2021 TOYOTA AVALON HYBRID check engine

TABLE OF CONTENTS4
5-1. Using the
air conditioning system
and defogger
Automatic air conditioning
system............................. 338
Heated steering wheel/
seat heaters/
seat ventilators ................ 349
5-2. Using the interior lights
Interior lights list ................ 352
• Interior light ................... 353
• Personal lights .............. 353
• Ambient lights ............... 354
5-3. Using the storage
features
List of storage features...... 355
• Glove box...................... 356
• Console box .................. 356
• Bottle holders ................ 357
• Cup holders .................. 358
• Auxiliary boxes.............. 359
• Open tray ...................... 360
Trunk features ................... 361
5-4. Other interior features
Other interior features ....... 362
• Sun visors ..................... 362
• Vanity mirrors................ 362
• Power outlet .................. 363
• USB charging ports....... 364
• Wireless charger ........... 366
• Armrest ......................... 375
• Assist grips ................... 375
• Coat hooks.................... 376
Garage door opener .......... 3776-1. Maintenance and care
Cleaning and protecting
the vehicle exterior .......... 386
Cleaning and protecting
the vehicle interior ........... 389
6-2. Maintenance
Maintenance
requirements ................... 392
General maintenance ........ 394
Emission inspection and
maintenance (I/M)
programs ......................... 398
6-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ...................... 399
Hood .................................. 401
Positioning a floor jack....... 402
Engine compartment ......... 403
12-volt battery .................... 411
Tires................................... 415
Tire inflation pressure ........ 427
Wheels............................... 430
Air conditioning filter .......... 432
Cleaning the hybrid
battery (traction battery)
air intake vent and
filter.................................. 434
Electronic key battery ........ 439
Checking and replacing
fuses ................................ 442
Light bulbs ......................... 445
5Interior features6Maintenance and care

15Pictorial index
Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 226
Precautions for winter season . . . . . . . . . . . . . . . . . . . . . . . . . P. 333
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 230
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 504
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 415
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 508
Winter tires/tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 333
Checking/rotation/tire pressure warning system . . . . . . . . .P. 415
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 471
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 401
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 401
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 505
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 494
Front turn signal lights/parking lights . . . . . . . . . . . . . P. 211, 218
Headlights/daytime running lights . . . . . . . . . . . . . . . . . . . . P. 218
Front side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Daytime running lights/parking lights . . . . . . . . . . . . . . . . . P. 218
Front turn signal lights/cornering light . . . . . . . . . . . . P. 211, 218
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211
Rear turn signal lights/ rear side marker lights/
tail lights/stoplights . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 211, 218
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 205
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 445, Watts: P. 509)
8
9
10
11
12
13
14
15
16
17
*: If equipped

1012. Instrument cluster
2
Instrument cluster
■Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even
when vehicle operation and driving conditions are the same.
■Outside temperature display
In the following situations, the correct outside temperature may not be dis-
<0053004f0044005c00480047000f00030052005500030057004b004800030047004c00560053004f0044005c000300500044005c000300570044004e00480003004f00520051004a0048005500030057004b00440051000300510052005500500044004f00
030057005200030046004b00440051004a0048001d0003[
●When stopped, or driving at low speeds (less than 16 mph [25 km/h])
●When the outside temperature has changed suddenly (at the entrance/exit
of a garage, tunnel, etc.)
●When “” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Toyota dealer.
NOTICE
■To prevent damage to the engine and its components
The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (P. 494)

1854-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY”
indicator is illuminated. This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake
pedal will result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a diffi-
culty in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
●The driver should pay extra attention to pedestrians when the vehicle is
powered only by the electric motor (traction motor). As there is no engine
noise, the pedestrians may misjudge the vehicle’s movement.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot
parts may cause a fire if there is any flammable material nearby.
●During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control,
however, power assist to the steering will be lost. This will make it more
difficult to steer smoothly, so you should pull over and stop the vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 449
●Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (P. 206)
●Do not adjust the display, the positions of the steering wheel, the seat, or
the inside or outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
●Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.

1874-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when needed.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■When the vehicle is stopped
●Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the vehicle may accel-
erate suddenly and unexpectedly, causing an accident.
●In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated, and apply the parking brake as necessary.
●If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
●Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette lighters, spray cans, or soft drink cans in
the vehicle when it is in the sun.
Doing so may result in the following:
• Gas may leak from a cigarette lighter or spray can, and may lead to a
fire.
• The temperature inside the vehicle may cause the plastic lenses and
plastic material of glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray over the
interior of the vehicle, and may also cause a short circuit in the vehicle’s
electrical components.
●Do not leave cigarette lighters in the vehicle. If a cigarette lighter is in a
place such as the glove box or on the floor, it may be lit accidentally when
luggage is loaded or the seat is adjusted, causing a fire.
●Do not attach adhesive discs to the windshield or windows. Do not place
containers such as air fresheners on the instrument panel or dashboard.
Adhesive discs or containers may act as lenses, causing a fire in the vehi-
cle.

1894-1. Before driving
4
Driving
NOTICE
■When driving the vehicle
●Do not depress the accelerator and brake pedals at the same time during
<00470055004c0059004c0051004a000f00030044005600030057004b004c0056000300500044005c0003005500480056005700550044004c005100030057004b00480003004b005c00450055004c004700030056005c005600570048005000030052005800
570053005800570011[
●Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.
■When parking the vehicle
Always set the parking brake and shift the shift lever to P. Failure to do so
may cause the vehicle to move or the vehicle may accelerate suddenly if
the accelerator pedal is accidentally depressed.
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for
an extended period of time.
Doing so may damage the power steering motor.
●When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire (P. 471)
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, etc.
●Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.

2094-2. Driving procedures
4
Driving
■When driving with dynamic radar cruise control with full-speed range
activated
Even when performing the following actions with the intent of enabling engine
braking, engine braking will not activate because radar cruise control with full-
speed range will not be canceled.
●<003a004b004c004f0048000300470055004c0059004c0051004a0003004c0051000300270003005200550003003600030050005200470048000f000300470052005a00510056004b004c00490057004c0051004a0003005700520003001800030052005500
0300170011[
●When switching the driving mode to sport mode while driving in the D posi-
tion. (
P. 321)
■Restraining sudden start (Drive-start Control)
P. 184
■Shift lock system
The shift lock system is a system to prevent accidental operation of the shift
lever in starting.
The shift lever can be shifted from P only when the power switch is in the ON
<0050005200470048000f00030057004b00480003004500550044004e004800030053004800470044004f0003004c00560003004700480053005500480056005600480047000300440051004700030057004b004800030056004b004c004900570003005500
48004f00480044005600480003004500580057005700520051[ is pushed.
■If the shift lever cannot be shifted from P
First, check whether the brake pedal is being depressed.
If the shift lever cannot be shifted even though the brake pedal is depressed
and the shift release button is pushed, there may be a problem with the shift
lock system. Have the vehicle inspected by your Toyota dealer immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Releasing the shift lock:
Set the parking brake.
Turn the power switch off.
Depress the brake pedal.
Pry the cover up with a flathead screw-
driver or equivalent tool.
To prevent damage to the cover, cover
the tip of the screwdriver with a rag.
Press and hold the shift lock override
button and then push the button on the
shift knob.
The shift lever can be shifted while both
buttons are pressed.
1
2
3
4
5

3314-6. Driving tips
4
Driving
◆When braking
Make sure to operate the brakes gently and in a timely manner. A
greater amount of electrical energy can be regenerated when slow-
ing down.
◆Delays
Repeated acceleration and deceleration, as well as long waits at
traffic lights, will lead to bad fuel economy. Check traffic reports
before leaving and avoid delays as much as possible. When driving
in a traffic jam, gently release the brake pedal to allow the vehicle to
move forward slightly while avoiding overuse of the accelerator
pedal. Doing so can help control excessive gasoline consumption.
◆Highway driving
Control and maintain the vehicle at a constant speed. Before stop-
ping at a toll booth or similar, allow plenty of time to release the
accelerator and gently apply the brakes. A greater amount of elec-
trical energy can be regenerated when slowing down.
◆Air conditioning
Use the air conditioning only when necessary. Doing so can help
reduce excessive gasoline consumption.
In summer: When the ambient temperature is high, use the recircu-
lated air mode. Doing so will help to reduce the burden on the air
conditioning system and reduce fuel consumption as well.
In winter: Because the gasoline engine will not automatically cut out
until it and the interior of the vehicle are warm, it will consume fuel.
Also, fuel consumption can be improved by avoiding overuse of the
heater.
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. Improper
tire inflation pressure can cause poor fuel economy.
Also, as snow tires can cause large amounts of friction, their use on
dry roads can lead to poor fuel economy. Use tires that are appro-
priate for the season.