2023 TOYOTA TUNDRA HYBRID power steering

1583-4. Adjusting the steering wheel and mirrors
Owners Manual_USA_M0C052_en
■Recommended mirror angle
when towing a trailer (vehicles
with extending mirrors)
1 Power adjust the upper part of
the mirror until an appropriate
view is obtained. It is recom-
mended that the outer 2/3 of the
upper mirror be f illed with images
other than the vehicle and trailer.
2 Manually adjust the lower part of
the mirror until an appropriate
view of the towed object is
obtained. It is recommended that
the outer 2/3 of the lower mirror
be filled with images other than
the trailer.
When either “L” or “R” of the mir-
ror select switch is selected, the
outside rear view mirrors will
automatically angle downwards
when the vehicle is reversing in
order to give a better view of the
ground. To disable this function, select
neither “L” nor “R”.
■Adjusting the mirror angle
when the vehicle is revers-
ing
With the shift lever in R, adjust
the mirror angle at a desired
position.
The adjusted angle will be mem-
orized 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 posi-
tion of the mirror is linked to the
normal position (angle adjusted
with the shift posit ion in other than
R). Therefore, if the normal position
is changed after adjustment, the tilt
position will also change.
When the normal position is
changed, readjust the angle in
reversing.
Improves reverse operation for
trailer parking by turning on the
outer mirror lights at night.
These lights can be used as
work lights.
When the shift lever is in P or R,
press the switch.
Linked mirror function
when reversing (if
equipped)
Trailering light (if
equipped)

1764-1. Before driving
Owners Manual_USA_M0C052_en
WARNING
■When taking a nap in the vehi-
cle
Always turn the hybrid system off.
Otherwise, if you accidentally
move the shift lever or depress
the accelerator pedal, this could
cause an accident or fire due to
hybrid system overheating. Addi-
tionally, if the vehicle is parked in
a poorly ventilated area, exhaust
gases may collect and enter the
vehicle, leading to death or a seri-
ous health hazard.
■When braking
●When the brakes a re 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 electroni cally controlled
brake does not operate, do not
follow other vehicl es closely and
avoid hills or sharp turns that
require braking.
In this case, braking is still pos-
sible, but the brake pedal
should be depressed more
firmly than usual. Also, the brak-
ing distance will increase. Have
your brakes fixed immediately.
●The brake system consists of 2
or more individual hydraulic sys-
tems; 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 distance
will increase. Have your brakes
fixed immediately.
■If the vehicle becomes stuck
Do not spin the wheels exces-
sively when a driven wheel is up
in the air, or the vehicle is stuck in
sand, mud, etc. This may damage
the driveline components or pro-
pel the vehicle forward or back-
ward, causing an accident.
NOTICE
■When driving the vehicle
●Do not depress the accelerator
and brake pedals at the same
time during driving, as this may
restrain the hybrid system out-
put.
●Do not use the accelerator
pedal or depress the accelera-
tor and brake pedals at the
same time to hold the vehicle on
a hill.
■When parking the vehicle
Always set the parking brake and
shift the shift lever to P. Failure to
do so may cause the vehicle to
move or the vehicle may acceler-
ate suddenly if t he accelerator
pedal is accidentally depressed.
■Avoiding damage to vehicle
parts
●Do not turn the steering wheel
fully in either direction and hold
it there for an extended period
of time.
Doing so may damage the
power steering motor.
●When driving over bumps in the
road, drive as slowly as possible
to avoid damaging the wheels,
underside of the vehicle, etc.

1974-2. Driving procedures
Owners Manual_USA_M0C052_en
4
Driving
1 Stop the vehicle completely.
2 Set the parking brake
( P.205), and shift the shift
lever to P.
Check the parking brake indicator
is illuminated.
3 Press the power switch
shortly and firmly.
The hybrid system will stop, and the
meter display will be extinguished.
4Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the meter.
■Automatic hybrid system shut
off feature
●The vehicle is equipped with a
feature that automatically shuts off
the hybrid system when the shift
lever is in P with the hybrid system
operating for an extended period.
●The hybrid system will automati- cally shut off after approximately 1
hour if it has been left running
while the shift lever is in P.
●The timer for the automatic hybrid
system 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.116) from the inside or
the mechanical key ( P.112) from
the outside, the automatic hybrid
system shut off feature will be dis-
abled. The timer for the automatic
hybrid syste m shut off feature will
be re-enabled if the driver’s door
is opened.
NOTICE
■When starting the hybrid sys-
tem
If the hybrid system becomes diffi-
cult to start, have your vehicle
checked by your Toyota dealer
immediately.
■Symptoms indicating a mal-
function with the power
switch
If the power switch seems to be
operating somewh at differently
than usual, such as the switch
sticking slightly, there may be a
malfunction. Contact your Toyota
dealer immediately.
Stopping the hybrid sys-
temWARNING
■Stopping the hybrid system
in an emergency
●If you want to stop the hybrid
system in an emergency while
driving the vehicle, press and
hold the power s witch for more
than 2 seconds, or press it
briefly 3 times or more in suc-
cession. ( P.494)
However, do not touch the
power switch while driving
except in an emergency. Turn-
ing the hybrid s ystem off while
driving will not cause loss of
steering or braking control, but
the power assist to these sys-
tems will be lost. This will make
it more difficult to steer and
brake, so you should pull over
and stop the vehicle as soon as
it is safe to do so.
●If the power switch is operated
while the vehicle is running, a
warning message will be shown
on the multi-information display
and a buzzer sounds.

2034-2. Driving procedures
Owners Manual_USA_M0C052_en
4
Driving
range when the fluid temperature
is high.
●When the shift range is 9 or lower,
holding the shift lever toward “+”
sets the shift range to 10.
■Downshifting restriction warn-
ing buzzer
To help ensure safety and driving
performance, downshifting opera-
tion may sometimes b e restricted. In
some circumstances, downshifting
may not be possible even when the
shift lever is opera ted. (A buzzer will
sound twice.)
■If the S indicator does not come
on even after shifting the shift
lever to S
This may indicate a malfunction in
the automatic tra nsmission system.
Have the vehicle inspected by your
Toyota dealer immediately.
Use “TOW HAUL” or “TOW+”
mode when pulling a trailer or
hauling a heavy load. Activating
“TOW HAUL” or “TOW+” mode
is changes engine, transmis-
sion, and steering to be more
suitable when pulling a trailer. “TOW HAUL” indicator
“TOW+” indicator
“TOW HAUL” switch
Mode select switch
1 Press the “TOW HAUL”
switchThe “TOW HAUL” indicator will
come on.
Press the switch once more to can-
cel the mode.
2Turn the mode select switch
to change between “TOW
HAUL” or “TOW+” modes.
When more towing power is
needed than is available in “TOW
HAUL” mode, use “TOW+” mode.
( P.204)
The “TOW+” indicator will come on.
■Automatic deactivation of
“TOW HAUL” and “TOW+”
mode
“TOW HAUL” and “TOW+” mode is
deactivated the following conditions:
●When the front-wheel drive control
switch is in “4L”
●When driving m ode select or
Multi-terrain Select (if equipped) is
“TOW HAUL” switch (if
equipped)

2344-5. Using the driving support systems
Owners Manual_USA_M0C052_en
■Enabling/disabling the pre-
collision system
The pre-collision system can be
enabled/disabled on
( P.567) of the multi-informa-
tion display.
The system is a utomatically
enabled each time the power
switch is turned to ON.
If the system is disabled, the
PCS warning light will turn on
and a message will be displayed
on the multi-information display.
“Pre-Collision System OFF”
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on
( P.567) of the multi-informa-
tion display.
The warning timing setting is
retained when the power switch is
turned off. However, if the pre-colli-
sion system is disabled and re-
enabled, the operation timing will
return to the default setting (mid-
dle).
If the pre-collision warning tim-
ing is changed, emergency
steering assist timing will also
be changed accordingly.
If late is selected, emergency
steering assist would not oper-
ate in case of an emergency.
1 Early
2 Middle
This is the default setting.
3Late
WARNING
●If equipment (snow plow, etc.)
that may obstruct the radar sen-
sor or front camera is temporar-
ily installed to the vehicle
●When the vehicle is lifted up,
except in the following cases
• When using a Toyota official lift kit up to 4 in. (101 mm), includ-
ing tire height. Aftermarket lift
kits may degrade system perfor-
mance.
Changing settings of the
pre-collision system

2384-5. Using the driving support systems
Owners Manual_USA_M0C052_en• When passing a detectable object
in an oncoming lane that is
stopped to make a right/left turn
• When a detectable object approaches very close and then
stops before entering the path of
your vehicle
• If the front of your vehicle is raised
or lowered, such as when on an
uneven or undulating road surface
• When driving on a road sur-
rounded by a structure, such as in
a tunnel or on an iron bridge
• When there is a metal object
(manhole cover, steel plate, etc.),
steps, or a protrusion in front of
your vehicle
• When passing under an object (road sign, billboard, etc.)
• When approaching an electric toll gate barrier, parking area barrier,
or other barrier that opens and
closes
• When using an automatic car wash
• When driving through or under objects that may contact your
vehicle, such as thick grass, tree
branches, or a banner
• When driving through steam or smoke
• When driving near an object that reflects radio waves, such as a
large truck or guardrail
• When driving near a TV tower, broadcasting station, electric
power plant, radar equipped vehi-
cles, etc., or other location where
strong radio waves or electrical
noise may be present
• When there are many things which can reflect the radio waves
of the radar in the vicinity (tunnels,
truss bridges, gravel roads, snow
covered road that have tracks,
etc.)
• While making a right/left turn,
when an oncoming vehicle or a
crossing pedestrian has already
exited the path of your vehicle
• While making a right/left turn,
closely in front of an oncoming
vehicle or a crossing pedestrian.
• While making a right/left turn,
when an oncoming vehicle or a
crossing pedestrian stops before
entering the path of your vehicle
• While making a right/left turn,
when an oncoming vehicle turns
right/left in fron t of your vehicle
• While steering into the direction of

2424-5. Using the driving support systems
Owners Manual_USA_M0C052_en
While driving on a road with
clear white (yellow) lane lines,
the LTA system warns the driver
if the vehicle may deviate from
the current lane
*, and also can
slightly operate the steering
wheel to help avoid deviation
from the lane. Also, while the
dynamic radar cruise control
with full-speed range is operat-
ing, this system will operate the
steering wheel to maintain the
vehicle’s lane position.
The LTA system recognizes
white (yellow) lane lines
* using
the front camera. Additionally, it
detects preceding vehicles
using the front camera and
radar.
*: May recognize the boundaries between the asphalt and the side
of the road, such as grass, soil, or
the curb, to be road lanes
LTA (Lane Tracing
Assist)
Summary of functions
WARNING
■Before using LTA system
●Do not rely solely upon the LTA
system. The LTA system does
not automatically drive the vehi-
cle or reduce the amount of
attention that m ust be paid to
the area in front of the vehicle.
The driver must always assume
full responsibilit y for driving
safely by paying careful atten-
tion to the surrounding condi-
tions and operating the steering
wheel to correct the path of the
vehicle. Also, the driver must
take adequate breaks when
fatigued, such as from driving
for a long period of time.
●Failure to perform appropriate
driving operations and pay care-
ful attention may lead to an
accident, resulting in death or
serious injury.
●When connecting a trailer which
can be connected with Toyota’s
official TBC ECU, the lane cen-
tering function will be disabled
automatically when LTA detects
a trailer connection.
When other trailer is connected,
turn off the lane centering func-
tion if a trailer is connected and
it is not automatically disabled.
After trailer disconnect and
power switch is turned off, lance
centering function can be turned
on.

2434-5. Using the driving support systems
Owners Manual_USA_M0C052_en
4
Driving
WARNING
●This vehicle has Automatic
Trailer Detection feature that
can detect certain trailers under
certain conditions. After trailer is
detected, lane centering func-
tion will be disabled. In certain
conditions, there is a possibility
of falsely detecting trailer when
there is no actual trailer. In that
case, lane centering function
will be disabled. To activate lane
centering function, turn power
switch to off and then turn it on
again.
●Following scenes has possibility
of false detection of trailer:
Crowded environments such as
parking lots or camping
grounds, closely following vehi-
cles such traffic jam, drive
through, parallel parking, etc.
●Do not use the lane centering
system and steering assist func-
tion when the vehicle is lifted
unless using a Toyota official lift
up kit up to 4 in. (101 mm),
including tire height. Aftermar-
ket lift kits may degrade system
performance.
■Situations unsuitable for LTA
system
In the following situations, use the
LTA switch to turn the system off.
Failure to do so may lead to an
accident, resulting in death or
serious injury.
●Vehicle is driven on a road sur-
face which is slippery due to
rainy weather, fallen snow,
freezing, etc.
●Vehicle is driven on a snow-cov-
ered road.
●White (yellow) lines are difficult
to see due to rain, snow, fog,
dust, etc.
●Vehicle is driven in a temporary
lane or restricted lane due to
construction work.
●Vehicle is driven in a construc-
tion zone.
●A spare tire, tire chains, etc.,
are equipped.
●When the tires have been
excessively worn, or when the
tire inflation p ressure is low.
●When your vehicles is towing a
trailer or another vehicle, except
when the followin g condition is
met.
• When the other vehicle is a trailer properly attached and
connected to Toyota’s official
TBC ECU. ( P.181)
●When the vehicle is lifted up,
except in the following cases.
• When using a Toyota official lift kit up to 4 in. (101 mm), includ-
ing tire height. Aftermarket lift
kits may degrade system perfor-
mance.
■Preventing LTA system mal-
functions and operations per-
formed by mistake
●Do not modify the headlights or
place stickers, etc., on the sur-
face of the lights.
●Do not modify the suspension,
etc. If the suspension, etc.,
needs to be replaced, contact
your Toyota dealer.
●Do not install or place anything
on the hood or grille. Also, do
not install a gr ille guard (bull
bars, kangaroo bar, etc.).
●If your windshield needs
repairs, contact your Toyota
dealer.