Oldsmobile 2001 Silhouette - Manual (Page 215)

3-4
When the air conditioner compressor is on, you may
sometimes notice slight changes in your vehicle’s engine
performance and power. This is normal. The system is
designed to help fuel economy while it maintains the
desired cooling level.
The air conditioner removes moisture from the air,
so you may sometimes notice water dripping from
under your vehicle’s engine compartment when it is
idling or after it has been turned off. This is normal.
Heating
Turn the temperature knob clockwise (toward the
red area) to warm the air.
In the LOWER setting, outside air will be brought in
and sent through the floor outlets. The heater works
best if you keep your windows closed while using it.
The BI - LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm your
upper body, but your lower body may not be warm
enough. For the best results, turn the temperature knob
to the middle position, and then adjust it for comfort.
Your vehicle has a computer controlled transaxle
designed to warm up the engine faster when the outside
temperature is 35
_F (2_C) or colder. You may notice
that the transaxle will shift at a higher vehicle speed
until the engine is warmed up. This is a normal
condition designed to provide heat to the passenger’s
compartment and defrost the windows more quickly.
If you have the optional engine coolant heater and use
it during cold weather, 0
_F ( - 18
_C) or lower, your
heating system will provide heat more quickly because
the engine coolant is already warmed. See “Engine
Coolant Heater” in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, turn the temperature
knob all the way clockwise (to the red area) and turn
the mode knob to DEFROST. Adjust the fan to the
highest speed.
To keep the windshield clear and bring in heated air through
the heater ducts, turn the mode knob to DEFOG.
When the temperature outside is above freezing, the air
conditioner compressor will run in these settings to help
remove moisture from the air.