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gmcustsvc

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gmcustsvc
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  • thehatrix
    I was reading your concern in a post regarding 2015 GMC Sierra 8 speed transmission problems. Every since I bought my Denali new in 12/15, I have complained to the dealer about hard shifting and the sensation that I'm getting hit from behind. It happens mostly on upshifts at slower speeds but now is happening at downshifts too. The dealer said they cant get it to happen when the drive it, but it happens to me every time.... They have reset the transmission twice and reprogrammed the torque converter, "just to make me feel better". The truck is great but the problem annoys me enough that I'm thinking of trading it and never buying GM again. Please restore my faith that GM actually cares about my problem!
    August 25
    • gmcustsvc
      gmcustsvc
      Please be assured that we take your feedback very seriously, thehatrix. It is very important to us that you have a positive experience with our products and dealers. We can certainly recognize how frustrating this matter would be and apologize for any displeasure. Our team welcomes the opportunity to look further into this matter on your behalf. If interested, please send us a private message with your VIN, current mileage, full contact information and name of involved dealership at your earliest convenience.

      Helen
      GM Customer Care
  • bigogreman1
    I see the same issues I'm dealing with, I have 2013 Equinox which my wife worked at the Chevrolet Dealership and I think they took advantage of her, but now the vehicle is in shop this morning and I'm afraid of the issues that may arise.. buy a car, then have to put alot more money in to it??? So wrong!! And I liked GM, now not so much
    August 9
  • karrie3373
    Just got my 2014 Chevy Impala about 2 months ago, 4 times in past 2 weeks the traction control came on when taking off from a stop sign and in a parking lot. There was a scrapping noise (abs i assume) and I had to stop (as a car was coming toward me) took it to GM dealer, No code so NO fix. So now I get to nervously drive it hoping it doesn't randomly stop again OR try to remember to turn it off every time I drive. I was so excited to get this car and now I am scared of it. :(
    June 15
    • karrie3373
      karrie3373
      By the way, it is summer, so no ice, and I am a pretty slow driver so it is not as if I was spinning my tires taking off from a stop. I am a 43 year old who is never in a hurry.
    • karrie3373
      karrie3373
      I don't want to crash and get hurt just because they couldn't duplicate the problem or get a code. It doesn't seem fair that I get to risk my life because of some code.
    • karrie3373
      karrie3373
      OK after google and a lot of thought I realized that this traction control problem did not start until I put E85 in the car, I am not the only one this has happened to in GM cars. Maybe people should know about this possible problem when changing gas. So if you put E85 in and are now having traction control issues this MIGHT be the culprit.
    • gmcustsvc
      gmcustsvc
      Hi karrie3373,

      We are sorry to hear about your Impala and understand how frustrating it can be to have a concern with a new vehicle. Please know your safety is important to us and we do take your feedback seriously. As we are not trained technicians we rely heavily on our certified dealerships for concerns such as these.

      To clarify, does your Impala have a yellow fuel cap? On page 264 of the Owner’s Manual it states “if the vehicle has a yellow fuel cap, E85 or FlexFuel can be used in the vehicle.” This page also states what fuel is best for the Impala. “The recommended fuel for the Impala is regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise may be heard. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline with a higher octane rating, the engine needs service.”

      We would be happy to look into this for you, please feel free to send us a private message.

      Best,

      Cristina
      GM Customer Care
    • karrie3373
      karrie3373
      Yes it has a yellow cap, I let the e85 run out and put reg. in, no traction control problems since. I will never use E85 in this car again, it shouldn't even be an option!
  • gearyclan
    I have a 2008 Cadillac CTS that I bought from a dealer in November 2015. It had 91,000 miles on it. I had to pull over with knocking sounds. The oil was changed about 2 weeks ago. What could be the problem? There were no sensor lights on. I'm reading about all of the problems that people are having with the engines. Know I'm upset with this and I'm worried as I may have to put a new motor in still owing 12,000 on the car. If it is the engine i will never buy another Cadillac or Chevy ever again.
    June 27
    • gmcustsvc
      gmcustsvc
      Hi there gearyclan,

      We appreciate you reaching out to us. We regret to hear about the recent sound concerns you're experiencing with your CTS, as we understand how frustrating sudden vehicle concerns can be. As we are not trained technicians, we heavily rely on our dealerships to perform official diagnoses to properly address all vehicle concerns. If you would like assistance in setting up an appointment at your dealership, please private message us with your VIN, current mileage, full contact information, and your preferred dealership to move forward.

      Chelsea D.
      GM Customer Care
gmcustsvc — Car Forums at Edmunds.com