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665
9
9-2. Customization
Vehicle specifications
IS300h_EE(OM53D89E)
■Vehicle customization
●When the speed-detecting automatic door lock and shift-linked automatic door lock
are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be locked.
• If the vehicle is started with all doors locked, the speed-detecting automatic door
lock will not operate. • If the vehicle is started with any door unlocked, the speed-detecting automatic door
lock will operate.
●When the smart entry & start system is off, the entry unlock function cannot be custom-
ized.
●When the doors remain closed after unlocking the doors and the timer activated auto- matic door lock function activates, signals will be generated in accordance with the
operation buzzer volume and operational signal (Emergency flashers) function set-
tings.
●Some settings can be changed using a switch or the audio system screen. If a setting is
changed using a switch , the changed setting will not be reflected on the audio system
screen until the power switch is turned off and then to ON mode.
WARNING
■During customization
As the hybrid system needs to be operating during customization, ensure that the vehi-
cle is parked in a place with adequate ventil ation. In a closed area such as a garage, exhaust gases including harmful carbon mo noxide (CO) may collect and enter the
vehicle. This may lead to deat h or a serious health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge, ensure that the hybrid system is operating while
customizing features.
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666
IS300h_EE(OM53D89E)
9-3. Initialization
Items to initialize
The following item must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle:
ItemWhen to initializeReference
Engine oil maintenance dataAfter changing the engine oilP. 518
Tire pressure warning system
• When rotating the tires • When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
P. 527
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667
Index
IS300h_EE(OM53D89E)
What to do if...
(Troubleshooting) ............................... 668
Alphabetical index................................. 672
For vehicles with a 10.3-inch display, refer to “NAVIGATION
AND MULTIMEDIA SYSTEM OWNER’S MANUAL” for infor-
mation regarding the eq uipment listed below.
• Navigation system • Audio/video system
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668
IS300h_EE(OM53D89E)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus retailer or Lexu s authorized repairer, or any reliable
repairer. ( P. 140)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer immediately. ( P. 143)
●Is the electronic key battery weak or depleted? (P. 549)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 220)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
( P. 159)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
( P. 148)
If you have a problem, check the following before contacting any authorized
Lexus retailer or Lexus authorized re pairer, or any reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
Page 669 of 692

669What to do if... (Troubleshooting)
IS300h_EE(OM53D89E)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as us ual. Take the key out from the trunk.
( P. 154)
●Did you press the power switch while firmly depressing the brake pedal?
( P. 219)
●Is the shift lever in P? (P. 221)
●Is the electronic key anywhere detectable inside the vehicle? (P. 157)
●Is the steering wheel unlocked? (P. 222)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way. (P. 629)
●Is the 12-volt battery discharged? (P. 631)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode. ( P. 230)
●It is locked automatically to prevent theft of the vehicle. (P. 222)
The trunk lid is closed with the electronic key left inside
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress the brake
pedal
The steering wheel cannot be turned after the hybrid system is stopped
Page 670 of 692

670What to do if... (Troubleshooting)
IS300h_EE(OM53D89E)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be operated
if the window lock switch is pressed. ( P. 193)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of time.
( P. 221)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 577)
●The parking brake indicator is on
Is the parking brake released? ( P. 235)
Depending on the situation, other type s of warning buzzer may also sound.
( P. 575, 581)
●Did anyone inside the vehicle open a door or anything move inside the vehicle
during setting the alarm?
The sensor detects them and the alarm sounds. ( P. 92)
Do one of the following to deactivate or stop the alarm:
• Unlock the doors or open the trunk using the entry function or wireless
remote control.
• Start the hybrid system.
The windows do not open or close by operating the power window
switches
The power switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)
Page 671 of 692
671What to do if... (Troubleshooting)
IS300h_EE(OM53D89E)
●Is the message displayed on the multi-information display?
Check the message on the mu lti-information display. (P. 581)
●When a warning light turns on or a warning message is displayed, refer to
P. 575, 581.
●Vehicles with an emergency tire puncture repair kit
Stop the vehicle in a safe place and repa ir the flat tire temporarily with the
emergency tire puncture repair kit. ( P. 610)
●Vehicles with run-flat tires
Slow down and drive with extra caution . Take your vehicle to the nearest
authorized Lexus retailer or Lexus au thorized repairer, or any reliable
repairer or authorized tire dealer to have the flat tire replaced.
( P. 625)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
( P. 641)
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
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672
IS300h_EE(OM53D89E)
Alphabetical index
Alphabetical index
A/C ............................................................ 466
Air conditioning filter........................ 547
Automatic air conditioning
system ..................................................466
S-FLOW mode..................................469
Blower customization ..................... 475
AAC disc ................................................. 396
ABS (Anti-lock Brake System) ....... 352
Warning light ....................................... 576
Adaptive Variable Suspension
system ....................................................353
Air conditioning filter .......................... 547
Air conditioning system ..................... 466
Air conditioning filter........................ 547
Automatic air conditioning
system ..................................................466
S-FLOW mode..................................469
Blower customization ..................... 475
Airbags ........................................................ 43
Airbag manual on-off system......... 53
Airbag operating conditions ...........49
Airbag precautions for
your child .............................................. 45
Correct driving posture.................... 36
Curtain shield airbag operating
conditions ..............................................49
Curtain shield airbag
precautions ........................................... 47
General airbag precautions ........... 45
Locations of airbags ............................43
Modification and disposal of
airbags.................................................... 48
Side airbag operating
conditions ..............................................49
Side airbag precautions .................... 45
Side and curtain shield airbags
operating conditions ........................49
Side and curtain shield airbags
precautions .......................................... 45
SRS airbags ..............................................43
SRS warning light .............................. 576
Airbag manual on-off system ............. 53
Alarm............................................................ 92
Anchor brackets .......................................67
Antennas (smart entry &
start system) ......................................... 157
A