tires TOYOTA TUNDRA 2021 Owners Manual (in English)

24
FEATURES & OPERATIONS
Push and turnTurn
Shifting between “2WD” and “4H”
Reduce speed to less than 62 mph, then turn control to “2WD” or “\
4H.”
Shifting between “4H” and “4L”
When stopped, shift to “N” position, then push and turn to “4L”\
from “4H.”
NOTE: For best fuel economy and performance under normal driving
conditions, keep in “2WD” position.
2WDHigh speed (2WD) Normal driving on dry hard-surfaced roads.
4HHigh speed (4WD) For driving only on roads that permit the tires to
slide, like off-road, icy or snow-covered roads.
4L
Low speed (4WD)
For maximum power and traction when climbing or descending steep
hills, off-road driving, and hard pulling in sand, mud or deep snow.
Turn
Two & four-wheel drive selector (if equipped)
The trailer brakes can be controlled by the Trailer brake controller via\
the 7-pin
connector. By selecting the type of brakes that are being used on the tr\
ailer
(electric or electric-over-hydraulic) and setting the gain for the con\
troller, the
manual TRAILER BRAKE OUTPUT slider is used to slow just the trailer. The\
vehicle
brake pedal will also slow down as well as stop the trailer when applied\
. Gain
values, manual brake outputs, trailer brake types and the trailer connec\
tion status
are displayed in the multi-information display.
Refer to the Owner’s Manual for more details.
“Tow/Haul” mode is ideal for use when carrying heavy loads. When t\
he TOW/HAUL
switch is pressed, throttle response and transmission control are optimi\
zed for the
high performance operation. As fuel economy is reduced while in “Tow/\
Haul” mode,
deactivating when driving without a load is recommended.
• Upshifts occur at higher engine speeds to expand the use of lower g\
ear ranges, enhancing power performance during towing and preventing repeated gear
changes.
• Downshifts occur at a greater accelerator pedal angle to allow the vehic\
le to stay
in a higher gear, reducing repeated gear changes.
• Downshifts occur at a lower accelerator pedal angle to allow the vehicle\
to stay in
a lower gear, enhancing towing ability.
• When the accelerator pedal is wide open, upshift timing is optimized to \
effectively
use the maximum engine power range available.
When Tow/Haul is engaged, the opening angle of the electronically contro\
lled
throttle is wider for any given accelerator pedal position than normal, \
enhancing
acceleration feeling and response.
• During uphill driving, the gear position is held to prevent repeated ups\
hifting.
• During downhill driving, downshifting to lower gears will occur to effec\
tively use
engine braking.
Refer to the Owner’s Manual for more details on this system before at\
tempting to
use it.
Floor shift type
Trailer brake controller (if equipped)
ENGINE CONTROL
ENHANCED SHIFT CONTROL
UPHILL/DOWNHILL SHIFT FEATURES
Manual TRAILER
BRAKE OUTPUT slider
Trailer
connector
indicator
Trailer brake type
GAIN (+/-) selection button
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25
Shifting between “2WD” and “4H”
Reduce speed to less than 62 mph, then turn control to “2WD” or “\
4H.”
Shifting between “4H” and “4L”
When stopped, shift to “N” position, then push and turn to “4L”\
from “4H.”
NOTE: For best fuel economy and performance under normal driving
conditions, keep in “2WD” position.
High speed (2WD) Normal driving on dry hard-surfaced roads.
High speed (4WD) For driving only on roads that permit the tires to
slide, like off-road, icy or snow-covered roads.
Low speed (4WD)
For maximum power and traction when climbing or descending steep
hills, off-road driving, and hard pulling in sand, mud or deep snow.
Two & four-wheel drive selector (if equipped)
The trailer brakes can be controlled by the Trailer brake controller via\
the 7-pin
connector. By selecting the type of brakes that are being used on the tr\
ailer
(electric or electric-over-hydraulic) and setting the gain for the con\
troller, the
manual TRAILER BRAKE OUTPUT slider is used to slow just the trailer. The\
vehicle
brake pedal will also slow down as well as stop the trailer when applied\
. Gain
values, manual brake outputs, trailer brake types and the trailer connec\
tion status
are displayed in the multi-information display.
Refer to the Owner’s Manual for more details.
TOW/HAUL switch (if equipped)
“Tow/Haul” mode is ideal for use when carrying heavy loads. When t\
he TOW/HAUL
switch is pressed, throttle response and transmission control are optimi\
zed for the
high performance operation. As fuel economy is reduced while in “Tow/\
Haul” mode,
deactivating when driving without a load is recommended.
• Upshifts occur at higher engine speeds to expand the use of lower g\
ear ranges, enhancing power performance during towing and preventing repeated gear
changes.
• Downshifts occur at a greater accelerator pedal angle to allow the vehic\
le to stay
in a higher gear, reducing repeated gear changes.
• Downshifts occur at a lower accelerator pedal angle to allow the vehicle\
to stay in
a lower gear, enhancing towing ability.
• When the accelerator pedal is wide open, upshift timing is optimized to \
effectively
use the maximum engine power range available.
When Tow/Haul is engaged, the opening angle of the electronically contro\
lled
throttle is wider for any given accelerator pedal position than normal, \
enhancing
acceleration feeling and response.
•
During uphill driving, the gear position is held to prevent repeated ups\
hifting.
• During downhill driving, downshifting to lower gears will occur to effec\
tively use
engine braking.
Refer to the Owner’s Manual for more details on this system before at\
tempting to
use it.
Floor shift type
System ON/OFF
System ON/OFF
Column shift type
ENGINE CONTROL
ENHANCED SHIFT CONTROL
UPHILL/DOWNHILL SHIFT FEATURES
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
Manual TRAILER
BRAKE OUTPUT slider
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40
The Automatic High Beams (AHB) safety system is designed to help you s\
ee
more clearly at night. At speeds above 25 mph, AHB can detect the headli\
ghts of
oncoming vehicles and taillights of preceding vehicles, then automatical\
ly toggles
between high and low beams accordingly.
See Toyota.com/safety-sense for more information.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
Automatic High Beams (AHB)
(1) Push the lever away from you with the headlight switch is in the “\
” or
“AUTO” position.
(2) Press the “
” switch.

The AHB indicator will come on when the headlights are turned on automat\
ically
to indicate that the system is active.
Note: Pull the lever back toward you or press the AHB switch to turn the AHB
system off.
The AHB indicator will turn off and “
” or “” will turn on. To activate the
system again, push the lever its original position or press the “
” switch.
When all of the following conditions are met, the high beams will be aut\
omatically
turned on (after approximately 1 second): • Vehicle speed is above approximately 21 mph (34 km/h).
• The area ahead of the vehicle is dark.
• There are no oncoming or preceding vehicles with headlights or tail\
lights turned on.
• There are few street lights on the road ahead.
If any of the following conditions occur, the high beams will be automat\
ically turned off: • Vehicle speed drops below approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Oncoming or preceding vehicles have headlights or tail lights turne\
d on.
• There are many streetlights on the road ahead.
ACTIVATING THE AHB SYSTEM
CONDITIONS WHERE AHB WILL TURN ON/OFF AUTOMATICALLY
(1) (2)
TOYOTA SAFETY SENSE™SAFETY & EMERGENCY FEATURES
After adjusting tire pressures, or after tires have been rotated or repl\
aced, turn the
ignition switch to “ON” and press and hold the “
SET” button until indicator blinks
three times. Let the vehicle sit for a few minutes to allow initializati\
on to complete.
Refer to the load label on the door jamb or the Owner’s Manual for ti\
re inflation
specifications.
If the tire pressure indicator flashes for 1 minute and then remains on,\
take the
vehicle to your local Toyota dealer.
NOTE: The warning light may come on due to temperature changes or
changes in tire pressure from natural air leakage. If the system has not\
been
initialized recently, setting the tire pressures to factory specificatio\
ns should
turn off the light.
Push up, or squeeze
lock release to lower
NOTE: If a passenger’s seat belt is fully extended, then retracted even slightly,
the Automatic locking retractor (ALR) will prevent it from being re-extended
beyond that point, unless fully retracted again. This feature is used to help
hold child restraint systems securely.
To find more information about seat belts, and how to install a child re\
straint
system, refer to the Owner’s Manual.
Front seats
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41
The Automatic High Beams (AHB) safety system is designed to help you s\
ee
more clearly at night. At speeds above 25 mph, AHB can detect the headli\
ghts of
oncoming vehicles and taillights of preceding vehicles, then automatical\
ly toggles
between high and low beams accordingly.
See Toyota.com/safety-sense for more information.
Refer to the Toyota Owner’s Manual for a list of additional situation\
s in which the
system operation may be limited.
Automatic High Beams (AHB)
(1) Push the lever away from you with the headlight switch is in the “\
” or
“AUTO” position.
(2) Press the “
” switch.

The AHB indicator will come on when the headlights are turned on automat\
ically
to indicate that the system is active.
Note: Pull the lever back toward you or press the AHB switch to turn the AHB
system off.
The AHB indicator will turn off and “
” or “” will turn on. To activate the
system again, push the lever its original position or press the “
” switch.
When all of the following conditions are met, the high beams will be aut\
omatically
turned on (after approximately 1 second): • Vehicle speed is above approximately 21 mph (34 km/h).
• The area ahead of the vehicle is dark.
• There are no oncoming or preceding vehicles with headlights or tail\
lights turned on.
• There are few street lights on the road ahead.
If any of the following conditions occur, the high beams will be automat\
ically turned off: • Vehicle speed drops below approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Oncoming or preceding vehicles have headlights or tail lights turne\
d on.
• There are many streetlights on the road ahead.
Seat belts
SAFETY & EMERGENCY FEATURES
baT
Keep as low on
hips as possible
Take up slack
Too high
System reset initialization
1. Push and hold “
SET” button until
the indicator blinks three times.
2. Wait several minutes to allow initialization to complete.
After adjusting tire pressures, or after tires have been rotated or repl\
aced, turn the
ignition switch to “ON” and press and hold the “
SET” button until indicator blinks
three times. Let the vehicle sit for a few minutes to allow initializati\
on to complete.
Refer to the load label on the door jamb or the Owner’s Manual for ti\
re inflation
specifications.
If the tire pressure indicator flashes for 1 minute and then remains on,\
take the
vehicle to your local Toyota dealer.
NOTE: The warning light may come on due to temperature changes or
changes in tire pressure from natural air leakage. If the system has not been
initialized recently, setting the tire pressures to factory specificatio\
ns should
turn off the light.
Push up, or squeeze
lock release to lower Push up, or squeeze
lock release to lower
NOTE: If a passenger’s seat belt is fully extended, then retracted even slightly,
the Automatic locking retractor (ALR) will prevent it from being re-extended
beyond that point, unless fully retracted again. This feature is used to help
hold child restraint systems securely.
To find more information about seat belts, and how to install a child re\
straint
system, refer to the Owner’s Manual.
Seat belts-Shoulder belt anchor
Tire Pressure Monitoring (warning) System (TPMS)
Front seats
Rear seats (CrewMax models)
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
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44
There are two types of Toyota floor mats: carpeted and all-weather. Each\
vehicle
has model-specific floor mats. Installation is easy.
To keep your floor mat properly positioned, follow these steps:
• Only use Toyota floor mats designed for your specific model.
• Use only one floor mat at a time, using the retaining hooks to keep\
the mat in place.
• Install floor mats right side up. Trailer sway may occur when towing a trailer due to strong crosswinds, u\
neven and/
or winding road conditions or the driver’s steering input.
Trailer Sway Control uses sensors to detect trailer sway and then simult\
aneously
and automatically helps to suppress the swaying motion of the trailer by\
integrating
brake and engine torque control to reduce speed and to help quickly cont\
rol the
swaying motion of the trailer.
TRACTION CONTROL (TRAC)
VSC helps prevent loss of traction during cornering by reducing engine p\
ower, and
Traction Control helps maintain traction on loose gravel and wet, icy, o\
r uneven
surfaces by applying brake force to the spinning wheel(s).
Toyota’s TRAC sensors are activated when one of the drive wheels star\
ts to slip.
TRAC limits engine output and applies the brakes to the spinning wheel. \
This
transfers power to the wheels that still have traction to help keep you \
on track.
SAFETY & EMERGENCY FEATURES
Star Safety System
™
ANTI-LOCK BRAKE SYSTEM (ABS)
Toyota’s ABS sensors detect which wheels are locking up and limits wh\
eel lockup
by “pulsing” each wheel’s brakes independently. Pulsing release\
s brake pressure
repeatedly for fractions of a second. This helps the tires attain the tr\
action that
current road conditions will allow, helping you to stay in directional c\
ontrol.
BRAKE ASSIST (BA)
Brake Assist is designed to detect sudden or “panic” braking, and \
then add braking
pressure to help decrease the vehicle’s stopping distance. When there\
’s only a split
second to react, Brake Assist can add additional brake pressure more qui\
ckly than
just the driver alone can.
ELECTRONIC BRAKE FORCE DISTRIBUTION (EBD)
Toyota’s ABS technology has Electronic Brake-force Distribution (EBD\
) to help
maintain control and balance when braking. EBD responds to sudden stops \
by
redistributing brake force to enhance the braking effectiveness of all f\
our wheels.
Your vehicle comes standard with the Star Safety System
TM, which combines
Anti-lock Braking System (ABS), Brake Assist (BA), Electronic Brake-\
force
Distribution (EBD), Smart Stop Technology (SST), Traction Control (\
TRAC) and
Vehicle Stability Control (VSC).
Refer to the Owner’s Manual for more details and important information on limitations
to these systems.
SMART STOP TECHNOLOGY (SST)
Smart Stop Technology automatically reduces engine power when the accele\
rator
and brake pedals are pressed simultaneously under certain conditions.
SST engages when the accelerator is depressed first and the brakes are a\
pplied
firmly for longer than one-half second at speeds greater than five miles\
per hour.
SST doesn’t engage if the brake pedal is depressed before the acceler\
ator pedal,
allowing vehicles to start on a steep hill and safely accelerate without\
rolling
backward.
VEHICLE STABILITY CONTROL (VSC)
VSC helps prevent loss of traction during cornering by reducing engine p\
ower and
applying brake force to selected wheels.
Toyota’s VSC monitors steering angle and the direction your vehicle i\
s traveling.
When it senses that the front or rear wheels begin to lose traction, VSC\
reduces
engine power and applies braking to selected wheels. This helps restore \
traction
and vehicle control.
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45
Floor mat installation
Trailer Sway Control
There are two types of Toyota floor mats: carpeted and all-weather. Each\
vehicle
has model-specific floor mats. Installation is easy.
To keep your floor mat properly positioned, follow these steps:
• Only use Toyota floor mats designed for your specific model.
• Use only one floor mat at a time, using the retaining hooks to keep\
the mat in place.
• Install floor mats right side up.
Always align the marks
Trailer sway may occur when towing a trailer due to strong crosswinds, u\
neven and/
or winding road conditions or the driver’s steering input.
Trailer Sway Control uses sensors to detect trailer sway and then simult\
aneously
and automatically helps to suppress the swaying motion of the trailer by\
integrating
brake and engine torque control to reduce speed and to help quickly cont\
rol the
swaying motion of the trailer.
TRACTION CONTROL (TRAC)
VSC helps prevent loss of traction during cornering by reducing engine p\
ower, and
Traction Control helps maintain traction on loose gravel and wet, icy, o\
r uneven
surfaces by applying brake force to the spinning wheel(s).
Toyota’s TRAC sensors are activated when one of the drive wheels star\
ts to slip.
TRAC limits engine output and applies the brakes to the spinning wheel. \
This
transfers power to the wheels that still have traction to help keep you \
on track.
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
Star Safety System™
Toyota’s ABS sensors detect which wheels are locking up and limits wh\
eel lockup
by “pulsing” each wheel’s brakes independently. Pulsing release\
s brake pressure
repeatedly for fractions of a second. This helps the tires attain the tr\
action that
current road conditions will allow, helping you to stay in directional c\
ontrol.
Brake Assist is designed to detect sudden or “panic” braking, and \
then add braking
pressure to help decrease the vehicle’s stopping distance. When there\
’s only a split
second to react, Brake Assist can add additional brake pressure more qui\
ckly than
just the driver alone can.
Toyota’s ABS technology has Electronic Brake-force Distribution (EBD\
) to help
maintain control and balance when braking. EBD responds to sudden stops \
by
redistributing brake force to enhance the braking effectiveness of all f\
our wheels.
Your vehicle comes standard with the Star Safety System
TM, which combines
Anti-lock Braking System (ABS), Brake Assist (BA), Electronic Brake-\
force
Distribution (EBD), Smart Stop Technology (SST), Traction Control (\
TRAC) and
Vehicle Stability Control (VSC).
Refer to the Owner’s Manual for more details and important information on limitations
to these systems.
Smart Stop Technology automatically reduces engine power when the accele\
rator
and brake pedals are pressed simultaneously under certain conditions.
SST engages when the accelerator is depressed first and the brakes are a\
pplied
firmly for longer than one-half second at speeds greater than five miles\
per hour.
SST doesn’t engage if the brake pedal is depressed before the acceler\
ator pedal,
allowing vehicles to start on a steep hill and safely accelerate without\
rolling
backward.
VSC helps prevent loss of traction during cornering by reducing engine p\
ower and
applying brake force to selected wheels.
Toyota’s VSC monitors steering angle and the direction your vehicle i\
s traveling.
When it senses that the front or rear wheels begin to lose traction, VSC\
reduces
engine power and applies braking to selected wheels. This helps restore \
traction
and vehicle control.
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