2013 Lexus IS300h service

435
7
Maintenance and care
IS300h_EE(OM53B95E)7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition (P.
447)•Grease
• Conventional wrench (for terminal clamp bolts)
Engine/power con-
trol unit coolant
level (P. 444)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-amine,
non-nitrite and non-borate coolant with long-life
hybrid organic acid technology
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(P. 440)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 475)• Fuse with same amperage rating as original
Light bulbs
(P. 479)
• Bulb with same number and wattage rating as original
• Phillips-head screw-
driver• Flathead screwdriver
• Wrench
Radiators and con-
denser (P. 446)
Tire inflation pres-
sure (P. 466)• Tire pressure gauge• Compressed air source
Washer fluid
(P. 446)• Water or washer fluid containing antifreeze (for winter
use)
• Funnel (used only for adding water or washer fluid)

4437-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
CAUTION
Used engine oil
Used engine oil contains potentially harmful contaminants which may cause
skin disorders such as inflammation and skin cancer, so care should be taken
to avoid prolonged and repeated contact. To remove used engine oil from
your skin, wash thoroughly with soap and water.
Dispose of used oil and filters only in a safe and acceptable manner. Do not
dispose of used oil and filters in household trash, in sewers or onto the
ground.
Call any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, service station or auto parts store for information con-
cerning recycling or disposal.
Do not leave used engine oil within the reach of children.
NOTICE
To prevent serious engine damage
Check the oil level on a regular basis.
When replacing the engine oil
Be careful not to spill engine oil on the vehicle components.
Avoid overfilling, or the engine could be damaged.
Check the oil level on the dipstick every time you refill the vehicle.
Be sure the engine oil filler cap is properly tightened.

4597-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
NOTICE
Repairing or replacing tires, wheels, tire pressure warning valves, transmitters
and tire valve caps
When removing or fitting the wheels, tires or the tire pressure warning valves
and transmitters, contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional as the tire pressure warning valves
and transmitters may be damaged if not handled correctly.
Make sure to install the tire valve caps. If the tire valve caps are not installed,
water could enter the tire pressure warning valves and the tire pressure warn-
ing valves could be bound.
When replacing tire valve caps, do not use tire valve caps other than those
specified. The cap may become stuck.
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional or other qualified service shop as soon as possible. Make sure to
replace the tire pressure warning valve and transmitter when replacing the tire.
(P. 451)
Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes.
These conditions may cause losses in tire inflation pressure, reducing the cush-
ioning ability of the tires. In addition, driving on rough roads may cause dam-
age to the tires themselves, as well as the vehicle’s wheels and body.
Low profile tires (except 16-inch tires)
Low profile tires may cause greater damage than usual to the tire wheel when
sustaining impact from the road surface. Therefore, pay attention to the follow-
ing:
Be sure to use proper tire inflation pressure. If tires are under-inflated, they
may be damaged more severely.
Avoid potholes, uneven pavement, curbs and other road hazards. Failure to do
so may lead to severe tire and wheel damage.
If tire inflation pressure of each tire becomes low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

4697-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
CAUTION
When replacing wheels
Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in a loss of handling control.
Never use an inner tube in a leaking wheel which is designed for a tubeless
tire. Doing so may result in an accident, causing death or serious injury.
NOTICE
Replacing tire pressure warning valves and transmitters
Because tire repair or replacement may affect the tire pressure warning valves
and transmitters, make sure to have tires serviced by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional or
other qualified service shop. In addition, make sure to purchase your tire pres-
sure warning valves and transmitters at any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly with
non-genuine wheels.

4717-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
Remove the air conditioning fil-
ter from the filter case and
replace it with a new one.
The “UP” marks shown on the fil-
ter and the filter case should be
pointing up.
Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement may
be required. (For scheduled maintenance information, please refer to the “Lexus
Service Booklet” or “Lexus Warranty Booklet”.)
If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
5
NOTICE
When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the sys-
tem.

500
IS300h_EE(OM53B95E)8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional before towing.
The hybrid system is operating but the vehicle will not move.
The vehicle makes an abnormal sound.
If a tow truck is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency tow-
ing eyelet. This should only be
attempted on hard surfaced roads for
short distances at under 30 km/h (18
mph).
A driver must be in the vehicle to
steer and operate the brakes. The
vehicle’s wheels, drive train, axles,
steering and brakes must be in good
condition.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional or a commercial towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/provincial
and local laws.
Before towing
Emergency towing

5248-2. Steps to take in an emergency
IS300h_EE(OM53B95E)
*1: Refer to the separate “Lexus Service Booklet” or “Lexus Warranty Booklet”
for the maintenance interval applicable to your vehicle.
*2: For the EV drive mode operating conditions: P. 214
Indicates that the EV drive mode is not available*2
The reason the EV drive mode is not available
(the vehicle is idling, hybrid battery [traction bat-
tery] charge is low, speed is higher than the EV
drive mode operating speed range, accelerator
pedal is depressed too much) may be displayed.
A buzzer also sounds.
Use the EV drive mode when it becomes avail-
able.
Indicates that the EV drive mode has been automat-
ically canceled
*2
The reason the EV drive mode is not available
(the hybrid battery [traction battery] charge is
low, speed is higher than the EV drive mode
operating speed range, accelerator pedal is
depressed too much) may be displayed.
A buzzer also sounds.
Drive the vehicle for a while.
Warning messageDetails/Actions
(Except F
SPORT mod-
els)(F SPORT
models)
(Flashes) (Flashes)

5458-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53B95E)
Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
Take your vehicle to the nearest
Lexus dealer or authorized tire
dealer as soon as possible if any
tire goes flat.
The vehicle can be driven for a
maximum of 300 km (186 miles)
at a speed below 60 km/h (37
mph) after the tire pressure warn-
ing light comes on. (P. 510)
In some conditions (such as at high temperatures)
You cannot continue driving for up to 300 km (186 miles).
For the detailed information on run-flat tires
See the tire warranty booklet.
If you have a flat tire (vehicles with run-flat tires)
You can continue driving a vehicle with run-flat tires even if any tire
goes flat.In this case, slow down and drive with extra caution.
NOTICE
When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve
and transmitter, contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional as the tire pressure warning valve and
transmitter may be damaged if not handled correctly.
When driving over bumps
If a vehicle has a flat tire, the vehicle height will be lower than usual. Ensure
that nothing strikes the bottom of the vehicle.
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional or other qualified service shop as soon as possible. Make sure to
replace the tire pressure warning valve and transmitter when replacing the tire.
(P. 451)