OP
OP
DocHolliday
Member
Just a quick update...they've had the truck since Thursday and it will be there till at least Monday, no word on what they've done.
165 miles and I got a service 4WD message
- Thread starter DocHolliday
- Start date
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OP
OP
DocHolliday
Member
Another quick update...at days end today I'm told they have done everything that tech support has advised them to do with no success. They are now awaiting GM engineering to get involved and advise on next steps.
OP
OP
DocHolliday
Member
Guys, aside from not having my truck I couldn't ask for a better dealer. I've been dealing with the sales manager John at Koons Chevrolet in Tysons Corner VA. He's been terrific at keeping me in the loop, I just hope they can sort out what the issue is. And giving me a LTZ Tahoe to drive as a loaner is more than I could have expected, really pleased with that.
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You are using the best dealer on the nation. My Denali come from there they are serious and up front we you.
---------- Post added at 07:34 PM ---------- Previous post was at 07:34 PM ----------
Do not worry you are in good hand brother
---------- Post added at 07:34 PM ---------- Previous post was at 07:34 PM ----------
Do not worry you are in good hand brother
OP
OP
DocHolliday
Member
I spoke with John again today, this guy is solid. Regardless of what happens I will buy from there again. Still no fix to my truck but the customer service has been outstanding.
---------- Post added at 08:33 PM ---------- Previous post was at 08:32 PM ----------
I see you're from Jersey, I bought my corvette from a dealer there.
---------- Post added at 08:33 PM ---------- Previous post was at 08:32 PM ----------
I see you're from Jersey, I bought my corvette from a dealer there.
OP
OP
DocHolliday
Member
Kerbeck in AC
jac1304
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any good dealers in seattle area.
OP
OP
DocHolliday
Member
Just an end of the week update, still know nothing about the truck or what happens next. I'm pretty laid back but this is starting to get frustrating.
Last Chance
TYF Newbie
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I just got a "service 4WD" light on my 15' Denali with 5400 miles. Very frustration after I just fixed my drivers seat with heater hose and clamps after dealer failed to fix. I have had a 07' Avalanche, 09' Denali and a 11' Denali and never had any problems. Very dissapointing.
JackJare9455
Member
Jeez... Driving in 4 HI on dry pavement is about the worst advice I have ever heard...
That kinda goes along the lines of draining your oil and running it a few hundred miles...
High oil pressure?? No problem... Drain that oil.. We will just grind out those bearing tolerances in a jiffy
That kinda goes along the lines of draining your oil and running it a few hundred miles...
High oil pressure?? No problem... Drain that oil.. We will just grind out those bearing tolerances in a jiffy
HAARubicon
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- Mar 31, 2014
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Add me to the list of people with the "Service 4WD" message. We have driven our from day 1 in 2hi. Today we hit a heavy downpour so I flipped it to Auto 4WD. Stopped for dinner, got back in and flipped it back to 2wd and the indicator never illuminated. My dealer has been great on everything, maybe they can shed some light on this issue. On all my previous GM 4wd vehicles, problems like these always have to do with Transfer Case Control Module, maybe they had a bad batch.
To the guy with the older rig that posted he changed is TCM, you need to make sure it is in the same position as the switch or it will not work. For instance, if you had it in 4wd and you installed the TCM in 2wd position it will not work, hope this helps.
To the guy with the older rig that posted he changed is TCM, you need to make sure it is in the same position as the switch or it will not work. For instance, if you had it in 4wd and you installed the TCM in 2wd position it will not work, hope this helps.
SVL
Member
Thanks for posting...looks like the number of us is growing. As of today my truck sits in service on the 3rd attempt to fix this issue. I think my dealer is stumped.
I'll post updates here (if that is okay with the OP) and hope that others with this issue will also.
Scott
SVL
Member
When it happens it does not seem to impact the operation of the truck other than at slow speeds during tight turns. My service adviser told me that it is okay to drive the truck wit this error message and it should not cause additional damage. (Don't ask me how he can know this without knowing the cause of the problem.)
I drive at highway speed for about 50 miles with the issue and did not notice any problems, fuel usage did not appear to be increased either.
Good Luck
