cruise control Lexus GS450h 2015 Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H FROM MAR. 2015 PROD. OWNERS MANUAL (OM30F70U)

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GS450h_OM_OM30F70U_(U)
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3-5. Opening, closing the windows and moon roof
Power windows ............................. 167
Moon roof ........................................ 171
4-1. Before driving Driving the vehicle ...................... 176
Cargo and luggage.....................187
Vehicle load limits ....................... 190
Trailer towing .................................. 191
Dinghy towing ...............................192
4-2. Driving procedures Power (ignition) switch ..............193
EV drive mode ............................200
Hybrid transmission .................. 203
Turn signal lever .......................... 209
Parking brake ................................. 211
Brake Hold .....................................214
Horn ..................................................216
4-3. Operating the lights and wipers
Headlight switch .......................... 217
Fog light switch ........................... 222
Windshield wipers and washer ................................ 223 4-4. Refueling
Opening the fuel tank cap ..... 230
4-5. Using the driving support systems
Cruise control ............................. 235
Dynamic radar cruise control............................ 239
Dynamic radar cruise control with full-speed range............. 254
LKA (Lane-Keeping Assist) ...........270
Driving mode select switch ... 280
Driving assist systems .............. 283
PCS (Pre-Collision System) ......... 290
BSM (Blind Spot Monitor) .............300
• The Blind Spot Monitor function .................................... 304
• The Rear Cross Traffic Alert function ........................ 307
Lexus night view .......................... 310
4-6. Driving tips Hybrid vehicle driving tips .......316
Winter driving tips ...................... 318
4Driving

GS450h_OM_OM30F70U_(U)
9
The installation of a mobile two-way radio system in your vehicle could affect elec-
tronic systems such as:
●Multiport fuel injection system/sequential multiport fuel injection system
●Dynamic radar cruise control system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with your Lexus dealer for precautionary measures or special
instructions regarding installation of a mobile two-way radio system.
High voltage parts and cables on the hybr id vehicles emit approximately the same
amount of electromagnetic waves as the conventional gasoline powered vehicles or
home electronic appliances despite of their electromagnetic shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.
Installation of a mobile two-way radio system

22Pictorial index
GS450h_OM_OM30F70U_(U)
Audio remote control switches*1
Paddle shift switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
Back switch
*1
Ta l k s w i t c h*1
Telephone switches*1
“DISP” button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 97
Vehicle-to-vehicle distance button
*2. . . . . . . . . . . . . . . . . . . . . . . . . P. 242, 257
Cruise control switch
Cruise control
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 235
Dynamic radar cruise control
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 239
Dynamic radar cruise control with full-speed range
*2 . . . . . . . . . . . . . . P. 254
Tilt and telescopic steering contro l switch . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 161
LKA (Lane-Keeping Assist) switch
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
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GS450h_OM_OM30F70U_(U)
892. Instrument cluster
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Instrument cluster
The indicators inform the driver of the operating state of the vehicle’s vari-
ous systems.
Indicators
Turn signal indicator
(  P. 2 0 9 )
(if equipped)
LKA (Lane-Keeping
Assist) indicator
( P. 2 7 0 )
(U.S.A.)
Headlight indicator
( P. 2 1 7 )*1
(if equipped)
Intuitive parking assist indi-
cator
(Canada)
Tail light indicator
( P. 2 1 7 ) *2
(if equipped)
“AFS OFF” indicator
( P. 2 1 9 )
Headlight high beam indi-
cator ( P. 2 1 8 )
*2, 3Slip indicator
( P. 285)
(if equipped)
Front fog light indicator
( P. 222)*2VSC OFF indicator
( P. 285)
“READY” indicator
(  P. 1 9 3 )
*2, 4
(if equipped)
“PCS” warning light
( P. 2 9 2 )
EV indicator ( P. 74 )
(U.S.A.)
Parking brake indicator
( P. 211)
Cruise control indicator
(  P. 235, 239)
(Canada)
Parking brake indicator
( P. 2 1 1 )
(if equipped)
Radar cruise control indi-
cator ( P. 2 3 9 )*2Brake hold standby indica-
tor ( P. 2 1 4 )
Cruise control “SET” indi-
cator ( P. 235, 239)
*2Brake hold operated indi-
cator ( P. 2 1 4 )

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GS450h_OM_OM30F70U_(U)
2. Instrument cluster
Multi-information display
The multi-information display presents the driver with a variety of driving-
related data including the cu rrent outside air temperature.
●Energy monitor (P. 112)
●Outside temperature display
(P. 9 7 )
●Trip information ( P. 9 7 )
Displays driving range, fuel consump-
tion and other cruising related infor-
mation
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Tire inflation pressure (if equipped) ( P. 99)
●Drive monitor ( P. 99)
●Intuitive parking assist display* (if equipped)
Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”.
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Dynamic radar cruise control display* (if equipped) ( P. 2 3 9 )
●Dynamic radar cruise control with full-speed range display* (if
equipped) ( P. 2 5 4 )
●LKA (Lane-Keeping Assist) display* (if equipped) ( P. 270)
●Warning messages ( P. 513)
Automatically displayed when a malfunction occurs in one of the vehicle’s sys-
tems. Display can be switched by pressing the “DISP” button. ( P. 9 7 )
*: Automatically displayed when the system is used. Display can be switched by
pressing the “DISP” button. ( P. 9 7 )
Display contents

GS450h_OM_OM30F70U_(U)
1052. Instrument cluster
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Instrument cluster
●Vehicle speed
●Hybrid System Indicator( P. 1 0 8 )
●Tachometer
●Shift position and shift range
Displays the selected shift position or selected shift range ( P. 2 0 3 )
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Audio display
Displays audio information for approximately 3 seconds when the audio system is
operated
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Route guidance display (vehicles with navigation system) (P. 1 0 9 )
When approaching an intersection while the navigation system is giving route
guidance, an arrow will automatically be displayed to indicate the direction of
travel.
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Lexus Enform (if equipped)
Displays “LEXUS Enform” for approximately 3 seconds when LEXUS App Suite
is operated
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Lane departure warning display (LKA [Lane-Keeping Assist])
(if equipped) ( P. 5 2 7 )
●Approach warning display (dynamic radar cruise control, dynamic
radar cruise control with fu ll-speed range) (if equipped) ( P. 5 2 6 )
●Pre-collision braking warning message (pre-collision system)
(if equipped) ( P. 5 2 6 )
Head-up display contents

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GS450h_OM_OM30F70U_(U)
4Driving
4-1. Before driving Driving the vehicle ....................... 176
Cargo and luggage .................... 187
Vehicle load limits .......................190
Trailer towing .................................. 191
Dinghy towing............................... 192
4-2. Driving procedures Power (ignition) switch.............. 193
EV drive mode ........................... 200
Hybrid transmission ..................203
Turn signal lever ......................... 209
Parking brake ..................................211
Brake Hold ..................................... 214
Horn.................................................. 216
4-3. Operating the lights and wipers
Headlight switch .......................... 217
Fog light switch............................ 222
Windshield wipers and washer .................................223
4-4. Refueling Opening the fuel tank cap..... 230 4-5. Using the driving support
systems
Cruise control ............................. 235
Dynamic radar cruise control ............................ 239
Dynamic radar cruise control with full-speed range ............. 254
LKA (Lane-Keeping Assist) .......... 270
Driving mode select switch ...280
Driving assist systems............... 283
PCS (Pre-Collision System).......... 290
BSM (Blind Spot Moni tor)............. 300
• The Blind Spot Monitor function ....................................304
• The Rear Cross Traffic Alert function......................... 307
Lexus night view .......................... 310
4-6. Driving tips Hybrid vehicle driving tips....... 316
Winter driving tips ...................... 318

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GS450h_OM_OM30F70U_(U)4-5. Using the driving support systems
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Driving
Cruise control
Use the cruise control to maintain a set speed without depressing the
accelerator pedal.
Indicators
Cruise control switch
Press the “ON/OFF” button to
activate the cruise control.
Cruise control indicator will come on.
Press the button again to deactivate
the cruise control.
Accelerate or decelerate the
vehicle to the desired speed, and
push the lever down to set the
speed.
“SET” indicator will come on.
The vehicle speed at the moment the
lever is released becomes the set
speed.
: If equipped
Summary of functions
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Setting the vehicle speed
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GS450h_OM_OM30F70U_(U)
2374-5. Using the driving support systems
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Driving
■Cruise control can be set when
●The shift lever is in D or range 4 or higher of S has been selected.
●Range 4 or higher of D has been selected by using the paddle shift.
●Vehicle speed is above approximately 25 mph (40 km/h).
■Accelerating after setting the vehicle speed
●The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
●Even without canceling the cruise control, the set speed can be increased by first
accelerating the vehicle to the desired speed and then pushing the lever down to
set the new speed.
■Automatic cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following situa-
tions.
●Actual vehicle speed falls more than approximately 10 mph (16 km/h) below the
preset vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 25 mph (40 km/h).
●VSC is activated.
●TRAC is activated for a period of time.
●When the VSC or TRAC system is turn ed off by pressing the VSC OFF switch.
■If the warning message for the cruise control is shown on the multi-information dis-
play
Press the “ON/OFF” button once to deacti vate the system, and then press the but-
ton again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by your Lexus dealer.

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GS450h_OM_OM30F70U_(U)
4-5. Using the driving support systems
CAUTION
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON/OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in
death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
●During emergency towing