Toyota Prius 2010 Repair Manual page 368

SYSTEM DESCRIPTION
1. GENERAL
(a) The solar ventilation system ventilates the cabin when the vehicle is parked in an extremely hot
environment. Ventilation is provided by the system operating the blower motor using electricity generated by
the moon roof glass assembly (solar panel) installed on the roof.
HINT:
The solar ventilation system may operates even when not all conditions of the following table are met. Meeting
all conditions of the following System Operation Condition Reference Table is necessary to obtain precise
inspection results.
System Operation Conditions Reference Table
Item
Amount of sunlight
Moon roof glass assembly (solar
panel) status
Ambient temperature
Shortly after the solar ventilation system has been activated, it may stop the blower motor if the sunlight is not
sufficient even when the rest of the system operation conditions reference table are met.
(b) Activation Control
(1) When the solar ventilation switch is turned on while the power switch is on (IG):
The inlets will be changed to fresh air mode and the outlets will be changed to face mode approximately 1
minute after the power switch is turned off. In addition, the blower motor will be activated and start ventilating
the cabin approximately 10 minutes after the power switch is turned off.
HINT:
In order to enhance ventilation efficiency, the inlets will be changed to fresh air mode and the outlets will be
changed to face mode automatically when the solar ventilation switch is turned on while the power switch is on
(IG).
(2) When the solar ventilation switch is turned on after the power switch is turned off:
The blower motor will be activated and start ventilating the cabin approximately 10 minutes after the solar
ventilation switch is turned on.
HINT:
2010 Toyota Prius
A sufficient amount of sunlight is received by the moon roof glass assembly
(solar panel).
(The amount of sunlight on a cloudless day between 11:00 and 14:00 is
typically sufficient for operation.)
The moon roof glass assembly (solar panel) is not in the shade
No fallen leaves or dirt is present on the moon roof glass assembly (solar
panel)
20 to 40°C (68 to 104°F)
Condition
Repair Manual