Acura 2006 RL Owner's Manual page 178

Seat Heaters (U.S. models)
SEAT HEATER SWITCHES
Both front seats are equipped with
seat heaters. The passenger seat
only has heaters in the seat bottom
because of the side airbag system.
The ignition switch must be in the
ON (II) position to use the heaters.
Push the top of the switch, HI, to
rapidly heat up the seat. After the
seat reaches a comfortable
temperature, select LO by pushing
the bottom of the switch. This will
keep the seat warm.
174
In HI, the heater turns off when the
seat gets warm, and turns back on
after the seat temperature drops.
In LO, the heater runs continuously.
It does not cycle with temperature
changes.
Follow these precautions whenever
you use the seat heaters:
Use the HI setting only to heat 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, even on the LO
setting. It can weaken the battery,
causing hard starting.