2019 LEXUS GS300H Assis parking

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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
•The Blind Spot Monitor
function...................................... 319
• The Rear Crossing Traffic
Alert function .......................... 321
Driving assist systems...............324
4-6. Driving tips
Hybrid vehicle driving tips....... 331
Winter driving tips .....................334
4Driving

TABLE OF CONTENTS6
GS450h_300h_OM_OM30F92E_(EE)
8-1. Specifications
Maintenance data
(fuel, oil level, etc.)...................546
Fuel information ......................... 559
8-2. Customization
Customizable features ............. 561
8-3. Initialization
Item to initialize ........................... 576
What to do if...
(Troubleshooting) ...............................578
Alphabetical index................................ 582
8Vehicle specifications
Index
For information regarding the equipment listed below, refer to the “NAVIGA-
TION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
• Audio system
• Lexus parking assist-sensor
• Navigation system
• Lexus parking assist monitor
Toyota Motor Europe NV/SA, Avenue du Bourget 60 - 1140 Brussels,
Belgium www.toyota-europe.com

21Pictorial index
GS450h_300h_OM_OM30F92E_(EE)
Seat heater switches*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Seat ventilator switches*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Remote Touch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 340
Lexus parking assist-sensor switch*1, 2
Rear sunshade switch*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 380
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 311
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
*1: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
*2: If equipped
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29Pictorial index
GS450h_300h_OM_OM30F92E_(EE)
Rear sunshade switch*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 380
Lexus parking assist-sensor switch*1, 2
Remote Touch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 340
Seat heater switches*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Seat ventilator switches*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 362
Driving mode select switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 311
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 225
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 222
*1: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
*2: If equipped
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1012. Instrument cluster
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Instrument cluster
GS450h_300h_OM_OM30F92E_(EE)
The indicators inform the driver of the operating state of the vehicle’s various 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)*6Low outside temperature indicator ( P. 104)
*2VSC 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)

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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
•The Blind Spot Monitor
function ..................................... 319
• The Rear Crossing Traffic
Alert function...........................321
Driving assist systems .............. 324
4-6. Driving tips
Hybrid vehicle driving tips ...... 331
Winter driving tips ..................... 334

3284-5. Using the driving support systems
GS450h_300h_OM_OM30F92E_(EE)
■Sounds and vibrations caused by the ABS, brake assist, VSC, Hill-start assist control, TRC and VGRS systems
Any of the following conditions may occur when the above systems are operating. None
of these indicates that a malfunction has occurred.
●Vibrations may be felt through the vehicle body and steering.
●A motor sound may be heard after the vehicle comes to a stop.
■ECB operation sound
ECB operating sound may be heard in the follow ing cases, but it does not indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal is oper-ated.
●Motor sounds of the brake system heard from the front part of the vehicle when the
driver’s door is opened.
●Operating sound heard from the engine compartment when one or two minutes passed after the stop of the hybrid system.
■EPS, VGRS and DRS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard. This does not indicate a malfunction.
■Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems will be automatically re-enabled in the following situations:
●When the power switch is turned off
●If only the TRC system is turned off, the TR C will turn on when vehicle speed increases If both TRC and VSC systems are turned off, automatic re-enabling will not occur when
vehicle speed increases.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheating when there is frequent steering input over an extended period of time. The steeringwheel may feel heavy as a result. Should this occur, refrain from excessive steering input
or stop the vehicle and turn the hybrid system off. The EPS system should return to nor- mal within 10 minutes.
■Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will operate;
●The shift lever is in a position other than N or P (when starting off forward/backward on an upward incline).
●The vehicle is stopped.
●The accelerator pedal is not depressed.
●The parking brake is not engaged.

3294-5. Using the driving support systems
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
■Automatic system cancelation of hill-start assist control
The hill-start assist control will be canc eled in any of the following situations;
●The shift lever is shifted to N or P.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●Approximately 2 seconds elapse after the brake pedal is released.
■Operating conditions of emergency brake signal
When the following three conditions are me t, the emergency brake signal will operate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h (35 mph).
●The brake pedal is depressed in a manner that cause the system to judge from the vehi- cle deceleration that this is a sudden braking operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will turn of f in any of the following situations:
●The emergency flashers are turned on.
●The brake pedal is released.
●The system judges from the vehicle deceleration that is not a sudden braking operation.
WARNING
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operating may exceed that of normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always maintain a safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill-start assist control does not operate effectively when
●Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist co ntrol is not intended to hold the vehicle stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.