Page 408 of 596

4086-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal
• The accelerator pedal shouldmove smoothly (without uneven
pedal effort or catching).
Hybrid transmission “Park” mecha-
nism• When parked on a slope and theshift lever is in P, is the vehicle
securely stopped?
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have appro- priate clearance from the floor?
(→P. 531)
• Does the brake pedal have the correct amount of free play?
(→P. 531)
Brakes
• The vehicle should not pull to one
side when the brakes are applied.
• The brakes should work effec- tively.
• The brake pedal should not feel spongy.
• The brake pedal should not get
too close to the floor when the
brakes are applied.
Head restraints (adjustable type)• Do the head restraints movesmoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzersfunction properly?
Lights • Do all the lights come on?
Parking brake
• Does the parking brake operate normally?
• When parked on a slope and the parking brake is on, is the vehicle
securely stopped?
Page 412 of 596

4126-3. 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. 424)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(→ P. 422)• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit cool-
ant level
(→ P. 420)
• “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
U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( → P. 417)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( →P. 457)• Fuse with same amperage rating as original
Hybrid battery
(traction battery)
air intake vent
(→ P. 450)
• Vacuum cleaner, etc.
• Phillips screwdriver
Light bulbs
(→ P. 460)• Bulb with same number and wattage rating as origi-
nal
• Flathead screwdriver• Wrench
Radiator/con-
denser (
→P. 421)⎯
Page 414 of 596
4146-3. Do-it-yourself maintenance
Pull the hood lock release lever.
The hood will pop up slightly.
Pull up the auxiliary catch lever
and lift the hood.
■Open hood warning buzzer
If the vehicle reaches a speed of 3 mph (5 km/h), the master warning light
flashes and a buzzer sounds to indicate that the hood is not fully closed.
Hood
Release the lock from the inside of the vehicle to open the hood.
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2
WARNING
■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.
Page 422 of 596

4226-3. Do-it-yourself maintenance
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.“MAX”
“MIN”
■Adding fluid
Make sure to check the fluid ty pe and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking effi-
ciency. Use only newly opened brake fluid.
Brake fluid
1
2
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemClean funnel
WARNING
■When filling the reservoir
Take care as brake fluid can harm your hands and 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 discomfort, see a doctor.
NOTICE
■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 out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious problem.
Page 426 of 596

4266-3. Do-it-yourself maintenance
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:
● Do not cause sparks by touching the 12-volt battery terminals with tools.
● Do not smoke or light a match near the 12-volt battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the 12-volt battery.
● Keep children away from the 12-volt battery.
■ Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-
volt battery in a garage or closed room where there is insufficient ventila-
tion.
■ How to recharge th e 12-volt battery
Only perform a slow charge (5 A or less). The 12-volt battery may explode if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.
■ When disconnecting th e 12-volt battery
Do not disconnect the negative (-) terminal on the body side. The discon-
nected negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.
■ When replacing the 12-volt battery
Use a 12-volt battery designed for this vehicle. Failure to do so may cause
gas (hydrogen) to enter the passenger compartment, causing a fire or
explosion.
For replacement of the 12-volt battery, contact your Toyota dealer.
Page 429 of 596
4296-3. Do-it-yourself maintenance
6
Maintenance and care
Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valve and trans mitters to detect low tire inflation
pressure before serious problems arise.
Vehicles without a tire inflat ion pressure display function
If the tire pressure drops below a predetermined level, the driver is
warned by a screen display and a warning light. ( →P. 483)
Vehicles with a tire inflat ion pressure display function
● The tire pressure detected by the tire pressure warning system can
be displayed on the multi-information display.
● If the tire pressure drops below a predetermined level, the driver is
warned by a screen display and a warning light. ( →P. 483)
Tire pressure warning system
4.2-inch display7-inch display
4.2-inch display7-inch display
Page 431 of 596
4316-3. Do-it-yourself maintenance
6
Maintenance and care
Select “Set Pressure” then
press and hold until
the tire pressure warning
light blinks 3 times.
Then a message will be dis-
played on the multi-information
display.
Vehicles with a tire inflation
pressure display function: “- -”
will be displayed on the multi-
information display for the
inflation pressure of each tire
while initialization is being per-
formed.
Vehicles with a tire inflation pressure display function: Drive
straight (with occasional left and right turns) at approximately 25
mph (40 km/h) or more for approximately 10 to 30 minutes.
Initialization is complete when the position of each tire is determined
and the inflation pressure of each ti re is displayed on the multi-infor-
mation display.
Initialization may take longer than approximately 1 hour in certain
situations, such as when the vehicle is stopped for a long time at
traffic lights, etc. ( →P. 437)
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Page 433 of 596

4336-3. Do-it-yourself maintenance
6
Maintenance and care
Select “Change Wheel” then
press and hold until
the tire pressure warning
light blinks slowly 3 times.
Then a message will be dis-
played on the multi-information
display.
When registration is being per-
formed, the tire pressure warn-
ing light will blink for
approximately 1 minute then
illuminate and “- -” will be dis-
played for the inflation pres-
sure of each tire on the multi-
information display.
Drive straight (with occasional left and right turns) at approxi-
mately 25 mph (40 km/h) or more for approximately 10 to 30 min-
utes.
Registration is complete when the tire pressure warning light turns
off and the inflation pressure of eac h tire is displayed on the multi-
information display.
Registration may take longer than approximately 1 hour in certain
situations, such as when the vehicle is stopped for a long time at
traffic lights, etc. ( →P. 439)
After registering the ID codes, make sure to initialize the tire pres-
sure warning system. ( →P. 430)
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