2019 Lexus IS300 maintain

4597-1. Maintenance and care
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Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
■Caring for leather areas
Lexus recommends cleaning the interior of the vehicle at least twice a year to maintain
the quality of the vehicle’s interior.
■Shampooing the carpets
There are several commercial foaming-type cleaners available. Use a sponge or brush to
apply the foam. Rub in overlapp ing circles. Do not use water. Wipe dirty surfaces and let
them dry. Excellent results are obtained by keeping the carpet as dry as possible.
■Seat belts
Clean with mild soap and lukewarm water using a cloth or sponge. Also check the belts
periodically for excessive wear, fraying or cuts.
■When cleaning the carpeted portions of the glove box, console box, etc.
If a strong adhesive tape is used, there is a possibility that the surface of the carpet could
be damaged.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in the vehicle.
Doing so may cause electrical components etc. to malfunction or catch fire.
●Do not get any of the SRS components or wiring in the vehicle interior wet.
(  P. 37)
An electrical malfunction ma y cause the airbags to deploy or not function properly,
resulting in death or serious injury.
■Cleaning the interior (especially instrument panel)
Do not use polish wax or polish cleaner. Th e instrument panel may reflect off the wind-
shield, obstructing the driver’s view and le ading to an accident, resulting in death or
serious injury.

4637-2. Maintenance
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Maintenance and care
IS350 AWD/IS350/IS300 AWD/IS300_U
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
●Engine exhaust, some of its constituents, and a wide variety of automobile compo-
nents contain or emit chemicals known to th e State of California to cause cancer and
birth defects and other reproductive ha rm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by component
wear contain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm. Avoid exposure and wash any affected area
immediately.
●Battery posts, terminals and related acce ssories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. ( P. 482)

5007-3. Do-it-yourself maintenance
IS350 AWD/IS350/IS300 AWD/IS300_U
Turn the engine switch off.
Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.
Press the tabs and remove the filter
cover.
Press the tabs and remove the filter
case.
Air conditioning filter
The air conditioning filter must be ch anged regularly to maintain air condi-
tioning efficiency.
Removal method
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5578-2. Steps to take in an emergency
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When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U
Once
The engine switch has been turned
off with the shift lever in a position
other than P or N.
Shift the shift lever to P.
Once
After the engine switch has been
turned off with the shift lever in a
position other than P, the shift lever
has been shifted to P.
Turn the engine switch off.

Power was turned off due to the
automatic power off function.
Next time when starting the
engine, increase the engine
speed slightly and maintain that
level for approximately 5 min-
utes to recharge the battery.
Con-
tinuous
Indicates that the engine was
stopped in an emergency while driv-
ing
To restart the engine, shift the
shift lever to N and turn the
engine switch to IGNITION
ON mode.
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Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

5768-2. Steps to take in an emergency
IS350 AWD/IS350/IS300 AWD/IS300_U
Connect the jumper cables according to the following procedure:
IS350 AWD/IS350/IS300 AWD
IS300
Connect a positive jumper cable clamp to the positive (+) battery terminal
on your vehicle.
Connect the clamp on the other end of the positive cable to the positive (+)
battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery terminal on the
second vehicle.
Connect the clamp at the other end of th e negative cable to a solid, station-
ary, unpainted metallic po int away from the battery and any moving parts,
as shown in the illustration.
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximatel y 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors of your vehicle with the engine switch off.
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5778-2. Steps to take in an emergency
8
When trouble arises
IS350 AWD/IS350/IS300 AWD/IS300_U
Maintain the engine speed of the second vehicle and start the engine of your
vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Lexus dealer as soon
as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period , such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle is not
in use, due to natural discharge and the draini ng effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to un lock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
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6029-1. Specifications
IS350 AWD/IS350/IS300 AWD/IS300_U
Tire size ( P. 604)
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire
has a tube inside the tire and the tube maintains the air pressure.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply
tire.
Summer tires or all season tires ( P. 489)
An all season tire has “M+S” on the side wall. A tire not marked “M+S” is a summer
tire.
Maximum cold tire inflation pressure ( P. 608)
This means the pressure to which a tire may be inflated.
Load limit at maximum cold tire inflation pressure ( P. 608)
Tire ply composition and materials
Plies are layers of rubber-c oated parallel cords. Cords are the strands which form the
plies in a tire.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
DOT and Tire Identification Number (TIN) ( P. 603)
Location of trea dwear indicators ( P. 485)
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded
on its sidewall. This tire is designed for temporary emergency use only.
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652Alphabetical index
IS350 AWD/IS350/IS300 AWD/IS300_U
Rear view mirrorInside rear view mirror ..................... 157
Outside rear view mirrors .............. 159
Rear window defoggers .................... 422
Refueling ................................................... 218 Capacity ................................................ 589
Fuel types .............................................. 589
If the fuel filler door cannot be opened .........................220
Opening the fuel tank cap.............220
Remote Touch
*......................................412
Replacing Electronic key battery ..................... 502
Fuses........................................................ 504
Light bulbs ............................................ 507
Tires ......................................................... 559
Reporting safety defects for U.S. owners................................... 624
Resetting the message indicating maintenance is required ................ 462
Rev indicator ...............................................91
Rev peak .......................................................91 Seat belt reminder light ......................527
Seat belts .................................................... 30
Adjusting the seat belt.......................... 31
Automatic Locking Retractor .........32
Child restraint system installation ............................................. 60
Cleaning and maintaining the seat belt ....................................... 459
Emergency Locking Retractor.................................................32
How to wear your seat belt............. 30
How your child should wear the seat belt ...........................................32
Pregnant women, proper seat belt use ......................................... 33
Reminder light and buzzer ........... 527
Seat belt extender .................................32
Seat belt pretensioners........................ 31
SRS warning light .............................. 525
Seat heaters............................................. 427
Seat position memory .......................... 147
Seat ventilators....................................... 427
Seating capacity .....................................183
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