Page 3 of 628

3
1
9 8
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6 4 3
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IS300h_EE(OM53B95E)
5
3-5. Opening, closing the
windows and moon roof
Power windows ................. 184
Moon roof ......................... 187
4-1. Before driving
Driving the vehicle ............ 192
Cargo and luggage............. 200
Trailer towing .................... 201
4-2. Driving procedures
Power (ignition) switch ..... 209
EV drive mode .................. 214
Hybrid transmission .......... 216
Turn signal lever ............... 222
Parking brake .................... 224
ASC
(Active Sound Control) ... 225
4-3. Operating the lights and
wipers
Headlight switch ............... 226
Automatic High Beam ...... 229
Fog light switch................. 233
Windshield wipers and
washer ............................. 2354-4. Refueling
Opening the fuel tank cap . 241
4-5. Using the driving
support systems
Cruise control .................... 245
Dynamic radar cruise
control ............................. 249
LDA
(Lane Departure Alert).... 261
Lexus parking
assist-sensor .................... 267
Rear view monitor system. 274
Driving mode select
switch .............................. 283
Driving assist systems ....... 286
PCS (Pre-Crash Safety
system) ............................ 292
BSM (Blind Spot Monitor) 299
• The Blind Spot Monitor
function ......................... 304
• The Rear Crossing Traffic
Alert function ................ 306
4-6. Driving tips
Hybrid vehicle driving tips 309
Winter driving tips ............ 311
4Driving
Page 7 of 628
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IS300h_EE(OM53B95E)
5
If the electronic key does
not operate properly ........ 548
If the 12-volt battery is
discharged ....................... 550
If your vehicle overheats ... 555
If the vehicle becomes
stuck ................................ 559
9-1. Specifications
Maintenance data
(fuel, oil level, etc.) ......... 562
Fuel information................ 573
9-2. Customization
Customizable features ....... 575
9-3. Items to initialize
Items to initialize............... 585
What to do if...
(Troubleshooting) .................... 588
Alphabetical index ..................... 592
9Vehicle specifications
Index
For vehicles with a navigation system, refer to the “Navigation 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(OM53B95E)
Switches (Left-hand drive vehicles)
Automatic high beam switch*1 . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Windshield wiper de-icer switch
*1 . . . . . . . . . . . . . . . . . . . . . P. 405
ASC (Active Sound Control) switch
*1 . . . . . . . . . . . . . . . . . . P. 225
Odometer/trip meter and trip meter reset button . . . . . . . . . . . P. 111
Instrument panel light control switches . . . . . . . . . . . . . . . . . . P. 112
Rear sunshade switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 422
Lexus parking assist-sensor switch
*1, 2. . . . . . . . . . . . . . . . . . P. 267
BSM (Blind Spot Monitor) main switch
*1 . . . . . . . . . . . . . . . P. 299
1
2
3
4
5
6
7
8
Page 23 of 628

23Pictorial index
IS300h_EE(OM53B95E)
Inside rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Sun visors
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412
Personal lights
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412
Moon roof switches
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
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
restraint on a seat protected by an
ACTIVE 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(OM53B95E)
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. 225
Automatic high beam switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . P. 229
BSM (Blind Spot Monitor) main switch
*1 . . . . . . . . . . . . . . . P. 299
Lexus parking assist-sensor switch
*1, 2. . . . . . . . . . . . . . . . . . P. 267
Rear sunshade switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 422
1
2
3
4
5
6
7
Page 31 of 628

31Pictorial index
IS300h_EE(OM53B95E)
Inside rear view mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 178
Sun visors
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 420
Interior light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412
Personal lights
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 412
Moon roof switches
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
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
restraint on a seat protected by an
ACTIVE 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(OM53B95E)
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 chemical reaction in the lifters, which causes the
pistons to eject quickly and raise the rear portion of the hood. (Pop Up
Hood: P. 56)
SRS airbag system components
Pop up hood lifters
Airbag manual on-off switch
Front passenger airbag
Curtain shield airbags
Knee airbags
“PASSENGER AIR BAG”
indicator 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
Pop up hood sensors1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Page 56 of 628
561-1. For safe use
IS300h_EE(OM53B95E)
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