202 2-3. Operating the lights and wipers
4RUNNER_U
■Daytime running light system
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.
Type A and B: Daytime running lights can be turned off by operating the
switch.
■ Headlight control sensor (if equipped)
■ Automatic light off system
Vehicles without a smart key system
● When the headlights come on: The headlights and tail lights turn off 30
seconds 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
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 turned to the “ACC” or “LOCK” position and the
driver’s door is opened.
To turn the lights on again, turn the engine switch to the “ON” position, or
turn the lights off and then back to or .
The sensor may not function properly if
an object is placed on the sensor, or any-
thing 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.
CTH23AS012
216 2-4. Using other driving systems
4RUNNER_U
■Sensor detection information
● Certain vehicle conditions and the surrounding environment may affect
the ability of a sensor to correctly detect an obstacle. Particular instances
where this may occur are listed below.
• There is dirt, snow or ice on a sensor.
• A sensor is frozen.
• A 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
ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather
• A non-genuine Toyota suspension (lowered suspension etc.) is installed.
In addition to the examples above, there are instances in which, because of
their shape, signs and other objects may be judged by a sensor to be closer
than they are.
● The shape of the obstacle may prevent a 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
5
When trouble arises
563
5-1. Essential information
4RUNNER_U
Event data recorder
In a crash or near crash eventThe SRS airbag sensor assembly co ntains the EDR. In a crash or
near crash event, this device may record some or all of the following
information:
● Gasoline engine speed
● Whether the brake pedal was depressed or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver’s seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
● Front passenger’s occupant classification
The information above is intended to be used for the purpose of
improving vehicle safety performance. Unlike general data recorders,
the EDR does not record sound data such as conversation between
passengers.
Your vehicle has computers that monitor and control certain aspects
of your vehicle. These computers assi st in driving and maintaining
optimal vehicle performance.
Besides storing data useful for tr oubleshooting, there is an event
data recorder (EDR) that records data in a crash or near crash
event.
