2016 GMC Terrain AWD switch? - TerrainForum.net: GMC Terrain Forum
 
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post #1 of 9 (permalink) Old 02-16-2020, 04:04 PM Thread Starter
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2016 GMC Terrain AWD switch?

Hello, does anyone know if it's possible to turn OFF the AWD on a 2016 Terrain? Thank you
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post #2 of 9 (permalink) Old 02-16-2020, 09:02 PM
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I don't have a 2016, and my 2011 doesn't even have AWD, but I thought switchable AWD was a new phenomena for the Gen-3 Equinox/Terrain (2018 and beyond).

In other words - I don't think the Gen-2's (or, actually ... Gen-1 Terrain, since the Terrain started with the Gen-2 Equinox) came with that capability.

Someone else will chime in shortly to confirm.

2011 Equinox 1LT (dlvd. Jan 2011): Summit White / 3.0 L V6 / FWD / Pioneer Stereo / 18" Wheels / 143k miles [15-MAR-2020]

2002 Impala 1LT (dlvd. Jun 2002): Summit White / 3.4 L V6 / FWD / Cassette-CD Combo /230k miles [15-MAR-2020]
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post #3 of 9 (permalink) Old 02-17-2020, 06:49 AM
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Colt - Once again, you are 100% correct !

2018 Equinox LT1 1.5 L 4 cyl, AWD, S/R Cajun Red Tintcoat/Black

2010 Equinox LTZ 2.4 L 4 cyl, FWD, S/R Cardinal Red/Black
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post #4 of 9 (permalink) Old 02-17-2020, 12:43 PM
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Yes, stock there is no way to turn off. I'm sure with the right software tools it could be done*, but why would you want to?






* I say this because in the event of a wheel speed sensor failure, or crumbling of the hub's magnetic ring (where wheel speed cannot be read), the system defaults to front wheel drive. And loses traction control, ABS, and stability control. So the computer does have control over AWD engagement, and can completely shut it off.
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post #5 of 9 (permalink) Old 02-17-2020, 07:44 PM
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Originally Posted by adam728 View Post
Yes, stock there is no way to turn off. I'm sure with the right software tools it could be done*, but why would you want to?






* I say this because in the event of a wheel speed sensor failure, or crumbling of the hub's magnetic ring (where wheel speed cannot be read), the system defaults to front wheel drive. And loses traction control, ABS, and stability control. So the computer does have control over AWD engagement, and can completely shut it off.


i never understood how it ďturns it offĒ the transfer case isnít electronic so iím not sure what it disables


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post #6 of 9 (permalink) Old 02-17-2020, 08:40 PM
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i never understood how it ďturns it offĒ the transfer case isnít electronic so iím not sure what it disables
It's done via the AWD Coupler. Basically an electric clutch pack on the input of the rear diff.

2011 GMC Terrain 3.0L AWD
2008 Chevy Impala SS
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post #7 of 9 (permalink) Old 02-17-2020, 09:04 PM
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It's done via the AWD Coupler. Basically an electric clutch pack on the input of the rear diff.


what iím saying is i donít recall seeing any electrical connectors on the transfer case, we just had ours replaced last fall and i picked it up i remember thinking it was odd there was no electrical connections


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post #8 of 9 (permalink) Old 02-17-2020, 10:05 PM
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what iím saying is i donít recall seeing any electrical connectors on the transfer case, we just had ours replaced last fall and i picked it up i remember thinking it was odd there was no electrical connections


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As rjayl said, it's on the rear differential input. Don't feel bad, I just learnd that too.

A quick web search shows



And it definitely can completely cut AWD. Thanks to a hub issue causing passenger front wheel speed to not read I was FWD only just before Christmas.
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post #9 of 9 (permalink) Old 02-17-2020, 10:27 PM
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Originally Posted by adam728 View Post
As rjayl said, it's on the rear differential input. Don't feel bad, I just learnd that too.

A quick web search shows



And it definitely can completely cut AWD. Thanks to a hub issue causing passenger front wheel speed to not read I was FWD only just before Christmas.


strange they did it this way, essentially it has a rear axle disconnect just like the 2018+ models itís just not switchable, when the 2018ía they advertised the new system as switchable due to a newly added axle disconnect to disengage the rear driveshaft. all the older models were missing was the switch and programming it seems.


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