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3-5. Opening, closing the windows and moon roof
Power windows ............................ 185
Moon roof ...................................... 189
4-1. Before driving Driving the vehicle ...................... 194
Cargo and luggage ...................202
Trailer towing (vehicles without a towing package) ..................203
Trailer towing (vehicles with a towing package) ..................204
4-2. Driving procedures Power (ignition) switch.............. 212
EV drive mode ..............................217
Hybrid transmission ................... 219
Turn signal lever ..........................225
Parking brake............................... 227
ASC (Active Sound Control) ........228
4-3. Operating the lights and wipers
Headlight switch ......................... 229
Automatic High Beam ............. 232
Fog light switch............................236
Windshield wipers and washer......................................... 238 4-4. Refueling
Opening the fuel tank cap...... 246
4-5. Using the driving support systems
Cruise control ............................ 250
Dynamic radar cruise control..........................................254
LDA (Lane Departure Alert) ........ 270
Lexus parking assist-sensor ...............................276
Rear view monitor system ..........................................283
Driving mode select switch ........................................... 293
Driving assist systems ............... 296
PCS (Pre-Crash Safety system).........................................302
BSM (Blind Spot Monitor) ...... 310 •The Blind Spot Monitor function...................................... 315
•The Rear Crossing Traffic Alert function ............ 317
4-6. Driving tips Hybrid vehicle driving tips .................................................320
Winter driving tips ..................... 322
4Driving
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If the electronic key does not operate properly .....................563
If the 12-volt battery is discharged .................................566
If your vehicle overheats ...........571
If the vehicle becomes stuck.............................................. 575
9-1. Specifications Maintenance data (fuel, oil level, etc.)................... 578
Fuel information ......................... 589
9-2. Customization Customizable features.............. 591
9-3. Initialization Items to initialize .......................... 601
What to do if... (Troubleshooting) ................................604
Alphabetical index ................................ 608
9Vehicle specifications
Index
For vehicles with a navigation or multimedia system, refer to “NAVIGATION
AND MULTIMEDIA SYSTEM OWNER’S MANUAL” for information
regarding the equipment listed below.
• Navigation system
• Audio/video system• Lexus parking assist-sensor
• Lexus parking assist monitor
Page 18 of 628
18Pictorial index
IS300h_EE(OM53D56E)
■Switches (Left-hand drive vehicles)
Automatic high beam switch*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
Windshield wiper de-icer switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 419
ASC (Active Sound Control) switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Odometer/trip meter and trip meter reset button . . . . . . . . . . . . . . . . . . . P. 111
Instrument panel light control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 112
Rear sunshade switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437
Lexus parking assist-sensor switch
*1, 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 276
BSM (Blind Spot Monitor) main switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 310
1
2
3
4
5
6
7
8
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23Pictorial index
IS300h_EE(OM53D56E)
Inside rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 179
Sun visors
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 435
Vanity mirrors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 435
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Personal lights
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Moon roof switches
*3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 189
Intrusion sensor cancel switch
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 99
Intrusion sensor and tilt sensor cancel switch
*3. . . . . . . . . . . . . . . . . . . . . . P. 99
1
2
3
4
5
6
*1: NEVER use a rearward facing child re- straint on a seat protected by an AC-
TIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY to the CHILD can
occur. ( →P. 76 )
*2: The illustration shows the front, but they are also equipped in the rear.
*3: If equipped
Page 26 of 628
26Pictorial index
IS300h_EE(OM53D56E)
■Switches (Right-hand drive vehicles)
Instrument panel light control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 112
Odometer/trip meter and trip meter reset button . . . . . . . . . . . . . . . . . . . P. 111
ASC (Active Sound Control) switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Automatic high beam switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 232
BSM (Blind Spot Monitor) main switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 310
Lexus parking assist-sensor switch
*1, 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 276
Rear sunshade switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 437
1
2
3
4
5
6
7
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31Pictorial index
IS300h_EE(OM53D56E)
Inside rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 179
Sun visors
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 435
Vanity mirrors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 435
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Personal lights
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 426
Moon roof switches
*3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 189
Intrusion sensor cancel switch
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 99
Intrusion sensor and tilt sensor cancel switch
*3. . . . . . . . . . . . . . . . . . . . . . P. 99
1
2
3
4
5
6
*1: NEVER use a rearward facing child re- straint on a seat protected by an AC-
TIVE AIRBAG in front of it, DEATH or
SERIOUS INJURY to the CHILD can
occur. ( →P. 76 )
*2: The illustration shows the front, but they are also equipped in the rear.
*3: If equipped
Page 44 of 628

441-1. For safe use
IS300h_EE(OM53D56E)
The main SRS airbag system and Pop Up Hood components are shown above.
The SRS airbag system and Pop Up Hood are controlled by the airbag sensor
assembly. As the airbags deploy, a chemical reaction in the inflators quickly fills
the airbags with non-toxic gas to help restrain the motion of the occupants.
When the Pop Up Hood is activated, a non-toxic gas is released due to a chemi-
cal reaction in the lifters, which causes the pistons to eject quickly and raise the
rear portion of the hood. (Pop Up Hood: →P. 5 6 )
SRS airbag system components
Pop up hood lifters
Airbag manual on-off switch
Front passenger airbag
Curtain shield airbags
Knee airbags
“PASSENGER AIR BAG” indica-
tor lights
Seat belt pretensioners and force
limiters
Side impact sensors (front) Front side airbags
SRS warning light
Driver airbag
Side impact sensors (rear)
Driver’s seat position sensor
Driver’s seat belt buckle switch
Airbag sensor assembly
Front impact sensors
Po p u p h o o d s e n s o r s1
2
3
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5
6
7
8
9
10
11
12
13
14
15
16
17
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561-1. For safe use
IS300h_EE(OM53D56E)
When the sensors located at the back of the front bumper detect an impact with
a body, such as a pedestrian, which meets or exceeds the threshold level while
the vehicle is being driven within the operational speed range, the system
becomes operational and raises the rear portion of the hood.
Sensors
Hood
Lifters
Pop Up Hood
In the event of a frontal collision with a body, such as a pedestrian, the Pop Up
Hood system raises the rear portion of the hood to reduce the possibility of a
serious impact to the pedestrian’s head area by adding clearance to the
engine compartment.
Pop Up Hood mechanism
1
2
3