2018 Lexus IS350 Battery

TABLE OF CONTENTS6
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
6-5. Using the other interior
features
Other interior features .............427 • Sun visors .................................427
• Vanity mirrors ........................427
• Clock .........................................427
• Power outlet .......................... 428
• Armrest.................................... 429
• Rear sunshade ...................... 429
• Assist grips ...............................431
• Coat hooks...............................431
Garage door opener ............... 432
Compass ....................................... 439
LEXUS Enform Safety Connect...................................... 443
LEXUS Enform Remote ......... 448
LEXUS Enform Service Connect...................................... 449
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ................ 452
Cleaning and protecting the vehicle interior.................. 456
7-2. Maintenance Maintenance requirements ............................ 459
General mainte nance.............. 462
Emission inspection and maintenance (I/M)
programs.................................... 465 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ............................... 466
Hood ............................................... 468
Positioning a floor jack ............ 469
Engine compartment ................. 471
Tires ................................................. 483
Tire inflation pressure .............. 493
Wheels ........................................... 496
Air conditio ning filter ............... 498
Electronic key battery..............500
Checking and replacing fuses.............................................. 502
Light bulbs ....................................505
8-1. Essential information Emergency flashers ....................512
If your vehicle has to be stopped in an emergency .....513
8-2. Steps to take in an emergency
If your vehicle needs to be towed .............................................514
If you think something is wrong........................................... 520
Fuel pump shut off system........521
If a warning light turns on or a warning buzzer
sounds ......................................... 522
If a warning message is displayed .................................... 529
If you have a flat tire .................. 556
If the engine will not start ........ 567
7Maintenance and care
8When trouble arises

7
1
9 8
7 5 4
3
2
10
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
6
If the electronic key does not
operate properly..................... 569
If the vehicle battery is discharged ................................. 572
If your vehicle overheats......... 576
If the vehicle becomes stuck .............................................580
9-1. Specifications Maintenance data (fuel, oil level, etc.) .................. 584
Fuel information ......................... 596
Tire information .......................... 599
9-2. Customization Customizable features ............... 611
9-3. Initialization Items to initialize......................... 620 Reporting safety defects for
U.S. owners ........................................... 622
Seat belt instructions for Canadian owners (i n French)........ 623
SRS airbag instructions for Canadian owners (i n French)........ 624
What to do if... (Troubleshooting)............................... 634
Alphabetical inde x ................................ 638
9Vehicle specifications
10For owners
Index
For vehicles with a navigation system, refer to the “NAVIGATION SYSTEM
OWNER’S MANUAL” for information re garding the equipment listed below.
• Navigation system
• Audio/video system•Lexus Enform

721-2. Theft deterrent system
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-
ing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
In the following cases, depending on the si tuation, the door may automatically lock to
prevent improper entry into the vehicle:
●When a person remaining in the vehicle un locks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the battery
●The trunk is opened using the mechanical key.
●A person inside the vehicle opens a door or
the trunk or hood, or unlocks the vehicle.
●The battery is recharged or replaced when the
vehicle is locked. (→P. 574)

1022. Instrument cluster
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is characteristic
of liquid crystal displays, and there is no problem continuing to use the display.
■Customization
Some functions can be customized. ( →P. 95, 611)
WARNING
■Caution for use while driving
●When operating the multi-information display while driving, pay extra attention to the
safety of the area around the vehicle.
●Do not look continuously at the multi-info rmation display while driving as you may fail
to see pedestrians, objects on the road, etc. ahead of the vehicle.
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal information
display. At extremely low temperatures, th e information display monitor may respond
slowly, and display changes may be delayed.
For example, there is a lag between the dr iver’s shifting and the new gear number
appearing on the display. This lag could ca use the driver to downshift again, causing
rapid and excessive engine braking and possibly an accident resulting in death or
injury.
■Cautions during setting up the display
As the engine needs to be running during sett ing up the display, ensure that the vehicle
is parked in a place with adequate ventilation. 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 death or a serious health hazard.
NOTICE
■While setting up the display
To prevent battery discharge, ensure that the engine is running while setting up the dis-
play features.

1113-1. Key information
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
To take out the mechanical key, push
the release button and take the key out.
The mechanical key can only be
inserted in one direction, as the key only
has grooves on one side. If the key can-
not be inserted in a lock cylinder, turn it
over and re-attempt to insert it.
After using the mechanical key, store it
in the electronic key. Carry the mechan-
ical key together with the electronic key.
If the electronic key battery is depleted
or the entry function does not operate
properly, you will need the mechanical
key. ( →P. 569)
Using the mechanical key

1123-1. Key information
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■Panic mode
■Card key (if equipped)
●The card key is not waterproof.
●The mechanical key that is stored inside the card key should be used only if a problem
arises, such as when the card key does not operate properly.
●If it is difficult to take out the mechanical key, push down the lock release button using a
pen tip etc. If it is still difficult to pull it out, use a coin etc.
■When required to leave the vehicle’s key with a parking attendant
Set the luggage security system ( →P. 123) on and lock the glove box ( →P. 422) as cir-
cumstances demand.
Remove the mechanical key for your own use and provide the attendant with the elec-
tronic key only.
■If you lose your mechanical keys
New genuine mechanical keys can be made by your Lexus dealer using another
mechanical key and the key number stamped on your key number plate. Keep the plate
in a safe place such as your wallet, not in the vehicle.
When is pressed for longer than about
one second, an alarm will sound intermittently
and the vehicle lights will flash to deter any per-
son from trying to break into or damage your
vehicle.
To stop the alarm, press any button on the elec-
tronic key.
●To store the mechanical key in the card key,
insert it while pressing the lock release button.
●If the battery cover is not installed and the bat-
tery falls out or if the battery was removed
because the key got wet, reinstall the battery
with the positive terminal facing the Lexus
emblem.

1133-1. Key information
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
■When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you do not press any but-
tons on the electronic key while inside the airc raft cabin. If you are carrying an electronic
key in your bag etc., ensure that the buttons are not likely to be pressed accidentally.
Pressing a button may cause the electronic key to emit radio waves that could interfere
with the operation of the aircraft.
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The card key battery life is about a year and a
half.)
●If the battery becomes low, an alarm will sound in the cabin when the engine is stopped.
( → P. 552)
●As the electronic key always receives ra dio waves, the battery will become depleted
even if the electronic key is not used. The following symptoms indicate that the elec-
tronic key battery may be depleted. Replace the battery when necessary. ( →P. 500)
• The smart access system with push-button start or the wireless remote control does
not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of the
following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
•Table lamps
• Induction cookers
■Replacing the battery
→ P. 500
■Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask your Lexus
dealer for details.
■If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

1153-1. Key information
3
Operation of each component
IS350 AWD/IS350/IS300 AWD/IS300_U(OM53E34U)
NOTICE
■When an electronic key is lost
If the electronic key remains lost, the risk of vehicle th eft increases significantly. Visit
your Lexus dealer immediately with all rema ining electronic keys and the card key that
were provided with your vehicle.
■Handling the card key
●Do not apply excess force when inserting th e mechanical key into the card key. Doing
so may damage the card key.
●If the battery or card key terminals get wet, the battery may corrode.
If the key is dropped into water, or if drin king water etc. is spilled on the key, immedi-
ately remove the battery cover and wipe th e battery and terminals. (To remove the
battery cover, lightly grasp and pull it.) If the battery is corroded, have your Lexus
dealer replace the battery.
●Do not crush the battery cover or use a screwdriver to remove the battery cover.
Forcibly removing the battery cover may bend or damage the key.
●If the battery cover is frequently removed, the battery cover may become loose.
●When installing the battery, make sure to check the direction of the battery.
Installing the battery in the wrong directio n may cause the battery to deplete rapidly.
●The surface of the card key may be damaged, or its coating may peel off in the follow-
ing situations:
• The card key is carried together with hard objects, such as coins and keys.
• The card key is scraped with a sharp object, such as the tip of a mechanical pencil.
• The surface of the card key is wiped with thinner or benzene.