2021 TOYOTA AVALON HYBRID lock

4326-3. Do-it-yourself maintenance
Turn the power switch off.
Open the glove box and
remove the glove box cover
inside the glove box.
Remove the filter cover.
Unlock the filter cover.
Move the filter cover in the
direction of the arrow, and
then pull it out of the claws.
Remove the filter case.
There may be foreign objects on
top of the air conditioning filter.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
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4396-3. Do-it-yourself maintenance
6
Maintenance and care
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Release the lock and remove
the mechanical key.
Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the
electronic key module may stick to
the cover and the battery may not
be visible. In this case, remove the
electronic key module in order to
remove the battery.
Insert a new battery with the “+” terminal facing up.
Electronic key batter y
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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4406-3. Do-it-yourself maintenance
When installing the key cover and mechanical key, install by con-
ducting and with the directions reversed.
Operate the or switch and check that the doors can
be locked/unlocked.
■When replacing the key battery
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■Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
●Replace only with the same or equivalent type recommended by the manu-
facturer.
●Dispose of used batteries according to local laws.
■If the key battery is depleted
The following symptoms may occur:
●The smart key system and wireless remote control will not function properly.
●The operational range will be reduced.
WARNING
■Battery precautions
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not swallow the battery. Doing so may cause chemical burns.
●A coin battery or button battery is used in the electronic key. If a battery is
swallowed, it may cause severe chemical burns in as little as 2 hours and
may result in death or serious injury.
●Keep away new and removed batteries from children.
●If the cover cannot be firmly closed, stop using the electronic key and stow
the key in the place where children cannot reach, and then contact your
Toyota dealer.
●If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.
■To prevent battery explosion or leakage of flammable liquid or gas
●Replace the battery with a new battery of the same type. If a wrong type of
battery is used, it may explode.
●Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
●Do not burn, break or cut a battery.
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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.

4687-2. Steps to take in an emergency
■If “Hybrid System Overheated Output Power Reduced” is shown
This message may be displayed when driving under severe operating condi-
tions. (For example, when driving up a long steep hill.)
Handling method: P. 494
■If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is shown
The filter may be clogged, the air intake vent may be blocked or there may be
a gap in the duct.
●If the air intake vent or filter is dirty, refer to P. 434 for cleaning the air intake
vent and filter.
●If the message is being displayed and the air intake vent and filter are not
dirty, have the vehicle inspected at your Toyota dealer.
■If “Traction Battery Needs to be Protected Refrain From the Use of N
Position” is shown
This message may be displayed when the shift lever is in N.
As the hybrid battery (traction battery) cannot be charged when the shift lever
is in N, shift the shift lever to P when the vehicle is stopped.
■If “Traction Battery Needs to be Protected Shift into P to Restart” is
shown
This message is displayed when the hybrid battery (traction battery) charge
has become extremely low because the shift lever has been left in N for a cer-
tain amount of time.
When operating the vehicle, shift to P and restart the hybrid system.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
power switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■If “Shift Is in N Release Accelerator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift lever is in N. Release the accelerator pedal and shift the shift lever to
D or R.
■If “Press Brake When Vehicle Is Stopped Hybrid System May Overheat”
is shown
Message is displayed when the accelerator pedal is depressed to maintain
the vehicle position when stopped on a upward slope, etc.
If this continues, the hybrid system may overheat.
Release the accelerator pedal and depress the brake pedal.

4697-2. Steps to take in an emergency
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When trouble arises
■If “Auto Power Off to Conserve Battery” is displayed
Power was turned off due to the automatic power off function.
Next time when starting the hybrid system, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.
■If “A New Key has been Registered Contact Your Dealer for Details” is
displayed
This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately one week after a
new electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.
■When “Headlight System Malfunction Visit Your Dealer” is displayed
The following systems may be malfunctioning. Have the vehicle inspected by
your Toyota dealer immediately.
●The LED headlight system
●Automatic High Beam
■If a message that indicates the malfunction of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert with steering control)
●Dynamic radar cruise control with full-speed range
●Automatic High Beam
■If “Maintenance Required Soon” is displayed
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message after the main-
tenance is performed. (P. 393)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.

4827-2. Steps to take in an emergency
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly. (P. 485)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
●There may be a malfunction in the immobilizer system.
(P. 86)
●There may be a malfunction in the steering lock system.
●The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 483)
●The temperature of the hybrid battery (traction battery) may be
extremely low (below approximately -22°F [-30°C]). (P. 81, 198)
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 487)
●The 12-volt battery terminal connections may be loose or corroded.
(P. 411)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 196)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.