suspension TOYOTA TUNDRA HYBRID 2023 Owners Manual

3TABLE OF CONTENTS
Owners Manual_USA_M0C052_en
1
2
3
4
5
6
7
8
9
3-5. Opening, closing the win- dows and moon roof
Power windows ............. 160
Power back window ...... 163
Panoramic moon roof.... 164
4-1. Before driving Driving the vehicle......... 171
Cargo and luggage ....... 178
Vehicle load limits ......... 180
Trailer towing................. 181
Dinghy towing ............... 194
4-2. Driving procedures Power (ignition) switch .. 195
Automatic transmission . 200
Turn signal lever............ 204
Parking brake ................ 205
Brake Hold .................... 208
4-3. Operating the lights and wipers
Headlight switch ............ 211
Fog light switch ............. 214
AHB (Automatic High Beam) .................................... 214
Light bar ........................ 218
Windshield wipers and washer......................... 218
4-4. Refueling Opening the fuel tank cap.................................... 2224-5. Using the driving support
systems
Toyota Safet y Sense 2.5225
PCS (Pre-Collision System) .................................... 230
LTA (Lane Tracing Assist) .................................... 242
RSA (Road Sign Assist). 253
Dynamic radar cruise control with full-speed range ... 256
BSM (Blind Spot Monitor) .................................... 267
Intuitive parking assist ... 274
RCTA (Rear Cross Traffic Alert) ............................ 281
PKSB (Parking Support Brake) .......................... 287
Parking Support Brake func- tion (static objects) ...... 292
Parking Support Brake func- tion (rear-crossing vehicles)
.................................... 295
Toyota parking assist monitor .................................... 297
Panoramic view monitor 310
Multi-terrain Monitor ...... 344
Electronically modulated air suspension .................. 355
Driving mode s elect switch
.................................... 358
Four-wheel drive system 361
AUTO LSD system ........ 36
3
Re ar dif

ferential lock system
.................................... 364
Crawl Control................. 365
Multi-terrain Select ........ 369
Downhill assist control sys- tem .............................. 372
4Driving

451-1. For safe use
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1
For safety and security
WARNING
●Modifications to the front door
panel (such as making a hole in
it)
●Repairs or modifications of the
front fender, front bumper, or
side of the occ upant compart-
ment
●Installation of a grille guard (bull
bars, kangaroo bar, etc.), snow
plows, winches or roof luggage
carrier
●Modifications to the vehicle’s
suspension system
●Installation of electronic devices
such as mobile two-way radios
and CD players
●Modifications to your vehicle for
a person with a physical disabil-
ity

882-1. Instrument cluster
Owners Manual_USA_M0C052_en
*1: These lights turn on when the power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybrid system is
started, or after a few seconds.
There may be a malfunction in a
system if the light does not come
on, or turn off. Have the vehicle
inspected by your Toyota dealer.
*2: This light illuminates on the multi-informatio n display with a
message.
*3: Intuitive parking assist OFF indi- cator turns on when the power
switch is turned to ON while the
Intuitive parking assist function is
on. It will turn off after a few sec-
onds.
(Flashes)
Rear differential lock
indicator (if equipped)
( P.506)
Tire pressure warning
light
*1 (  P.506)
Low fuel level warn-
ing light ( P.507)
Driver’s and front pas-
senger’s seat belt
reminder light
(  P.507)
Rear passengers’ seat
belt reminder lights
(  P.507)
Air suspension mal-
function indicator (if
equipped) ( P.508)
Trailer brake warning
light ( P.508)
WARNING
■If a safety system warning
light does not come on
Should a safety system light such
as the ABS and SRS warning light
not come on when you start the
hybrid system, this could mean
that these system s are not avail-
able to help protect you in an acci-
dent, which could result in death
or serious injury. Have the vehicle
inspected by you r Toyota dealer
immediately if this occurs.

902-1. Instrument cluster
Owners Manual_USA_M0C052_en
*1: This light illuminates on the multi-information display with a
message.
*2: Depending on the operating con-ditions of the system, the color
and state (illuminat ed/blinking) of
the indicator change.
*3: The light comes on when the system is turned off.
*4: Intuitive parking assist OFF indi-cator turns on wh en the power
switch is turned t o ON while the
Intuitive parking assist function is
on. It will turn off after a few sec-
onds.
*5: These lights tu rn on when the
power switch is turned to ON to
indicate that a system check is
being performed. They will turn
off after the hybrid system is
started, or after a few seconds.
There may be a malfunction in a
system if the lights do not turn
on, or turn off. Have the vehicle
inspected by your Toyota dealer.
*6: This light illuminates on the out- side rear view mirrors.
*7: This light illuminates on the over-head console.
*8: When the outside temperature is approximately 37°F (3°C) or
lower, the indicator will flash for
approximately 10 seconds, then
stay on.
“COMFORT” mode indi-
cator (if equipped)
(
 P.358)
“CUSTOM” mode indica-
tor (if equipped) ( P.358)
Downhill assist control
system indicator
*6 (if
equipped) ( P.372)
Air suspension indicator
(if equipped) ( P.355)
“4H” indicator (if
equipped) ( P.361)
“4L” indicator (if
equipped) ( P.361)
“AUTO LSD” indicator
*5
(if equipped) ( P.363)
Rear differential lock indi-
cator (if equipped)
(  P.364)
Crawl Contro l indicator
*5
(if equipped) ( P.365)
Crawl Control speed level
indicator (if equipped)
(  P.365)
AUTO mode indicator (if
equipped) ( P.369)
DIRT mode indicator (if
equipped) ( P.369)
SAND mode indicator (if
equipped) ( P.369)
MUD mode indicator (if
equipped) ( P.369)
DEEP SNOW mode indi-
cator (if equipped)
(  P.369)
“TOW HAUL” indicator
(  P.203)
“TOW+” indicator
( P.203)
“AIR BAG ON/OFF”
indicator
*3, 7 (  P. 4 6 )

1012-1. Instrument cluster
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2
Vehicle status information and indicators
Change the number of axles.
Change the brake type (elec-
tric or electric over hydraulic)
and weight of the trailer, or
turn trailer brakes off for that
trailer.
Save the trailer information
If there are any errors with the
trailer values, re-select the value or
delete and re-save the trailer. If the
error continues, contact your Toy-
ota dealer.
■Vehicle functions and set-
tings that can be changed
 P.561
■Suspension of the settings dis-
play
●Some settings cannot be changed
while driving. When changing set-
tings, park the vehicle in a safe
place.
●If a warning message is displayed,
operation of the settings display
will be suspended.
Select to display warning mes-
sages and measures to be
taken if a malfunction is
detected. ( P.511)
WARNING
■Cautions during setting up
the display
If the hybrid system is operating
when changing the display set-
tings, ensure that the vehicle is
parked in a place with adequate
ventilation. In a closed area such
as a garage, exhaust gases
including harmful carbon monox-
ide (CO) may collect and enter
the vehicle. This may lead to
death or a seri ous health hazard.
NOTICE
■During setting up the display
To prevent 12-volt battery dis-
charge, ensure that the hybrid
system is operating while setting
up the display features.
Warning message display

169
Owners Manual_USA_M0C052_en
4
4
Driving
Driving
4-1. Before drivingDriving the vehicle....... 171
Cargo and luggage ..... 178
Vehicle load limits ....... 180
Trailer towing............... 181
Dinghy towing ............. 194
4-2. Driving procedures Power (ignition) switch 195
Automatic transmission 200
Turn signal lever.......... 204
Parking brake .............. 205
Brake Hold .................. 208
4-3. Operating the lights and wipers
Headlight switch .......... 211
Fog light switch ........... 214
AHB (Automatic High Beam)........................ 214
Light bar ...................... 218
Windshield wipers and washer....................... 218
4-4. Refueling Opening the fuel tank cap.................................. 2224-5. Using the dr
iving support
systems
Toyota Safety Sense 2.5 .................................. 225
PCS (Pre-Collision System) .................................. 230
LTA (Lane Tracing Assist) .................................. 242
RSA (Road Sign Assist) .................................. 253
Dynamic radar cruise con- trol with full-speed range
.................................. 256
BSM (Blind Spot Monitor) .................................. 267
Intuitive parking assist . 274
RCTA (Rear Cross Traffic Alert) .......................... 281
PKSB (Parking Support Brake) ........................ 287
Parking Support Brake func- tion (static objects) .... 292
Parking Support Brake func- tion (rear-crossing vehi-
cles) ........................... 295
Toyota parking assist moni- tor .............................. 297
Panoramic view monitor .................................. 310
Multi-terrain Monitor .... 344
Electronically modulated air suspension ................ 355

1824-1. Before driving
Owners Manual_USA_M0C052_en
■Trailer brake controller
 P. 3 8 0
■Before towing
Check that the following conditions
are met:
●Ensure that your vehicle’s tires
are properly inflated. ( P.547)
●Trailer tires are inflated according
to the trailer manufacturer’s rec-
ommendation.
●All trailer lights work as required
by law.
●All lights work each time you con-
nect 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 dri ve if the trailer
is not level, and check for
improper tongue weight, overload-
ing, worn suspension, or other
possible causes.
●The trailer cargo is securely
loaded.
●The rear view mirrors conform to
all applicable federal, state/provin-
cial or local regu lations. If they do
not, install rear view mirrors
appropriate for towing purposes.
Contact your Toyota dealer for
further information about addi-
tional requirements such as a
towing kit, etc.WARNING
■Trailer towing precautions
To tow a traile r safely, use
extreme care and drive the vehi-
cle in accordance with the trailer’s
characteristics and operating con-
ditions. Failure to do so could
cause an accident resulting in
death or serious injury. Vehicle
stability and brak ing performance
are affected by trailer stability,
brake setting and performance,
and the hitch. Your vehicle will
handle differently when towing a
trailer.
■To avoid accident or injury
●Do not exceed the TWR,
unbraked TWR, GCWR, GVWR
or GAWR.
●If the gross trailer weight is over
2000 lb. (900 kg), a sway con-
trol device with sufficient capac-
ity is required.
●If the gross trailer weight is over
5000 lb. (2200 kg), a weight dis-
tributing hitch with sufficient
capacity is required.
●Adjust the tongue weight within
the appropriate range. Place
heavier loads as close to the
trailer axle as possible.
●Do not exceed 65 mph (104
km/h), the posted towing speed
limit or the spee d limit for your
trailer as set forth in your trailer
owner’s manual, whichever is
lowest. Slow down sufficiently
before making a turn, in cross
winds, on wet or slippery sur-
face, etc., to hel p avoid an acci-
dent. If you experience a
vehicle-trailer instability from
reducing a certain speed, slow
down and make sure you keep
your vehicle speed under the
speed of which you experience
the instability.

1904-1. Before driving
Owners Manual_USA_M0C052_en
■Auto current cut-off function
In case of over current, the auto cut-
off function stops the power flowing
to the trailer lights to prevent dam-
age to the vehicle’s electrical sys-
tem.
This function is activated when the
rated current of any of the following
trailer light circuit components is
exceeded:
●Stop/turn signal light (right): maxi-
mum 5 A
●Stop/turn signal light (left): maxi-
mum 5 A
■When the auto current cut func-
tion is activated
If a trailer light d oes not come on
due to the activation of the auto cur-
rent cut function , the light system
will need to be reset.
Follow the reset procedure shown
below.
●If a tail light doe s not come on,
turn off the headlight switch.
●If the right-side stop/turn signal
light does not com e on, put the
turn signal in the off position or
remove foot from t he brake pedal.
●If the left-side stop/turn signal light
does not come on, put the turn
signal in the off position or remove
foot from the brake pedal.
If the emergency flashers do not
operate, press the emergency
flasher switch to turn them off.
After the light syst em is reset, oper-
ate the light switches again to see if the lights operate normally.
If the lights do not operate normally,
have the vehicle inspected by your
Toyota dealer.
■Trailer lights operation check
function
Use the meter control switches to
start the function. ( P. 9 6 )
1 Press or to select .
2 Press or to select “Trailer
Light Check”, and then press
.
3 Press to start the trailer light
check.
The light check operates in the cycle
of Brake lights  Left turn lights 
Right turn lights.
■The trailer light check is opera-
tional when
The trailer light check operates
when all of the fo llowing conditions
are met:
●The vehicle is stopped.
●The shift lever is shifted to P.
If a height control system is
installed in your vehicle, you
have to connect and disconnect
NOTICE
■Do not directly splice trailer
lights
Do not directly splice trailer lights.
Directly splicing trailer lights may
damage your vehicle’s electrical
system and cause a malfunction.
Connecting and discon-
necting a trailer (vehicles
with electronically modu-
lated air suspension)

1914-1. Before driving
Owners Manual_USA_M0C052_en
4
Driving
your trailer more carefully.
 Connecting
1 Set the height control of elec-
tronically modulated air sus-
pension system to “N” mode.
2 Turn off the hybrid system, or
set the electronically modu-
lated air suspension system
to manual mode. ( P.355)
3 Connect the trailer.
4 Restart the hybrid system.
5 Press the height control
mode select switch to cancel
the manual mode condition
that was set on step 2.
6 Check that the “MAN.” indica-
tor turns off. Set the height
control of electronically mod-
ulated air suspension sys-
tem to “N” mode.
 Disconnecting
1 Set the height control of elec-
tronically modulated air sus-
pension system to “N” mode.
2 Set the electronically modu-
lated air suspension system
to manual mode.
3 Turn off the hybrid system.
4 Set the supporting leg of the
trailer on the ground and
raise the hitch by 4 in. (100
mm).
5 Restart the hybrid system.
6 Press the height control
mode select switch to cancel
the manual mode condition that was set on step
2.
Check that the “MAN.” indica-
tor turns off.
7 Wait until vehicle height is
stabilized.
8 Make sure the hitch is dis-
connected. If the hitch does
not disconnect, raise the
hitch higher and repeat steps
2 through 7. Move the vehi-
cle forward in “LO” mode
where the hitch does not
touch anything in “N” mode.
Set the height control of elec-
tronically modulated air sus-
pension system to “N” mode.
Your vehicle will handle differ-
ently when towing a trailer. To
help avoid an accident, death or
serious injury, keep the following
in mind when towing:
 Speed limits for towing a
trailer vary by state or prov-
ince. Do not exceed the
posted towing speed limit.
 Toyota recommends that the
vehicle-trailer speed limit is 65
mph (104 km/h) on a flat,
straight, dry road. Do not
exceed this limit, the posted
towing speed limit or the
speed limit for your trailer as
set forth in your trailer owner’s
manual, whichever is lowest.
Instability of the towing vehi-
cle-trailer combination (trailer
Trailer towing tips

2314-5. Using the driving support systems
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4
Driving
■Emergency steering assist
If the system determines that
the possibility of a collision with
a pedestrian is high and that
there is sufficient space for the
vehicle to be steered into within
its lane, and the driver has
begun evasive maneuver or
steering, emergency steering
assist will assist the steering
movements to help enhance the
vehicle stability and for lane
departure prevention. During
operation, the indicator will illu-
minate in green.
■Intersection right/left turn
assistance
If the system determines that
there is a high possibility of a
collision in the following situa-
tions, it will assist with Pre-colli-
sion warning and, if necessary
Pre-collision braking.
Depending on the configuration
of the intersection, it may not be
possible to support.
 When you turn right/left at an
intersection and cross the
path of an oncoming vehicle 
When you turn right/left,
pedestrian is detected in the
forward direction and esti-
mated to enter your vehicle’s
path (bicyclists are not
detected.)
■Suspension control (vehi-
cles with Adaptive Variable
Suspension System)
When the system determines
that the possibility of a frontal
collision is high, the Adaptive
Variable Suspension System
( P.375) will control the damp-
ing force of the shock absorbers
to help maintain an appropriate
vehicle posture.