CHEVROLET 2009 Silverado - Manual (Page 28)

Climate Controls
For more information on the vehicle’s climate control
system, see “Climate Control System” in the owner
manual.
Electric Air Conditioning Compressor
This hybrid vehicle has a electrically powered air
conditioning compressor. This allows for continuous
air conditioning operation and passenger comfort,
even while the hybrid engine cycles on and off.
When operating the climate control system, select
the AUTO mode and the desired temperature setting.
The climate control system automatically adjusts the fan
speed and airflow direction. The climate control system
continues to adjust the climate control settings chosen
for best use of electrical power.
To get maximum engine off time during mild
temperatures, select a warmer temperature setting or
turn off the air conditioning to shut off the compressor.
During hot weather, it is recommended to keep the
air conditioning on with the windows closed. Continuous
air conditioning use can cause the engine to autostart
more frequently.
Some noise may be heard occasionally from the
compressor, especially when air conditioning use
is high and the engine has turned off.
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