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  1. #1

    Default Flasher relay problem 06 gmc sierra

    We just installed new towing mirrors with the flasher arrow to replace the factory units that also had the flasher arrow. Installed as a plug and play, no issues until I turned the signal on it flashed fast. It eventually seemed to be burning out the relay. The truck has LED lights all around but never had an issue until the new install. Do I need a different flasher relay. It doesnt make any sense to not have any problems until the new mirrors. Please help

  2. #2

    Default

    Yes, you need what is called a Lighting Control Module. For your 06 GMC Sierra you need a Tridon LM487. You can buy them from Advance Auto Parts. The factory LCM is not LED compatible but the LM487 is.

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