2021 TOYOTA AVALON HYBRID Owners Manual (in English)

5058-1. Specifications
8
Vehicle specifications
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up the engine and turn off the hybrid system, wait
more than 5 minutes, and check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat-
isfy the following grade and viscosity.
Oil grade: API SN/RC multigrade engine oil
Recommended viscosity: SAE 0W-16
SAE 0W-16 is the best choice for
good fuel economy and good start-
ing in cold weather.
If SAE 0W-16 is not available, SAE
0W-20 oil may be used. However,
it must be replaced with SAE 0W-
16 at the next oil change.
Oil viscosity (0W-16 is explained here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil which allows cold
startability. Oils with a lower value before the W allow for easier starting of
the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the oil when the
oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
Lubrication system
Oil capacity
(Drain and refill ―
reference
*)
With filter
Without filter
4.8 qt. (4.5 L, 4.0 Imp. qt.)
4.4 qt. (4.2 L, 3.7 Imp. qt.)
Outside temperature

5068-1. Specifications
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
Cooling system
Capacity
(Reference)
Gasoline engine
6.4 qt. (6.1 L, 5.4 Imp. qt.)
Power control unit
1.9 qt. (1.8 L, 1.6 Imp. qt.)
Coolant typeUse either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and
non-borate coolant with long-life hybrid
organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
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5078-1. Specifications
8
Vehicle specifications
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Toyota dealer.
*: Minimum pedal clearance when depressed with a force of 67 lbf (300 N, 31
kgf) while the hybrid system is operating.
Electrical system
12-volt battery
Open voltage at
68F (20C):12.0 V or higher
If the voltage is lower than the standard value,
charge the battery.
(When checking the voltage, after turning the
power switch off, wait for 30 seconds with the
high beam headlights illuminated, then turn the
high beam headlights off and check the voltage.)
Charging rates5 A max.
Hybrid transmission
Fluid capacity*4.1 qt. (3.9 L, 3.4 Imp. qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than the above type may cause abnormal
noise or vibration, or ultimately damage the transmission of your vehicle.
Brakes
Pedal clearance*3.3 in. (85 mm)
Pedal free play 0.04  0.24 in. (1  6 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Fluid typeSAE J1703 or FMVSS No.116 DOT 3
SAE J1704 or FMVSS No.116 DOT 4
Steering
Free play Less than 1.2 in. (30 mm)

5088-1. Specifications
17-inch tires
18-inch tires
Tires and wheels
Tire size 215/55R17 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire
inflation pressure)Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph
[160 km/h]) (in countries where such
speeds are permitted by law)
Add 5 psi (30 kPa, 0.3 kgf/cm
2 or bar) to
the front tires and rear tires. Never
exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size 17  7 1/2 J, 17  4 T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size 235/45R18 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph
[160 km/h]) (in countries where such
speeds are permitted by law)
Add 5 psi (30 kPa, 0.3 kgf/cm
2 or bar) to
the front tires and rear tires. Never
exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size 18  8 J, 17  4 T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

5098-1. Specifications
8
Vehicle specifications
19-inch tires
A: Wedge base bulbs
B: Double end bulbs
*: Light bulbs not listed in this table are LED bulbs.
Tire size 235/40R19 92V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire
inflation pressure)Driving under normal conditions
Front:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Driving at high speeds (above 100 mph
[160 km/h]) (in countries where such
speeds are permitted by law)
Add 5 psi (30 kPa, 0.3 kgf/cm
2 or bar) to
the front tires and rear tires. Never
exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size 19  8 J, 17  4 T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs*
Light bulbsBulb No.WTy p e
InteriorDoor courtesy lights 168 5 A
Vanity lights 7065 1.4 B
Trunk light5A

5108-1. Specifications
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gaso-
line you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
■Recommendation of the use of gasoline containing detergent additives
●Toyota recommends the use of gasoline that contains detergent additives to
avoid the build-up of engine deposits.
●All gasoline sold in the U.S.A. contains minimum detergent additives to
clean and/or keep clean intake systems, per EPA’s lowest additives concen-
tration program.
●Toyota strongly recommends the use of Top Tier Detergent Gasoline. For
more information on Top Tier Detergent Gasoline and a list of marketers,
please go to the official website www.toptiergas.com.
Fuel information
You must only use unleaded gasoline.
Select octane rating 87 (Research Octane Number 91) or higher.
Use of unleaded gasoline with an octane rating lower than 87
may result in engine knocking. Persistent knocking can lead to
engine damage.
At minimum, the gasoline you use should meet the specifications of
ASTM D4814 in the U.S.A..

5118-1. Specifications
8
Vehicle specifications
■Recommendation of the use of low emissions gasoline
Gasolines containing oxygenates such as ethers and ethanol, as well as
reformulated gasolines, are available in some cities. These fuels are typically
acceptable for use, providing they meet other fuel requirements.
Toyota recommends these fuels, since the formulations allow for reduced
vehicle emissions.
■Non-recommendation of the use of blended gasoline
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
●Toyota does not recommend the use of gasoline containing methanol.
■Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If this
happens, contact your Toyota dealer for service.
■If your engine knocks
●Consult your Toyota dealer.
●You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern. ●Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30, E50, E85 (which are only some
examples of fuel containing more than
15% ethanol).
DO NOT use gasoline contain-
ing more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

5128-1. Specifications
NOTICE
■Notice on fuel quality
●Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
●Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
●Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine knocking, etc.) is
encountered after using a different type of fuel, discontinue the use of that
type of fuel.
■When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.