PSA To All Aveo Owners with an Automatic

[HeavyDuty]

it's a 2009, I bought it brand new in Oct 08, it hasn't shifted properly since Dec. 2009....shifts fine if temp is say plus 4 Celsius or higher...anything below that, it doesn't. And this "hunting" it does is when it's not shifting properly. Those issues are connected in some way. Mine looks to be the same as yours, color anyways, just mine's the TEAM CANADA EDITION, it came with all the extra special problems so I had to have it LOL

The dealerships here know what the problem is....just nobody will fix it or acknowledge there is a problem on paper, as I mentioned before if I walk in and talk to them about it they know....and when it's in this "mode" of operation I call it, your getting less than 20 mpg. There is even a mention of this problem in the owners manual...LOL I know because i faxed it to two dealerships back in 2010 when I was trying to have it repaired.

[Thymeclock]

it's a 2009, I bought it brand new in Oct 08, it hasn't shifted properly since Dec. 2009....shifts fine if temp is say plus 4 Celsius or higher...anything below that, it doesn't. And this "hunting" it does is when it's not shifting properly. Those issues are connected in some way. Mine looks to be the same as yours, color anyways, just mine's the TEAM CANADA EDITION, it came with all the extra special problems so I had to have it LOL

The dealerships here know what the problem is....just nobody will fix it or acknowledge there is a problem on paper, as I mentioned before if I walk in and talk to them about it they know....and when it's in this "mode" of operation I call it, your getting less than 20 mpg. There is even a mention of this problem in the owners manual...LOL I know because i faxed it to two dealerships back in 2010 when I was trying to have it repaired.

You may be experiencing the same problem as in this thread (click here).

Have you contacted GM directly? Even if your car is no longer under the three year bumper-to-bumper warranty, if you already have the problem documented by a dealership the warranty should still apply. Power train is covered for five years. In my personal experience, some Chevy dealerships simply don't want to do warranty work. You need to do two things: call GM and calmly describe what you have been through so far. They can (and if you handle it diplomatically they will) put pressure on a dealership to get the problem resolved. If you don't feel comfortable with that dealership or if you think they are incompetent, find another dealer in your area if possible. If you still can't get it resolved, then you can take it to the next level and demand the name of the area rep for Chevrolet. It will require patience and persistence.

There is even a mention of this problem in the owners manual.

That makes no sense to me. Please quote it and tell us what you mean by that.

As I said before, most cars will not go into TC lockup (or overdrive) until the engine reaches operating temperature. And that is not a defect; that is normal operation.