TOYOTA TUNDRA 2021 Owners Manual (in English)

2214-2. Driving procedures
4
Driving
If the engine is stopped with the shift lever in a position other than P,
the engine switch will not be turn ed off but instead be turned to ACC.
Perform the following procedure to turn the switch off:
Check that the park ing brake is set.
Shift the shift lever to P.
Check that “Turn Power OFF” is displayed on the multi-informati on
display and then press the engine switch once.
Check that “Turn Power OFF” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACC for more than 20 minutes or ON (the engine is not
running) for more than an hour with the shift lever in P, the engine switch will
automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACC or ON for
long periods of time when the engine is not running.
■ Automatic engine shut off feature (except for New Caledonia)
●The vehicle is equipped with a feature that automatically shuts off the
engine when the shift lever is in P with the engine running for an extended
period.
● The engine will automatically shut off after approximately 1 ho ur if it has
been left running while the shift lever is in P.
● The timer for the automatic engine shut off feature will reset if the brake
pedal is depressed or if the shift lever is in a position other than P.
● After the vehicle is parked, if the door is locked with the door lock switch
(P. 130) from the inside or the mechanical key ( P. 523) from the outside,
the automatic engine shut off feature will be disabled. The tim er for the auto-
matic engine shut off feature will be re-enabled if the driver’ s door is
opened.
When stopping the engine with the shift lever in a position other
than P
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2224-2. Driving procedures
■Electronic key battery depletion
P. 124
■ Conditions affecting operation
P. 142
■ Note for the entry function
P. 142
■ If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 85)
Contact your Toyota dealer.
● Check that the shift lever is securely set in P. The engine may not start if the
shift lever is displaced out of P. “Shift to P Position” will b e displayed on the
multi-information display.
■ Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function . Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, operation of the motor
may be suspended if the engine is turned on and off repeatedly in a short
period of time. In this case, refrain from running the engine. After about
10 seconds, the steering lock motor will resume functioning.
■ When “Smart Entry & Start System Check” is displayed on the multi-
information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the electronic key battery is depleted
P. 451 A message will be displayed on the multi-
information display.
Check that the shift lever is in P. Press the
engine switch while turning the steering
wheel left and right.

2234-2. Driving procedures
4
Driving
■Operation of the engine switch
●If the switch is not pressed shortly and firmly, the engine swi tch mode may
not change or the engine may not start.
● If attempting to restart the engine immediately after turning t he engine
switch off, the engine may not start in some cases. After turni ng the engine
switch off, please wait a few seconds before restarting the eng ine.
■ If the smart key system has been d eactivated by a customized setting
P. 523
WARNING
■ When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the
accelerator pedal while starting the engine under any circumsta nces.
Doing so may cause an accident resulting in death or serious in jury.
■ Caution while driving
If engine failure occurs while the vehicle is moving, do not lo ck or open the
doors until the vehicle reaches a safe and complete stop. Other wise, the
steering lock function will activate and this may lead to an ac cident, result-
ing in death or serious injury.
■ Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving th e vehicle,
press and hold the engine switch for more than 2 seconds, or pr ess it briefly
3 times or more in succession. ( P. 475)
However, do not touch the engine switch while driving except in an emer-
gency. Turning the engine off while driving will not cause loss of steering or
braking control, however, power assist to the steering will be lost. This will
make it more difficult to steer smoothly, so you should pull ov er and stop the
vehicle as soon as it is safe to do so.
■ When parking (except for New Caledonia)
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.
● 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 running for a long tim e. If such a
situation cannot be avoided, park the vehicle in an open 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.

2244-2. Driving procedures
NOTICE
■To prevent battery discharge
● Do not leave the engine switch in ACC or ON for long periods of time with-
out the engine running.
● If “ACCESSORY” or “IGNITION ON” is displayed on the multi-infor mation
display while the engine is not running, the engine switch is n ot off. Exit the
vehicle after turning the engine switch off.
● Do not stop the engine when the shift lever is in a position ot her than P. If
the engine is stopped in another shift lever position, the engi ne switch will
not be turned off but instead be turned to ACC. If the vehicle is left in ACC,
battery discharge may occur.
■ When starting the engine
● Do not race a cold engine.
● If the engine becomes difficult to start or stalls frequently, have your vehi-
cle checked by your Toyota dealer immediately.
■ Symptoms indicating a malfunction with the engine switch
If the engine switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunctio n. Contact
your Toyota dealer immediately.

2254-2. Driving procedures
4
Driving
Automatic transmission
Floor shift typeWhile the engine switch is in ON, move the shift lever with the
brake pedal depressed.
When shifting the shift lever between P and D, make sure that t he vehi-
cle is completely stopped.
Shifting the shift lever

2264-2. Driving procedures
Column shift typeWhile the engine switch is in ON, move the shift lever with the
brake pedal depressed.
When shifting the shift lever between P and D, make sure that t he vehi-
cle is completely stopped.
*1: To improve fuel efficiency and reduce noises, set the shift le ver in the D
position for normal driving.
*2: Selecting shift ranges using S mode restricts the upper limit of the possible
gear ranges, controls engine braking forces, and prevents unnec essary
upshifting.
Shift position purpose
Shift positionFunction
PParking the vehicle/starting the engine
RReversing
NNeutral
(Condition in which the power is not transmitted)
DNormal driving*1
SS mode driving*2 ( P. 227)

2274-2. Driving procedures
4
Driving
To enter S mode, shift the shift lever to S. Shift ranges can be selected
by operating the shift lever, allowing you to drive in the shif t range of
your choosing. The shift range can be selected by the shift lev er.
Upshifting
Downshifting
The selected shift range, from 1 to 6, will be displayed in the meter.
The initial shift range in S mode is set automatically to 5 or 4 accord-
ing to vehicle speed. However, the initial shift range may be s et to 3 or
2 if the AI-SHIFT ( P. 229) has operated while the shift lever was in
the D position.
Selecting shift range s in the S position
Floor shift typeColumn shift type
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2284-2. Driving procedures
■Shift ranges and their functions
●Automatically selecting gears between 1 and 6 according to vehi -
cle speed and dri ving conditions.
● You can choose from 6 levels 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. T he 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

2294-2. Driving procedures
4
Driving
■AI-SHIFT
AI-SHIFT automatically selects the suitable gear according to t he 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 functio n.)
■ When driving with cruise cont rol activated (if equipped)
Even when performing the following actions with the intent of e nabling engine
braking, engine braking will not activate while driving in S mo de and down-
shifting to 5 or 4 because cruise control will not be canceled. (P. 280 294)
■ 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 swit ch is in ON
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 brak e 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 ensu re that
the shift lever can be shifted.
Releasing the shift lock:
Set the parking brake.
Turn the engine switch to OFF.
Depress the brake pedal.
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2304-2. Driving procedures
Pry the cover up with a flathead screwdriver or equivalent tool.
To prevent damage to the cover, cover the tip of the screwdrive r with a rag.
Press the shift lock override button.
The shift lever can be shifted while the button is pressed.4
Floor shift typeColumn-shift type
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Floor shift typeColumn-shift type