Page 4 of 862

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GS450h_U (OM30D01U)
3-5. Opening, closing the windows and moon roof
Power windows.............................164
Moon roof ....................................... 167
4-1. Before driving Driving the vehicle ...................... 172
Cargo and luggage.................... 183
Vehicle load limits ....................... 186
Trailer towing ................................. 187
Dinghy towing .............................. 188
4-2. Driving procedures Power (ignition) switch ............. 189
EV drive mode ..............................196
Hybrid transmission................... 199
Turn signal lever .......................... 205
Parking brake .............................. 207
Brake Hold .................................... 210
Horn ..................................................212
4-3. Operating the lights and wipers
Headlight switch ..........................213
Fog light switch ............................ 218
Windshield wipers and washer ..................................219
Headlight cleaner switch ........ 226 4-4. Refueling
Opening the fuel tank cap ......227
4-5. Using the driving support systems
Cruise control ............................. 232
Dynamic radar cruise control............................ 236
LKA (Lane-Keeping Assist) ............251
Intuitive parking assist ................ 261
Rear view monitor system ....... 274
Driving mode select switch ... 286
Driving assist systems .............. 289
PCS (Pre-Collision System) ......... 296
BSM (Blind Spot Monitor) .............305
Lexus night view ............................ 311
4-6. Driving tips Hybrid vehicle driving tips ....... 317
Winter driving tips .......................319
4Driving
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Page 9 of 862

8
GS450h_U (OM30D01U)
For your information
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the 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
coming from under the vehicle for several minutes. This is the sound of a fuel evapo-
ration leakage check and, it does not indicate a malfunction.
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for 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 perfor-
mance problems resulting from the modification may not be covered under war-
ranty.
Main Owner’s Manual
Noise from under vehicle after turning off the hybrid system
Accessories, spare parts and modification of your Lexus
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Page 19 of 862

18Pictorial index
GS450h_U (OM30D01U)
■Instrument panel
Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 189
Starting the hybrid system/changing the modes. . . . . . . . . . . . . . . . . . . . . P. 189
Emergency stop of the hybrid system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 703
When the hybrid system will not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 762
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 742
Shift lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 199
Changing the shift position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 199
Precautions against towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 704
When the shift lever does not move. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 764
Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 89
Reading the meters/adjusting the instrument panel light . . . . . . . . . . . . . P. 89
Warning lights/indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 84
When the warning lights come on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 7111
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Page 24 of 862

23Pictorial index
GS450h_U (OM30D01U)
Seat heater switches*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 590
Seat ventilator switches
*2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 591
Intuitive parking assist switch
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 261
Rear sunshade switch
*2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 594
Driving mode select switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 286
EV drive mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 196
Snow mode switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 200
*1: Refer to “Navigation System Owner’s Manual”.
*2: If equipped
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Page 29 of 862
281-1. For safe use
GS450h_U (OM30D01U)
Before driving
Use only floor mats designed specifically for vehicles of the same model
and model year as your vehicle. Fix them securely in place onto the car-
pet.Insert the retaining hooks (clips)
into the floor mat eyelets.
Turn the upper knob of each
retaining hook (clip) to secure the
floor mats in place.
*: Always align the marks.
The shape of the retaining hooks (clips) may differ from that shown in the illustra-
tion.
Floor mat
1
*
2
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Page 30 of 862

291-1. For safe use
GS450h_U (OM30D01U)
1
For safety and security
CAUTION
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering with the
pedals while driving. An unexpectedly high speed may result or it may become diffi-
cult to stop the vehicle, leading to an accident, or leading to death or a serious injury.
■When installing the driver’s floor mat
●Do not use floor mats designed for other models or different model year vehicles,
even if they are Lexus Genuine floor mats.
●Only use floor mats designed for the driver’s seat.
●Always install the floor mat securely using the retaining hooks (clips) provided.
●Do not use two or more floor mats on top of each other.
●Do not place the floor mat bottom-side up or upside-down.
■Before driving
●Check that the floor mat is securely fixed in
the correct place with all the provided
retaining hooks (clips). Be especially care-
ful to perform this check after cleaning the
floor.
●With the hybrid system stopped and the
shift lever in P, fully depress each pedal to
the floor to make sure it does not interfere
with the floor mat.
GS450h_U.book Page 29 Monday, January 23, 2012 10:20 AM
Page 63 of 862
621-1. For safe use
GS450h_U (OM30D01U)
■Rear-facing Infant seat/convertible seat
Place the child restraint system
on the rear seat facing the rear
of the vehicle.
Run the seat belt through the
child restraint system and
insert the plate into the buckle.
Make sure that the belt is not
twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in lock mode. In lock mode, the
belt cannot be extended.
Installing child restraints using a seat belt (child restraint lock
function belt)
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GS450h_U.book Page 62 Monday, January 23, 2012 10:20 AM
Page 65 of 862
641-1. For safe use
GS450h_U (OM30D01U)Run the seat belt through the
child restraint system and
insert the plate into the buckle.
Make sure that the belt is not
twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in lock mode. In lock mode, the
belt cannot be extended.
While pushing the child
restraint system into the rear
seat, allow the shoulder belt to
retract until the child restraint
system is securely in place.
After the shoulder belt has
retracted to a point where there is
no slack in the belt, pull the belt to
check that it cannot be extended.
If the child restraint has a top tether strap, the top tether strap should
be latched onto the top tether strap anchor. (
→P. 66)
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GS450h_U.book Page 64 Monday, January 23, 2012 10:20 AM