Chevrolet 2011 HHR Owner's Manual page 41

If available, the buttons
are on the climate control
panel.
I n f o r ma t i o n P r o v i d e d b y :
Press the button once to turn on the heated seat at the
high setting. Both lights below the heated seat symbol
turn on. Press the button a second time to change to
the low setting. Only the bottom light is on when the low
setting is selected. Press the button a third time to turn
the heated seat off.
The heated seats are canceled when the ignition is
turned off. Press the button to use the heated seats
after the vehicle is re started.
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