tires TOYOTA TUNDRA 2023 Owners Manual

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6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 402
Cleaning and protecting the vehicle interior ........... 406
6-2. Maintenance Maintenance requirements ................... 409
General maintenance ........ 411
Emission inspection and maintenance (I/M)
programs ......................... 414
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ..................... 415
Hood.................................. 417
Engine compartment ......... 419
Tires .................................. 431
Tire inflation pressure........ 442
Wheels .............................. 445
Air conditioning filter .......... 448
Wireless remote control/ electronic key battery ...... 451
Checking and replacing fuses ............................... 455
Light bulbs ......................... 458 7-1. Essential information
Emergency flashers ........... 472
If your vehicle has to be stopped in
an emergency.................. 473
If the vehicle is submerged or water on
the road is rising .............. 475
7-2. Steps to take in an emergency
If your vehicle needs to be towed .......................... 476
If you think something is wrong ......... 480
Fuel pump shut off system ............................. 481
If a warning light turns on or a warning buzzer
sounds ............................. 482
If a warning message is displayed ......................... 489
If you have a flat tire .......... 511
If the engine will not start ................................. 526
If the electronic key does not operate properly
(vehicles with a smart
key system) .................... 528
If the vehicle battery is discharged ....................... 530
If your vehicle overheats.... 534
If the vehicle becomes stuck ................................ 536
6Maintenance and care7When trouble arises

17Pictorial index
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 233
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 544
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 431
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 551
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 329
Checking/rotation/tire pressure warning system
*3 . . . . . . . . . P. 431
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 511
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 417
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 545
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 534
Camera
*2
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Fog lights
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 229
Front turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Parking lights (bulb type)
*3/
daytime running lig hts (bulb type)
*3. . . . . . . . . . . . . . . . . . P. 220
Parking lights (LED type)
*3/
daytime running lights (LED type)
*3 . . . . . . . . . . . . . . . . . . P. 220
Rear turn signal/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 218
Stop/tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Hill-start assist control
*3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 3 24
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
Back-up lights
Shifting the shift lever to R . . . . . . . . . . . . . . . . . . . . . . . . P. 211, 216
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 220
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Light bulbs of the exter ior lights for driving
(Replacing method: P. 458, Watts: P. 553)
*1: Vehicles with a smart key system
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”
*3: If equipped
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1704-1. Before driving
■When starting off on an uphill (v ehicles with the hill-start assist control
system)
The hill-start assist control will activate. ( P. 324)
■ Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the win-
dows may become fogged-up, and the road will be slippery.
● Drive carefully when it starts to rain, because the road surface will be espe-
cially slippery.
● Refrain from high speeds when driving on an expressway in the r ain,
because there may be a layer of water between the tires and the road sur-
face, preventing the steering and brakes from operating properl y.
■ Engine speed while driving (vehic les with an automatic transmission)
In the following conditions, the engine speed may become high w hile driving.
This is due to automatic up-shifting control or down-shifting implementation to
meet driving conditions. It does not indicate sudden acceleration.
● The vehicle is judged to be driving uphill or downhill
● When the accelerator pedal is released
● When the brake pedal is depressed while power mode is selected
■ Restraining the engine out put (Brake Override System)
● When the accelerator and brake pedals are depressed at the same time, the
engine output may be restrained.
● A warning message is displayed on the multi-information display while the
system is operating. ( P. 493)
■ Restraining sudden start (Drive-Start Control: vehicles with an automatic
transmission)
● When the following unusual operation is performed, the engine o utput may
be restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to
R (D includes S) with the accelerator pedal depressed, a warnin g mes-
sage appears on the multi-information display.
• When the accelerator pedal is depressed too much while the veh icle is in
reverse.
● While Drive-Start Control is being activated, your vehicle may have trouble
escaping from the mud or fresh snow. In such case, perform the following
actions to cancel Drive-Start Control so that the vehicle may b ecome able to
escape from the mud or fresh snow.
• Deactivate TRAC ( P. 324)
• When the AUTO LSD system is turned on.
(P. 307)
• 4WD models: The four-wheel drive control switch is in “4L” pos ition.
(P. 303)

1734-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When driving the vehicle
● Do not drive in excess of the speed limit. Even if the legal sp eed limit per-
mits it, do not drive over 85 mph (140 km/h) unless your vehicl e has high-
speed capability tires. Driving over 85 mph (140 km/h) may resu lt in tire
failure, loss of control and possible injury. Be sure to consult a tire dealer
to determine whether the tires on your vehicle are high-speed capability
tires or not before driving at such speeds.
■ When driving on slippery road surfaces
● Sudden braking, acceleration and steering may cause tire slippa ge and
reduce your ability to control the vehicle.
● Sudden acceleration, engine braking due to shifting, or changes in engine
speed could cause the vehicle to skid.
● After driving through a puddle, lightly depress the brake pedal to make
sure that the brakes are functioning properly. Wet brake pads m ay prevent
the brakes from functioning properly. If the brakes on only one side are wet
and not functioning properly, steering control may be affected.
■ When shifting the shift lever
● On vehicles with an automatic transmission, do not let the vehicle roll
backward while the shift lever is in a driving position, or rol l forward while
the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake an d steering
performance, resulting in an accident or damage to the vehicle.
● On vehicles with an automatic transmission, do not shift the sh ift lever to P
while the vehicle is moving.
Doing so can damage the transmission and may result in a loss o f vehicle
control.
● Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Do not shift the shift lever to a driving position while the ve hicle is moving
backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Moving the shift lever to N while the vehicle is moving will di sengage the
engine from the transmission. Engine braking is not available w hen N is
selected.
● On vehicles with an automatic transmission, be careful not to s hift the shift
lever with the accelerator pedal depressed. Shifting the shift lever to a
gear other than P or N may lead to moving unexpectedly of the vehicle
that may cause an accident.

1754-1. Before driving
4
Driving
WARNING
●Do not leave a door or window open if the curved glass is coated with a
metallized film such as a silver-colored one. Reflected sunligh t may cause
the glass to act as a lens, causing a fire.
● On vehicles with an automatic transmission, always apply the parking
brake, shift the shift lever to P, stop the engine and lock the vehicle.
Do not leave the vehicle unattended while the engine is running .
If the vehicle is parked with the shift lever in P but the park ing brake is not
set, the vehicle may start to move, possibly leading to an accident.
● Do not touch the exhaust pipes while the engine is running or i mmediately
after turning the engine off.
Doing so may cause burns.
■ When taking a nap in the vehicle
Always turn the engine off. Otherwise, if you accidentally move the shift
lever or depress the accelerator pedal, this could cause an acc ident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicl e, leading to
death or a serious health hazard.
■ When braking
● When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and this may cause
one side of the vehicle to brake differently than the other side. Also, the
parking brake may not securely hold the vehicle.
● If the brake booster device does not operate, do not follow oth er vehicles
closely and avoid hills or shar p turns that require braking.
In this case, braking is still possible, but the brake pedal should be
depressed more firmly than usual. Also, the braking distance will increase.
Have your brakes fixed immediately.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems; if one of the
systems fails, the other will still operate. In this case, the brake pedal
should be depressed more firmly than usual and the braking dist ance will
increase. Have your brakes fixed immediately.
■ If the vehicle becomes stuck
Do not spin the wheels excessively when any of the tires is up in the air, or
the vehicle is stuck in sand, mud, etc. This may damage the driveline com-
ponents or propel the vehicle forward or backward, causing an accident.

1824-1. Before driving
Vehicle load limits
◆Total load capacity (vehicle capacity weight): P. 541
Total load capacity means the co mbined weight of occupants, cargo
and luggage.
◆Seating capacity: P. 5 4 1
Seating capacity means the max imum number of occupants whose
estimated average weight is 150 lb. (68 kg) per person.
Even if the number of occupants are within the seating capacity , do
not exceed the tota l load capacity.
◆TWR (Trailer Weight Rating): P. 187
TWR means the maximum gross trai ler weight (trailer weight plus
its cargo weight) that your vehicle is able to tow.
◆Cargo capacity
Cargo capacity may increase or decrease depending on the weight
and the number of occupants.
■Total load capacity and seating capacity
These details are also described on the tire and loading information label.
( P. 442)
Vehicle load limits include total load capacity, seating capaci t y,
TWR (Trailer Weight Rati ng) and cargo capacity.
WARNING
■
Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the tires, but also degrade steering
and braking ability, resulting in an accident.

1934-1. Before driving
4
Driving
Your vehicle will handle differently when towing a trailer. To help avoid
an accident, death or serious injury, keep the following in min d when
towing:
● Speed limits for towing a trailer vary by state or province. Do not
exceed the posted to wing speed limit.
● Toyota recommends that the vehicl e-trailer speed limit is 65 mph
(104 km/h) on a flat, straight, dry road. Do not exceed this li mit, the
posted towing speed limit or the speed limit for your trailer a s set
forth in your trailer owner’s manu al, whichever is lowest. Instability
of the towing vehicle-trailer combination (trailer sway) increa ses as
speed increases. Exceeding speed limits may cause loss of contr ol.
● Before starting out, check the trailer lights, tires and the vehicle-
trailer connections. Recheck af ter driving a short distance.
● Practice turning, stopping and reversing with the trailer attac hed in
an area away from traffic until you become accustomed to the fe el
of the vehicle-trailer combination.
● Reversing with a trailer attached is difficult and requires pra ctice.
Grip the bottom of the steering wheel and move your hand to the
left to move the trailer to the left. Move your hand to the rig ht to
move the trailer to the right. (This is generally opposite to r eversing
without a trailer attached.) Avoid sharp or prolonged turning. Have
someone guide you when reversing to reduce the risk of an acci-
dent.
● As stopping distance is increased when towing a trailer, vehicl e-to-
vehicle distance should be increased. For each 10 mph (16 km/h)
of speed, allow at least one v ehicle and trailer length.
● Avoid sudden braking as you may skid, resulting in the trailer jack-
knifing and a loss of vehicle control. This is especially true on wet or
slippery surfaces.
● Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before maki ng
a turn.
● Note that when making a turn, the trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by mak ing
a wider than normal turning radius.
Trailer towing tips

1964-1. Before driving
■Matching trailer ball height to trailer coupler height
■ Before towing
Check that the following conditions are met:
●Ensure that your vehicle’s tires are properly inflated. ( P. 551)
● Trailer tires are inflated according to the trailer manufacture r’s recommen-
dation.
● All trailer lights work as required by law.
● All lights work each time you connect them.
● The trailer ball is set at the proper height for the coupler on the trailer.
● The trailer is level when it is hitched.
Do not drive if the trailer is not level, and check for imprope r tongue weight,
overloading, worn suspension, or other possible causes.
● The trailer cargo is securely loaded.
● The rear view mirrors conform to all applicable federal, state/provincial or
local regulations. If they do not, install rear view mirrors ap propriate for tow-
ing purposes.
● Depress power mode button (vehicles with an automatic transmiss ion).
( P. 212)
No matter which class of tow hitch
applies, for a more safe trailer hookup,
the trailer ball setup must be the proper
height for the coupler on the trailer.
Coupler
Trailer ball
1
2

1984-1. Before driving
■If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.
● If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.
• Begin releasing the accelerator pedal immediately but very gra dually 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. (if enabled, Trailer Sway Control can also help to
stabilize the vehicle and trailer.)
● After the trailer swaying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer.
Make sure the load has not shifted.
Make sure the tongue weight is appropriate, if possible.
• Check the load in the vehicle.
Make sure the vehicle is not overloaded after occupants get in.
If you cannot find any problems, the speed at which trailer swaying occurred
is beyond the limit of your particular vehicle-trailer combinat ion.
Drive at a lower speed to prevent instability. Remember that sw aying of the
towing vehicle-trailer increases as speed increases.

2154-2. Driving procedures
4
Driving
Press the shift lock override
button.
The shift lever can be shifted while
the button is pressed.
■ If the “S” indicator does not come on even after shifting the shift lever to S
This may indicate a malfunction in the automatic transmission system. Have
the vehicle inspected by your Toyota dealer, immediately.
■ Downshifting restrictions warning buzzer (S mode)
To help ensure safety and driving performance, downshifting ope ration may
sometimes be restricted. In some circumstances, downshifting may not be
possible even when the shift lever is operated. (A buzzer will sound twice.)
■ Transmission protection function
If the tires spin continually when the vehicle becomes stuck in mud, dirt or
snow, or if the accelerator pedal is depressed and released repeatedly while
driving, the automatic transmission temperature may become too high and
the automatic transmission may be damaged.
To avoid damaging the automatic transmission, the system may temporarily
lock the gear.
If the automatic transmission temperature falls, the gear locking is canceled
and the automatic transmission is returned to the normal operation.
5
WARNING
■ When driving on slippery road surfaces
Do not accelerate or shift gears suddenly.
Sudden changes in engine braking may cause the vehicle to spin or skid,
resulting in an accident.
■ To prevent an accident when releasing the shift lock
Before pressing the shift lock override button, make sure to se t the parking
brake and depress the brake pedal.
If the accelerator pedal is accidentally depressed instead of t he brake pedal
when the shift lock override button is pressed and the shift lever is shifted
out of P, the vehicle may suddenly start, possibly leading to an accident
resulting in death or serious injury.