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acker1's avatar
acker1
Explorer
Oct 02, 2017

Electric steering & towing

2107 GMC Sierra 4X4 Crew Cab--I am all set up for towing but have a question. When I disconnect the battery I will lose my settings. I found a thingy that plugs into my OBDII port and other end connects to an outside battery source. That will keep my setting BUT will it affect the electric steering?

Thanks
DICK

12 Replies

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  • sch911's avatar
    sch911
    Explorer
    Oct 02, 2017
    Yes a vehicle having EPS has introduced a new wrinkle into the Dingy towing scene. Some vehicles with it have needed modifications to the wiring and steering system to insure the steering wheel turns freely when under tow.

    Pay close attention to the OM, and follow the instructions carefully for your vehicle.
  • jerseyjim's avatar
    jerseyjim
    Explorer
    Oct 02, 2017
    What does your owners' manual say? Towing 4 down usually requires pulling a fuse...not disconnecting the battery.

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