixed wa ll that does not move or deform).
However, this threshold velocity will be cons iderably higher in the following situations:
• If the vehicle strikes an object, such as a parked vehicle or sign pole, which can move
or deform on impact
• If the vehicle is involved in an underride collision, such as a collision in which the
front of the vehicle “underrides”, or goes under, the bed of a truck
●Depending on the type of collision, it is possi ble that only the seat belt pretensioners will
activate.
●The SRS front airbags for the fr ont passenger will not activate if there is no passenger
sitting in the front passenger seat. However, the SRS front airbags for the front passen-
ger may deploy if luggage is put in the seat, even if the seat is unoccupied. ( P. 46)
■SRS airbag deployment conditions (S RS side and curtain shield airbags)
●The SRS side and curtain shield airbags w ill deploy in the event of an impact that
exceeds the set threshold level (the level of force corresponding to the impact force
produced by an approximately 3300 lb. [15 00 kg] vehicle colliding with the vehicle
cabin from a direction perpendicular to the vehicle orientation at an approximate
speed of 12 - 18 mph [20 - 30 km/h]).
●Both SRS curtain shield airbags will de ploy in the event of vehicle rollover.
●Both SRS curtain shield airbags will deploy in the event of a severe frontal collision.

671-1. For safe use
1
For safety and security
IS350 AWD/IS350/IS300 AWD/IS300_U
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if inhaled.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and odorless.
Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an accident
caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open the
windows and have the vehicle inspected at your Lexus dealer as soon as possible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop the
engine.
●Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and ensure
that exhaust fumes do not enter the vehicle interior.
●Do not leave the engine running in an area with snow build-up, or where it is snowing.
If snowbanks build up around the vehicle while the engine is running, exhaust gases
may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack caused
by corrosion, damage to a joint or abnormal exhaust noise, be sure to have the vehicle
inspected and repaired by your Lexus dealer.

852. Instrument cluster
2
Instrument cluster
IS350 AWD/IS350/IS300 AWD/IS300_U
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
( P. 525)*1Electric power steering sys-
tem warning light
( P. 526)
*1
(Canada)
Brake system warning light
( P. 525) LDA (Lane Departure
Alert) indicator (
P. 526)
*1
(if equipped)
Charging system warning
light ( P. 525)*1PCS warning light
( P. 526)
*1
(U.S.A.)
Malfunction indicator lamp
( P. 525)*1
Slip indicator ( P. 526)
*1
(Canada)
Malfunction indicator lamp
( P. 525)*1, 2
(if equipped)
“AFS OFF” indicator
( P. 527)
*1SRS warning light
( P. 525)Open door warning light
( P. 527)
*1
(U.S.A.)
ABS warning light
( P. 525)Low fuel level warning light
( P. 527)
*1
(Canada)
ABS warning light
( P. 525)Driver’s and front passen-
ger’s seat belt reminder light
( P. 527)
(U.S.A.)
Parking brake warning light
( P. 526)*3Rear passengers’ seat
belt reminder lights
( P. 527)
(Canada)
Parking brake warning light
( P. 526)*1Master warning light
( P. 527)

862. Instrument cluster
IS350 AWD/IS350/IS300 AWD/IS300_U
*1: These lights turn on when the engine switch is turned to IGNITION ON mode to indicate that a system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if a light does
not come on, or turn off. Have the ve hicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
*3: This light illuminates on the center panel.
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems.
*1Tire pressure warning light
( P. 527)
Indicators
Turn signal indicator
( P. 198) LDA (Lane Departure
Alert) indicator (
P. 240)
(U.S.A.)
Headlight indicator
( P. 202) LDA (Lane Departure
Alert) indicator (
P. 240)
(Canada)
Tail light indicator
( P. 202) *2LDA (Lane Departure
Alert) indicator ( P. 240)
Headlight high beam indi-
cator ( P. 203)
(if equipped)
Intuitive parkin g assist indi-
cator ( P. 260)
*1Automatic High Beam indi-
cator ( P. 206)*1, 2
Slip indicator ( P. 302)
Cruise control indicator
( P. 248)
*1VSC OFF indicator
( P. 303)
Dynamic radar cruise con-
trol indicator ( P. 248)
*1, 3PCS warning light
( P. 233)
Cruise control “SET” indica-
tor ( P. 248)
*1
(if equipped)
“AFS OFF” indicator
( P. 203)