2021 TOYOTA TUNDRA warning

5327-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material to help provide tract ion
under the rear wheels.
Restart the engine.
Shift the shift lever to D or R and release the parking brake. Then,
while exercising caution, de press the accelerator pedal.
■When it is difficult to free the vehicle
Press to turn off TRAC.
Turn off TRAC and/or VSC if these functions are hampering your attempts to
free the vehicle. ( P. 321, 323)
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
WARNING
■When attempting to f ree a stuck vehicle
If you choose to push the vehicle back and forth to free it, ma ke sure the
surrounding area is clear to avoid striking other vehicles, obj ects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
■ When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pe dal depressed.
This may lead to unexpected rapid acceleration of the vehicle t hat may
cause an accident resulting in death or serious injury.
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5337-2. Steps to take in an emergency
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When trouble arises
NOTICE
■To avoid damage to the trans mission and other components
● Avoid spinning the rear wheels and depressing the accelerator p edal more
than necessary.
● If the vehicle remains stuck even after these procedures are pe rformed,
the vehicle may require towing to be freed.
● When a warning message for the automatic transmission fluid tem perature
is displayed while attempting to free a stuck vehicle, immediat ely remove
your foot from the accelerator pedal and wait until the warning message
disappears. Otherwise, the transmission may become damaged.
( P. 493)

5588-1. Specifications
■Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ability to stop on wet pavement a s
measured under controlled conditions on specified government te st
surfaces of asphalt and concrete.
A tire marked C may have p oor traction performance.
Warning: The traction grade assigned to this tire is based on b raking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.
■Temperature A, B, C
The temperature grades are A ( the highest), B, and C, representing
the tire’s resistance to the ge neration of heat and its ability to dissi-
pate heat when tested under contr olled conditions on a specified
indoor laboratory test wheel.
Sustained high temperature can c ause the material of the tire to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure.
Grade C corresponds to a level of performance which all passeng er
car tires must meet under the Fe deral Motor Vehicle Safety Stan-
dard No. 109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is pro perly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can c ause heat buildup and possible t ire
failure.

5678-2. Customization
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Vehicle specifications
■LDA (Lane Departure Alert)* ( P. 272)
*: If equipped
■
PCS (Pre-Collision System)* (  P. 260)
*: If equipped
■
BSM (Blind Spot Monitor)* (  P. 305)
*: If equipped
FunctionDefault settingCustomized
setting
LDA sensitivity 1 (Standard) 2 (High)O—O
Sway warning ONOFFO—O
Sway warning sensitivity 2 (Standard) 1 (Low)O—O3 (High)
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FunctionDefault settingCustomized
setting
PCS ONOFFO—O
PCS sensitivity 2 (Middle)1 (Near)O—O3 (Far)
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FunctionDefault settingCustomized
setting
BSM ONOFFO—O
BSM brightness BrightDimO—O
RCTA
(Rear Cross Traffic Alert) ON OFFO—O
RCTA volume
21O—O3
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5698-2. Customization
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Vehicle specifications
■Smart key system and wireless remote control* ( P. 1 2 7 )
*: If equipped
■
Smart key system* (  P. 127, 138)
*: If equipped
FunctionDefault settingCustomized
setting
Operation signal
(Emergency flashers) On Off — O O
Operation signal
(Buzzer) On Off — — O
Operation buzzer volume Level 5 Off to level 7 O O O
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked 60 seconds
Off
—O O
30 seconds
120 seconds
Open door warning
buzzerOnOff — —O
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FunctionDefault settingCustomized setting
Smart key systemOnOff——O
Number of permissible
times of continuous smart
lock Twice Unlimited — — O
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5738-2. Customization
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Vehicle specifications
■Vehicle customization
●When the speed-detecting automatic door lock function and shift position
linked door locking function (shifting gears to a position other than P locks
all doors) are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, al l the doors will
be locked.
• If the vehicle is started with all the doors locked, the speed-detecting auto- matic door lock function would not operate.
• If the vehicle is started with any the door unlocked, the spee d-detecting
automatic door lock function will operate.
● When the doors remain closed after unlocking the doors and the automatic
door lock function (Time elapsed before the automatic door lock function is
activated if a door is not opened after being unlocked) activates, the signals
will be generated in accordance with operation signal (buzzers) and the
operation signal (emergency flashers) settings.
WARNING
■ During customization
As the engine needs to be running during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or seriou s health haz-
ard.
NOTICE
■ During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

5748-3. Items to initialize
Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the battery being reconnected, or main -
tenance being performed on the vehicle:
ItemWhen to initializeReference
Moon roof
• After reconnecting or chang- ing the battery
• After changing a fuse
P. 181
Message indicating mainte-
nance is required• After the maintenance is per- formedP. 407
Tire pressure warning sys-
tem• When rotating the tires.
• When changing the tire size.P. 428

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For owners
When the truck is used to carry a slide-in camper, the total cargo load
of the truck consists of the manu facturer’s camper weight figure, the
weight of installed additional ca mper equipment not included in the
manufacturer’s camper weight figure, the weight of camper cargo , and
the weight of passengers in the camper. The total cargo load sh ould
not exceed the truck’s cargo weight rating and the camper’s cen ter of
gravity should fall within the truck’s recommended center of gr avity
zone when installed.
Camper center of gravity
Recommended center of grav-
ity location zone
Double Cab models42.6 in. (1082mm)37.6 in. (955 mm)CrewMax models
WARNING
■Loading precaution
If a load is too far back, it can cause dangerous handling. If it is too far for-
ward, the front axle may be overloaded.
Cargo weight rating and proper matching
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