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4-5. Using the driving support systems
■When the message is displayed on the multi-information display showing that
TRAC has been disabled even if the VSC OFF switch has not been pressed
TRAC cannot be operated. Contact your Lexus dealer.
■Sounds and vibrations caused by the ABS, brake assist, VSC and TRAC systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the hybrid system is started or just after the vehicle
begins to move. This sound does not indicate that a malfunction has occurred in
any of these systems.
●Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard.
This does not indicate a malfunction.
■Reactivation of the TRAC/VSC systems
Even after the TRAC/VSC systems have been turned off, turning the hybrid system
off and then on again will automatically reactivate the TRAC/VSC systems.
■Reactivation of the TRAC system linked to vehicle speed
When only the TRAC system is turned off, the TRAC system will turn on when vehi-
cle speed increases. However, when both TRAC/VSC systems are turned off, the
systems will not turn on even when vehicle speed increases.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheat-
ing when there is frequent steering input over an extended period of time. The steer-
ing wheel may feel heavy as a result.
* Should this occur, refrain from excessive
steering input or stop the vehicle and turn the hybrid system off. The EPS system
should return to normal within 10 minutes.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a warning
message will be shown on the multi-information display.
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400
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5-2. Using the air conditioning system and defogger
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the power switch to ON
mode will recall that key’s registered air conditioning settings.
●When the power switch is turned off, the current air conditioning settings will auto-
matically be registered to the electronic key that was used to unlock the vehicle.
The system may not operate correctly if more than one electronic key is in the vicinity
or if the smart access system with push-button start is used to unlock a passenger
door.
Settings for the electronic key and the corresponding door can be changed. Contact
your Lexus dealer.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow immedi-
ately after is pressed.
■Humidity sensor
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high. Selecting on will dehumidify the air from the outlets and defog the windshield effec-
tively.
●If you turn off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
A sensor, which detects humidity inside the
vehicle and the temperature of the wind-
shield, is provided to detect fog on the front
windscreen. Due to the sensor, when auto-
matic mode is set the air conditioning may
make the following controls:
●Changing the amount of air flow
●Changing the amount of air introduced from
outside when in outside air mode with the air
vents in the position
●Changing the settings of the air vents to
when the is set
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GS450h_OM_OM30D52U_(U)
4675-3. Using the audio system
5
Interior features
Select “Options” on “DVD” screen, the following screen appears.Returns to the full screen (only when the vehicle is completely stopped
and the parking brake is applied)
Search by title number
Change audio language
Change angle
Display the predetermined scene and start playing from there
Change subtitle language
Change screen size
Display the image quality adjustment screen
Change initial setting
If appears on the screen when a control is selected the operation rele-
vant to the control is not permitted.
Select and hold or on the control icon screen, or press and hold
“<” or “>” on the “PRST•TRACK” button.
DVD options screen
XVehicles without a navigation
system XVehicles with a navigation sys-
tem
Fast forwarding/rewinding a disc
1
2
3
4
5
6
7
8
9
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GS450h_OM_OM30D52U_(U)
5575-4. Using the hands-free phone system (for cellular phone)
5
Interior features
Received messages can be forwarded from the connected Bluetooth®
phone, enabling checking and replying (Quick reply).
■Checking a messageDisplay the “Phone” screen. ( →P. 5 3 9 )
Select “Messages” on the “Phone” screen.
Depending on the type of Bluetooth® phone being connected, it may be nec-
essary to perform additional steps on the phone.
When “Message Transfer” is set to “Off”, a confirmation screen will be dis-
played. Select “Yes”.
Select the desired message to
check.
The text of the message is not dis-
played while driving.
Selecting “Previous” or “Next” dis-
plays the previous or next message.
Select “Play” to start reading out of the message. Select “Stop” to
stop the function.
■To adjust the message reading out volume
Select “-” or “+”, turn the “PWR/VOL” knob, or use the volume switch
on the steering wheel.
■Replying a message (Quick reply)
Select “Reply” on the desired
message screen.
Using a Bluetooth® phone message
1
2
3
4
1
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662
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6-3. Do-it-yourself maintenance
CAUTION
■When raising your vehicle
Make sure to observe the following precautions to reduce the possibility of death
or serious injury:
●When using a floor jack, follow the instructions of the manual provided with the
jack.
●Do not use the jack that was supplied with your vehicle.
●Do not put any part of your body underneath the vehicle when it is supported
only by the floor jack.
●Always use floor jack and/or automotive jack stands on a solid, flat, level surface.
●Do not start the hybrid system while the vehicle is supported by the floor jack.
●Stop the vehicle on level, firm ground, firmly set the parking brake and shift the
shift lever to P.
●Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage the vehi-
cle and may cause the vehicle to fall off the floor jack.
●Do not raise the vehicle while someone is in the vehicle.
●When raising the vehicle, do not place any object on top of or underneath the
floor jack.
●Lift up the vehicle using a floor jack such as
the one shown in the illustration.
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7056-3. Do-it-yourself maintenance
6
Maintenance and care
11DOOR FL30Outside rear view mirror defoggers, power
window (front left-hand)
12CAPACITOR
(HV)10Capacitor
13STRG LOCK15Steering lock system
14D/L NO.225Po w e r d o o r l o c k s y s t e m
15DOOR RL30Power window (rear left-hand)
16HAZ15Turn signal lights, emergency flashers
17LH-IG210
Multiport fuel injection system/sequential
multiport fuel injection system, stop lights,
smart access system with push-button start,
steering lock system, brake system, power
management system
18LH J/B-B7. 5Body ECU
19S/ROOF20Moon roof
20P/ S E AT 2 F/ L25Po w e r s e a t s
21TI & TE20Electric tilt and telescopic steering column
22A/C7. 5Air conditioning system
FuseAmpereCircuit
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727
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7When trouble arises
7-1. Essential information Emergency flashers................... 728
If your vehicle has to be stopped in an emergency .... 729 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 730
If you think something is wrong ................ 736
If a warning light turns on or a warning buzzer sounds ......737
If a warning message is displayed ................................. 747
If you have a flat tire....................775
If the hybrid system will not start................................ 788
If the shift lever cannot be shifted from P ..................... 790
If the parking brake cannot be released ..................................791
If the electronic key does not operate properly ..................... 793
If the 12-volt battery is discharged ............................. 796
If your vehicle overheats ........ 800
If the vehicle becomes stuck ............................................ 805
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7457-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
7
When trouble arises
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when the system is not operating properly. The
TPMS (tire pressure warning system) malfunction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists. When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
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