TOYOTA TUNDRA 2021 (in English) Service Manual

39
To change the vehicle-to-vehicle
distance

Push the “
” button to
cycle through the settings,
which will change progressively.
This mode employs a radar sensor to detect the presence of a preceding v\
ehicle
up to approximately 328 ft (100 m) ahead, determines the current vehic\
le-to-vehicle
following distance and operates to maintain a preset following distance \
from the
vehicle ahead. These distances vary based on vehicle speed.
(1) Constant speed cruising when there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-\
to-
vehicle distance can also be set by operating the vehicle-to-vehicle dis\
tance

control.
(2) Deceleration cruising and follow-up cruising when a preceding vehicle

driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automaticall\
y
decelerates your vehicle. When a greater reduction in vehicle speed is
necessary, the system applies the brakes (the brake lights will come on\
at this
time). The system will respond to changes in the speed of the vehicle a\
head
in order to maintain the vehicle-to-vehicle distance set by the driver. \
A warning
tone warns you when the system cannot decelerate sufficiently to prevent\
your
vehicle from closing in on the vehicle ahead.
Note: Vehicle-to-vehicle distance will close in when traveling on long downhill
slopes.
SETTING CONSTANT SPEED (CRUISE) CONTROL
SWITCHING TO CONSTANT SPEED (CRUISE) CONTROL MODE
Note: When your vehicle is too close to a vehicle ahead, and sufficient automatic
deceleration via the cruise control is not possible, the display will flash and the
buzzer will sound to alert the driver. An example of this would be if another driver
cuts in front of you while you are following a vehicle. Depress the brake pedal to
ensure an appropriate vehicle-to-vehicle distance.
If you are already using DRCC “,” push button again to turn the system off
first, then push and hold button for at least 1.5 seconds to switch.
Note: When the engine is turned off, it will automatically default to DRCC.
(3) Acceleration when there are no longer any preceding vehicles driving
slower than the set speed The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
1.5 seconds
DRCC ADJUSTING DISTANCE (CONTINUED)
To adjust speed or cancel, see steps (2) and (3) of ADJUSTING SET SPEED on
page 37.
Refer to the Toyota Owner’s Manual for additional information on DRCC\
operation,
settings adjustments, limitations, and precautions before attempting to \
use it.
(1)
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
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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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42
TOOL LOCATION
REMOVING THE SPARE TIRE
Rear door child safety locks
(1) Assemble the jack handle.
(2) Insert the jack handle end into the lowering screw.
(3) Turn the jack handle counterclockwise.
Refer to the Owner’s Manual for tire changing and jack positioning pr\
ocedures.
Double cab models
(under the right rear seat
without storage box)
(1)
CrewMax & double cab models
SAFETY & EMERGENCY FEATURES
Safety Connect®
Safety Connect is a subscription-based telematics service that uses Glob\
al
Positioning System (GPS) data and embedded cellular technology to prov\
ide safety
and security features to subscribers. Safety Connect is staffed with liv\
e agents at
the Toyota response center, which operates 24 hours per day, 7 days per \
week.
Services for subscribers include:
•
Automatic collision notification
• Stolen vehicle locator
• Emergency assistance (“SOS” button)
• Enhanced roadside assistance
For additional information, refer to the “Owner’s Manual” or vi\
sit www.Toyota.com/
connected-services.
Microphone
LED light indicators
(Green is Active)
“SOS” button
Unlock
Lock
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43
Spare tire & tools
TOOL LOCATION
REMOVING THE SPARE TIRE
(1) Assemble the jack handle.
(2) Insert the jack handle end into the lowering screw.
(3) Turn the jack handle counterclockwise.
Refer to the Owner’s Manual for tire changing and jack positioning pr\
ocedures.
Double cab models
(under the right rear seat with storage box)
Tool bag
Jack
Tool bag
Jack
Double cab models
(under the right rear seat
without storage box)CrewMax models
(under the right rear seat)
Tool bag
Jack
(1)
(2) (3)
OVERVIEW
FEATURES & OPERATIONS
TOYOTA SAFETY SENSE
SAFETY & EMERGENCY FEATURES
Safety Connect®
Safety Connect is a subscription-based telematics service that uses Glob\
al
Positioning System (GPS) data and embedded cellular technology to prov\
ide safety
and security features to subscribers. Safety Connect is staffed with liv\
e agents at
the Toyota response center, which operates 24 hours per day, 7 days per \
week.
Services for subscribers include:
• Automatic collision notification
• Stolen vehicle locator
• Emergency assistance (“SOS” button)
• Enhanced roadside assistance
For additional information, refer to the “Owner’s Manual” or vi\
sit www.Toyota.com/
connected-services.
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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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46
BLUETOOTH® DEVICE PAIRING
SECTION
Do not attempt the Bluetooth® Pairing process while driving. To
begin the Bluetooth® Pairing process, press the HOME button on the faceplate of
your multimedia system.
Pairing your phone is the first step in connecting with your Toyota. This pairi\
ng
process is quick and easy. All you have to do is setup the phone and multimedia\

system to form a connection.
1
iPhone bluetooth Menu
1 Some Android devices may have slightly different SETTINGS screen layout\
depending on manufacturer of device and Android OS version.
STEP 1
STEP 2
STEP 4
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47
BLUETOOTH® DEVICE PAIRING
SECTION
To begin the Bluetooth® Pairing process, press the HOME button on the faceplate of
your multimedia system.
Bluetooth® Pairing for your phone
Pairing your phone is the first step in connecting with your Toyota. This pairi\
ng
process is quick and easy. All you have to do is setup the phone and multimedia\

system to form a connection.
1

Select "Bluetooth," then select
"Add New Device" on display
screen.
Ensure Bluetooth is turned on for
your device.
Select "Device Name."
iPhone bluetooth MenuAndroid bluetooth Menu
1
Some Android devices may have slightly different SETTINGS screen layout\
depending on manufacturer of device and Android OS version.
Check the display on your smart
phone. Does the PIN XXXX
match the PIN displayed? If it
does, select "Pair."
Press [MENU] on the audio system faceplate, then select "Setup" on display
screen.
Audio / Audio Plus / Premium Audio
STEP 1
STEP 2
STEP 4
STEP 3
STEP 5
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48
BLUETOOTH® DEVICE PAIRING
"Connecting" displays while
device is forming the connection
to your multimedia system.Enable Notifications (text
message). While pairing your
phone, a message will be
displayed:
"You may need to allow
message access on your
phone."
Note: You may also select
"Skip" on display screen to skip
enabling notifications. If skipped,
proceed to
Step 8.
Turn on "Show Notifications" for
iPhone or "ON" for Android. A confirmation will appear once
your phone has been paired and
connected.
iPhoneAndroid
Bluetooth® Pairing for
your phone (cont.)
STEP 6
STEP 8
STEP 7
STEP 9
NOTES
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