Anyone had their C7 Z06 or any C7 warranty denied or voided due to aftermarket re-calibration ?

 

Any tune will void warranty, much discussion on the forum, one of the first things GM looks at if a major mechanical repair.

 

When you say warranty voided, they can't void the entire warranty on the car. Only the parts of the car that the modification impacts.

 

I ran quick search prior to the post and discovered some dialog regarding the issue, however did not find anyone specifically stating warranty denial or voided as a result of aftermarket tuning.

 

research the Magnuson-Moss Warranty Act

 

I'll say this until I am blue in the face, but this is not true.
Its easy to regurgitate info like this all over the forums (I dont do FB but can only imagine what these discussion look like over there ) but that doesn't make it true.
Are there lots of detectable tunes out there. Yes.
Are tunes loaded with a Diablosport i2/i3 or T3 tuner detectable by the dealer? NO.

Thanks

 

Funny how no one actually reads the question...

Can it be done, yes, but the question is has anyone here had it actually denied...

Regards
Chip

 

 

Indeed that is the question.

Thanks Chip

 

Yup - I remember this thread and it answer's the OPs question.

 

Back when we had a C6, there was a lot of discussion about a tune voiding the powertrain warranty (engine, tranny, etc voided but not radio, brakes, etc). There were several people who posted about getting denied because of a tune, and a couple of dealer Techs who said that GM would want the full info on current and previous tunes before approving any major engine warranty work. Minor stuff that's not expensive to fix, usually no one checks.

 

Jim you are absolutely correct , my C7 swallowed a valve and the first thing GM asked the dealer for was my TUNE file ( CVN ) before approving more than $14,000 worth of repairs (new engine , labor, Fluids etc )
Folks say "my dealer said ..." I am here to tell you when something major happens , it's not up to the dealer .... it's up to GM .

Now when you use a Diablo , that's different as a diablo tune or a custom Diablo tune is not detectable

Dave

 

What makes a Diablo tune not detectable by GM? Just saying it isn't detectable doesn't make it so. The dealer may not detect anything but GM may have more capability and it is GM's ruling that counts. Just like you I dropped a valve on the track in my C6Z and the first thing the dealer had to do was send all of the tune info to GM before approval was given to even start a tear down to find the problem.

Bill

 

Bill, the fact that a diablo tune is undectable has been debated for years . I don't know how they do it but a diablo tune does not change the CVN file , I am sure that Mike and Diablo Lew can elaborate on this .

I personally can verify this fact as on my C6 I had a Diablo Tune, headers , Intake etc and I am friendly with my dealer who was working on the car at the time . I had the car in for a Harmonic balancer replacement, which has nothing to do with the tune in the car so asked them to send my restored tune up to GM to be checked just for my own information .....

They did and the response was that it was the original tune in both the ECM and the TCM . I had loaded and unloaded that tune 100 times as I was making small changes to the custom Tune that Diablow Lew provided me

I also have a good friend who has a C7 , had a fuel injector issue , they sent his files up and they also came back as good.....

These facts along with the many posts from Mike and Lew are enough to convince me

Now I don't condone modifying a car and then expecting GM to pay for what breaks. I am just making a statement that the Diablo and its associated CMR software is undectable . HP tuners and all the others are detectable

Recently in another thread here on the forum when I posted these facts it turned hostile with one individual, he stated that I was being condesending especially when I made the point that Diablo sells thousands of these tuners and if just one tune was detected it would be all over the internet ......

When Mike and Lew confirmed what I was saying the individual stopped posting

When i post on this forum,I am only here to help as you can witness by the many thanks I have received from folks who have reached out to me

I don't post second hand knowledge and I don't post internet urban legend been working on cars for a long time .... lol lol

Dave

 

You guys are so worried about the tune but other things can cause an issue. My buddy put a set of cat less long tube headers on his his 15 z51. 2 days later he threw a rod. The car has no tune and no other mods but the long tube headers. They voided is power train warranty and did not repair the engine. The car is still sitting with a blown motor. They said the design of the header comes to close to the oil cooler and it over heated the oil and thats why the rod went bad. However thats on the dealers choice not
GM. He should have tipped the service adviser and mechanic lol

 

 

He should have had a tune.

 

or took the headers off before he brought it to the dealer

 

From what i understand it is cause diablo modifys the stock tune where is in all others write a tune.

 

bingo !
we have a winner
Dave