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Battery Disconnect Needed When Flat Towing a 2017 GMC Sierra 1500


What should I use for disconnecting the battery in a 2017 GMC Sierra 1500 when flat towing Thanks


Helpful Expert Reply:

The battery disconnect that you should use when flat towing your 2017 GMC Sierra 1500 is the Roadmaster # RM-766.

If you don't already have a wiring kit installed on your pickup then I also recommend installing the Flexo-Coil Wiring Kit # RM-15267 and the connecting the charge line kit # RM-156-25 from the center pin of the 6-Way connector to your battery so that your battery won't drain while flat towing.

I have attached some sample installation videos for you to reference.

For a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you do not have all of these components just let me know and I can make some additional recommendations for you.

helpful expert reply by:
Jon G

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