DFM

[SMITH2]

I have a 2023 Tahoe with the 6.2 engine. i have read that running in 9th grear is the way to stop DFM without buying a disabler. I am afraid of voiding the warranty.

 

[Marky Dissod]

I've a 2023 Tahoe with the 6.2L V8. i've read that running in 9th is the way to stop Cylinder Confusion without buying a disabler. I am afraid of voiding the warranty.

No Engine Half@$$ or Cylinder Confusion disabler plug-in has ever voided any warranty.
Your fears are unwarranted. (See what I did there?) Ask anyone using a disabler plug-in.
If those with actual experience cannot allay your fears ...

 

[Antonm]

No Engine Half@$$ or Cylinder Confusion disabler plug-in has ever voided any warranty.
Your fears are unwarranted. (See what I did there?) Ask anyone using a disabler plug-in.
If those with actual experience cannot allay your fears ...

Except since there is no DFM plug-in disabler in existence. If there was, I'd probably own one.

From my understanding, past the 2021 model year, each vehicle has a unique computer lockout code. Yes the code can be broken, but it has to be broken for each vehicle individually, so no plug-in tuner can be made/ sold that will disable the DFM, it has to be a custom written tune/ program for each vehicle.

If I'm wrong, please let me know as I would absolutely love to buy a plug-in DFM disabler.
..

 

[GKasey]

I have a 2023 Tahoe with the 6.2 engine. i have read that running in 9th grear is the way to stop DFM without buying a disabler. I am afraid of voiding the warranty.

Your owners manual will confirm.
Our 2011 Tahoe states in M and any gear except 6th selected it will *never* go into V4 only V8. We run 4th or 5th all the time except on long flat interstate runs will select D instead of M then it will go into V4 giving a true 20 mog with the AC on.