Surprised I missed your posting. The aftermarket tails may be designed to run off the draw of standard incandescent bulbs. There’s a two part product I’ve purchased 1/2 of for my 09. I got the Autosync portion but if you purchase the BCM tune portion you can change which daytime running lights come on as well as resolving the hyperflash issue.
The majority of the 2015 & 2017 only features on the Autosync options work on the Esky Plat/Prem trim with the >12 SD card Navi & later Gen OnStar VCIM.
Need a source for a painted, color matched hitch cover mailed from the painter? Also, if your oem tails and brake light need a new home, shoot me a PM so I can help you offset the cost of the new ones. My tails could use a little dressing up.
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