2010 Lexus GS450h brake

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GS_HV_U (OM30C81U)
February 1, 2010 10:54 am
2-1. Driving procedures
Driving the vehicle ........................ 140
Power (ignition) switch ............... 150
Transmission ................................... 154
Turn signal lever ............................ 158
Parking brake ................................. 159
Horn.................................................... 160
2-2. Instrument cluster
Gauges and meters ....................... 161
Indicators and warning 
lights................................................. 165
Multi-information display........... 168
2-3. Operating the lights and 
windshield wipers
Headlight switch .............................. 171
Fog light switch .............................. 174
Windshield wipers and 
washer............................................. 175
Headlight cleaner switch ........... 1802-4. Using other driving systems
Cruise control ................................. 181
Dynamic radar cruise 
control............................................. 185
Intuitive parking assist ................. 197
Rear view monitor system ......... 210
AVS (Adaptive Variable 
Suspension System) .................. 213
Driving assist systems.................. 214
PCS 
(Pre-Collision System) ............ 221
2-5. Driving information
Cargo and luggage ..................... 228
Vehicle load limits........................ 232
Winter driving tips ....................... 233
Trailer towing ................................. 238
Dinghy towing ............................... 239
3-1. Using the touch screen
Touch screen ................................. 242
Setting the touch screen ........... 248
2When driving
3Interior features

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GS_HV_U (OM30C81U)
January 28, 2010 10:42 am
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch P. 171
P. 158
P. 174
Gauges and meters P. 161
Multi-information display P. 168Windshield wipers and
washer switch
P. 175
Power (ignition) switch
P. 150
Parking brake pedal P. 159
Trunk opener main switch
P. 60
Glove box
P. 400
Hood lock release lever P. 457
Trunk opener P. 60
Fuel filler door opener P. 94
Horn P. 160
Pre-collision braking off switch
P. 221

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GS_HV_U (OM30C81U)
January 28, 2010 8:25 am
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the hybrid system, multiport fuel injection system/
sequential multiport fuel injection system, dynamic radar cruise control system,
cruise control system, anti-lock brake system, vehicle dynamics integrated manage-
ment, SRS airbag system and seat belt pretensioner system, be sure to check with
your Lexus dealer for precautionary measures or special instructions regarding
installation.
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 mobile two-way radio.
Scrapping of your Lexus
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 your Lexus dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.

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1-1. Hybrid system
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Before driving
GS_HV_U (OM30C81U)
February 12, 2010 8:52 am
■When stopped/during take-off
The gasoline engine stops when the vehicle is stopped. During take-
off, the electric motor (traction motor) drives the vehicle. At slow
speeds or when traveling down a gentle slope, the engine is stopped
and the motor is used.
■During normal driving
The gasoline engine is predominantly used. The electric motor
(traction motor) charges the hybrid battery as necessary.
■When accelerating sharply
The power of the hybrid battery (traction battery) is added via elec-
tric motor (traction motor) to that of the gasoline engine.
■When braking (Regenerative brake)
The electric motor (traction motor) charges the hybrid battery
(traction battery).

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1-1. Hybrid system
GS_HV_U (OM30C81U)
February 12, 2010 8:52 am
■Regenerative braking
The motor generator converts kinetic energy to electric energy when:
●The accelerator pedal is released.
●The brake pedal is depressed with the shift lever in “D” or “S”.
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop auto-
matically in the following conditions:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●During low or high hybrid battery (traction battery) temperature
■Charging the 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 will slowly discharge. For this rea-
son, be sure to drive the vehicle at least once every few months for at least 30
minutes or 10 miles (16 km). If the hybrid battery becomes fully discharged and
you are unable to jump-start the vehicle with the 12 volt battery, contact your
Lexus dealer.
●If the shift lever is in “N”, the hybrid battery (traction battery) will not be
charged. When driving in heavy traffic, operate the vehicle with the shift lever in
“D” or “S” to avoid discharging the battery.

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1-1. Hybrid system
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Before driving
GS_HV_U (OM30C81U)
February 12, 2010 8:52 am
■After the 12 volt battery has discharged or has been changed or removed
The gasoline engine may not stop even if the vehicle is running on the hybrid battery
(traction battery). If this continues for a few days, contact your Lexus dealer.
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to
move. Always put the shift lever in “P” when parked.
The following sounds or vibrations 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
seat when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmission when the hybrid system starts or
stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard from the regenerative brake when you press the brake
pedal.
●Vibration may be felt when the gasoline engine starts or stops.
●You may hear cooling fan sounds coming from the air intake vents behind the
rear seat.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding maintenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.

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1-1. Hybrid system
GS_HV_U (OM30C81U)
February 12, 2010 8:52 am
CAUTION
■Road accident cautions
Observe the following precautions to reduce the risk of injury.
●Pull your vehicle off the road, put the shift lever in “P”, apply the parking brake,
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 it 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 electric fires. Using even a small
amount of water may be dangerous.
●If your vehicle needs to be towed, do so with the rear wheels raised. If the wheels
with 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. 5 2 3 )
●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.

When driving2
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GS_HV_U (OM30C81U)
January 28, 2010 11:27 am
2-1. Driving procedures
Driving the vehicle.................. 140
Power (ignition) switch .......... 150
Transmission.............................. 154
Turn signal lever ....................... 158
Parking brake ........................... 159
Horn ............................................ 160
2-2. Instrument cluster
Gauges and meters ................. 161
Indicators and warning 
lights ......................................... 165
Multi-information display ..... 1682-3. Operating the lights and 
windshield wipers
Headlight switch ....................... 171
Fog light switch ......................... 174
Windshield wipers and 
washer ...................................... 175
Headlight cleaner switch ..... 180
2-4. Using other driving systems
Cruise control........................... 181
Dynamic radar cruise 
control ..................................... 185
Intuitive parking assist ............ 197
Rear view monitor system .... 210
AVS (Adaptive Variable 
Suspension System) ............ 213
Driving assist systems ............ 214
PCS 
(Pre-Collision System) ....... 221
2-5. Driving information
Cargo and luggage ............... 228
Vehicle load limits .................. 232
Winter driving tips ................. 233
Trailer towing .......................... 238
Dinghy towing......................... 239