Front Defogger Mode

1985 Cadillac Fleetwood Base, 4D LimousineSECTION Front Defogger Mode

Defogger outlets with bleed to heater outlets. This mode is not allowed to remain after the key is turned off. The system will switch to the "AUTO" selection if "FRONT DEFOG" was previously active. If the operator selects "FRONT DEFOG" while the outside temperature is below 25Β°F (-4Β°C), the BCM will limit the blower to 7 volts until the coolant has been above 110Β°F (43Β°C) for 3 minutes. This low blower voltage reduces the possibility of snow entering through the air inlet.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.