2018 Sierra Auto stop

RaggedConverge

Joined: Dec 27, 2017

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12:34p, 3/21/25

AG

Is there a way to turn off the auto stop function on a 2018 GMC Sierra 1500? I've looked for a button or something in the settings, but that appears to only be on newer models. Any help would be appreciated.

redaszag99

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1:32p, 3/24/25

See if it turns off in trailer towing mode, if it has one.

If it does, you can try to plug in something like this to make it think you are towing all the time. I did this on an F150 years ago.

https://www.etrailer.com/Electrical-Tools/Brophy/F4CT.html

I was also going to suggest Auto Stop Eliminator, but it doesn't look like they make one for 2018

https://www.autostopeliminator.com/collections/gm?_gl=1*13tjgv*_up*MQ..*_gs*MQ..&gclid=Cj0KCQjwhYS_BhD2ARIsAJTMMQa0e_lS6JP0k4r-yePHc9TmJzQTa0lSeN3J5Lgu5LVt0p0fxx4JOvwaAtVIEALw_wcB

redaszag99

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1:34p, 3/24/25

https://www.rangetechnology.com/platform/gmc/sierra-1500/2018/products/start-stop_disabler/

RaggedConverge

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In reply to redaszag99 • 9:06p, 3/25/25

AG

Thanks. Turning on tow haul worked.

austinag1997

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10:19p, 3/25/25

AG

Doesn't that also change the transmission settings? Can't you just remove the trailer fuse?

jejdag

Joined: Nov 7, 2000

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12:47p, 3/26/25

Does anyone know how the Range works? I've got one for a 2018 Xt5 V6 I sold and wonder if it would work here? I'd sell it cheap