2214-2. Driving procedures
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Driving
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■When starting the hybrid system
Always start the hybrid system while sittin g in the driver’s seat. Do not depress the accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
If hybrid system failure occurs while the vehicle is moving, do not lock or open the
doors until the vehicle reaches a safe and complete stop. Activation of the steering lock in this circumstance may lead to an accide nt, 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, press and hold the power switch for more than 2 seconds, or press it briefly 3 times or morein succession. ( P. 453)
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, however, power assist to the steering will be lost. This will make it more difficult to steer
smoothly, 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 of
time without the hybrid system on.
●If “POWER ON” is displayed on the multi-in formation display, the power switch is not off. Exit the vehicle after turning the power switch off.
●Do not stop the hybrid system when the shift lever is in a position other than P. If thehybrid system is stopped in another shift lever position, the power switch will not be turned off but instead be turned to ACCESSORY mode. If the vehicle is left in
ACCESSORY mode, 12-volt battery discharge may occur.
■When starting the hybrid system
If the hybrid system becomes difficult to start, have your vehicle checked by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
■Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating so mewhat differently than usual, such as the
switch sticking slightly, there may be a malfunction. Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer immediately.
2224-2. Driving procedures
GS450h_300h_OM_OM30F92E_(EE)
EV drive mode
Turns EV drive mode on/off
When EV drive mode is turned on, “EV
MODE” will be displayed on the multi- information display. Pressing the switchwhen in EV drive mode will return the
vehicle to normal driving (using the gas- oline engine and electric motor [tractionmotor]).
■Situations in which EV drive mode cannot be turned on
It may not be possible to turn EV drive mode on in the following situations. If it cannot be turned on, a buzzer will sound and a message will be shown on the multi-information dis-
play.
●The temperature of the hybrid system is high. The vehicle has been left in the sun, driv en on a hill, driven at high speeds, etc.
●The temperature of the hybrid system is low. The vehicle has been left in temperatures lower than about 0 C (32F) for a long period of time etc.
●The gasoline engine is warming up.
●The hybrid battery (traction battery) is low.The remaining battery level indicated in the “Energy monitor” display is low. ( P. 126)
●Vehicle speed is high.
●The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
●The windshield defogger is in use.
In EV drive mode, electric power is supplied by the hybrid battery (traction
battery), and only the electric motor (tra ction motor) is used to drive the vehi-
cle.
This mode allows you to dr ive in residential areas early in the morning and late
at night, or in indoor parking lots etc. without concern for noises and gas emis-
sions.
2234-2. Driving procedures
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Driving
GS450h_300h_OM_OM30F92E_(EE)
■Switching to EV drive mode when the gasoline engine is cold
If the hybrid system is started while the gaso line engine is cold, the gasoline engine will start automatically in order to warm up. In th is case, you will become unable to switch to
EV drive mode.
■Automatic cancelation of EV drive mode
When driving in EV drive mode, the gasoline engine may automatically restart in the fol- lowing situations. When EV drive mode is can celed, a buzzer will sound and the EV drive
mode indicator will flash and go off.
●The hybrid battery (traction battery) becomes low. The remaining battery level indicated in the “Energy monitor” display is low. ( P. 126)
●Vehicle speed is high.
●The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
When it is possible to inform the driver of automatic cancelation in advance, a prior
notice screen will appear on the multi-information display.
■Possible driving distance when driving in EV drive mode
EV drive mode’s possible driving distance ranges from a few hundred meters to approxi-
mately 1 km (0.6 mile). However, dependin g on vehicle conditions, there are situations when EV drive mode cannot be used. (The distance that is possible depends on the hybrid battery [traction battery] level and
driving conditions.)
■Fuel economy
The hybrid system is designed to achieve the best possible fuel economy during normal
driving (using the gasoline engine and electr ic motor [traction motor]). Driving in EV drive mode more than necessary may lower fuel economy.
To prevent gasoline engine warm up in order to
reduce noises, start the hybrid system without starting the gasoline engine, pressing the powerswitch with fully depressing the brake pedal and
pressing the EV drive mode switch.
WARNING
■Caution while driving
When driving in EV dr ive mode, pay special attention to the area around the vehicle. Because there is no engine noise, pedestrian s, people riding bicycles or other people
and vehicles in the area may not be aware of the vehicle starting off or approaching them, so take extr a care while driving.
2264-2. Driving procedures
GS450h_300h_OM_OM30F92E_(EE)
To drive using temporary shift range selection, operate the “-” or “+” paddle shift
switch.
When the “-” paddle shift switch is operated, the shift range will be downshifted
to a range that enables engine braking force that is suitable to driving conditions.
When the “+” paddle shift switch is operated, the shift range will be one gear
upper than the gear in use during normal D position driving.
Changing the shift range allows restriction of the highest shift range, preventing
unnecessary upshifting and enabling th e level of engine braking force to be
selected.
Upshifting
Downshifting
GS450h: The selected shift range, from D1 to D8,will be displayed in the meter.
GS300h: The selected shift range, from D1 to D6,will be displayed in the meter.
To return to normal D position driving, the “+” paddle shift switch must be helddown for a period of time.
■Shift ranges and their functions
A lower shift range will provide greater engi ne braking forces than a higher shift range.
Selecting shift ranges in the D position
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Meter displayFunctionGS450hGS300h
D2-D8D2-D6
A gear in the range between D1 and the selected shift
range is automatically chosen depending on vehicle speed and driving conditions
D1Setting the shift range at D1
2274-2. Driving procedures
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
To enter S mode, shift the shift lever to S. Shift ranges can be selected by operat-
ing the shift lever or paddle shift switches, allowing you to drive in the shift range
of your choosing.
Upshifting
Downshifting
GS450h: The selected shift range, from S1 to S8,will be displayed in the meter.
The initial shift range in S mode is auto- matically set to between S2 and S6according to vehicle speed.
GS300h: The selected shift range, from S1 to S6,will be displayed in the meter.
The initial shift range in S mode is auto- matically set to between S2 and S5according to vehicle speed.
■Shift ranges and their functions
●GS450h: You can choose from 8 levels of accelerating force and engine
braking force.
GS300h: You can choose from 6 levels of accelerating force and engine
braking force.
●A lower shift range will provide greater accelerating force and engine
braking force than a higher shift range, and the engine revolutions will also
increase.
●GS450h: If you accelerate while in ranges 1 to 7, the shift range may auto-
matically range up in accordance with the vehicle’s speed.
GS300h: If you accelerate while in ranges 1 to 5, the shift range may auto-
matically range up in accordance with the vehicle’s speed.
Selecting shift ranges in the S position
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2284-2. Driving procedures
GS450h_300h_OM_OM30F92E_(EE)
■Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
●When the vehicle comes to a stop
●If the accelerator pedal is depressed for more than a certain period of time
●When the shift lever is shifted to other than D
■Downshifting restrictions warning buzzer
To help ensure safety and driving performance, downshifting operation may sometimes
be restricted. In some circumstances, downsh ifting may not be possible even when the shift lever or paddle shift switch is operated. (A buzzer will sound twice.)
■Snow mode automatic deactivation
Snow mode is automatically deactivated if the power switch is turned off after driving in snow mode.
■When driving with cruise control or dynamic radar cruise control with full-speed range
activated
Even when performing the following actions with the intent of enabling engine braking, engine braking will not activate because crui se control or dynamic radar cruise control
with full-speed range will not be canceled.
●GS450h: While driving in the D position or S mode, downshifting to 7, 6, 5 or 4. ( P. 296, 308)
●GS300h: While driving in the D position, downshifting to 5 or 4. (P. 296, 308)
●When switching the driving mode to sport mode while driving in D position. (P. 311)
■Restraining sudden start (Drive-Start Control)
●When the following unusual operation is performed, the engine output may be restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes S) with the accelerator pedal depressed, a warning message appears on the multi-information display. ( P. 466) • When the accelerator pedal is depressed t oo much while the vehicle is in reverse.
■Shift lock system
The shift lock system is a system to prevent accidental operation of the shift lever in start- ing.
The shift lever can be shifted from P only wh en the power switch is in ON mode and the brake pedal is being depressed.
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4-2. Driving procedures
Driving
GS450h_300h_OM_OM30F92E_(EE)
Brake Hold
Turns the brake hold system on
The brake hold standby indicator
(green) comes on. While the system is holding the brake, the brake hold oper-ated indicator (yellow) comes on.
■Brake hold system operating conditions
The brake hold system cannot be turn ed on in the following conditions:
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●“EPB Activation Stopped Incompletely” or “Electronic Parking Brake Malfunction Visit Your Dealer” is displayed on the multi-information display.
If any of the conditions above are detected when the brake hold system is enabled, the system will turn off and the brake hold standby indicator light will go off. In addition, if any of the conditions are detected while the sy stem is holding the brake, a warning buzzer
will sound and a message will be shown on th e multi-information display. The parking brake will then be set automatically.
■Brake hold function
●If the brake pedal is left released for a pe riod of about 3 minutes after the system has started holding the brake, th e parking brake will be set automatically. In this case, a warning buzzer sounds and a message is shown on the multi-information display.
●To turn the system off while the system is holding the brake, firmly depress the brake pedal and press the button again.
●The brake hold function may not hold the vehicle when the vehicle is on a steep incline.
In this situation, it may be necessary for the driver to apply the brakes. A warning buzzer will sound and the multi-information disp lay will inform the driver of this situa- tion. ( P. 466)
The brake hold system keeps the brake applied when the shift lever is in D, S or
N with the system on and the brake peda l has been depressed to stop the vehi-
cle. The system releases the brake when the accelerator pedal is depressed
with the shift lever in D or S to allow smooth start off.
2394-3. Operating the lights and wipers
4
Driving
GS450h_300h_OM_OM30F92E_(EE)
AFS (Adaptive Front-lighting System) secures excellent visibility at intersections
and on curves by automatically adjusting the direction of the light axis of the
headlights according to vehicle speed and the degree of the tire’s angle as con-
trolled by steering input.
AFS operates at speeds of 10 km/h (6 mph) or higher.
■Deactivating AFS
Settings can be changed from on the multi-information display
( P. 111).
Press or on the meter control switch and select “AFS”.
Press on the meter control
switch and select “Off”.
The indicator turns on when the AFS is deactivated.
AFS (Adaptive Front-lighti ng System) (if equipped)
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