2010 Lexus GS450h Using The Audio System / LEXUS 2010 GS450H OWNERS MANUAL (OM30C81U)

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When driving
GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Electronic key battery depletion
P. 4 7
■When the electronic key battery is discharged
P. 4 9 4
■Conditions affecting operation
P. 4 5
CAUTION
■When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not press the
accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehicle,
push and hold the “POWER” switch for more than 3 seconds.
However, do not touch the "POWER" switch while driving except in an emergency.
Turning the hybrid system off while driving will not cause loss of steering or braking
control, but the power assist to these systems will be lost. This will make it more diffi-
cult to steer and brake, so you should pull over and stop the vehicle as soon as it is
safe to do so.
NOTICE
■To prevent 12 volt battery discharge
Do not leave the “POWER” switch in ACCESSORY or ON mode for long periods
without the hybrid system on.
■When starting the hybrid system
●Do not race the hybrid system.
●If the hybrid system becomes difficult to start or stalls frequently, have the hybrid
system checked immediately.

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Transmission
Select a shift position appropriate for the driving conditions.
■Shifting the shift lever
While the “POWER” switch is in ON mode, depress the brake
pedal and move the shift lever.
■Shift position uses
*1: To improve fuel consumption and reduce noises, set the shift lever in the
“D” position for normal driving.
*2: By selecting shift ranges using “S” mode, you can control engine braking
forces.
Shift positionFunction
PParking the vehicle or starting the hybrid system
RReversing
NNeutral
DNormal driving*1
S“S” mode driving*2 (P. 1 5 6 )

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GS_HV_U (OM30C81U)
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■Selecting a driving mode
The following patterns can be selected to suit current driving and
operating conditions.
Power mode
For powerful acceleration and
driving in mountainous regions.
Normal mode
Snow mode
For accelerating and driving on
slippery road surfaces, such as
on snow.
Press “SNOW” to return to nor-
mal mode.

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Changing shift ranges in “S” mode
Shift the shift lever to the “S” position and operate the shift lever.
Upshifting
Downshifting
The initial shift range in “S” mode is automatically set to “5”.
■Shift ranges and their functions
●You can choose from 6 levels of engine braking force.
●A lower shift range will provide greater engine braking force than a
higher shift range, and the engine revolutions will also increase.
●If you accelerate while in ranges “1” to “5”, the shift range may auto-
matically range up in accordance with the vehicle’s speed.

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GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
■Downshifting restrictions warning buzzer (in the “S” mode)
To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever is operated. (The warning buzzer will sound twice.)
■When driving with the cruise control system (or dynamic radar cruise control sys-
tem)
The engine brake will not operate in the “S” mode, even when downshifting to “5” or
“4”. (P. 1 8 1P. 1 8 4 )
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the “POWER” switch is turned to
ACCESSORY or ON mode after driving in snow mode.
■If the shift lever cannot be shifted from “P”
P. 5 7 3
■If the indicator does not come on even after shifting the shift lever to “S”
This may indicate a malfunction in the transmission. Have the vehicle inspected by
your Lexus dealer immediately. 
(In this situation, the vehicle will operate as if the shift lever is in “D”.)
■When in heavy traffic
To avoid running the hybrid battery (traction battery) down, leave the shift lever in
“D” or “S”.

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Turn signal lever
■Turn signals can be operated when
The “POWER” switch is in ON mode.
■If the indicators flash faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
Right turn
Left turn
Move and hold the lever part-
way to signal a lane change
The right hand signal will flash
until you release the lever.
Move and hold the lever part-
way to signal a lane change
The left hand signal will flash
until you release the lever.

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GS_HV_U (OM30C81U)
October 13, 2015 12:41 pm
Parking brake
■Usage in winter time
See “Winter driving tips” for parking brake usage in winter time. (P. 2 3 3 )
NOTICE
■Before driving
Fully release the parking brake.
Driving the vehicle with the parking brake set will lead to brake components over-
heating, which may affect braking performance and increase brake wear.
Sets the parking brake*
(Depressing the pedal again
releases the parking brake.)
*: Fully depress the parking
brake pedal with your left
foot while depressing the
brake pedal with your right
foot.
CanadaU.S.A.

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Horn
To sound the horn, press on or
close to the mark.