engine TOYOTA TUNDRA 2017 2.G Repair Manual

1874-2. Driving procedures
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Driving
■Shift ranges and their functions
●Automatically selecting gears bet ween 1 and 6 (6-speed models)
or 1 and 5 (5-speed models) accord ing to vehicle speed and driv-
ing conditions.
● You can choose from 6 levels (6 -speed models) or 5 levels (5-
speed models) of accelerating force and engine braking force.
● A lower shift range will provide greater accelerating force and
engine braking force than a higher shift range, and the engine
revolutions will also increase.
Use TOW/HAUL mode when pulling a trailer or hauling a heavy load.
Press the TOW/HAUL switch. The indicator will come on.
Press the switch once more to cancel the mode.
TOW/HAUL switch (vehicles with towing package)
Floor shift typeColumn shift type

1884-2. Driving procedures
■AI-SHIFT
AI-SHIFT automatically selects the suitable gear according to the driver per-
formance and driving conditions.
AI-SHIFT automatically operates when the shift lever is in the D position.
(Shifting the shift lever to the S position cancels the function.)
■ When driving with cruise control activated (if equipped)
Even when performing the following actions with the intent of enabling engine
braking, engine braking will not activate while driving in S mode and down-
shifting to 5 or 4 (6-speed models) or 4 (5-speed models) because cruise
control will not be canceled. ( →P. 204)
■ Shift lock system
The shift lock system is a system to prevent accidental operation of the shift
lever in starting.
The shift lever can be shifted from P only when the engine switch is in the
“ON” position and the brake pedal is being depressed.
■ If the shift lever cannot be shifted from P
First, check whether the brake pedal is being depressed.
If the shift lever cannot be shifted with your foot on the brake pedal, there may
be a problem with the shift lock system. Have the vehicle inspected by your
Toyota dealer immediately.
The following steps may be used as an emergency measure to ensure that
the shift lever can be shifted.
Releasing the shift lock:
Set the parking brake.
Turn the engine switch to the “LOCK” position.
Depress the brake pedal.
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1904-2. Driving procedures
■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.
(In this situation, the transmission will operate in the same manner as when
the shift lever is in D.)
■ Downshifting restrictions warning buzzer (S mode)
To help ensure safety and driving performance, downshifting operation 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, dir\
t or
snow, the automatic transmission temperature may become too high and
cause damage.
To avoid the damaging the automatic transmission, the system may tempo-
rarily lock the gear in 1st.
If the automatic transmission temperature falls, the gear locking is canceled
and returns the automatic transmission to the normal operation.
CAUTION
■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 set the parking
brake and depress the brake pedal.
If the accelerator pedal is accidentally depressed instead of the 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.

1914-2. Driving procedures
4
Driving
Turn signal lever
Right turn
Lane change to the right (push
and hold the lever partway)
The right hand signals will flash
until you release the lever.
Lane change to the left (push
and hold the lever partway)
The left hand signals will flash until
you release the lever.
Left turn
■Turn signals can be operated when
The engine switch is in the “ON” position.
■ If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned
out.
Operating instructions
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1934-3. Operating the lights and wipers
4
Driving
Headlight switch
Turning the end of the lever turns on the lights as follows:(U.S.A.) or (Canada)
Off
The daytime running lights
turn on. ( →P. 195)
The side marker, parking,
tail, license plate and
instrument panel lights
turn on.
The headlights and all
lights listed above (except
daytime running lights)
turn on.
(If equipped)
The headlights, daytime running lights ( →P. 195) and all the
lights listed above turn on and off automatically.
(When the engine switch is in the “ON” position.)
The headlights can be operated manually or automatically.
Operating instructions
U.S.A.Canada
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1954-3. Operating the lights and wipers
4
Driving
■Daytime running light system
●To make your vehicle more visible to other drivers during daytime driving,
the daytime running lights turn on automatically whenever the engine is
started and the parking brake is released with the headlight switch off or in
the “AUTO” position. (Illuminate brighter than the parking lights.) Daytime
running lights are not designed for use at night.
● Compared to turning on the headlights, the daytime running light system
offers greater durability and consumes less electricity, so it can help improve
fuel economy.
■ Headlight control sensor (vehicl es with automatic headlight system)
■ Automatic light off system
●When the headlights come on: The headlights and tail lights turn off 30 sec-
onds after a door is opened and closed if the engine switch is turned to the
“ACC” or “LOCK” position. (The lights turn off immediately if the button
on the key is pressed after all the doors are locked.)
● When only the tail lights come on: The tail lights turn off automatically if the
engine switch is tuned to the “ACC” or “LOCK” position and the driver’s door
is opened.
Vehicles with automatic headlight system: If any of the doors is kept open, the
lights automatically turn off after 20 minutes.
To turn the lights on again, turn the engine switch to the “ON” position, or turn
the light switch off once and then back to or .
■ Light reminder buzzer
A buzzer sounds when the key is removed from the engine switch and the
driver’s door is opened while the lights are turned on.
■ Customization that can be co nfigured at Toyota dealer
Settings (automatic light off system) can be changed.
(Customizable features: →P. 543)
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
NOTICE
■
To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not
running.

1994-3. Operating the lights and wipers
4
Driving
■The windshield wipers and washer can be operated when
The engine switch is in the “ON” position.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the
windshield washer fluid reservoir.
CAUTION
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes
warm. The fluid may freeze on the windshield and cause low visibility. This
may lead to an accident, resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may over-
heat.
■ When a nozzle becomes blocked
In this case, contact your Toyota dealer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

2004-4. Refueling
Opening the fuel tank cap
●Turn the engine switch to the “LOC K” position and ensure that all
the doors and windows are closed.
● Confirm the type of fuel. ( →P. 520)
Open the fuel filler door.
Turn the fuel tank cap slowly
open, and hang the fuel tank
cap on the back of the fuel filler
door.
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
Opening the fuel tank cap
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2014-4. Refueling
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Driving
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.
■Fuel types
(
→P. 520)
■ E85 Fueling Stations (Flex-fuel vehicles)
E85 fueling stations and fuel pumps can be identified by the indication “E85
85% Ethanol”. For more information about fueling stations, please refer to the
U.S. Department of Energy Web site.
http://www.afdc.energy.gov/afdc/locator/stations/
■ Refueling (Flex-fuel vehicles)
Observe the following precautions when switching fuels, in order to maintain
starting and driving performance.
●Do not change fuels when the fuel level is 1/4 or less.
● Always add at least 2.6 gal. (10 L) of fuel.
● After filling up with fuel, warm up the engine or drive the vehicle for at least 5
minutes or 7 miles (11 km).
● Do not accelerate rapidly immediately after refueling.
■ Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, y our vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
Closing the fuel tank cap

2034-4. Refueling
4
Driving
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control
system to operate abnormally or damaging fuel system components or the
vehicle’s painted surface.
■ E85 fuel
E85 fuel can be used only in flex-fuel vehicles. Do not add E85 fuel to a
gasoline-engine vehicle.
Filling a gasoline-engine vehicle with E85 fuel will have a negative impact
on starting and driving performance and will cause damage to the fuel sys-
tem components.