572HP |
07-24-2011 06:28 AM |
SS Automatic Active Fuel Management
I'm hoping this will catch the eyes of the faithful GM support reps that frequent this site. I would like to hear what GM engineers have to say. I'm hoping that this can be discussed on this forum, instead of a phone call to GM.
I have a friend (on this board) that just sold his camaro and bought a mustang. His main reason for this is that he had an SS with an automatic transmission. He actually had an Indy Pace Car. Along with the SS and auto trans, you also get displacement-on-demand (aka AFM). He told me that he sold the car because he could not stand the AFM, and disabling it in the tuning options would void some of your drivetrain warranty.
My first camaro was a 2010 SS with a manual transmission. Earlier this year I bought a 2011 SS automatic convertible. I love everything about the car except AFM. I hate it! My dealer says that they are not allowed to turn off AFM.
I would like to know why turning off AFM will void the warranty...and why it is in the tuning menu at all. Is there an engineering reason? Is it due to some federal regulations...or making sure enough of the GM lineup has high enough fuel mileage?
This board is full of discussions on AFM, and how many people hate the feature. Is GM just willing to let people be dissatisfied with a great product because of this? It surely doesn't make sense. People ask me all the time if I love my new convertible. I always say yes, except for the AFM.
Can we get some GM discussion? Anyone else agree?
UPDATES
In an effort to summarize this thread, I'll update this first post with what I feel are the important posts.
Post #28 from Jeff Morris, Chevrolet Customer Service
Quote:
Originally Posted by Chevrolet Customer Svc
(Post 3533091)
Unfortunately I don't have any information whether from my technical department or my other resources on whether or not tuning this system out would negatively affect the rest of the vehicle. I am also not sure why this feature is inculded with the vehicle. Also to answer another question that you have, AFM should deactivate if you put the vehicle into manual mode (either Sports mode or Tap-shift). Once you put the vehicle back into D mode the AFM system would then re-activate and act upon your vehicle normally. I hope that helps to answer some of your questions.
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Post #32 from Jeff Morris, Chevrolet Customer Service
Quote:
Originally Posted by Chevrolet Customer Svc
(Post 3533467)
The only information that I have to go one are the e-mails that I have that were sent between myself and our techincal department which I am not allowed to divulge. Also we have agents within the department that work solely with our different vehicles and this answer came from the person that works with the Camaro. If your dealership is unwilling to work with you on this subject I would suggest you ask them to speak with our technical department themselves. I hope that helps you.
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Post #49 from Jeff Morris, Chevrolet Customer Service
Quote:
Originally Posted by Chevrolet Customer Svc
(Post 3551305)
I'm sorry Jeremy but I can't give out specific information in regards to this subject. All I personally have are internal e-mails and I cannot share those with the general public. I would simply have your dealership service person call our technical team to speak with them about this. Other than that I can't be any more specific. I'm sorry I can't be of more help to you in this situation.
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Post #96 from 572HP
Quote:
Originally Posted by 572HP
(Post 3596279)
I just got back from the dealer. Here is what was said:
Quote:
Customer states that the Active Fuel Management is not disengaging when in sports or tap shift mode. Call TAC Case 975558370 Operating As Designed - AFM Disengages only on 2010 normal operation.
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Jeff...I have a 2011. What is my next step?
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Post #98 from 572HP
Quote:
Originally Posted by 572HP
(Post 3597927)
:mad0260:
So per Jeff's suggestion (PM'd), I called and opened a case with GM. Case 71-975740962. After explaining my situation, the person I talked with put me on hold for about 10 minutes while he called my dealership and talked with my service advisor. When he came back, he said that they were told that it was working as designed, and nothing would be done about it, but the engineering team would get a copy of the complaint for possible future design decisions.
I guess GM is just willing to let a bunch of unhappy customers spread the word.
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Post #131 from 572HP
Quote:
Originally Posted by 572HP
(Post 3665382)
I sent a letter to the Service Director at my dealership asking for their assistance. They forwarded my letter to GM, and here is the response that I received:
Quote:
The long and short of it is we MUST meet criteria established by the EPA and tons of other federal agencies. I wish it was like it was in the good old days when we could do just about anything we wanted when it came to performance but it's not that way anymore. Performance cars of today and tomorrow WILL be different than in the past. That doesn't mean they wont be great cars but they will be different.
Dwellion Howard
District Manager - Aftersales
General Motors - Southeast Region
Customer Care and Aftersales
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