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Home >> GMC >> 1987 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 34 (A/C-Heater System - Manual) >> Operation >> Mode Selector Lever/Dial >> "Defrost"

Mode Selector Lever/Dial: "Defrost"

WARNING: This page does not describe the selected car, but rather 38 other vehicles, including the 1987 Pontiac Sunbird, 1987 Pontiac Safari, 1987 Pontiac Grand Prix, 1987 Pontiac Grand Am, and 1987 Pontiac Firebird. However, it is still accessible from the selected car via links, so may be relevant.

In this position, conditioned air is distributed; about 80% to windshield and side windows and 20% to floor.

Fig 1: Typical General Motors Manual A/C Control Panel With Mode Selector Lever Some also have defroster button. Courtesy of General Motors Corp.
G16815
Fig 2: Typical General Motors Manual A/C Control Panel With Push Button Mode Selection Fiero shown. Other models are similar. Courtesy of General Motors Corp.
G17348
Fig 3: Typical Heater-A/C Module (All But "C" & "H" Bodies) Note relationship of various components. Courtesy of General Motors Corp.
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Fig 4: Typical Heater-A/C Module ("C" & "H" Bodies)
G50H07528Courtesy of GENERAL MOTORS CORP.
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