TOYOTA TUNDRA 2023 Owners Manual

3214-5. Using the driving support systems
4
Driving
WARNING
■When using Crawl Control
Do not rely solely on Crawl Control. This function does not ext end the vehi-
cle’s performance limitations. Always check the terrain thoroughly and drive
safely.
■ These conditions may cause the system may not operate correctly
When driving on the following surfaces, the system may not be able to
maintain a fixed low speed, which may result in an accident:
● Extremely steep inclines
● Extremely uneven surfaces
● Snow-covered roads, or other slippery surfaces

3224-5. Using the driving support systems
Clutch star t cancel switch
Never use the switch for normal engine starting. Be sure to fol low the
starting procedure. ( P. 2 0 2 )
Press the “CLUTCH START CAN-
CEL” switch to cancel the clutch
start system when the engine
switch is turned to the “ON” posi-
tion.
The indicator comes on when the
clutch start system is canceled.
The clutch start cancel switch is
automatically turned off when the
engine switch is turned off.
■ Clutch start system
The system is designed to keep the starter motor from operating if the clutch
pedal is not depressed all the way down.
: If equipped
The switch allows the vehicle t o be driven out of difficult situa-
tions by cranking the engine with the clutch engaged.

3234-5. Using the driving support systems
4
Driving
Driving assist systems
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road surface
◆Multi Terrain ABS (Anti-lock Brake System) (if equipped)
Helps to prevent wheel lock when the brakes are applied suddenl y,
or if the brakes are applied while driving on a slippery road s urface,
or in off-road conditions (such as rough roads, sand and mud)
◆Brake assist
Generates an increased level of braking force after the brake p edal
is depressed when the system de tects a panic stop situation
◆VSC (Vehicle Stability)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆Trailer Sway Control (if equipped)
Helps the driver to control trailer sway by selectively applying brake
pressure for individual wheels and reducing engine torque when
trailer sway is detected.
Trailer Sway Control is part of the VSC system and will not ope rate if
VSC system is turned off or experiences a malfunction.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicl e or accelerating on slippery roads
To help enhance driving safety and performance, the following
systems operate autom atically in response to various driving
situations. Be aware, however, that these systems are supple-
mentary and should not be relied upon too heavily when operat-
ing the vehicle.

3244-5. Using the driving support systems
◆Hill-start assist control (if equipped)
Helps to prevent the vehicle from rolling backward when startin g on
an incline or slippery slope
The slip indicator light will flash
while the TRAC/VSC/Trailer Sway
Control/hill-star t assist control
*
systems are operating.
*: If equipped with Multi-terrain Select/
Crawl Control.
If the vehicle gets stuck in fresh snow or mud, TRAC/VSC/Traile r
Sway Control systems may reduce power from the engine to the
wheels. You may need to turn the system off to enable you to rock the
vehicle in order to free it.
■Turning off TRAC (turn on the AUTO LSD system)
 P. 3 0 7
■Turning off TRAC, VSC a nd Trailer Sway Control
Press and hold the VSC off
switch for more than 3 seconds
while the vehicle is stopped to
turn off TRAC, VSC and Trailer
Sway Control.
The VSC off and “TRAC OFF”
indicators will come on.
Press the switch again to turn
the system back on.
When the TRAC/VSC/Trailer Sway C ontrol/hill-start assist control
systems are operating
Disabling the TRAC/VSC/Traile r Sway Control systems (2WD
models and 2WD mode on 4WD models)

3254-5. Using the driving support systems
4
Driving
If the vehicle gets stuck in fresh snow or mud, TRAC/VSC/Trailer
Sway Control systems may reduce power from the engine to the
wheels. You may need to turn the system off to enable you to rock the
vehicle in order to free it.
■Turning off TRAC
Quickly press and release the
VSC off switch to turn off
TRAC.
The “TRAC OFF” indicator will
come on.
Press the switch again to turn
the system back on.
■
Turning off TRAC, VSC a nd Trailer Sway Control
Press and hold the VSC off
switch for more than 3 seconds
while the vehicle is stopped to
turn off TRAC, VSC and Trailer
Sway Control.
The VSC off and “TRAC OFF”
indicators will come on.
Press the switch again to turn
the system back on.
■ When the “TRAC OFF” indicator light comes on even if the VSC of f
switch has not been pressed
TRAC and hill-start assist control cannot be operated. Contact your Toyota
dealer.
Disabling the TRAC/VSC/Traile r Sway Control systems (4WD
mode on 4WD models)

3264-5. Using the driving support systems
■Sounds and vibrations caused by th e ABS, Multi Terrain ABS, brake
assist, VSC, TRAC and Trailer Sway 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 after the vehicle comes to a stop.
• 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, VSC and Trailer Sway Control sy stems
after turning off the engine
Turning off the engine after turning off the TRAC, VSC and Trailer Sway Con-
trol systems will automatically reactivate them.
■ Automatic reactivation of TRAC system (AUTO LSD mode)
With AUTO LSD mode, VSC off and “A UTO LSD” indicator lights turn on.
The VSC and TRAC systems will turn on when the vehicle speed in creases.
■ Automatic reactivation of TRAC, V SC and Trailer Sway Control systems
If the TRAC, VSC and Trailer Sway Control systems are turned off, automatic
reactivation will not occur when vehicle speed increases
■ If the brake system overheats
TRAC will cease operation and a buzzer will sound to alert the driver. Stop
the vehicle in a safe place. (There is no problem with continuing normal driv-
ing.)
■ 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 . 501)
■ 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.

3274-5. Using the driving support systems
4
Driving
■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 moved to P or N.
● The accelerator pedal is depressed.
● The parking brake is engaged.
● Approximately 2 seconds elapse after the brake pedal is release d.
WARNING
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded (such 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 or Multi Terrain ABS is operatin g may
exceed that of normal conditions
The ABS and Multi Terrain ABS are not designed to shorten the v ehicle’s
stopping distance. Always maintain a safe distance from the vehicle in front
of you, especially 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 may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC 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 assist 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 VSC and 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.

3284-5. Using the driving support systems
WARNING
■When the TRAC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed appropriate to the r oad condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC/Trailer Sway Control systems off unless
necessary.
■ Replacing tires
Make sure that all tires are of the specified size, brand, trea d pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, Multi Terrain ABS, TRAC, VSC and Trailer Sway Control systems
will not function correctly if different tires are installed on the vehicle.
Contact your Toyota dealer for further information when replaci ng tires or
wheels.
■ Handling of tires and the suspension
Using tires with any kind of problem or modifying the suspensio n will affect
the driving assist systems, and may cause a system to malfunction.
■ Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situ-
ations. Depending on many factors such as the conditions of the vehicle,
trailer, road surface, and driving environment, the Trailer Swa y Control sys-
tem may not be effective. Refer to your trailer owner’s manual for informa-
tion on how to tow your trailer properly.
■ If trailer sway occurs
Observe the following precautions.
Failure to do so may cause death or serious injury.
● Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering w heel.
● Begin releasing the accelerator pedal immediately but very grad ually to
reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize. ( P. 198)

3294-6. Driving tips
4
Driving
Winter driving tips
●Use fluids that are appropriate t o the prevailing outside tempera-
tures. • Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspec t the condition of the battery.
● Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
Perform the following according to the driving conditions:
● Do not try to forcibly open a window or move a wiper that is fr ozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to p revent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Check for and remove any excess ic e or snow that may have accu-
mulated on the exterior lights, vehicle’s roof, chassis, around the
tires or on the brakes.
● Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Accelerate the vehicle slowly, keep a safe distance between you and
the vehicle ahead, and drive at a reduced speed suitable to roa d con-
ditions.
Carry out the necessary preparations and inspections before
driving the vehicle in winter. Always drive the vehicle in a ma n-
ner appropriate to the prevailing weather conditions.
Preparation for winter
Before driving the vehicle
When driving the vehicle

3304-6. Driving tips
●Park the vehicle and move the shift lever to P (automatic trans mis-
sion) or 1 or R (manual transmiss ion) without setting the parking
brake. The parking brake may freeze up, preventing it from bein g
released. If the vehicle is park ed without setting the parking brake,
make sure to block the wheels.
Failure to do so may be dangerou s because it may cause the vehi-
cle to move unexpectedly, pos sibly leading to an accident.
● On vehicles with an automatic transmission, if the vehicle is p arked
without setting the parking brake, confirm that the shift lever cannot
be moved out of P.
The shift lever will be locked if it is attempted to be shifted from P to
any other position without depressing the brake pedal. If the s hift
lever can be shifted from P, there may be a problem with the sh ift
lock system. Have the vehicle in spected by your Toyota dealer
immediately.
Use the correct tire chain size when mount ing the tire chains.
Chain size is regulate d for each tire size.
Side chain
(0.2 in. [5 mm] in diameter)
Cross chain
(0.25 in. [6.3 mm] in diameter)
Regulations regarding the use of tire chains vary depending on loca-
tion and type of road. Always chec k local regulations before installing
chains.
When parking the vehicle
Selecting tire chains
1
2
Regulations on the use of tire chains