3
1
8 7
6
5
4
3
2
GS450h_300h_OM_OM30D53E_(EE)Power windows ................. 215
Moon roof ......................... 218
4-1. Before driving
Driving the vehicle ............ 224
Cargo and luggage............. 235
Trailer towing ((vehicles with-
out towing package))....... 236
Trailer towing (vehicles with
towing package))..............237
4-2. Driving procedures
Power (ignition) switch ..... 246
EV drive mode .................. 253
Hybrid transmission .......... 256
Turn signal lever ............... 264
Parking brake .................... 266
Brake Hold ........................ 269
Horn .................................. 271
4-3. Operating the lights and wipers
Headlight switch ............... 272
Automatic High Beam ...... 277
Fog light switch................. 283
Windshield wipers and
washer...............................285
Headlight cleaner switch ... 2924-4. Refueling
Opening the fuel tank cap . 293
4-5. Using the driving support sys-
tem
Cruise control .................... 298
Dynamic radar cruise con-
trol......................................302
Dynamic radar cruise control
with full-speed range........318
LKA (Lane-keeping Assist)335
Lexus (parking assist-sen-
sor)....................................345
Lexus (parking assist moni-
tor)....................................358
Driving mode select switch388
Driving assist systems ....... 393
PCS (Pre-Crash Safety sys-
tem)...................................402
BSM (Blind Spot Monitor) 414
• The Blind Spot Monitor
func-
tion.................................420
• The Rear Crossing Traffic
Alert function...................423
Lexus night view ............... 426
4-6. Driving tips
Hybrid vehicle driving tips 432
Winter driving tips ............ 434
4Driving
7
1
8 7
6
5
4
3
2
GS450h_300h_OM_OM30D53E_(EE)8-1. Specifications
Maintenance data (fuel, oil
level, etc.)........................926
Fuel information................ 940
8-2. Customization
Customizable features ....... 942
8-3. Items to initialize
Items to initialize............... 954
What to do if... (Troubleshoot-
ing))...................................956
Alphabetical index ............ 962
8Vehicle specifications
Index
For vehicles with a navigation system, refer to the “Navigation
System Owner’s Manual” for information regarding the naviga-
ti t
9
GS450h_300h_OM_OM30D53E_(EE)The installation of an RF-transmitter system in your vehicle could affect
electronic systems such as:
Multiport fuel injection system/sequential multiport fuel injection system
Dynamic radar cruise control with full-speed range 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 any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional for precautionary measures or spe-
cial instructions regarding installation of an RF-transmitter system.
Further information regarding frequency bands, power levels, antenna posi-
tions and installation provisions for the installation of RF-transmitters, is
available on request at any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
High voltage parts and cables on the hybrid vehicles emit approximately the
same amount of electromagnetic waves as the conventional gasoline pow-
ered vehicles or home electronic appliances despite of their electromagnetic
shielding.
Unwanted noise may occur in the reception of the radio frequency transmit-
ter (RF-transmitter).
The SRS airbag and seat belt pretensioner devices in your Lexus contain
explosive chemicals. If the vehicle is scrapped with the 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 dealer or
repairer, or another duly qualified and equipped professional before you
scrap your vehicle.
Installation of an RF-transmitter system
Scrapping of your Lexus
15Pictorial index
GS450h_300h_OM_OM30D53E_(EE)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Precautions against winter season. . . . . . . . . . . . . . . . . . . . . . . P. 434
To prevent freezing (windshield wiper de-icer)
*1 . . . . . . . . . . P. 500
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . . P. 722
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 929
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 753
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 936
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 434
Checking/rotation/tire pressure warning system
*1 . . . . . . . . . P. 753
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 870, 884
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Opening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Engine compartment cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 739
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 930
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 915
Warning messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 847
Headlights/front position lights/daytime running lights . . . . . . P. 272
Front fog lights
*1/rear fog light*2. . . . . . . . . . . . . . . . . . . . . . P. 283
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 264
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Stop lights
Brake Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 269
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 272
Back-up light
*2
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 256
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 800, Watts: P. 939)
*1: If equipped
*2: They may be located on the opposite side depending on the target region.
8
9
10
11
12
13
14
801-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
Hybrid system features
Gasoline engine
Electric motor (traction motor)
Your vehicle is a hybrid vehicle. It has characteristics different
from conventional vehicles. Be sure you are closely familiar with
the characteristics of your vehicle, and operate with care.
The hybrid system combines the use of a gasoline engine and an
electric motor (traction motor) according to driving conditions,
improving fuel efficiency and reducing exhaust emissions.
1
2
851-2. Hybrid system
1
GS450h_300h_OM_OM30D53E_(EE)
For safety and security
There are air intake vents on the
both sides of the rear seatback
for the purpose of cooling the
hybrid battery (traction battery).
If the vents become blocked, the
hybrid battery may overheat,
leading to a reduction in hybrid
battery output.
When a certain level of impact is detected by the impact sensor, the
emergency shut off system blocks off the high voltage current and
stops the fuel pump to minimize the risk of electrocution and fuel
leakage. If the emergency shut off system activates, your vehicle
will not restart. To restart the hybrid system, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
A message is automatically displayed when a malfunction occurs in
the hybrid system or an improper operation is attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
(P. 838)
Hybrid battery (traction battery) air vents
Emergency shut off system
Hybrid warning message
861-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
If a warning light comes on, a warning message is displayed, or the 12-volt
battery is disconnected
The hybrid system may not start. In that case, try to start the system again. If
the “READY” indicator does not come on, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be started,
refuel the vehicle with at least enough gasoline to make the low fuel level
warning light (P. 833) go off. If there is only a small amount of fuel, the
hybrid system may not be able to start. (The minimum amount of fuel to add
to make the low fuel level warning light go out is about 9.9 L [2.6 gal., 2.2
Imp.gal.], when the vehicle is on a level surface. This value may vary when
the vehicle is on a slope.)
Electromagnetic waves
High voltage parts and cables on the hybrid vehicles incorporate electro-
magnetic shielding, and therefore emit approximately the same amount of
electromagnetic waves as conventional gasoline powered vehicles or home
electronic appliances.
Your vehicle may cause sound interference in some third party-produced
radio parts.
Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of
the hybrid battery (traction battery) can change in accordance with driving
style and driving conditions.
Declaration of conformity
This model conforms to hydrogen emissions according to regulation ECE100
(Battery electric vehicle safety).
881-2. Hybrid system
GS450h_300h_OM_OM30D53E_(EE)
CAUTION
Road accident cautions
Observe the following precautions to reduce the risk of death or serious
injury:
Pull your vehicle off the road, apply the parking brake, shift the shift lever
to P, and turn the hybrid system off.
Do not touch the high voltage parts, cables and connectors.
If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
If a fluid leak occurs, do not touch the fluid as it may be strong alkaline
electrolyte from the hybrid battery (traction battery). If it comes into con-
tact with your skin or eyes, wash it off immediately with a large amount of
water or, if possible, boric acid solution. Seek immediate medical atten-
tion.
If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using
even a small amount of water may be dangerous.
If your vehicle needs to be towed, do so with rear wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause an electricity leakage leading to a fire. (P. 822)
Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.