fuel cap TOYOTA TUNDRA 2023 Owners Manual

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4-1. Before drivingDriving the vehicle ............. 168
Cargo and luggage............ 178
Vehicle load limits ............. 182
Trailer towing..................... 183
Dinghy towing.................... 201
4-2. Driving procedures Engine (ignition) switch (vehicles without
a smart key system) ........ 202
Engine (ignition) switch (vehicles with a smart
key system) ..................... 205
Automatic transmission ..... 211
Manual transmission ......... 216
Turn signal lever................ 218
Parking brake .................... 219
4-3. Operating the lights and wipers
Headlight switch ................ 220
Automatic High Beam ....... 224
Fog light switch ................. 229
Windshield wipers and washer ............................ 230
4-4. Refueling Opening the fuel tank cap.................... 233 4-5. Using the driving support
systems
Toyota Safety Sense P ...... 237
PCS (Pre-Collision System)..... 245
LDA (Lane Departure Alert)..... 258
Dynamic radar cruise control ................... 266
Cruise control .................... 280
Intuitive parking assist ....... 284
BSM (Blind Spot Monitor)......... 292
• The Blind Spot Monitor function.......................... 294
• The Rear Cross Traffic Alert function ................. 297
Four-wheel drive system ... 303
AUTO LSD system ............ 307
Rear differential lock system ............................. 309
Active traction control system ............................. 312
Multi-terrain Select............. 314
Crawl Control ..................... 318
Clutch start cancel switch .............................. 322
Driving assist systems ....... 323
4-6. Driving tips Winter driving tips .............. 329
Off-road precautions .......... 333
4Driving

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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4Driving
4-4. RefuelingOpening the fuel tank cap.................... 233
4-5. Using the driving support systems
Toyota Safety Sense P ..... 237
PCS (Pre-Collision System) .... 245
LDA (Lane Departure Alert) .... 258
Dynamic radar cruise control ............................. 266
Cruise control .................... 280
Intuitive parking assist ....... 284
BSM (Blind Spot Monitor) ........ 292
• T he Blind Spot Monitor
function ......................... 294
• T he Rear Cross Traffic
Alert function ................. 297
Four-wheel drive system ... 303
AUTO LSD system ............ 307 Rear differential lock
system ............................ 309
Active traction control system ............................ 312
Multi-terrain Select ............ 314
Crawl Control .................... 318
Clutch start cancel switch .............................. 322
Driving assist systems ...... 323
4-6. Driving tips Winter driving tips ............. 329
Off-road precautions ......... 333

1784-1. Before driving
Cargo and luggage
Side rails
To use the deck rails, you must
install genuine Toyota accessories
or their equivalent for the deck
rails.
Follow the manufacturer’s instruc-
tions and precautions when install-
ing a genuine Toyota accessory or
equivalent.
Take notice of the following information about storage precau-
tions, cargo capacity and load:● Stow cargo and luggage in the rear deck whenever possible.
● Be sure all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do no t carry unnecessary weight.
Deck rails
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WARNING
■When you secure cargo with the deck rails
Be sure to follow the instructions below in order to avoid the cargo coming
loose.
● Do not install accessories (tie-down cleats, storage boxes, etc .) at more
than the following number of locations per deck rail.
• Side rail: Short deck—Max. 3 locations
Long deck—Max. 4 locations
● Spread out tie-down/support locations evenly along the length of the rails.
● Do not exceed a total tensile load of 440 lb. (200 kg) per deck rail.
● To prevent luggage or cargo from sliding forward during braking, make
sure the deck rail accessories such as storage box are securely attached
on the deck rails.

2334-4. Refueling
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Driving
Opening the fuel tank cap
●Vehicles without a smart key system:
Turn the engine switch to the “LOCK” position and ensure that a ll
the doors and wind ows are closed.
● Vehicles with a smart key system:
Turn the engine switch off and ens ure that all the doors and win-
dows are closed.
● Confirm the type of fuel.
■Fuel types
P. 554
■ Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ If the malfunction indicator lamp illuminates
The malfunction indicator lamp may illuminate erroneously if re fueling is per-
formed repeatedly when the fuel tank is nearly full.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle

2344-4. Refueling
WARNING
■When refueling the vehicle
Observe the following precautions while refueling the vehicle.
Failure to do so may result in death or serious injury.
● After exiting the vehicle and before opening the fuel door, touch an
unpainted metal surface to discharge any static electricity. It is important to
discharge static electricity before refueling, because sparks resulting from
static electricity can cause fuel vapors to ignite while refueling.
● Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened.
Wait until the sound cannot be heard before fully removing the cap. In hot
weather, pressurized fuel may spray out the filler neck and cau se injury.
● Do not allow anyone that has not discharged static electricity from their
body to come close to an open fuel tank.
● Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.
● Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
● Do not return to the vehicle or touch any person or object that is statically
charged.
This may cause static electricity to build up, resulting in a p ossible ignition
hazard.
■ When refueling
Observe the following precautions to prevent fuel overflowing from the fuel
tank:
● Securely insert the fuel nozzle into the fuel filler neck.
● Stop filling the tank after the fuel nozzle automatically click s off.
● Do not top off the fuel tank.
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission c ontrol
system to operate abnormally, or damaging fuel system components or the
vehicle’s painted surface.

2354-4. Refueling
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Driving
Open the fuel filler door.
Turn the fuel tank cap slowly
open.
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
Opening the fuel tank cap
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Closing the fuel tank cap

2364-4. Refueling
■Closing the fuel tank cap
Tighten the fuel tank cap until 1 click is heard. Otherwise a m alfunction indica-
tor lamp may come on.
WARNING
■ When replacing the fuel tank cap
Do not use anything but a genuine Toyota fuel tank cap designed for your
vehicle. Otherwise, doing so may cause a fire or other incident which may
result in death or serious injury.

4146-2. Maintenance
Emission inspection and maintenance (I/M)
programs
The OBD system determines that a problem exists somewhere in th e
emission control system. Your vehicle may not pass the I/M test and
may need to be repaired. Contact your Toyota dealer to service the
vehicle.
● When the battery is disc onnected or discharged
Readiness codes that are set duri ng ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tan k cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle m ay not pass the I/M test.
The error code in th e OBD system will not be cleared unless the vehi-
cle is driven 40 or more times.
Contact your Toyota dea ler to prepare the vehicle for re-testin g.
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system
monitors the operation of t he emission control system.
If the malfunction indicator lamp comes on
Your vehicle may not pass the I/M test in the following situations:
When the malfunction indicator lamp still remains on after sev-
eral driving trips
If your vehicle does not pass the I/M test

4436-3. Do-it-yourself maintenance
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Maintenance and care
Tire valve
Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended level, adjust
the pressure.
If you add too much air, press the center of the valve to defla te.
After completing the tire inflation pressure measurement and
adjustment, apply soapy water to the valve and check for leakage.
Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation p ressure every two weeks, or at least once
a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrec t tire inflation pressure may result in th e following:
●Reduced fuel economy
●Reduced driving comfort and poor handling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating , have it checked by your Toyota dealer.
Inspection and adjustment procedure
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