"Service 4WD" - Master Thread

[goodoldcbcjohn]

Quick in and out...Not sure how true it is but Service Advisor said that there are two different recalls in regards to the "Service 4WD" message...one where the person just gets the message and then another one where the vehicle actually gets stuck in 4WD Hi(mine). I have attached my service ticket for your reading pleasure...

 

[greg_tahoe84]

Quick in and out...Not sure how true it is but Service Advisor said that there are two different recalls in regards to the "Service 4WD" message...one where the person just gets the message and then another one where the vehicle actually gets stuck in 4WD Hi(mine). I have attached my service ticket for your reading pleasure...

Yep. Took mine today, was told of the recall. Hopefuly it gets fixed once and for all.

 

[rgpie75]

Add mine to the list. Just got stuck in 4wd tonight. Taking it in first thing in the morning. About to go back and read this whole thread to see what I'm in for.


Sent from my iPad using Tapatalk

 

[sub08]

4wd recall

at 5599 miles, dealer performed official recall, 14616 service 4 wheel drive, transfer case shift module reprogram.

hopefully it will be good before i go on my ski trip next week.

keep you posted.

 

[humer101]

at 5599 miles, dealer performed official recall, 14616 service 4 wheel drive, transfer case shift module reprogram.

hopefully it will be good before i go on my ski trip next week.

keep you posted.

Looks last update is a home run,is working good after they do last relearning on my truck. [emoji1] [emoji385]

 

[Sechal]

New to this thread but owe a lot of thanks to it. My car got stuck in 4wd with error indicator
coming on as well. Brought in this morning and they serviced it, as well as 2 other recalls under warranty. For everyone's benefit I can attach image of service order if someone can tell me how!


image1.JPG

 

[Sechal]

Here's the service order

....and I should have mentioned that problem is resolved, at least for now
(2015 Chevy Tahoe LTZ)

 

[fszatko]

I got stuck in 4WD in October. Dealer knew nothing about it. I showed them the posts from this forum. They flashed the TCM and problem was fixed. The problem did not recur.

A few weeks ago I received a recall notice for the same thing. I took it in. They confirmed that the TCM update from October was the same version mentioned in the recall. (The recalls lag by a few months they said).

So...that's good news. I have the latest TCM update and have been driving in AWD for 2-3 months with no recurrence. Looks like it works.

 

[JohnRI]

Had the same problem yesterday as described. Had been in Auto mode in morning and when starting vehicle in afternoon the Service 4WD light came on and sure enough it was in 4WD. Called dealer service team and they told me to bring it in immediately and they could do a quick program update to resolve the issue. I was not aware of the recall and then they said there were 3 additional service updates including the AC. Interesting all these issues since October when I had the Oil Change done and other recall items fixed.

Maybe it's just me but after the reprogramming the steering seems like it takes more effort to turn. Does any know if the EPS is programmable or had the same feeling after the 4WD Service Reprogramming?

Great forum.

 

[humer101]

Had the same problem yesterday as described. Had been in Auto mode in morning and when starting vehicle in afternoon the Service 4WD light came on and sure enough it was in 4WD. Called dealer service team and they told me to bring it in immediately and they could do a quick program update to resolve the issue. I was not aware of the recall and then they said there were 3 additional service updates including the AC. Interesting all these issues since October when I had the Oil Change done and other recall items fixed.

Maybe it's just me but after the reprogramming the steering seems like it takes more effort to turn. Does any know if the EPS is programmable or had the same feeling after the 4WD Service Reprogramming?

Great forum.

Yours is 2015D or 2015i?

 

[JohnRI]

Sorry but I am not familiar with the "I" or "D" designation. Build Plate show "K". If designation has to do with the manufacturing date, I ordered my highly optioned SLT XL in January 2014 and it was built in in March 2014.

 

[humer101]

Sorry but I am not familiar with the "I" or "D" designation. Build Plate show "K". If designation has to do with the manufacturing date, I ordered my highly optioned SLT XL in January 2014 and it was built in in March 2014.

Is OK " D"mean discontinue, and " i " mean update model 8 speed. [emoji2]

You,me and all the rest of guys with 2015D basically we are f....k sorry about that but this is real life, not complain about anything else, but transfer case and 4wd problem. [emoji19]

 

[Bigbird]

4-Wheel Drive Issue

I have a 2015i Yukon Denali and today was my day to join the 4-wheel drive problem family-848 Miles
Got up and hopped in to to work and went down the drivewy 35 feet turned left to go down the street and felt the steering jerk like it does when in 4 -wheel drive on pavement
Pulled over and checked the position of the switch which was in 2 wheel drive
Looked at the dash and saw service 4 wheel drive
Drove a little and found it was truly in 4 -wheel drive high
Made an appointment for Thursday
I'll let you all know what happens

 

[humer101]

I have a 2015i Yukon Denali and today was my day to join the 4-wheel drive problem family-848 Miles
Got up and hopped in to to work and went down the drivewy 35 feet turned left to go down the street and felt the steering jerk like it does when in 4 -wheel drive on pavement
Pulled over and checked the position of the switch which was in 2 wheel drive
Looked at the dash and saw service 4 wheel drive
Drove a little and found it was truly in 4 -wheel drive high
Made an appointment for Thursday
I'll let you all know what happens

Is a lot people here will be very mad about we tough they fixe but the new update transfer case is the same as the old, if you check back old post I said they do not update nothing was pure "BS" is not right. But we have to live with this now. Good luck [emoji19]

 

[Mountaingirl45]

Service 4WD finally fixed

Well I finally think my Service 4WD is finally fixed. I took my 2015 Tahoe back in November for the 3rd time for the "Service 4WD" . I let them know I know of Arizona's Lemon Laws very well and this if they didn't get it right this time I would have them buy it back. They took 2 1/2 days before they called to say they finally fixed it. I had to wait for our next snow storm here in Flagstaff AZ which was New Years Eve to put it in Auto. Drove three days in a row leaving it in Auto the whole time. As as of today still no issues. I have attached the receipt of exactly what they did for a repair. Hope this will help anyone out there that still has the problem.

 

[Bigbird]

Stuck in 4 Wheel Drive

Went to dealer
Reprogrammed Transmission all well so far
Said TCM lost programming
Reprogrammed TCM per pip 5220b
Everthing checks good

 

[humer101]

Went to dealer
Reprogrammed Transmission all well so far

When you use in auto it make any vibration or noise in the front of the car. [emoji19]

 

[Bigbird]

Never had it in auto
Just got up to go to work and it was in 4-Wheel drive
Could tell as soon as I turned
No vibration just normal 4-Wheel drive feel when on pavement

 

[ScottV503]

Never had it in auto
Just got up to go to work and it was in 4-Wheel drive
Could tell as soon as I turned
No vibration just normal 4-Wheel drive feel when on pavement

You had the vehicle in 2WD but it decided it wanted to be in 4WD and you couldn't get it back to 2? I don't think I have read anyone having that happen to them. That kinda freaks me out.

 

[Bigbird]

Think how I felt
Had it in auto about a week before for a day when the snow was falling