Lexus GS300h 2013 Owner's Manual

7276-1. Maintenance and care
6
Maintenance and care
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NOTICE
When cleaning the inside of the windshield (vehicles with LKA [Lane-
Keeping Assist])
Be careful not to touch the camera sensor (P. 338).
If the camera is accidentally scratched or hit, LKA may not operate prop-
erly or may cause a malfunction.
Cleaning the inside of the rear window
Do not use glass cleaner to clean the rear window, as this may cause dam-
age to the rear window defogger heater wires or antenna. Use a cloth
dampened with lukewarm water to gently wipe the window clean. Wipe
the window in strokes running parallel to the heater wires or antenna.
Be careful not to scratch or damage the heater wires or antenna.

7286-2. Maintenance
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Maintenance requirements
Scheduled maintenance should be performed at specified intervals
according to the maintenance schedule.
For details about maintenance items and schedules, refer to the “Lexus
Service Booklet” or “Lexus Warranty Booklet”.
What about do-it-yourself maintenance?
Many of the maintenance items are easy to do yourself if you have a little
mechanical ability and a few basic automotive tools.
Note, however, that some maintenance tasks require special tools and
skills. These are best performed by qualified technicians. Even if you’re
an experienced do-it-yourself mechanic, we recommend that repairs and
maintenance be conducted by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional. Any authorized Lexus
dealer or repairer will keep a record of maintenance, which could be use-
ful should you ever require Warranty Service. Should you choose to select
a qualified and equipped professional other than an authorized Lexus
repairer to service or maintain your vehicle, we recommend that you
request that a record of maintenance be kept.
To ensure safe and economical driving, day-to-day care and regu-
lar maintenance are essential. Lexus recommends the following
maintenance:
Scheduled maintenance
Do-it-yourself maintenance

7296-2. Maintenance
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Maintenance and care
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Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus rec-
ommends that maintenance service operations as well as other inspections
and repairs be carried out by authorized Lexus dealers or repairers or other
duly qualified and equipped professionals. For repairs and services covered
by your warranty, please visit an authorized Lexus dealer or repairer, who
will use genuine Lexus parts in repairing any difficulties you may encounter.
There can also be advantages in utilizing authorized Lexus dealers or repair-
ers for non-warranty repairs and services, as members of the Lexus network
will be able to expertly assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped profes-
sional will perform all of the scheduled maintenance on your vehicle reliably
and economically due to their experience with Lexus vehicles.
Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
Engine missing, stumbling or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
Vehicle pulls to one side when driven straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost
touches the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal (P. 1 1 0 )
If you notice any of these clues, take your vehicle to any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as
soon as possible. Your vehicle may need adjustment or repair.

7306-2. Maintenance
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CAUTION
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 12-volt battery
12-volt battery posts, terminals and related accessories contain lead and
lead compounds which are known to cause brain damage. Wash your hands
after handling.
(P. 748)

731
6 6-3. Do-it-yourself maintenance
Maintenance and care
GS450h_300h_OM_OM30D53E_(EE)
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the cor-
rect procedure as given in these sections.
ItemsParts and tools
12-volt battery condition (P. 749)
•Grease
• Conventional wrench
(for terminal clamp bolts)
Engine/power control unit
coolant level (P. 744)
•“To y o t a Super Long Life Cool-
ant” or a similar high quality eth-
ylene glycol-based non-silicate,
non-amine, non-nitrite and non-
borate coolant with long-life
hybrid organic acid technology
“Toyota Super Long Life Cool-
ant” is pre-mixed with 50% cool-
ant and 50% deionized water.
• Funnel (used only for adding
coolant)
Engine oil level (P. 741)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (P. 782)• Fuse with same amperage rating
as original

7326-3. Do-it-yourself maintenance
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Light bulbs (P. 803)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 747)
Tire inflation pressure (P. 772)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (P. 748)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
When working on the engine compartment
Make sure that the “POWER ON” on the multi-information display and
the “READY” indicator are both off.
Keep hands, clothing and tools away from the moving fan and engine
drive belt.
Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately. If you still experience dis-
comfort, consult a doctor.
ItemsParts and tools

733 6-3. Do-it-yourself maintenance
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Maintenance and care
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CAUTION
When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high.
(P. 747)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine
wear due to dirt in the air.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

7346-3. Do-it-yourself maintenance
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Hood
Pull the hood lock release
lever.
The hood will pop up slightly.
Pull up the auxiliary catch
lever and lift the hood.
Release the lock from the inside of the vehicle to open the hood.
1
2
CAUTION
Pre-driving check
Check that the hood is fully closed and locked.
If the hood is not locked properly, it may open while the vehicle is in
motion and cause an accident, which may result in death or serious injury.

735
6 6-3. Do-it-yourself maintenance
Maintenance and care
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Positioning a floor jack
Front
Rear
Ty p e A
Ty p e B
When raising your vehicle with a floor jack, position the jack cor-
rectly. Improper placement may damage your vehicle or cause
injury.

7366-3. Do-it-yourself maintenance
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