Acura 2007 RL Owner's Manual page 186

Seat Heaters and Seat Ventilation (Canadian models)
To ventilate the seat, press the
button. The indicator (green) next to
the button will come on. The air
ventilation system has four settings:
HI Three indicators on.
MID Two indicators on.
LO One indicator on.
OFF All indicators off.
When you press the button once,
the system is set to HI. To change to
the lower mode, press the
To turn the air ventilation off, press
the button until the indicators go
off.
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Follow these precautions whenever
you use the seat heaters and the seat
ventilation:
Use the HI setting only to heat or
to ventilate the seats quickly,
because it draws large amounts of
current from the battery.
If the engine is left idling for an
extended period, do not use the
seat heaters or the seat ventilation,
button. even on the LO setting. It can
weaken the battery, causing hard
starting.