"Service 4WD" - Master Thread

[humer101]

I am now a victim. 4wd service error pops up every time I start my 2015 Yukon xl denai.
500kms only in 6 weeks of ownership.

I have always kept it in AUTO and soon as the cold weather came in... 4wd service error always comes in when I start the truck.

I will have to talk to my dealership on Canada. Can anyone recommend any fixes?

They will relearn the transfer case in 5 minutes and you good to go.

 

[dirt-diver]

No fix yet

The dealer will reprogram the module that controls the transfer case (I think that's what it does at least) and it seems like that's the end of it.

Unfortunately, not the end of it. There is no true fix as of yet. The quick reprogram will simply get it out of 4WD. If you use 'auto' mode again, it can and probably will get stuck in 4WD once again.

 

[Lyon]

Unfortunately, not the end of it. There is no true fix as of yet. The quick reprogram will simply get it out of 4WD. If you use 'auto' mode again, it can and probably will get stuck in 4WD once again.

Oh crap, I thought, from following this thread, that GM had finally found a new flash for the controller that was actually working! Are you still having issues?

 

[greg_tahoe84]

At 4000 miles I got the Service 4wd error once again. And now when I put my car into park and turn off my car I feel a hard thump in my car. I am not sure if it is the transmission or something else.

 

[HAARubicon]

My latest update is working, so I think GM got this problem solved, make sure your service department has the latest updates and you should be good to go.

 

[humer101]

My too looks like they have solve. [emoji53] [emoji567]

 

[sub08]

"Service 4WD"

Got mine mid August and have 5300 miles to date.

I had same issue "service 4WD", 4Wd being active on 2WD mode.

I reset it by disconnected the negative terminal of the battery for a minutes and reconnected it. It stayed on 2WD but the Service 4WD comes up after every startup.

Will try to send it to the dealer for update and hope it works.

 

[07Burb]

My too looks like they have solve. [emoji53] [emoji567]

So you're sad that it's solved?? ...or did you just choose the incorrect smilies on accident?

 

[humer101]

So you're sad that it's solved?? ...or did you just choose the incorrect smilies on accident?

Yes sir, pick the incorrect face [emoji38] [emoji593]

 

[goodoldcbcjohn]

Well just over 3k miles and the tahoe just popped the service 4wd error and is stuck in 4wd...oh fun...first problem with this tahoe...

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