2022 TOYOTA TUNDRA key battery

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6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 402
Cleaning and protecting the vehicle interior ........... 406
6-2. Maintenance Maintenance requirements ................... 409
General maintenance ........ 411
Emission inspection and maintenance (I/M)
programs ......................... 414
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 415
Hood.................................. 417
Engine compartment ......... 419
Tires .................................. 431
Tire inflation pressure........ 442
Wheels .............................. 445
Air conditioning filter .......... 448
Wireless remote control/ electronic key battery ...... 451
Checking and replacing fuses ............................... 454
Light bulbs ......................... 457 7-1. Essential information
Emergency flashers ........... 472
If your vehicle has to be stopped in
an emergency.................. 473
If the vehicle is submerged or water on
the road is rising .............. 475
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 476
If you think something is wrong............................... 480
Fuel pump shut off system ............................. 481
If a warning light turns on or a warning buzzer
sounds ............................. 482
If a warning message is displayed ......................... 489
If you have a flat tire .......... 511
If the engine will not start ................................. 526
If the electronic key does not operate properly
(vehicles with a smart
key system) .................... 528
If the vehicle battery is discharged ....................... 530
If your vehicle overheats.... 534
If the vehicle becomes stuck ................................ 536
6Maintenance and care7When trouble arises

1072. Instrument cluster
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Instrument cluster
■Setting items
●Setting items are not selectable during driving and cannot be o perated.
Also, the settings screen is temporarily canceled in the follow ing situations.
• A warning message is displayed.
• The vehicle starts off.
● Settings for functions not equipped to the vehicle are not displayed.
● When a function is turned off, the related settings for that fu nction are not
selectable.
■ Pop-up display
In some situations, such as when a switch operation is performe d, a pop-up
display will be temporarily displayed on the multi-information display.
■ When disconnecting and reco nnecting battery terminals
The drive information will be reset.
■ Ending display
When the engine switch is turned off, each of the following wil l be displayed
on the multi-information display, and will extinguish after app roximately
30 seconds.
● Distance traveled
● Average fuel economy
● Distance to empty
■ Tire inflation pressure (vehicles with tire pressure warning sy stem)
● It may take a few minutes to display the tire inflation pressur e after the
engine switch is turned to the “ON” position (vehicles without a smart key
system) or IGNITION ON mode (vehicles with a smart key system). It may
also take a few minutes to display the tire inflation pressure after inflation
pressure has been adjusted.
● “---” may be displayed if the tire position information cannot be determined
due to unfavorable radio wave conditions.
● Tire inflation pressure changes with temperature. The displayed values may
also be different from the values measured using a tire pressur e gauge.
■ Liquid crystal display
P. 100

1143-1. Key information
To take out the mechanical key,
push the release button and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one side.
If the key cannot be inserted in a
lock cylinder, turn it over and reat-
tempt to insert it.
After using the mechanical key, store it in the electronic key. Carry the
mechanical key together with the electronic key. If the electronic key
battery is depleted or the ent ry function does not operate prop erly, you
will need the mechanical key. ( P. 528)
■Panic mode (type C or type D)
Type C
Type D
Using the mechanical key (type D)
When is pressed for longer than
about 1 second, an alarm will sound inter-
mittently and the vehicle lights will flash to
deter any person from trying to break into
or damage your vehicle.
To stop the alarm, press any button on the
wireless remote control.
When is pressed for longer than
about 1 second, an alarm will sound inter-
mittently and the vehicle lights will flash to
deter any person from trying to break into
or damage your vehicle.
To stop the alarm, press any button on the
electronic key.

1163-1. Key information
■Key battery depletion (type C or type D)
Type C
If the wireless remote control function does not operate, the b attery may be
depleted. Replace the battery when necessary. ( P. 451)
Type D
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin wh en the engine
stops. ( P. 508)
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( P. 451)
• The smart key system or the wireless remote control does not o perate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a ma gnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■ Replacing the battery (type C or type D)
P. 451
■ Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
your Toyota dealer for details.
■ Customization (type C or type D)
Settings (e.g. wireless remote control system) can be changed.
(Customizable features: P. 568)

1173-1. Key information
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Operation of each component
■Certification for wireless remote control (type C)
For vehicles sold in U.S.A. and New Caledonia
FCC ID: HYQ23AAH
FCC ID: HYQ23AAN
FCC ID: HYQ12BEL
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause har mful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party re sponsible for
compliance could void the user’s authority to operate the equip ment.

The FCC ID/IC Certification number is affixed inside the equipment. You can
find the ID/number when replacing the battery.
For vehicles sold in Canada
NOTE:
This device complies with Industry Canada’s licence-exempt RSSs . Opera-
tion is subject to the following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may
cause undesired operation of the device.

The FCC ID/IC Certification number is affixed inside the equipment. You can
find the ID/number when replacing the battery.
NOTE:
Le présent appareil est conforme aux CNR d’Industrie Canada app licables
aux appareils radio exempts de licence. L’exploitation est auto risée aux deux
conditions suivantes:
(1) l’appareil ne doit pas produire de brouillage;
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi,
même si le brouillage est susceptible d’en compromettre le fonctionnement.

L’identification FCC/Ie numéro d’accréditation IC est apposé(e) à l’intérieur
de l’appareil. Cette identification/ce numéro est visible au re mplacement de la
pile.
■ Certification for wireless remote control (type D)
P. 137

1213-2. Opening, closing and locking the doors
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Operation of each component
■If the smart key system or the wireless remote control does not operate
properly (if equipped)
Use the mechanical key to lock and unlock the doors. ( P. 528)
Replace the battery with a new one if it is depleted. ( P. 451)
◆Door lock switches
Locks all the doors
Unlocks all the doors
◆Inside lock buttons
Locks the door
Unlocks the door
The front doors can be opened
by pulling the inside handle
even if the lock buttons are in
the lock position.
Unlocking and locking the doors from the inside
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1333-2. Opening, closing and locking the doors
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Operation of each component■Battery-saving function
The battery-saving function will be activated in order to preve nt the electronic
key battery and the battery from being discharged while the veh icle is not in
operation for a long time.
● In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer , the doors
cannot be unlocked at any door except the driver’s door. In thi s case, take
hold of the driver’s door handle, or use the wireless remote co ntrol or the
mechanical key, to unlock the doors.
The system will resume operation when
● The vehicle is locked using the door handle lock switch when ca rrying the
electronic key on your person.
● The vehicle is locked/unlocked using the wireless remote contro l. (P. 119)
● The vehicle is locked/unlocked using the mechanical key. ( P. 528)
■ Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized by stopping
the electronic key from receiving radio waves. Interior alarm sounds
continuously
An attempt was made
to open the door and
exit the vehicle when
the shift lever was not
in P.
Shift the shift lever to P.
The engine switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was
opened while the
engine switch was in
ACCESSORY mode). Turn the engine switch
off and close the
driver’s door.
Press twice while pressing and
holding . Confirm that the electronic
key indicator flashes 4 times.
While the battery-saving mode is set, the
smart key system cannot be used. To
cancel the function, press any of the elec-
tronic key buttons.
AlarmSituationCorrection procedure

1343-2. Opening, closing and locking the doors
■Conditions affecting operation
The smart key system uses weak radio waves. In the following si tuations, the
communication between the electronic key and the vehicle may be affected,
preventing the smart key system, wireless remote control and en gine immobi-
lizer system from operating properly. (Ways of coping: P. 528)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio stati on, large dis-
play, airport or other facility that generates strong radio wav es or electrical
noise
● When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
● When the electronic key is in contact with, or is covered by th e following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When multiple electronic keys are in the vicinity
● When other wireless keys (that emit radio waves) are being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to the
back window
● When the electronic key is placed near a battery charger or ele ctronic
devices