Dingy Towing 2015 GMC Yukon 4WD
We have a 2015 GMC Denali Yukon XL 4WD with the ‘transfer case’ which allows towing 4 wheels on the ground. Bought the car in January but today is first time we tried hooking it up behind the motor h...
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Problem Fixed!
We would never in a million years figured this out WITHOUT the #PIP5217A: Service 4 Wheel Drive Message After Flat/Dinghy Towing – (Aug 21, 2014). Note the date! It even says that customers will be sent updated information (steps 5.1 thru 5.4). Funny when we picked up the vehicle in January 2015 no mention was made of this ‘issue’ nor were we given these instructions and we were definitely not warned about the consequences of the transfer case setting a diagnostic code that would prevent getting back into 2WD.
Bottom line - If you get the Service 4WD message after towing and transfer case will not shift into 2WD you need to follow these instructions:
1. With the ignition in the RUN position and engine not running,
2. Open the hood and remove the 30 Amp TREC fuse in the under hood fuse block (in our 2015 GMC Yukon Denali XL it is on the driver’s side rear most fuse … it is pink and fat),
3. Reinstall the 30 amp fuse
4. Continue with “Shifting out of neutral” in the owner’s manual.
Note: Removing the TREC fuse with the key on may cause additional messages to appear on the DIC including service stabilitrak. After the transfer case is shifted out of neutral turn the vehicle off, restart the vehicle and those messages should not reappear.
Also I will tell you that the dealership and we were successful getting transfer case to 2WD WITHOUT the engine running after removing and reinserting the 30 amp fuse.
I am trying to merge the 3 sets of instructions so that we will have a clear set of instructions on one page! I neither recommend nor suggest what you do if you experience a similar problem but we thought it was appropriate to share our own experience.
Diann
P.S. I can't figure out a simple way to attach scanned pages. Will try later when I am less tired. After we got home I turned on A/C units and a horrible noise began. It was the infamous dirt dobber nests. I had to crawl on top and take off top of A/C units (where I cracked the plastic on one of the screw holes) and dig out nests and clean debris. This should be an easy fix but I am old with two artificial knees and Robert is recovering from hip replacement surgery. Not asking for sympathy but just explaining why even simple tasks can be difficult and time consuming. Still I woke up this morning without dirt on my face and intend to do the same thing tomorrow. LOL
We would never in a million years figured this out WITHOUT the #PIP5217A: Service 4 Wheel Drive Message After Flat/Dinghy Towing – (Aug 21, 2014). Note the date! It even says that customers will be sent updated information (steps 5.1 thru 5.4). Funny when we picked up the vehicle in January 2015 no mention was made of this ‘issue’ nor were we given these instructions and we were definitely not warned about the consequences of the transfer case setting a diagnostic code that would prevent getting back into 2WD.
Bottom line - If you get the Service 4WD message after towing and transfer case will not shift into 2WD you need to follow these instructions:
1. With the ignition in the RUN position and engine not running,
2. Open the hood and remove the 30 Amp TREC fuse in the under hood fuse block (in our 2015 GMC Yukon Denali XL it is on the driver’s side rear most fuse … it is pink and fat),
3. Reinstall the 30 amp fuse
4. Continue with “Shifting out of neutral” in the owner’s manual.
Note: Removing the TREC fuse with the key on may cause additional messages to appear on the DIC including service stabilitrak. After the transfer case is shifted out of neutral turn the vehicle off, restart the vehicle and those messages should not reappear.
Also I will tell you that the dealership and we were successful getting transfer case to 2WD WITHOUT the engine running after removing and reinserting the 30 amp fuse.
I am trying to merge the 3 sets of instructions so that we will have a clear set of instructions on one page! I neither recommend nor suggest what you do if you experience a similar problem but we thought it was appropriate to share our own experience.
Diann
P.S. I can't figure out a simple way to attach scanned pages. Will try later when I am less tired. After we got home I turned on A/C units and a horrible noise began. It was the infamous dirt dobber nests. I had to crawl on top and take off top of A/C units (where I cracked the plastic on one of the screw holes) and dig out nests and clean debris. This should be an easy fix but I am old with two artificial knees and Robert is recovering from hip replacement surgery. Not asking for sympathy but just explaining why even simple tasks can be difficult and time consuming. Still I woke up this morning without dirt on my face and intend to do the same thing tomorrow. LOL
