high beam TOYOTA TUNDRA 2020 Owners Manual (in English)

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4-1. Before drivingDriving the vehicle ............. 184
Cargo and luggage............ 192
Vehicle load limits ............. 195
Trailer towing..................... 197
Dinghy towing.................... 216
4-2. Driving procedures Engine (ignition) switch (vehicles without
a smart key system) ........ 217
Engine (ignition) switch (vehicles with a smart
key system) ..................... 219
Automatic transmission ..... 225
Turn signal lever................ 232
Parking brake .................... 233
4-3. Operating the lights and wipers
Headlight switch ................ 234
Automatic High Beam ....... 239
Fog light switch ................. 244
Windshield wipers and washer ............................ 245
4-4. Refueling Opening the fuel tank cap .................................. 248 4-5. Using the driving support
systems
Toyota Safety Sense P ...... 252
PCS (Pre-Collision System) ........................... 259
LDA (Lane Departure Alert) ................................ 272
Dynamic radar cruise control.............................. 280
Cruise control .................... 294
Intuitive parking assist ....... 298
BSM (Blind Spot Monitor)......... 305
Four-wheel drive system ... 315
AUTO LSD system ............ 318
Driving assist systems ....... 320
Trailer brake controller....... 327
4-6. Driving tips Winter driving tips .............. 331
Off-road precautions .......... 335
4Driving

22Pictorial index
■Switches
The illustration represents the instrument panel for the front separated type
seat.Driving position memory switches
*1. . . . . . . . . . . . . . . . . . P. 153
Power window switches
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Door lock switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 130
Window lock switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 172
Outside rear view mirror switches
*1 . . . . . . . . . . . . . . . . . . P. 167
Personal/interior lights main switch . . . . . . . . . . . . . . . . . . P. 357
Cargo lamp main switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 359
Manual headlight leveling dial . . . . . . . . . . . . . . . . . . . . . . . P. 236
Automatic High Beam switch
*1 . . . . . . . . . . . . . . . . . . . . . . P. 239
Power back window switch
*2. . . . . . . . . . . . . . . . . . . . . . . . P. 176
TOW/HAUL switch
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 228
Trailer brake controller
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 327
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1022. Instrument cluster
*1: These lights turn on when the engine switch is turned to ON to indicate thata system check is being performed. They will turn off after the engine is
started, or after a few seconds. There may be a malfunction in a system if
the lights do not come on, or if the lights do not turn off. Ha ve the vehicle
inspected by your Toyota dealer for details.
*2: The light comes on to indicate a malfunction.
*3: The light flashes to indicate a malfunction.
*4: The light illuminates on the multi-information display.
*5: If equipped
The indicators inform the driver of the operating state of the vehicle’s
various systems.
*4
Low windshield washer
fluid warning light
( P. 493)
*4
Brake Override System/
Drive-Start Control warn-
ing light ( P. 494, 497)
*4
Low fuel level warning
light (P. 493)
*4, 5
Automatic High Beam
indicator ( P. 497)
Indicators
Turn signal indicator
(P. 232)*9Automatic High Beam
indicator ( P. 239)
(U.S.A.)
Headlight indicator
(P. 234)*1
(U.S.A.)
Parking brake indicator
(P. 233)
(Canada)
Tail light indicator
(P. 234)*1
(Canada)
Parking brake indicator
(P. 233)
Headlight high beam
indicator ( P. 235)
*6, 9
Cruise control indicator
(P. 289, 294)

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4Driving
4-1. Before drivingDriving the vehicle ............. 184
Cargo and luggage ........... 192
Vehicle load limits ............. 195
Trailer towing..................... 197
Dinghy towing ................... 216
4-2. Driving procedures Engine (ignition) switch(vehicles without
a smart key system) ........ 217
Engine (ignition) switch (vehicles with
a smart key system) ........ 219
Automatic transmission ..... 225
Turn signal lever................ 232
Parking brake .................... 233
4-3. Operating the lights and wipers
Headlight switch ................ 234
Automatic High Beam ....... 239
Fog light switch ................. 244
Windshield wipers and washer ............................ 245
4-4. Refueling Opening the fuel tank cap .................................. 248 4-5. Using the driving support
systems
Toyota Safety Sense P ..... 252
PCS (Pre-Collision System)........................... 259
LDA (Lane Departure Alert) ............................... 272
Dynamic radar cruise control ............................. 280
Cruise control .................... 294
Intuitive parking assist....... 298
BSM (Blind Spot Monitor) ........ 305
Four-wheel drive system ... 315
AUTO LSD system............ 318
Driving assist systems ...... 320
Trailer brake controller ...... 327
4-6. Driving tips Winter driving tips ............. 331
Off-road precautions ......... 335

2354-3. Operating the lights and wipers
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Driving
For Canada
The headlights, daytime
running lights
( P. 237) and all the
lights listed above turn
on and off automatically.
(When the engine
switch is in ON.)
The side marker, park-
ing, tail, license plate,
instrument panel lights,
and daytime running
lights ( P. 237) turn on.
The headlights and all
lights listed above
(except daytime run-
ning lights) turn on.
With the headlights on, push
the lever away from you to turn
on the high beams.
Pull the lever toward you to the
center position to turn the high
beams off.
Pull the lever toward you and
release it to flash the high
beams once.
You can flash the high beams with the headlights on or off.
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Turning on the high beam headlights
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2394-3. Operating the lights and wipers
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Driving
Automatic High Beam
Push the lever away from you
with the headlight switch in the
or position.
Press the Automatic High
Beam switch.
The Automatic High Beam indica-
tor will come on when the head-
lights are turned on automatically
to indicate that the system is
active.
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to
assess the brightness of streetl ights, the lights of vehicles
ahead etc., and automatically turns the high beam on or off as
necessary.
WARNING
■ Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, ta king care to
observe your surroundings and turning the high beam on or off m anually if
necessary.
■ To prevent incorrect operation o f the Automatic High Beam syste m
Do not overload the vehicle.
Activating the Automatic High Beam system
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2404-3. Operating the lights and wipers
■Switching to low beam
Pull the lever to the original
position.
The Automatic High Beam indi-
cator will turn off.
Push the lever away from you to
activate the Automatic High
Beam system again.
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Switching to high beam
Press the Automatic High
Beam switch.
The Automatic High Beam indi-
cator will turn off and the high
beam indicator will turn on.
Press the switch to activate the
Automatic High Beam system
again.
Turning the high beam on/off manually

2414-3. Operating the lights and wipers
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Driving
■High beam automatic turning on or off conditions
●When all of the following conditions are fulfilled, the high be am will be auto-
matically turned on (after approximately 1 second):
• Vehicle speed is above approximately 21 mph (34 km/h).
• The area ahead of the vehicle is dark.
• There are no vehicles ahead with headlights or tail lights turned on.
• There are few streetlights on the road ahead.
● If any of the following conditions are fulfilled, the high beam will be automat-
ically turned off:
• Vehicle speed drops below approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• Vehicles ahead have headlights or tail lights turned on.
• There are many streetlights on the road ahead.
■ Camera sensor detection information
●The high beam may not be automatically turned off in the following situa-
tions:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut off in front of by another vehicle
• When vehicles ahead are hidden from sight due to repeated curv es, road
dividers or roadside trees
• When vehicles ahead appear from the faraway lane on wide road
• When vehicles ahead have no lights
● The high beam may be turned off if a vehicle ahead that is usin g fog lights
without using the headlights is detected.
● House lights, street lights, traffic signals, and illuminated billboards or signs
may cause the high beam to switch to the low beams, or the low beams to
remain on.
● The following factors may affect the amount of time taken to tu rn the high
beam on or off:
• The brightness of headlights, fog lights, and tail lights of v ehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the r oad surface,
etc.)
• The number of passengers and amount of luggage

2424-3. Operating the lights and wipers
●The high beam may be turned on or off when the driver does not expect it.
● Bicycles or similar objects may not be detected.
● In the situations shown below, the system may not be able to accurately
detect surrounding brightness levels. This may cause the low be ams to
remain on or the high beams to cause problems for pedestrians, vehicles
ahead or other parties. In these cases, manually switch between the high
and low beams.
• In bad weather (rain, snow, fog, sandstorms, etc.)
• The windshield is obscured by fog, mist, ice, dirt, etc.
• The windshield is cracked or damaged.
• The camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights , tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, d irty, are
changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks, etc.).
• When frequently and repeatedly taking curves or driving on a w inding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly reflective, such as a co ntainer on a
truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched betwe en in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.

2434-3. Operating the lights and wipers
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Driving
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are m et.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to ON.
Within 30 seconds after , repeat pulling the headlight switch lever to the
original position then pushing it to the high beam position qui ckly 10 times,
then leave the lever in high beam position.
If the sensitivity is changed, the Automatic High Beam indicato r is turn on
and off 3 times.
Automatic High Beam (headlights) may turn on even the vehicle i s stopped.
■ If “Headlight System Malfunction. Visit Your Dealer.” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
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