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Home >> Oldsmobile >> 1999 >> LSS V6-3.8L SC VIN 1 >> Repair and Diagnosis >> Heating and Air Conditioning >> Control Assembly >> Description and Operation >> HVAC System - Automatic >> Control Assembly Description >> Temperature Button
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Temperature Button

The temperature control performs the following functions:
^ When the system is in the OFF mode, the system turns ON in the AUTO mode when the occupant of the vehicle turns the temperature knob in either direction.
^ When the system is in any mode except OFF, turning the temperature knob one detent performs one of the following actions
- If the temperature is 19°-29°C (66°-84°F), turning the detent knob in either direction increases/decreases the internal temperature setting by 1 degree.
- If the temperature is 18°C (65°F), turning the detent knob in a counterclockwise direction decreases the internal temperature setting to 16°C (60°F).
- If the temperature is 30°C (85°F), turning the detent knob in a clockwise direction increases the internal temperature setting to 32°C (90°F).

A change is the temperature setting signals the heater and A/C programmer to bring the passenger compartment temperature to the new setting. This is done by changing:
^ The blower speed
^ The air discharge location
^ The air discharge temperature