2001 GMC Sonoma Owner's Manual - Page 156

2001 GMC Sonoma Manual

Page 156 highlights

BI-LEVEL A/C: This setting cools the air entering your vehicle and directs it through the heater floor outlets as well as the instrument panel outlets. VENT: This setting directs most of the air through the instrument panel outlets and a small amount through the floor outlets. The air conditioning compressor is not working when VENT is selected. HEATER: This setting directs most of the warmed air through the heater floor outlets and some air through the windshield defroster outlets. BLEND: Airflow is divided equally between the heater floor outlet and the windshield defroster outlets. DEFROST: This setting directs most air through the windshield defroster outlets and some through the heater outlets. Air Conditioning (If Equipped) On hot days, open the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. For quick cool-down on very hot days, use MAX A/C with the temperature knob turned counterclockwise. This setting should be used to keep odors and/or dust from entering the vehicle. For normal cooling on hot days, use A/C with the temperature knob turned counterclockwise. On cool but sunny days, use BI-LEVEL A/C to deliver warm air to the floor and cooler air to the instrument panel outlets. If you have the VORTEC 4300 V6 engine, when the air conditioner is on, you may sometimes notice slight changes in your vehicle's engine speed and power. This is normal because the system is designed to cycle the compressor on and off to keep the desired temperature. 3-4

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