2015 TOYOTA TUNDRA brake sensor

1904-3. Operating the lights and wipers
■Daytime running light system (if equipped)
●To make your vehicle more visible to other drivers, the daytime running
lights turn on automatically whenever the engine is started and the parking
brake is released. Daytime running lights are not designed for use at night.
● Compared to turning on the headlights, the daytime running light system
offers greater durability and consumes less electricity, so it can help improve
fuel economy.
■ Headlight control sensor (vehicl es with automatic headlight system)
■ Automatic light off system
●When the headlights come on: The headlights and tail lights turn off 30 sec-
onds after a door is opened and closed if the engine switch is turned to the
“ACC” or “LOCK” position. (The lights turn off immediately if the button
on the key is pressed after all the doors are locked.)
● When only the tail lights come on: The tail lights turn off automatically if the
engine switch is tuned to the “ACC” or “LOCK” position and the driver’s door
is opened.
Vehicles with automatic headlight system: If any of the doors is kept open, the
lights automatically turn off after 20 minutes.
To turn the lights on again, turn the engine switch to the “ON” position, or turn
the light switch off once and then back to or .
■ Light reminder buzzer
A buzzer sounds when the key is removed from the engine switch and the
driver’s door is opened while the lights are turned on.
■ Customization that can be co nfigured at Toyota dealer
Settings (automatic light off system) can be changed.
(Customizable features: P. 534)
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
NOTICE
■
To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not
running.

2054-5. Using the driving support systems
4
Driving
■The intuitive parking assist can be operated when
●Front corner sensors:
• The engine switch is in the “ON” position.
• The shift lever is in R.
• The shift lever is not in P or R and vehicle speed is less than about 6 mph
(10 km/h).
● Rear corner and rear center sensors:
• The engine switch is in the “ON” position.
• The shift lever is in R.
■ Sensor detection information
●The sensor’s detection areas are limited to the areas around the vehicle’s
front corner and rear bumpers.
● Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where
this may occur are listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve
this problem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing ultra-
sonic waves.
• There is another vehicle equipped with parking assist sensors in the
vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Toyota suspension (lowered suspension, etc.) is installed.
• People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of
their shape, signs and other objects may be judged by the sensor to be closer
than they are.

2064-5. Using the driving support systems
●The shape of the obstacle may prevent the sensor from detecting it. Pay
particular attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of
your vehicle
● The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection
distance may shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at slow speeds, there is a possibility that the obstacle will come within the
sensor’s detection areas before the display is shown and the warning
beep sounds.
• Thin posts or objects lower than the sensor may not be detected for colli- sion when approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of audio system or air flow noise of air conditioning system.
■ If the display flashes and a message is displayed
P. 472, 474
■ Certification (Canada only)
This ISM device complies with Canadian ICES-001.
CAUTION
■When using the intuitive parking assist
Observe the following precautions.
Failure to do so may result in the vehicle being unable to be driven safely
and possibly cause an accident.
● Do not use the sensor at speeds in excess of 6 mph (10 km/h).
● The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially
the sides of the vehicle) for safety, and drive slowly, using the brake to
control the vehicle’s speed.
● Do not install accessories within the sensors’ detection areas.

2394-5. Using the driving support systems
4
Driving
While driving 20 - 25 mph [35 - 40 km/h], fully apply the manual
TRAILER BRAKE OUTPUT
slider.
Adjust the gain settin g, using the GAIN (+/-) selection buttons, to
either increase or decrease to just below the point of trailer wheel
lock-up.
For confirmation, repeat steps 6 and 7 until desired gain setting is
reached (just below point of trailer wheel lock-up).
■ When using the trailer brake control system
Please turn off the intuitive parking assist while towing a trailer. If left on,
sonar sensors will detect the trailer being towed.
■ When setting the gain
Wheel lock-up occurs when the trailer wheel squeals or tire smoke occurs.
Trailer wheels may not lock-up while driving heavily loaded trailer. During this
case, adjust the Trailer gain to the highest allowable setting for the towing
condition.
■ When disconnecting and reco nnecting battery terminals
The gain setting data will be reset.
CAUTION
■ Trailer brake type setting
It is the responsibility of the driver to make sure the trailer brakes are func-
tioning normally and adjusted appropriately. Failure to check and maintain
trailer brakes may result in loss of vehicle control, crash, or serious injury.
Trailer brake control system will work with most electric and electric-over-
hydraulic trailer braking systems up to 3 axles (24A output to trailer brakes).
Please be sure to test compatibility with the system at low speeds and in a
safe area.
Some electric-over-hydraulic trailer brakes will take some minimum output
to activate. Trailer brake control system will not work with trailer hydraulic
surge brakes.
■ When driving on slippery road surfaces
When stopping with ABS activated, output to the trailer might be reduced\
in
order to reduce the likelihood of trailer to sway or trailer wheels to lock. The
trailer is not equipped with ABS. Drive safely on slippery road surfaces.
6
7
8

563What to do if... (Troubleshooting)
●It is locked to prevent theft of the vehicle if the key is removed from the
engine switch. (P. 180)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 134)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 466)
●The parking brake indicator is on
Is the parking brake released? (P. 187)
Depending on the situation, other types of warning buzzer may also sound.
( P. 465, 472)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 80)
To stop the alarm, turn the engine switch to the “ACC” or “ON” position, or
start the engine.
●When a warning light turns on or a warning message is displayed, refer to
P. 465, 472.
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning light turns on or a warning message is displayed

571Alphabetical index
Noise from under vehicle............ 8
Odometer.................................... 90
Off-road precautions ............... 244
Oil Engine oil .............................. 512
Differential oil ........................ 515
Transfer oil ............................ 516
Opener
Hood ..................................... 405
Outer foot lights Location ................................ 353
Replacing light bulbs............. 451
Wattage ................................ 519
Outside rear view mirrors ....... 130
Adjusting and folding ............ 130
Blind spot monitor ................. 217
Mirror position memory ......... 116
Outside rear view mirror defoggers ......... 338, 345
Outside temperature
display .................................... 376
Overhead console ................... 365
Overheating.............................. 497
Parking assist sensors (intuitive parking assist) ....... 202
Parking brake ........................... 187 Operation .............................. 187
Parking brake engaged
warning buzzer ................... 465
Parking brake engaged
warning message ............... 473
Parking lights ........................... 188 Light switch ........................... 188
Replacing light bulbs..... 443, 451
Wattage ................................ 519
Pen holder ................................ 363
Personal lights ......................... 354
Light switch ........................... 354 Wattage ................................ 519
Power back window ................ 138
Power easy access system .... 116
Power outlets ........................... 377
Power steering fluid ................ 412
Power windows ....................... 134 Jam protection function ........ 135
Operation .............................. 134
Window lock switch .............. 134
Radiator .................................... 411
Radio ........................................ 267
Rear personal lights ................ 354
Rear seat Adjustment precautions ........ 115
Child seats/child restraint
system installation ................ 60
Cleaning ............................... 394
Head restraints ..................... 120
Raising the bottom cushion ............................... 114
Rear side marker lights........... 188 Light switch ........................... 188
Replacing light bulbs ............ 449
Wattage ................................ 519
Rear step bumper .................... 110
Rear turn signal lights ............ 186 Replacing light bulbs ............ 449
Turn signal lever ................... 186
Wattage ................................ 519
Rear view mirror Inside rear view mirror .......... 127
Outside rear view mirrors ..... 130
Rear view monitor system ...... 208
Refueling .................................. 195 Capacity................................ 511
Fuel types ............................. 511
Opening the fuel tank cap..... 197
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