2021 TOYOTA AVALON HYBRID warning

4446-3. Do-it-yourself maintenance
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (P. 445)
●If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
●Never use a fuse of a higher amperage rating than that indicated, or use
any other object in place of a fuse.
●Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
●Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.

447
7When trouble arises
7-1. Essential information
Emergency flashers .......... 448
If your vehicle has
to be stopped in
an emergency ................. 449
If the vehicle is trapped
in rising water.................. 450
7-2. Steps to take in
an emergency
If your vehicle needs
to be towed ..................... 451
If you think something
is wrong .......................... 454
If a warning light turns
on or a warning buzzer
sounds ............................ 455
If a warning message
is displayed ..................... 465
If you have a flat tire.......... 471
If the hybrid system will
not start ........................... 482
If the electronic key
does not operate
properly ........................... 484
If the 12-volt battery
is discharged ................... 487
If your vehicle
overheats ........................ 494
If the vehicle becomes
stuck ............................... 498

4497-1. Essential information
7
When trouble arises
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.
Stop the vehicle in a safe place by the road.
If your vehicle has to be stopped in an
emergency
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or
more, or press briefly 3 times or more
Q
WARNING
■If the hybrid system has to be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the hybrid
system.
5

4507-1. Essential information
●Remove the seat belt first.
●If the door can be opened, open the door and exit the vehicle.
●If the door can not be opened, open the window using the power
window switch and exit the vehicle through the window.
●If the window can not be opened using the power window switch,
remain calm, wait until the water level inside the vehicle rises to the
point that the water pressure inside of the vehicle equals the water
pressure outside of the vehicle, and then open the door and exit the
vehicle.
If the vehicle is trapped in rising water
In the event the vehicle is submerged in water, remain calm and
perform the following.
WARNING
■Using an emergency hammer* for emergency escape
The rear side windows and rear window of this vehicle can be shattered by
an emergency hammer
* used for emergency escape, however, since the
windshield and front side windows are laminated glass they can not be
shattered by an emergency hammer
*.
*: Contact your Toyota dealer or aftermarket accessory manufacturer for
further information about an emergency hammer.
■Escaping the vehicle from the window
There are cases where escaping the vehicle from the window is not possi-
ble due to seating position, passenger body type, etc.
When using an emergency hammer, consider your seat location and the
size of the window opening to ensure that the opening is accessible and
large enough to escape.

451
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or a commercial towing service,
using a wheel-lift type truck or flatbed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■While towing
●When towing using cables or chains, avoid sudden starts, etc. which place
excessive stress on the towing eyelets, cables or chains. The towing eye-
lets, cables or chains may become damaged, broken debris may hit peo-
ple, and cause serious damage.
●Do not turn the power switch off.
There is a possibility that the steering wheel is locked and cannot be oper-
ated.
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged or electricity gen-
erated by the operation of the motor may
cause a fire to occur depending on the
nature of the damage or malfunction.

4527-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact
your Toyota dealer or commercial towing service before towing.
●The hybrid system warning message is shown on the multi-informa-
tion display and the vehicle does not move.
●The vehicle makes an abnormal sound.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type
truck
●Do not tow the vehicle from the rear when the power switch is off. The
steering lock mechanism is not strong enough to hold the front wheels
straight.
●When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed.
■To prevent damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent damage to the vehicle during emergency towing
Do not secure cables or chains to the suspension components.
Situations when it is necessary to contact dealers before towing
Towing with a wheel-lift type truck
From the frontFrom the rear
Release the parking brake.
Turn automatic mode off.
(P. 212)Use a towing dolly under the
front wheels.

4557-2. Steps to take in an emergency
7
When trouble arises
If a warning light turns on or a war ning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(Red)
Brake system warning light (warning buzzer)
Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
(Yellow)
Brake system warning light (warning buzzer)
Indicates a malfunction in:
• The regenerative braking system;
• The electronically controlled brake system; or
• The electric parking brake
Have the vehicle inspected by your Toyota dealer
immediately.
High coolant temperature warning light (warning
buzzer)
*1
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method (P. 494)
Charging system warning light*1
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Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Low engine oil pressure warning light (warning
buzzer)
*1
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.

4567-2. Steps to take in an emergency
Malfunction indicator lamp (warning buzzer)
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system; or
• The electronic hybrid transmission control system
Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light (warning buzzer)
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
Have the vehicle inspected by your Toyota dealer
immediately.
ABS warning light (warning buzzer)
Indicates a malfunction in:
• The ABS; or
• The brake assist system
Have the vehicle inspected by your Toyota dealer
immediately.
Brake Override System/Drive-Start Control/Intelligent
Clearance Sonar warning light (warning buzzer)
*1
When a buzzer sounds:
• Brake Override System is malfunctioning;
• Drive-Start Control is operating;
• Drive-Start Control is malfunctioning; or
• The Intelligent Clearance Sonar (if equipped) is operat-
ing (P. 300)
Follow the instructions displayed on the multi-infor-
mation display.
When a buzzer does not sound:
Brake Override System is operating
Release the accelerator pedal and depress the brake
pedal.
Parking brake indicator (warning buzzer)*2
It is possible that the parking brake is not fully engaged or
released
Operate the parking brake once again.
This light comes on when the parking brake is not
released. If the light turns off after the parking brake is fully
released, the system is operating normally.
Warning lightWarning light/Details/Actions