"Service 4WD" - Master Thread
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two 15 denali's both same crap, along with other stuff..
had both of them over a year now, and both seem to have the same issues, GM dropped the ball
Not to mention the transmission swap, wifi power running boards all the crap they changed after the first run of them...
had both of them over a year now, and both seem to have the same issues, GM dropped the ball
Not to mention the transmission swap, wifi power running boards all the crap they changed after the first run of them...
dirt-diver
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What the hell GM?
Where the hell is GM on this issue? It's been months and months, and... months and months, they have no info for dealers. I get empty stares when I ask for updates at my local garage. And GM's empty promises on this forum were just that, empty!!! Hear that? ... crickets ... that's the sound of GM working on this issue... They're not!
They're obviously so inept that they're unable to solve this seemingly simple issue. Out of all the engineering they do to create automobiles, this issue is the toughest? Hard to believe. And they still can't even get these things produced and off the line. They're continually dropping the ball. Over, and over, and over.
Just as Kerr mentioned, between the somewhat-major updates they did after all their excited/loyal customers bought the first batch of 2015's, the epic shit-show GM is performing regarding 4WD, and the piss-poor / dangerous adaptive-cruise control, I'm completely disgusted with GM.
(I could elaborate on the adaptive-cruise, but that POS just about killed my wife and I on the freeway this weekend. Our Chrysler 300 on the other hand was rock solid.)
General Motors, can you hear me?!?! You've lost a very loyal customer with this crap. If we wouldn't lose our ass, I'd sell this heap of shit you made.
Where the hell is GM on this issue? It's been months and months, and... months and months, they have no info for dealers. I get empty stares when I ask for updates at my local garage. And GM's empty promises on this forum were just that, empty!!! Hear that? ... crickets ... that's the sound of GM working on this issue... They're not!
They're obviously so inept that they're unable to solve this seemingly simple issue. Out of all the engineering they do to create automobiles, this issue is the toughest? Hard to believe. And they still can't even get these things produced and off the line. They're continually dropping the ball. Over, and over, and over.
Just as Kerr mentioned, between the somewhat-major updates they did after all their excited/loyal customers bought the first batch of 2015's, the epic shit-show GM is performing regarding 4WD, and the piss-poor / dangerous adaptive-cruise control, I'm completely disgusted with GM.
(I could elaborate on the adaptive-cruise, but that POS just about killed my wife and I on the freeway this weekend. Our Chrysler 300 on the other hand was rock solid.)
General Motors, can you hear me?!?! You've lost a very loyal customer with this crap. If we wouldn't lose our ass, I'd sell this heap of shit you made.
A few months ago I posted saying my transfer case software was updated on Feb 2, and asked if anyone whose was updated on or after that date has had a problem. No one has responded affirmatively, which seems to indicate GM may have solved the problem. As of right now, I have not had the problem recur.
Interesting. I took Yukon into the dealer for oil change service last week and asked about status of the issue. Service manager said still no fix (at least as of Tuesday) and that GM believes that the problem is temperature related. My last update was late January and I mostly remembered to change back to 2WD before shutting off engine.
So either the service department does not have the latest information, an updated fix came out later in the week or it is really temperature related so those of us in the snow regions won't have a problem until next season. I have to take my 2015 Sierra 2500HD in for service tomorrow and ask the service manager to check with GM. No Auto option on that vehicle so no issue last winter.
So either the service department does not have the latest information, an updated fix came out later in the week or it is really temperature related so those of us in the snow regions won't have a problem until next season. I have to take my 2015 Sierra 2500HD in for service tomorrow and ask the service manager to check with GM. No Auto option on that vehicle so no issue last winter.
They do last update on my car last month when I bring for 22,500 miles services after that the grinding noise is going and I think they finally fix is running very good after that.
My complain that is resolve now I have few months left before a trade for 2016.
The last time this happened with my 15 Tahoe I was also told that they believe it to be temperature related. I have forgotten to change it back to 2wd and left it in auto a few times since it's warmed up and it hasn't happened. I guess we'll see how it goes...Regardless, it's very frustrating.
JP
JP
4wd solved
I was getting "service 4wd" message. Vehicle was stuck in "auto" but ran fine. Took it in for regular service. They reprogrammed transfer case. Now everything seems okay.
By the way, the service manager told me to keep it in 2wd unless it is slippery or snowy. He said there is less wear on the transfer case.
Good luck to all with this problem.
I was getting "service 4wd" message. Vehicle was stuck in "auto" but ran fine. Took it in for regular service. They reprogrammed transfer case. Now everything seems okay.
By the way, the service manager told me to keep it in 2wd unless it is slippery or snowy. He said there is less wear on the transfer case.
Good luck to all with this problem.
My 2015 Denali just got stuck in 4WD for the first time (and hopefully the last!)
7,500 miles on it and pretty much have kept it in Auto setting the entire time - was completely unaware of these vehicles locking up. Only one or two weekend trips with snow and I can't recall if i shifted into 4WD manually or not.
Based on this trail pretty much going dead, it would appear that whatever fix GM has finally come up with it sufficient.
Already had service appointment scheduled for this week. Fingers crossed!
7,500 miles on it and pretty much have kept it in Auto setting the entire time - was completely unaware of these vehicles locking up. Only one or two weekend trips with snow and I can't recall if i shifted into 4WD manually or not.
Based on this trail pretty much going dead, it would appear that whatever fix GM has finally come up with it sufficient.
Already had service appointment scheduled for this week. Fingers crossed!
I have had a few problems getting stuck in just a small amount of snow under one tire. This is up my driveway. Pretty embarrassing. My cars get up fine and even in 8-12 inches the cars get up the driveway. Quite embarrassing. I have had it in 2x for this. I think they fixed it. They said that when it is really cold it gets stuck in 2wd. I don't accept that explanation. I haven't seen anymore snow so Im not sure. The only thing I can say is that it feels strange in 4Auto when I switch over for rain.
mandmlakeville
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I've had mine in 3 times for "stuck in 4WD" issues so far, in just under 25K miles. The last time I had it in (Jan 2016, 20,500 miles), they replaced the "TRANSFER CASE TWO/FOUR WHEEL DRIVE ACTUATOR". The time before that (June 2015, 8,500 miles), the performed this update: #14616: Service Update for Inventory and Customer Vehicles - Service 4WDMessage - Transfer Case Stuck in 4WD HI. The first time (Jan 2015, 2,000 miles), the record says this: TRANSFER CASE CONTROL MODULE REPROGRAMMING WITH SPS. I think this was before GM had really diagnosed the problem at all.
BTW, this is a 2015 (not 2015i) Suburban LTZ.
Cbriggs9742
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Just purchased a 2016 Z71 Tahoe less than a month ago. It was a demo unit and has 4K miles. We keep getting the "service 4WD" message. I turned it off auto and into 2WD mode. At one point the vehicle went into 4WD while my wife was driving for no reason. The knob was still on 2WD, so I had to switch it in and out of 4WD to get it back into 2WD. This has only happened once.
I have taken it into the dealership twice, the first time they said they reprogrammed the computer. The next day we received the message again. Took it back to the dealer, they had it for a couple of days and said they secured some loose connections and they believed that was the problem. Again, the next day we got the "service 4WD" message.
Also, I'm not sure if this is normal or not, but if I'm driving in 2WD and switch it to AUTO, it puts the car in AWD. But if the car is off, and I start it in AUTO, it remains in 2WD. This normal?
Anyonr experiencing any issues like this? I appreciate any feedback.
- Chris
I have taken it into the dealership twice, the first time they said they reprogrammed the computer. The next day we received the message again. Took it back to the dealer, they had it for a couple of days and said they secured some loose connections and they believed that was the problem. Again, the next day we got the "service 4WD" message.
Also, I'm not sure if this is normal or not, but if I'm driving in 2WD and switch it to AUTO, it puts the car in AWD. But if the car is off, and I start it in AUTO, it remains in 2WD. This normal?
Anyonr experiencing any issues like this? I appreciate any feedback.
- Chris
I have a 2015 LT Tahoe with 4WD and the heavy duty trailering package (two speed transfer case). Bought it new in August of 2014. I get the "Service 4WD" message regularly. Typically, 3 times a week. When I first got the vehicle, I drove it with the transfer case in "Auto". A couple of times when I started the vehicle, the transfer case was locked in 4WD. Not sure if it was 4WD hi or lo, but it was locked. First time I was near the dealer, so I took it in. Second time I had to have it towed. They reprogrammed it and tried various things. Each time proclaiming it was fixed. Not. The told me I shouldn't use Auto because this would just keep happening. When I get the "Service 4WD" message, the transfer case will not respond to any command. If you move the selector to another setting, the light on the selector goes out. Nothing happens. So, I have an overpriced 2WD vehicle that is lugging around a lot of useless heavy hardware. Can't use the Auto because I might get stuck in 4WD. I can't count on being able to use the 4WD if I need it because if the Service 4WD comes on, I can't switch into or out of 4WD. I called OnStar and asked why their diagnostic reports regularly say my driver train is AOK, when it's clearly not. They argued with me saying it was fine. A supervisor came on and said I should call them from the Tahoe when this Service 4WD message came on so they could do a live diagnostics on the vehicle and that would capture it. So, I did that. Diagnostics said all was while I as looking dead at the Service 4WD message. I said their service was worse than useless, because it is falsely reporting that my drive train has no issue, so their diagnostics contradicts my claim that this happens all the time. They said maybe the OnStar system was broken and I should take the vehicle in to get that checked or replaced. They're so stupid, the don't even know if the transfer case is part of the diagnostics check, but they were willing to say anything to get rid of me, apparently.
Maybe I should join a support group and get over my hatred of Fords.
Maybe I should join a support group and get over my hatred of Fords.
We all get the same issue, they only reprogram the transfer case and problem solved.
Hello first time post. Recently purchased 2016 Yukon Denali with 3,900 miles. Now have 6,300 miles and have the "Service 4WD light" and cannot switch out to 2-WD. Normally run in 2-WD but when raining or slick switch to Auto. Had been working without any problems but past weekend after running in rain got the service message. Front wheels lock up when turning sharp left or right and I had to drive over 400 miles back home like this. Took to dealer today and they tried the quick shift to neutral and switch to Auto back to 2-WD but didn't clear so they now have it in the shop.
Shop Manager told me it would be about a week because the transmission guy had to do the repair and he has to replace 5 transmissions before he gets to my vehicle. Great GM transmissions! Not certain if these are in Arcadia or other GMC vehicles but not good. Also having the Air Bag replaced.
Shop Manager told me it would be about a week because the transmission guy had to do the repair and he has to replace 5 transmissions before he gets to my vehicle. Great GM transmissions! Not certain if these are in Arcadia or other GMC vehicles but not good. Also having the Air Bag replaced.
Wow never heard about transmission replace that is crazy.
Will be at the dealer in few weeks the want my Denali back and will switch color and is going to be a 2017 model.
Let's see what happens.
