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How Automobiles Work


[Upbeat music plays] Some Toyota vehicles are
equipped with a Stop and
Start engine system to help reduce emissions
and enhance fuel economy. The Stop and Start engine
system can automatically
shut off the engine when the vehicle
comes to a stop, such as at a stop sign
or traffic light when
the brake pedal is depressed. When the driver lifts
their foot off the brake pedal, the engine automatically
restarts without requiring
any action by the driver. It’s important to note that
the engine will not shut off
every time the vehicle
is stopped. The Start Stop system first
analyzes more than 40 different
operating parameters to determine if it’s an
appropriate time to
stop the engine. Your engine’s power might
be required for a broad range
of other vehicle functions such as heating or cooling
the vehicle, for example. There are many operating
conditions necessary for the
Stop and Start system to
activate and these include but are
not limited to the following: The Shift lever is
in ‘D’ or drive… the engine is adequately
warmed up… the outside temperature
is at or above -5°C… the brake pedal is
depressed firmly… the accelerator pedal
is not depressed… the hood and driver’s
door are closed… the driver’s seatbelt
is fastened.. and the windshield
defroster is off. The Stop and Start system
may not always shut off the
engine under certain conditions, such as – when Power mode
or Snow mode is selected, the steering wheel is being
turned or when driving
at high altitude. To alert the driver, a Stop and
Start indicator light in the
multi-information display (MID) or combination meter
comes on when the
engine shuts off. The engine restarts the
moment the brake pedal
is released. The Stop and Start indicator
light goes off when the
engine restarts. If the driver wishes, the Stop
and Start system may be disabled by pressing the Stop and
Start cancel switch; pressing the switch again
reactivates the system. When the system is disabled,
a Stop and Start cancel
indicator light comes on; it goes off when the
system is reactivated. Even if the Stop and Start
system is turned off using
the cancel switch, it is automatically enabled
when the engine switch
is turned off and the engine
is started again. In vehicles with Hill Start
Assist Control, if the engine is stopped by
the Stop and Start system, brake force is temporarily
maintained to prevent it
rolling backwards, until the engine is restarted
and drive force is
generated again. At that point the brake
force is automatically
released. This function operates on
flat surfaces as well as
steep inclines. When the Hill Start Assist
Control system is operating,
some sound may be heard
from the brakes, the brake pedal response
may change and some
vibration may occur. These are not malfunctions
but normal system operation. If the hood is opened while
the engine is stopped by
the Stop & Start system, the engine will not
restart automatically. It may be restarted using
the normal starting procedure, but the Stop and Start system
will not operate until the
hood is closed and the engine switch
is turned off for at least
30 seconds before restarting. Details of the Stop and
Start system’s operation such as the current or total
time the engine has been
shut off by the system can be displayed on the
MID screen by pressing the
Stop & Start cancel switch, and the timer for the
display can be reset. It should be noted that when
the engine is restarted by
the Stop and Start system, the power outlets may
be temporarily unusable;
this is not a malfunction. The features and functions
described in this video might
not be applicable to
your Toyota model. See your Owner’s Manual
for details. Thanks for
watching this Know Your
Toyota video. [Upbeat music fades to silence]

13 thoughts on “Know Your Toyota – Stop and Start Engine System

  1. Here is a video showing a device I made that disables it each time you start the vehicle.
    You can simply press the button if you want to turn it back on. But this disables it by default each time you start the vehicle 🙂
    https://youtu.be/SUNOB8OuLF4

  2. That's right, wear out that starter. It don't help the starter is placed in a very difficult location in the engine….

  3. So say I've stopped at a red light and I'm pressing down the brake pedal, the engine will turn off and turn back on when I release the brake pedal. What if I put the car in neutral and then take my foot off the brake pedal?

  4. Reputable and qualified mechanics will advise you to keep this feature off due to the added and mostly unnecessary wear and tear on the engine caused by frequent stops and starts of the the complex elements of today's internal combustion engines.

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