trailer TOYOTA TUNDRA 2021 Owners Manual (in English)

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4-1. Before drivingDriving the vehicle ............. 184
Cargo and luggage............ 192
Vehicle load limits ............. 195
Trailer towing..................... 197
Dinghy towing.................... 216
4-2. Driving procedures Engine (ignition) switch (vehicles without
a smart key system) ........ 217
Engine (ignition) switch (vehicles with a smart
key system) ..................... 219
Automatic transmission ..... 225
Turn signal lever................ 232
Parking brake .................... 233
4-3. Operating the lights and wipers
Headlight switch ................ 234
Automatic High Beam ....... 239
Fog light switch ................. 244
Windshield wipers and washer ............................ 245
4-4. Refueling Opening the fuel tank cap .................................. 248 4-5. Using the driving support
systems
Toyota Safety Sense P ...... 252
PCS (Pre-Collision System) ........................... 260
LDA (Lane Departure Alert) ................................ 272
Dynamic radar cruise control.............................. 280
Cruise control .................... 294
Intuitive parking assist ....... 298
BSM (Blind Spot Monitor)......... 305
Four-wheel drive system ... 315
AUTO LSD system ............ 318
Driving assist systems ....... 320
Trailer brake controller....... 327
4-6. Driving tips Winter driving tips .............. 331
Off-road precautions .......... 335
4Driving

22Pictorial index
■Switches
The illustration represents the instrument panel for the front separated type
seat.Driving position memory switches
*1. . . . . . . . . . . . . . . . . . P. 153
Power window switches
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Door lock switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
Window lock switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Outside rear view mirror switches
*1 . . . . . . . . . . . . . . . . . . P. 167
Personal/interior lights main switch . . . . . . . . . . . . . . . . . . P. 357
Cargo lamp main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 359
Manual headlight leveling dial . . . . . . . . . . . . . . . . . . . . . . . P. 236
Automatic High Beam switch
*1 . . . . . . . . . . . . . . . . . . . . . . P. 239
Power back window switch
*2. . . . . . . . . . . . . . . . . . . . . . . . P. 176
TOW/HAUL switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Trailer brake controller
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 327
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781-1. For safe use
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhale.
WARNING
Exhaust gases include harmful carbon monoxide (CO), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases to enter the vehicle a nd may lead
to an accident caused by light-headedness, or may lead to death or a serious
health hazard.
■ Important points while driving
● Double Cab and CrewMax models: Keep the back window closed.
● Double Cab and CrewMax models: If you smell exhaust gases in th e vehi-
cle even when the back window is closed, open the windows and h ave the
vehicle inspected at your Toyota dealer as soon as possible.
● Toyota does not recommend occupying the rear cargo area when it is fitted
with a slide-in camper, camper shell or other type cover while the engine is
running. This caution applies to both driving and stopped or pa rked situa-
tions with the engine running. Particular care should be taken to prevent
exhaust gases from entering camper bodies, trailers or other enclosures
on or around your vehicle. If exhaust fumes are detected, open all win-
dows and thoroughly ventilate the area.
■ When parking
● If the vehicle is in a poorly ventilated area or a closed area, such as a
garage, stop the engine.
● Do not leave the vehicle with the engine on for a long time.
If such a situation cannot be avoided, park the vehicle in an o pen space
and ensure that exhaust fumes do not enter the vehicle interior .
● Do not leave the engine running in an area with snow build-up, or where it
is snowing. If snowbanks build up around the vehicle while the engine is
running, exhaust gases may collect and enter the vehicle.
■ Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or
crack caused by corrosion, damage to a joint or abnormal exhaust noise, be
sure to have the vehicle inspected and repaired by your Toyota dealer.

1032. Instrument cluster
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Instrument cluster
*6
Cruise control “SET”
indicator (P. 289, 294)
*3, 4, 9
BSM outside rear view
mirror indicator
(P. 305)
*6, 9
(Green)
LDA indicator ( P. 276)
*1
“TRAC OFF” indicator
(P. 321)
Front fog light indicator
( P. 244)
*9
“RCTA” indicator
(P. 305)
*1, 5
“AIR BAG ON” and
“AIR BAG OFF”
indicators ( P. 53) Security indicator
(
P. 85, 95)
*1“AUTO LSD” indicator
(P. 318, 321)
*6, 9
Dynamic radar cruise
control indicator
(P. 280)
*1, 8, 9
PCS warning light
(P. 264)
*1, 2Slip indicator
( P. 321)
(4WD models)
“4HI” indicator ( P. 315)
*1VSC off indicator
(P. 318, 321)
(4WD models)
“4LO” indicator ( P. 315)
“TOW HAUL” indicator
( P. 228)
*6
(Green)
Trailer connection
indicator ( P. 327)
*9“BSM” indicator
(P. 305)*6, 7
Low outside temperature
indicator

1102. Instrument cluster
Multi-infor mation display
The multi-information display presents the driver with a variety of vehi-
cle data.
● Menu icons
Displays the following informa-
tion when an icon is selected.
Some of the information may be
displayed automatically
depending on the situation.
Drive information
Select to display various drive data. ( P. 1 1 1 )
Navigation system-linked display*
Select to display the following navigation system-linked information.
• Route guidance
• Compass display (north-up display/heading-up display)
Audio system-linked display
Select to enable selection of an audio source or track on the m eter
using the meter control switches.
Vehicle information
Select to display the operational status of the following syste ms:
• LDA (Lane Departure Alert)
* ( P. 272)
• Dynamic radar cruise control
* ( P. 280)
• Tire inflation pressure ( P. 427)
• Trailer brake controller
* ( P. 327)
Display contents

1132. Instrument cluster
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Instrument cluster
●BSM (Blind Spot Monitor)*1 (→P. 567)
Select to enable/disable the Blind Spot Monitor function.
● RCTA (Rear Cross Traffic Alert)
*1 (→P. 567)
Select to enable/disable the Rear Cross Traffic Alert function.
● Vehicle Settings
• BSM Brightness*1 (P. 567)
Select to set up the BSM (Blind Spot Monitor) outside rear view mirror
indicators brightness.
•RCTA volume
*1 ( P. 567)
Select to set up the RCTA (Rear Cross Traffic Alert) warning buzzer vol-
ume.
• TBC Trailer Type
*1 ( P. 568)
Select to set up the trailer brake type.
• Maintenance reset
*2 ( P. 407)
Select to reset the message after the required maintenance is p er-
formed.

1693-4. Adjusting the steering wheel and mirrors
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Operation of each component
From inside (if equipped)
Press the switch to fold the mir-
rors.
Press it again to extend them to
the original position.
The mirrors can be manually slid
outward to improve visibility
around wide trailers.
When the mirror select switch is in the L or R position, the ou tside rear
view mirrors will automatically a ngle downwards when the vehicl e is
reversing in order to give a better view of the ground.
To disable this function, move the mirror select switch to the neutral
position (between L and R).
■Adjusting the mirror angle when the vehicle is reversing
With the shift lever in R, adjust the mirror angle at a desired posi-
tion. The adjusted angle will be memorized and the mirror will auto-
matically tilt to the memorized angle whenever the shift lever is
shifted to R from next time.
The memorized downward tilt position of the mirror is linked to the nor-
mal position (angle adjusted with the shift lever in other than R). There-
fore, if the normal position is changed after adjustment, the t ilt position
will also change.
When the normal position is changed, readjust the angle in reve rsing.
Extending the mirrors (if equipped)
Linked mirror function when reversing (if equipped)

1703-4. Adjusting the steering wheel and mirrors
■Recommended mirror angle when to wing a trailer (vehicles with extend-
ing mirrors)
■ Mirror operating conditions (power-adjustable type)
The engine switch is in ACC or ON.
■ When the mirrors are fogged up ( vehicles with outside rear view mirror
defoggers)
Turn on the mirror defoggers to defog the mirrors. ( P. 342, 349)
■ Automatic adjustment of the mirr or angle (vehicles with driving position
memory)
A desired mirror face angle can be entered to memory and recall ed automati-
cally by the driving position memory. ( P. 152)
■ Auto anti-glare function (if equipped)
When the anti-glare inside rear view mirror is set to automatic mode, the out-
side rear view mirrors will activate in conjunction with the an ti-glare inside
rear view mirror to reduce reflected light. ( P. 165)
Power adjust the upper part of the mir-
ror until an appropriate view is obtained.
It is recommended that the outer 2/3 of
the upper mirror be filled with images
other than the vehicle and trailer.
Manually adjust the lower part of the
mirror until an appropriate view of the
towed object is obtained. It is recom-
mended that the outer 2/3 of the lower
mirror be filled with images other than
the trailer.
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183
4Driving
4-1. Before drivingDriving the vehicle ............. 184
Cargo and luggage ........... 192
Vehicle load limits ............. 195
Trailer towing..................... 197
Dinghy towing ................... 216
4-2. Driving procedures Engine (ignition) switch(vehicles without
a smart key system) ........ 217
Engine (ignition) switch (vehicles with
a smart key system) ........ 219
Automatic transmission ..... 225
Turn signal lever................ 232
Parking brake .................... 233
4-3. Operating the lights and wipers
Headlight switch ................ 234
Automatic High Beam ....... 239
Fog light switch ................. 244
Windshield wipers and washer ............................ 245
4-4. Refueling Opening the fuel tank cap .................................. 248 4-5. Using the driving support
systems
Toyota Safety Sense P ..... 252
PCS (Pre-Collision System)........................... 260
LDA (Lane Departure Alert) ............................... 272
Dynamic radar cruise control ............................. 280
Cruise control .................... 294
Intuitive parking assist....... 298
BSM (Blind Spot Monitor) ........ 305
Four-wheel drive system ... 315
AUTO LSD system............ 318
Driving assist systems ...... 320
Trailer brake controller ...... 327
4-6. Driving tips Winter driving tips ............. 331
Off-road precautions ......... 335

1864-1. Before driving
■Breaking in your new Toyota
To extend the life of the vehicle, observing the following prec autions is recom-
mended:
● For the first 200 miles (300 km):
Avoid sudden stops.
● For the first 500 miles (800 km):
Do not tow a trailer.
● For the first 1000 miles (1600 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in low gears.
• Do not drive at a constant speed for extended periods.
■ Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake
system needs bedding-down of the brake shoes periodically or wh enever the
parking brake shoes and/or drum are replaced. Have your Toyota dealer per-
form the bedding down operation.
■ Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability
of the correct fuel. ( P. 551)
■ When turning off the engine
The emission system operating sounds may continue for a short time after
the engine is turned off. This is not a malfunction, and helps to ensure optimal
performance of the emission system.