2016 Lexus GS450h parking brake

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GS450h_OM_OM30E99U_(U)
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4-1. Before drivingDriving the vehicle ......................166
Cargo and luggage......................174
Vehicle load limits ........................ 177
Trailer towing ................................. 178
Dinghy towing ............................... 179
4-2. Driving procedures Power (ignition) switch ............. 180
EV drive mode ............................. 185
Hybrid transmission .................... 187
Turn signal lever ............................192
Parking brake ................................193
Brake Hold .....................................195
4-3. Operating the lights and wipers
Headlight switch .......................... 197
Automatic High Beam.............200
Windshield wipers and washer ................................ 204 4-4. Refueling
Opening the fuel tank cap ...... 210
4-5. Using the driving support systems
Lexus Safety System+ ................ 214
PCS (Pre-Collision System) ......... 220
LKA (Lane-Keeping Assist) .......................................... 232
Dynamic radar cruise control with full-speed range............... 241
Cruise control ............................. 253
Driving mode select switch ... 256
BSM (Blind Spot Monitor) ............. 258
• The Blind Spot Monitor function ...................................... 261
• The Rear Cross Traffic Alert function ........................ 263
Driving assist systems .............. 266
4-6. Driving tips Hybrid vehicle driving tips ...... 272
Winter driving tips ...................... 274
4Driving

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GS450h_OM_OM30E99U_(U)
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6-3. Do-it-yourself maintenanceDo-it-yourself service precautions................................ 345
Hood ............................................... 347
Positioning a floor jack.............348
Engine compartment ............... 349
12-volt battery ............................. 358
Tires.................................................... 361
Tire inflation pressure ............... 370
Wheels ............................................373
Air conditioning filter ................375
Electronic key battery...............377
Checking and replacing fuses...............................................379
Headlight aim (vehicles with single-beam head lights) ...... 384
Light bulbs .................................... 386
7-1. Essential information Emergency flashers .................. 392
If your vehicle has to be stopped in an emergency.... 393 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 394
If you think something is wrong ................ 399
If a warning light turns on or a warning buzzer sounds.....400
If a warning message is displayed ................................ 406
If you have a flat tire ...................437
If the hybrid system will not start ............................... 446
If the shift lever cannot be shifted from P ..................... 448
If the parking brake cannot be released ................................ 449
If the electronic key does not operate properly ....................... 451
If the 12-volt battery is discharged............................. 453
If your vehicle overheats ..........457
If the vehicle becomes stuck ..............................................462
7When trouble arises

17Pictorial index
GS450h_OM_OM30E99U_(U)
Multi-information display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 93
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 93
Energy monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 1 0 7
When the warning messages are displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406
Parking brake switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 193
Applying/releasing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P . 193
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 275
Warning buzzer/message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 400, 402
Turn signal lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P . 192
Headlight switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 197
Headlights/parking lights/tail lights/daytime running lights . . . . . . . . . . . . . . P. 197
Windshield wiper and washer switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 204
Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 57
Headlight cleaners
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205, 207
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 42 6
Emergency flasher switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 392
Trunk opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 1 2 6
Hood lock release lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 347
Tilt and telescopic steering contro l switch . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
Driving position memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 143
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 285
Rear window defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 291
Audio system*2
Trunk opener main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 128
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
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681-2. Hybrid system
GS450h_OM_OM30E99U_(U)
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop automati-
cally in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the heater is switched on
■Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the battery does not
need to be charged from an outside source. However, if the vehicle is left parked for a
long time the hybrid battery (traction battery) will slowly discharge. For this reason, be
sure to drive the vehicle at least once ever y few months for at least 30 minutes or 10
miles (16 km). If the hybrid battery (tractio n battery) becomes fully discharged and you
are unable to start the hybrid system, contact your Lexus dealer.
■Charging the 12-volt battery
 P. 4 5 5
■After the 12-volt battery has discharged or when the terminal has been removed and
installed during exchange, etc.
The gasoline engine may not stop even if the ve hicle is being driven by the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■Sounds and vibrations spec ific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For safety, apply the parking brake and make sure
to shift the shift lever to P when parked.
The following sounds or vibrat ions may occur when the hybrid system is operating and
are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
●Relay operating sounds such as a snap or soft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear seats, when the hybrid system is started or
stopped.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission wh en the gasoline engine starts or stops,
when driving at low speeds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released.
●Vibration may be felt when the gasoline engine starts or stops.
●Cooling fan sounds may be heard from the air intake vents on the both sides of the rear
seatback.

721-2. Hybrid system
GS450h_OM_OM30E99U_(U)
WA R N I N G
■High voltage precautions
This vehicle has high voltage DC and AC systems as well as a 12-volt system. DC and
AC high voltage is very dangerous and can cause severe burns and electric shock that
may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables or their
connectors.
●The hybrid system will become hot after starting as the system uses high voltage. Be
careful of both the high voltage and the hi gh temperature, and always obey the warn-
ing labels attached to the vehicle.
■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 contact with your skin or
eyes, wash it off immediately with a large amount of water or, if possible, boric acid
solution. Seek immediate medical attention.
●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 el ectric 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 con-
nected to the electric motor (traction motor) are on the ground when towing, the
motor may continue to generate electricity. This may cause a fire. ( P. 3 9 4 )
●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.
●Never try to open the service plug access
hole located behind the rear seats. The ser-
vice plug is used only when the vehicle is ser-
viced and is subject to high voltage.

GS450h_OM_OM30E99U_(U)
812. Instrument cluster
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Instrument cluster
Warning lights inform the driver of malfunctions in the indicated vehicle systems.
Warning lights
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(U.S.A.)
Brake system warning light
( P. 400)*1
Slip indicator ( P. 4 0 1 )
*1
(Canada)
Brake system warning light
( P. 400)*2, 3
(If equipped)
“AFS OFF” indicator
( P. 4 0 1 )
*2, 4Charging system warning
light ( P. 400)*1, 3Brake hold operated
indicator ( P. 4 0 1 )
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(U.S.A.)
Malfunction indicator lamp
( P. 400)*3
(U.S.A.)
Parking brake indicator
( P. 4 0 2 )
*2
(Canada)
Malfunction indicator lamp
( P. 400)*3
(Canada)
Parking brake indicator
( P. 4 0 2 )
*2SRS warning light
( P. 400)*1Brake system warning light
( P. 4 0 2 )
*1
(U.S.A.)
ABS warning light
( P. 400)Low fuel level warning light
( P. 4 0 2 )
*1
(Canada)
ABS warning light
( P. 400)Seat belt reminder light
( P. 4 0 2 )
*2Electric power steering
system warning light
( P. 4 0 1 )*2Master warning light
( P. 4 0 2 )
*2, 3
(If equipped)
PCS (Pre-Collision
System) warning light
( P. 4 0 1 )*2Tire pressure warning light
( P. 4 0 2 )

GS450h_OM_OM30E99U_(U)
832. Instrument cluster
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Instrument cluster
●Drive mode indicators
Except F SPORT modelsCruise control “SET”
indicator (
P. 2 4 1 , 2 5 3 )
*3Brake hold standby
indicator ( P. 1 9 5 )
(If equipped)
LKA (Lane-Keeping Assist)
indicator ( P. 2 3 6 )*3Brake hold operated
indicator ( P. 1 9 5 )
*8Security indicator
( P. 74, 77)
(U.S.A.)
Parking brake indicator
( P. 1 9 3 )
*9Low outside temperature
indicator ( P. 8 6 )
(Canada)
Parking brake indicator
( P. 1 9 3 )
“READY” indicator
(  P. 1 8 0 )
*2, 8“AIR BAG ON/OFF”
indicator ( P. 4 6 )
EV indicator ( P. 6 7 )
EV drive mode indicator
( P. 1 8 5 )
Eco drive mode indicator
( P. 2 5 6 ) “SPORT S” indicator
(
 P. 2 5 6 )
“SPORT S+” indicator
(  P. 2 5 6 ) “Customize” indicator
(
 P. 2 5 6 )
Snow mode indicator
(  P. 1 8 8 )

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GS450h_OM_OM30E99U_(U)
4Driving
4-1. Before driving Driving the vehicle ...................... 166
Cargo and luggage ..................... 174
Vehicle load limits ........................177
Trailer towing ................................. 178
Dinghy towing............................... 179
4-2. Driving procedures Power (ignition) switch..............180
EV drive mode ............................. 185
Hybrid transmission ................... 187
Turn signal lever ........................... 192
Parking brake ................................ 193
Brake Hold ..................................... 195
4-3. Operating the lights and wipers
Headlight switch ...........................197
Automatic High Beam ............ 200
Windshield wipers and washer .................................204 4-4. Refueling
Opening the fuel tank cap ...... 210
4-5. Using the driving support systems
Lexus Safety System+ ................214
PCS (Pre-Collision System).......... 220
LKA (Lane-Keeping Assist) .......................................... 232
Dynamic radar cruise control with full-speed range ............... 241
Cruise control ............................. 253
Driving mode select switch ... 256
BSM (Blind Spot Moni tor)..............258
• The Blind Spot Monitor
function ...................................... 261
• The Rear Cross Traffic Alert function......................... 263
Driving assist systems............... 266
4-6. Driving tips Hybrid vehicle driving tips.......272
Winter driving tips ...................... 274