Power Output Restriction; Electromagnetic Waves (Emf); Traction Battery - Toyota Mirai 2017 Owner's Manual

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2. Fuel cell vehicle
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Power output restriction

When the power output is restricted, the vehicle may fail to accelerate or even
decelerate, even though the accelerator pedal is depressed. If a safe driving
speed cannot be maintained, stop the vehicle in a safe place away from the
traffic. This may be caused by the following conditions:
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The coolant temperature may be too high. This can be caused by driving
conditions such as repeated sudden acceleration and deceleration, continu-
ous driving on an incline, continuous driving at high altitudes with a high
load, etc. In such situations, the power output restriction indicator (amber) is
displayed on the main display, "High FC Temperature Reduced Power" is
displayed on the multi-information display, and the power output is
restricted. Once the coolant returns to normal temperature, the power out-
put will return to normal. (→P. 377)
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The remaining fuel may be low. After the low fuel warning indicator comes
on, the output power will be gradually restricted in order to extend the possi-
ble driving distance. Once getting to this point, the remaining driving dis-
tance possible is short. Immediately refill the vehicle with hydrogen.
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On cold days, the low fuel warning indicator comes on faster than usual and
the output power is restricted.
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Vehicle proximity notification system
In the following cases, the vehicle proximity notification system may be diffi-
cult to hear for people around.
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In very noisy areas
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In wind or rain
Also, because the vehicle proximity notification system is located in the front
of the vehicle, it may be more difficult to hear from the rear of the vehicle
compared to the front.
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Electromagnetic waves (EMF)

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High-voltage parts and cables in fuel cell vehicles have an electromagnetic
shielding configuration, and therefore emit approximately the same amount
of electromagnetic waves as conventional gasoline-powered vehicles or
home electronic appliances.
●
Your vehicle may cause sound interference in some third party-produced
radio parts.
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Traction battery

The traction battery has a limited service life. The lifespan of the traction bat-
tery can change according to driving style and driving conditions.