cruise control Lexus GS300h 2017 Owner's Manual

3
1 8
7
6
5
4
3
2
GS450h_300h_OM_OM30F92E_(EE) 3-5. Opening, closing the
windows and moon roof
Power windows............................ 193
Moon roof ...................................... 196
4-1. Before driving Driving the vehicle .................... 200
Cargo and luggage .................. 208
Trailer towing (vehicles without towing package) .....209
Trailer towing (vehicles with towing package)....................... 210
4-2. Driving procedures Power (ignition) switch ..............217
EV drive mode ............................ 222
Hybrid transmission .................. 224
Turn signal lever .......................... 231
Parking brake ..............................232
Brake Hold....................................235
4-3. Operating the lights and wipers
Headlight switch ......................... 237
AHS (Adaptive High-beam System)......................................... 241
Automatic High Beam ............. 246
Fog light switch .......................... 250
Windshield wipers and washer.................................. 251 4-4. Refueling
Opening the fuel tank cap...... 257
4-5. Using the driving support systems
Lexus Safety System+ ............... 261
PCS (Pre-Crash Safety system)......................................... 270
LKA (Lane-Keeping Assist)...........................................282
RSA (Road Sign Assist)............ 291
Dynamic radar cruise control with full-speed
range ............................................ 296
Cruise control ............................ 308
Driving mode select switch.......311
BSM (Blind Spot Monitor) ...... 314

9
GS450h_300h_OM_OM30F92E_(EE) The installation of an RF-transmitter system
in your vehicle could affect electronic sys-
tems such as:
●Multiport fuel injection system/seque ntial multiport fuel injection system
●Dynamic radar cruise control with full-speed range system
●Cruise control system
●Anti-lock brake system
●Vehicle dynamics integrated management
●SRS airbag system
●Seat belt pretensioner system
Be sure to check with any authorized Lexus re tailer or Lexus authorized repairer, or any
reliable repairer for precautionary measures or special instructions regarding installation
of an RF-transmitter system.
Further information regarding frequency ba nds, power levels, antenna positions and
installation provisions for the installation of RF-transmitters, is available on request at any
authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer.
High voltage parts and cables on the hybrid 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 radio frequency transmitter (RF-trans-
mitter).
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with th e airbags and seat belt pretensioners left as
they are, this may cause an accident such as fire. Be sure to have the systems of the SRS
airbag and seat belt pretensioner removed and disposed of by a qualified service shop or
by any authorized Lexus retailer or Lexus au thorized repairer, or any reliable repairer
before you scrap your vehicle.
Installation of an RF-transmitter system
Scrapping of your Lexus
Your vehicle contains batteries and/or accumulators. Do not discard them into the
environment but cooperate with separate collection
(Directive 2006/66/EC).

20Pictorial index
GS450h_300h_OM_OM30F92E_(EE) Audio remote control switches
*1
Paddle shift switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 226
Talk switch *1
Meter control switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 112
Vehicle-to-vehicle distance button *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 302
Cruise control switch
Cruise control *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 308
Dynamic radar cruise cont rol with full-speed range*2
. . . . . . . . . . . . . . . . . P. 296
LKA (Lane-Keeping Assist) switch *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 282
Telephone switches *1
1
2
3
4
5
6
7
8

28Pictorial index
GS450h_300h_OM_OM30F92E_(EE) Audio remote control switches
*1
Paddle shift switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 226
Talk switch *1
Meter control switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 112
Vehicle-to-vehicle distance button *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 302
Cruise control switch
Cruise control *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 308
Dynamic radar cruise cont rol with full-speed range*2
. . . . . . . . . . . . . . . . . P. 296
LKA (Lane-Keeping Assist) switch *2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 282
Telephone switches *1
1
2
3
4
5
6
7
8

101
2. Instrument cluster
2
Instrument cluster
GS450h_300h_OM_OM30F92E_(EE) The indicators inform the driver of the operating state of the vehicle’s variou
s sys-
tems.
Indicators
Turn signal indicator (  P. 231) Rear fog light indicator(
 P. 250)
Tail light indicator (  P. 237) Cruise control indicator (
 P. 304, 308)
Headlight high beam
indicator ( P. 238)
(If equipped)
Dynamic radar cruise
control indicator ( P. 296)
(If equipped)
Automatic High Beam
indicator ( P. 246)/
Adaptive High-beam
System indicator (  P. 242) Cruise control “SET”
indicator (
P. 296, 308)
Front fog light indicator(  P. 250)
(If equipped)
LKA indicator ( P. 286)
* 1
(If equipped)
Lexus parking assist-sensor
indicator *
2
Brake hold operated
indicator ( P. 235)
* 3
(If equipped)
“AFS OFF” indicator(
 P. 239) *
3, 4“PASSENGER AIR
BAG” indicator (
 P. 54)
* 2, 5
Slip indicator ( P. 326) *
6
Low outside temperature
indicator (
P. 104)
* 2
VSC OFF indicator ( P. 327)
“READY” indicator ( P. 217)
* 3, 7
(If equipped)
PCS (Pre-Crash Safety
system) warning light (
 P. 273) EV indicator ( P. 78)

1202. Instrument cluster
GS450h_300h_OM_OM30F92E_(EE) ●
Vehicle speed
● Hybrid System Indicator ( P. 123)
● Tachometer
● Shift position and shift range
Displays the selected shift position or selected shift range ( P. 224)
● Road signs recognized by the RS A (Road Sign Assist) (if equipped)
( P. 291)
● Audio display *
Displays audio information for approximat ely 3 seconds when the audio system is
operated
● Route guidance display (vehicles with navigation system) ( P. 123)
When approaching an intersection while the navigation system is giving route guid-
ance, an arrow will automatically be displa yed to indicate the direction of travel.
● Lane departure warning display (LKA [Lane-Keeping Assist])
(if equipped) ( P. 467)
● Approach warning display (dynamic radar cruise control with full-speed
range) (if equipped) ( P. 467)
● Pre-crash warning message (PCS [Pre-Crash Safety system])
(if equipped) ( P. 466)
* : The default setting is off
Head-up display contents

199
4Driving
GS450h_300h_OM_OM30F92E_(EE) 4-1. Before driving
Driving the vehicle.................... 200
Cargo and luggage .................. 208
Trailer towing (vehicles without towing package) .....209
Trailer towing (vehicles with towing package)....................... 210
4-2. Driving procedures Power (ignition) switch ..............217
EV drive mode ............................ 222
Hybrid transmission .................. 224
Turn signal lever .......................... 231
Parking brake .............................. 232
Brake Hold....................................235
4-3. Operating the lights and wipers
Headlight switch ......................... 237
AHS (Adaptive High-beam System)......................................... 241
Automatic High Beam ............. 246
Fog light switch .......................... 250
Windshield wipers and washer.................................. 251 4-4. Refueling
Opening the fuel tank cap ..... 257
4-5. Using the driving support systems
Lexus Safety System+ ................261
PCS (Pre-Crash Safety system) ........................................ 270
LKA (Lane-Keeping Assist) .......................................... 282
RSA (Road Sign Assist) ............291
Dynamic radar cruise control with full-speed
range ............................................ 296
Cruise control ............................ 308
Driving mode select switch ...... 311
BSM (Blind Spot Monitor) ...... 314

215
4-1. Before driving
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Passing other vehicles
Consider the total combined length of your vehicle and trailer and ensure that
the vehicle-to-vehicle distance is sufficient before executing lane change s.
■Transmission information
To maintain engine braking efficiency, when using engine braking, when driv-
ing on a long steep downgrade, do not use the transmission in D. (P. 227)
■If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures exceeding 30 C (85 F) may result in the engine overheating. If the engine coolant tem-
perature gauge indicates that the engine is overheating, turn the air condition-
ing off immediately, leave the road and stop the vehicle in a safe place. (  P. 535)
■When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle and trailer.
Firmly set the parking brake and shift the shift lever to P.
WARNING
Follow all the instructions described in this se ction. Failure to do so could cause an acci-
dent resulting in death or serious injury.
■Trailer towing precautions
When towing, make sure that none of the weight limits are exceeded. ( P. 211)
■To avoid accident or injury
●Do not tow a trailer when the compact spare tire is installed on your vehicle.
●Do not tow a trailer when the tire installed is repaired with the emergency tire punc-
ture repair kit.
●Do not use cruise control (if equipped) or dynamic radar cruise control with full-
speed range (if equipped) when trailer towing.
■Vehicle speed in towing
Observe the legal maximum speeds for trailer towing.
■Before descending hills or long declines
Reduce speed and downshift. However, never downshift suddenly while descending
steep or long downhill grades.
■Operation of the brake pedal
Do not hold the brake pedal depressed often or for long periods of time.
Doing so may result in the brake ov erheating or reduce braking effects.

2284-2. Driving procedures
GS450h_300h_OM_OM30F92E_(EE)
■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 for 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, downshifting operation may sometimes
be restricted. In some circumstances, downsh ifting may not be possible even when the
shift lever or paddle shift switch is operated. (A buzzer will sound twice.)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the 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 or dynamic radar cruise control
with full-speed range will not be canceled.
●GS450h: While driving in the D position or S mode, downshifting to 7, 6, 5 or 4. (  P. 296, 308)
●GS300h: While driving in the D position, downshifting to 5 or 4. ( P. 296, 308)
●When switching the driving mode to sport mode while driving in D position. ( P. 311)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be
restrained.

261
4
4-5. Using the driving support systems
Driving
GS450h_300h_OM_OM30F92E_(EE)
Lexus Safety System+
◆PCS (Pre-Crash Safety system) 
P. 270
◆LKA (Lane-Keeping Assist) P. 282
◆AHS (Adaptive High-beam System) 
 P. 241
◆Automatic High Beam 
 P. 246
◆RSA (Road Sign Assist) P. 291
◆Dynamic radar cruise control with full-speed range P. 296
: If equipped
The Lexus Safety System+ consists of the following drive assist systems and
contributes to a safe and comfortable 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 no t overly rely on this system. The driver is always responsi-
ble for paying attention to the vehicle’s surroundings and driving safely.