cruise control Lexus GS450h 2018 Owner's Manual / LEXUS 2018 GS450H OWNER'S MANUAL (OM30G62U)

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GS450h_OM_OM30G62U_(U)
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4-1. Before drivingDriving the vehicle ..................... 168
Cargo and luggage .................... 176
Vehicle load limits ....................... 179
Trailer towing ............................... 180
Dinghy towing ................................ 181
4-2. Driving procedures Power (ignition) switch............. 182
EV drive mode ..............................187
Hybrid transmission................... 189
Turn signal lever .......................... 195
Parking brake ................................196
Brake Hold .................................... 198
4-3. Operating the lights and wipers
Headlight switch ........................200
Automatic High Beam............. 203
Windshield wipers and washer ................................ 207 4-4. Refueling
Opening the fuel tank cap .......213
4-5. Using the driving support systems
Lexus Safety System+ ................ 217
PCS (Pre-Collision System) ......... 223
LKA (Lane-Keeping Assist) .......................................... 234
Dynamic radar cr uise control
with full-speed range............. 243
Cruise control ............................. 255
Driving mode select switch ... 258
BSM (Blind Spot Monitor) ............. 260
• The Blind Spot Monitor function .................................... 263
• The Rear Cross Traffic Alert function......................... 265
Driving assist systems .............. 268
4-6. Driving tips Hybrid vehicle driving tips ......274
Winter driving tips......................276
4Driving

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GS450h_OM_OM30G62U_(U)
For your information
Please note that this manual applies to all models and explains all equipment, including
options. Therefore, you may find some expl anations for equipment not installed on your
vehicle.
All specifications provided in this manual are current at the time of printing. However,
because of the Lexus policy of continual pr oduct improvement, we reserve the right to
make changes at any time without notice.
Depending on specifications, th e vehicle shown in the illustrations may differ from your
vehicle in terms of color and equipment.
Approximately five hours after the hybrid system is turned off, you may hear sound com-
ing from under the vehicle for several minutes. This is the sound of a fuel evaporation
leakage check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are cur-
rently available in the market. You should kn ow that Toyota does not warrant these prod-
ucts and is not responsible fo r their performance, repair, or replacement, or for any
damage they may cause to, or adverse effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification with
non-genuine Lexus products could affect its performance, safety or durability, and may
even violate governmental regulations. In addition, damage or performance problems
resulting from the modification may not be covered under warranty.
The installation of a mobile two-way radio system in your vehicle could affect electronic
systems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Lexus Safety 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 instruc-
tions regarding installation of a mobile two-way radio system.
High voltage parts and cables on the hybrid vehicles emit approximately the same
amount of electromagnetic waves as the co nventional gasoline powered vehicles or
home electronic appliances despite of their electromagnetic shielding.
Unwanted noise may occur in the rece ption of the mobile two-way radio.
Main Owner’s Manual
Noise from under vehicle after turning off the hybrid system
Accessories, spare parts and modification of your Lexus
Installation of a mobile two-way radio system

20Pictorial index
GS450h_OM_OM30G62U_(U)
Audio remote control switches*1
Paddle shift switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 191
Talk switch
*1
Meter control switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 96
Vehicle-to-vehicle distance switch
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 249
Cruise control switch
Cruise control*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 255
Dynamic radar cruise control with full-speed range*2 . . . . . . . . . . . . . . . . . P. 243
LKA (Lane-Keeping Assist) switch*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 234
Telephone switches
*1
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GS450h_OM_OM30G62U_(U)
2. Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indicate that asystem check is being performed. They will turn off after the “READY” indicator turns
on. There may be a malfunction in a system if a light does not come on, or turn off.
Have the vehicle inspected by your Lexus dealer.
*2: These lights turn on when the power switch is turned to ON mode to indicate that a system check is being performe d. They will turn off after the hybrid system is on, or
after a few seconds. There ma y be a malfunction in a system if a light does not come
on, or turn off. Have the vehicl e inspected by your Lexus dealer.
*3:F SPORT models
*4: The light flashes or illuminate s to indicate a malfunction.
*5: The light flashes to indicate a malfunction.
The indicators inform the driver of the op erating state of the vehicle’s various sys-
tems.
(If equipped)
LKA warning light
( → P. 407)
Indicators
Turn signal indicator
(→ P. 195)*1
(If equipped)
Intuitive parking assist
indicator
(U.S.A.)
Headlight indicator
(→ P. 200)*2
(If equipped)
“AFS OFF” indicator
(→ P. 201)
(Canada)
Tail light indicator
(→ P. 200) *3, 4
Slip indicator ( →P. 270)
Headlight high beam
indicator ( →P. 200)
*2VSC OFF indicator
(→ P. 271)
(If equipped)
Automatic High Beam
indicator ( →P. 203)*2, 5
(If equipped)
PCS (Pre-Collision
System) warning light
(→ P. 226)
Cruise control indicator
( → P. 243, 255)
*6, 7
(If equipped)
BSM (Blind Spot Monitor)
outside rear view mirror
indicators ( →P. 260)

GS450h_OM_OM30G62U_(U)
852. Instrument cluster
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Instrument cluster
●Drive mode indicators
Except F SPORT models
(If equipped)
Dynamic radar cruise
control indicator (→P. 243)
(If equipped)
BSM (Blind Spot Monitor)
indicator ( →P. 260)
Cruise control “SET”
indicator ( →P. 243, 255)
*3Brake hold standby
indicator ( →P. 198)
(If equipped)
LKA indicator (→ P. 238)*3Brake hold operated
indicator (→P. 198)
*2, 8“AIR BAG
ON/OFF”
indicator ( →P. 46)
(U.S.A.)
Parking brake indicator
(→ P. 196)
*9Low outside temperature
indicator ( →P. 88)
(Canada)
Parking brake indicator
(→ P. 196)
“READY” indicator
( → P. 182)
EV indicator ( →P. 67)
EV drive mode indicator
(→ P. 187)
Eco drive mode indicator
(→ P. 258) “SPORT S” indicator
(
→ P. 258)
“SPORT S+” indicator
( → P. 258) “Customize” indicator
(
→ P. 258)
Snow mode indicator
( → P. 190)

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GS450h_OM_OM30G62U_(U)2. Instrument cluster
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Instrument cluster
Multi-information display
The multi-information display presents the driver with a variety of vehicle data.
●Menu icons
Displays the following informatio n when an icon is selected. (→P. 97)
Some of the information may be displayed automatically depending on the situa-
tion.
Drive information
Select to display various drive data. ( →P. 97)
Navigation system-linked display
Select to display the following na vigation system-linked information.
•Route guidance
• Compass display (north-up display/heading-up display)
Audio system-linked display
Select to enable selection of an audio source or track on the display using the
meter control switches.
Driving assist information
Select to display the cruise control or dynamic radar cruise control with full-
speed range/ LKA (Lane-Ke eping Assist) (if equipped) information, when the
system is used. ( →P. 234, 243, 255)
Warning message display
Select to display warning messages and measures to be taken if a malfunction is
detected. ( →P. 410)
Display contents
Except F SPORT modelsF SPORT models

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GS450h_OM_OM30G62U_(U)
2. Instrument cluster
●Vehicle speed
●Hybrid System Indicator(→P. 106)
●Tachometer
●Shift position and shift range
Displays the selected shift position or selected shift range (→ P. 189)
●Audio display*
Displays audio information for approximat ely 3 seconds when the audio system is
operated
●Route guidance display (→ P. 107)
When approaching an intersec tion while the navigation system is giving route guid-
ance, an arrow will automatically be displa yed to indicate the direction of travel.
●Lexus Enform (if equipped)
Displays “LEXUS Enform” for approximat ely 3 seconds when LEXUS App Suite is
operated
●Lane departure warning display (LKA [Lane-Keeping Assist])
(if equipped) ( →P. 411)
●Approach warning display (dynamic ra dar cruise control with full-speed
range) (if equipped) ( →P. 411)
●Pre-collision warning message (PCS [Pre-Collision System])
(if equipped) ( →P. 410)
●Speed limit display (→ P. 107)
*: The default setting is off
Head-up display contents

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4Driving
4-1. Before driving Driving the vehicle ...................... 168
Cargo and luggage .................... 176
Vehicle load limits ....................... 179
Trailer towing ................................180
Dinghy towing ............................... 181
4-2. Driving procedures Power (ignition) switch ............. 182
EV drive mode ............................. 187
Hybrid transmission ................... 189
Turn signal lever........................... 195
Parking brake ............................... 196
Brake Hold..................................... 198
4-3. Operating the lights and wipers
Headlight switch ........................ 200
Automatic High Beam ............ 203
Windshield wipers and washer.................................207 4-4. Refueling
Opening the fuel tank cap ...... 213
4-5. Using the driving support systems
Lexus Safety System+ ................ 217
PCS (Pre-Collision System) ......... 223
LKA (Lane-Keeping Assist) .......................................... 234
Dynamic radar cruise control with full-speed range ............. 243
Cruise control ............................. 255
Driving mode select switch ...258
BSM (Blind Spot Moni tor).............. 260
• The Blind Spot Monitor
function .................................... 263
• The Rear Cross Traffic Alert function ......................... 265
Driving assist systems .............. 268
4-6. Driving tips Hybrid vehicle driving tips ..... 274
Winter driving tips ..................... 276

GS450h_OM_OM30G62U_(U)
1934-2. Driving procedures
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Driving
■Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
●When the vehicle comes to a stop
●If the accelerator pedal is depressed fo r more than a certain period of time
●When the shift lever is shifted to other than D
■Downshifting restrictions warning buzzer
To help ensure safety and driving performance, downshifti ng operation may sometimes
be restricted. In some circum stances, downshifting may not be possible even when the
shift lever or paddle shif t switch is operated. (A buzzer will sound twice.)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if th e power switch is turned off after driving in
snow mode.
■When driving with cruise control or dynamic radar cruise control with full-speed range
activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not activate because crui se control, dynamic radar cruise control or
dynamic radar cruise control with full-speed range will not be canceled.
●While driving in the D position or S mode, downshifting to 7, 6, 5 or 4. ( →P. 243, 255)
●When switching the driving mode to spor t mode while driving in D position. (→P. 258)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is pe rformed, the hybrid system output may be
restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the acce lerator pedal depressed, a warning message appears on
the multi-information display. ( →P. 410)
• When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
■Shift lock system
The shift lock system is a system to prevent ac cidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only wh en the power switch is in ON mode and the
brake pedal is being depressed.
■If the shift lever cannot be shifted from P
First, check whether the brak e pedal is being depressed.
If the shift lever cannot be shifted with your foot on the brake pedal, there may be a prob-
lem with the shift lock system. Have the vehi cle inspected by your Lexus dealer immedi-
ately.
The following steps may be used as an emergency measure to ensure that the shift lever
can be shifted.
Releasing the shift lock:
Press the parking brake switch to chec k that the parking brake is set. (→P. 196)
Parking brake indicator will come on.
Turn the power switch to off.
Depress the brake pedal.
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GS450h_OM_OM30G62U_(U)4-5. Using the driving support systems
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Driving
Lexus Safety System+∗
◆PCS (Pre-Collision System)
→ P. 223
◆LKA (Lane-Keeping Assist)
→P. 234
◆Automatic High Beam
→P. 203
◆Dynamic radar cruise contro l with full-speed range
→ P. 243
∗: If equipped
The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfo rtable driving experience:
WARNING
■Lexus Safety System+
The Lexus Safety System+ is designed to operate under the assumption that the driver
will drive safely, and is designed to help reduce the impact to the occupants and the
vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of reco gnition accuracy and control performance that
this system can provide, do not overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicle’s surroundings and driving safely.