Sorry to hear about the response from the dealer Caniac. I'm so frustrated with mine that I wish I could just give it back to em. My dealer is trying hard and the service has been great. They are having a special drivetrain tech come in to spend some time with it so I will let you know the results. I have made them aware that if I am told that this is normal operation again that it will be unacceptable. I just can't live with it. I've had 2 other Tahoes (04 LT and 05 Z71) that were great. This one should be even better and it's disappointing that I would rather have my old ones back at this point. BTW, the dealer is replacing all 4 tires because they were flat spotted from the truck sitting on the lot for 8 months.

 

Anyword on this? I have a LT2 and it does something similar. I though it was the way I was babying the throttle and lugging the motor so I have sort of cured it by being a little heavier on it and getting it to downshift in those instances so I really don't even notice any more. I've been meaning to try towing mode as that is supposed to hold gears longer as well.

I believe these trucks have throttle by wire so with little throttle it might be modulating more than it should. Also what wheels/tires do you have? I have 17" and I believe the Z71's have 18"? I wonder if this is also happening to those with 20's? (just trying to find a correlation).

 

I have 2009 LT2 with 20 inch wheels and have not experienced this issue. I only have about 1100 miles on the truck so far.

 

I own an '09 Tahoe and have about 19,500 on it. I must say it has not had one issue. It is a great truck, great engine and transmission. The mileage is impressive to boot.