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Rear window defroster

Never use sharp instruments or window cleaners containing abrasives to clean the window to prevent damage to the rear window defroster.

The defroster heats the window to remove frost, fog and thin ice from the interior and exterior of the rear window, while the engine is running.

  • To activate it, press the rear window defroster button located in the center control panel. The indicator on the rear window defroster button illuminates when the defroster is ON.

    Type A
    2025 Hyundai Tucson Rear window defroster button image. This Type A button features a rectangular icon with three wavy upward arrows and an illuminated indicator light bar above it. A black arrow points upward to indicate the operation. Explains the function of pressing the button to activate the rear window defroster.

    2C_RearWindowDefrost

    Type B
    2025 Hyundai Tucson rear window defroster button Type B image. A large black arrow points upward to the defroster icon, which depicts three wavy arrows inside a rectangle with a light symbol above it. This describes the function of pressing the button to activate the rear window defroster and the indicator light turning on.

    2C_RearWindowDefrost_2

  • To turn if off, press the rear window defroster button again.

  • If there is heavy accumulation of snow on the rear window, brush it off before operating the rear defroster.

  • The rear window defroster automatically turns off after about 20 minutes or when the Engine Start/Stop button is in the OFF position.

Outside rearview mirror defroster

The outside rearview mirror defrosters operate when you turn on the rear window defroster.