2020 TOYOTA TUNDRA low beam

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)

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.
■
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
4
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
4
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.
1
2
32
4

2444-3. Operating the lights and wipers
Fog light switch
(U.S.A.) or (Canada)
Turns the front fog lights
off
Turns the front fog lights
on
■Fog lights can be used when
The parking lights are on or the headlights are on in low beam.
: If equipped
The fog lights secure excellent visibility in difficult driving con-
ditions, such as in rain and fog.
1
2

2524-5. Using the driving support systems
Toyota Safety Sense P
◆PCS (Pre-Collision System)
P. 2 5 9
◆LDA (Lane Departure Alert)
P. 2 7 2
◆Automatic High Beam
P. 2 3 9
◆Dynamic radar cruise control
P. 2 8 0
: If equipped
The Toyota Safety Sense P consists of the following drive assis t
systems and contributes to a safe and comfortable driving expe-
rience:
WARNING
■ Toyota Safety Sense P
The Toyota Safety Sense P is designed to operate under the assu mption
that the driver will drive safely, and is designed to help redu ce the impact to
the occupants and the vehicle in the case of a collision or ass ist the driver in
normal driving conditions.
As there is a limit to the degree of recognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicl e’s surround-
ings and driving safely.

2784-5. Using the driving support systems
■Conditions in which function s may not operate properly
In the following situations, the camera sensor may not detect w hite (yellow)
lines and various functions may not operate normally.
● There are shadows on the road that run parallel with, or cover, the white
(yellow) lines.
● The vehicle is driven in an area without white (yellow) lines, such as in front
of a tollgate or checkpoint, or at an intersection, etc.
● The white (yellow) lines are cracked, “Botts’ dots”, “Raised pa vement
marker” or stones are present.
● The white (yellow) lines cannot be seen or are difficult to see due to sand,
etc.
● The vehicle is driven on a road surface that is wet due to rain , puddles, etc.
● The traffic lines are yellow (which may be more difficult to re cognize than
lines that are white).
● The white (yellow) lines cross over a curb, etc.
● The vehicle is driven on a bright surface, such as concrete.
● The vehicle is driven on a surface that is bright due to reflec ted light, etc.
● The vehicle is driven in an area where the brightness changes s uddenly,
such as at the entrances and exits of tunnels, etc.
● Light from the headlights of an oncoming vehicle, the sun, etc. , enters the
camera.
● The vehicle is driven where the road diverges, merges, etc.
● The vehicle is driven on a slope.
● The vehicle is driven on a road which tilts left or right, or a winding road.
● The vehicle is driven on an unpaved or rough road.
● The vehicle is driven around a sharp curve.
● The traffic lane is excessively narrow or wide.
● The vehicle is extremely tilted due to carrying heavy luggage or having
improper tire pressure.
● The distance to the preceding vehicle is extremely short.
● The vehicle is moving up and down a large amount due to road co nditions
during driving (poor roads or road seams).
● The headlight lenses are dirty and emit a faint amount of light at night, or the
beam axis has deviated.
● The vehicle has just changed lanes or crossed an intersection.