stop start TOYOTA TUNDRA 2021 (in English) Owner's Manual

3234-5. Using the driving support systems
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Driving
■Turning off TRAC, VSC and Trailer Sway Control systems
2WD models and 2WD mode on 4WD models
To turn the TRAC, VSC and Trailer Sway Control systems off, sto p the vehi-
cle completely, and then press and hold
for more than 3 seconds
while the AUTO LSD system is activated. ( P. 318)
4H mode on 4WD models
To turn the TRAC, VSC and Trailer Sway Control systems off, press and
hold
for more than 3 seconds while the vehicle is stopped.
The VSC off and “TRAC OFF” indicator light will come on.
Press
again to turn the system back on.
■ When the VSC or TRAC system is turned off by pressing the VSC o ff
switch
On vehicles with pre-collision system, pre-collision brake assi st and pre-colli-
sion braking will also be disabled. The PCS warning light will come on and
the message will be shown on the multi-information display. ( P. 500)
■ When the “TRAC OFF” indicator light comes on even if VSC off sw itch
has not been pressed.
TRAC cannot be operated. Contact your Toyota dealer.
■ Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assi st control will
operate:
● The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The vehicle is stopped
● The accelerator pedal is not depressed
● The parking brake is not engaged
■ Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the follo wing situations:
The shift lever is shifted to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● 2 seconds at maximum elapsed after the brake pedal is released

3244-5. Using the driving support systems
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC,
Trailer Sway Control and hill-start assist control systems
● A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the engine is started or just aft er the vehicle
begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
● Any of the following conditions may occur when the above system s are
operating. None of these indicates that a malfunction has occur red.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a s top.
• The brake pedal may pulsate slightly after the ABS is activate d.
• The brake pedal may move down slightly after the ABS is activa ted.
■ Automatic reactivation of TRAC, Trailer Sway Control and VSC sy stems
After turning the TRAC, Trailer Sway Control and VSC systems of f, the sys-
tems will be automatically re-enabled in the following situations:
● When the engine switch is turned off
● If only the TRAC system is turned off, the TRAC will turn on wh en vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.
■ If the brake system overheats
TRAC will cease operation, and the slip indicator will change f rom flashing to
being on continuously to alert the driver. Stop the vehicle in a safe place.
(There is no problem with continuing normal driving.)
■ Shifting to “4L”
VSC and Trailer Sway Control are automatically turned off.

3254-5. Using the driving support systems
4
Driving
WARNING
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded (suc h as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or s lick roads.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, espe cially in the
following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRAC/VSC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and p ower may be
lost.
■ Hill-start assist control does not operate effectively when
● Do not overly rely on hill-start assist control. Hill-start ass ist control may
not operate effectively on steep inclines and roads covered wit h ice.
● Unlike the parking brake, hill-st art assist control is not intended to hold the
vehicle stationary for an extended period of time. Do not attempt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
■ When the TRAC/VSC/Trailer Sway Control are activated
The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.

3535-1. Using the air conditioning system
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Interior features
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the out side air mode.
● During use, various odors from inside and outside the vehicle m ay enter into
and accumulate in the air conditioning system. This may then ca use odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to o utside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short peri od of time
immediately after the air conditioning system is started in aut omatic
mode.
■ Air conditioning filter
P. 448
WARNING
■To prevent the windshield from fogging up
● Do not use
during cool air operation in extremely humid weather.
The difference between the temperature of the outside air and t hat of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.
■ To prevent burns (vehicles with rear view mirror defoggers and wind-
shield wiper de-icer)
● Do not touch the rear view mirror surfaces when the outside rear view mir-
ror defoggers are on.
● Do not touch the glass at lower part of the windshield or to th e side of the
front pillars, when the windshield wiper de-icer is on.
NOTICE
■ To prevent battery discharge
Do not leave the air conditioning system on longer than necessa ry when the
engine is stopped.
● Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers to
defog.

3895-4. Using the other interior features
5
Interior features
Press a programmed HomeLink® button to operate a garage
door.
Within 1 minute of pressing the HomeLink
® button, after the
garage door operation has stopped, press the “Learn” or “Smart”
button on the garage door opener motor. Within 5 seconds of the
establishment of 2-way commu nication with the garage door
opener, both garage door operation indicators in the vehicle wi ll
flash rapidly green and the light on the garage door opener mot or
will blink twice, indicating that 2- way communication is enabled.
■Reprogramming a single HomeLink® button
When the following procedure is performed, buttons which alread y
have devices registered to them can be overwritten:
With one hand, press and hold the desired HomeLink
® button.
When the HomeLink
® indicator starts flas hing orange, release
the HomeLink® button and perform “Programming the Home-
Link®” (it takes 20 seconds for the HomeLink® indicator to
start flashing).
Press the appropriate HomeLink
® button. The HomeLink® indicator
light should turn on.
Operating the HomeLink®
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473
7When trouble arises
7-1. Essential informationEmergency flashers .......... 474
If your vehicle has to be stopped in
an emergency ................. 475
If the vehicle is trapped in rising water .................. 477 7-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 478
If you think something is wrong .............................. 483
Fuel pump shut off system ............................ 484
If a warning light turns on or a warning buzzer
sounds ............................ 485
If a warning message is displayed......................... 493
If you have a flat tire.......... 506
If the engine will not start ................................. 521
If the electronic key does not operate
properly (vehicles with
a smart key system) ........ 523
If the vehicle battery is discharged ...................... 525
If your vehicle overheats ... 529
If the vehicle becomes stuck ............................... 532

4847-2. Steps to take in an emergency
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Turn the engine switch to ACC or OFF.
Restart the engine.
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops supply of fuel to the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
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4957-2. Steps to take in an emergency
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When trouble arises
Indicates that the automatic transmission fluid
temperature is to highA buzzer also sounds.
 Immediately stop the vehicle in a safe
place, shift the shift lever to P and wait until
the light goes off.
If the light goes off, you may start the vehi-
cle again. If the light does not go off, con-
tact your Toyota dealer.
Indicates that the parking brake is still engaged
If the vehicle reaches a speed of 3 mph
(5 km/h), flashes and a buzzer
sounds to indicate that the parking brake is
still engaged.
 Release the parking brake.
Indicates that the washer fluid level is low
Add washer fluid.
(If equipped)
Indicates that intuitive parking assist is dirty or
covered with ice
Clean the sensor.
(If equipped)
Indicates that the Blind Spot Monitor sensors or
the surrounding area on the bumper is dirty or
covered with ice
A buzzer also sounds.
 Clean the sensor and its surrounding area
on the bumper.
Standard fuel tank
Indicates remaining fuel is approximately 4.0 gal.
(15.0 L, 3.3 Imp.gal.) or less
Large fuel tank
Indicates remaining fuel is approximately 3.8 gal.
(14.4 L, 3.2 lmp.gal.) or less A buzzer also sounds.
 Refuel the vehicle.
Warning messageDetails/Actions
High Transmission
Fluid Temp
See Owner’s Manual
Release
Parking Brake
(U.S.A) (Canada)
Windshield
Washer Fluid Low
Clean Parking Assist Sensor
Blind Spot Monitor
Unavailable
Fuel Low

5247-2. Steps to take in an emergency
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 451)
■ Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake ped al and press
the engine switch.
The engine does not start and modes will be changed each time t he switch is
pressed. ( P. 220)

5307-2. Steps to take in an emergency
The coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine to check that the radiator cooling fan operate s and
to check for coolant leaks from the radiator or hoses.
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle ins pected at the nearest Toyota dealer.
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