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  1. 2003 Avalanche Z66 - turn signals light up ALL the brake lights??? Electrical issue.

    Chevy Avalanche Forum (Escalade EXT)
    My '03 Z66 just recently started something new. Whenever I had the turn signals on, and I depressed the brake pedal, the flasher would stop flashing. In either direction. Today I confirmed that when I have the turn signals on, all my brake lights, including the third brake light, are flashing...