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I turned off CT Downshift on the Tip-In TqMgt, Flare Management, & Torque Reduction switches. All three had to be set to none, or disable, on my car.

By the way, this worked for me too. it also solved my car's over aggressive shifts when trying to drive slowly in heavy traffic. I have a built 6l80e.

This problem has been driving me nuts. I am going to try this after work.

Thanks for posting what you've done! I have had issues with my 2-3 shift on my century built 6l80e and its been driving me insane. I tried everything except going back to the stock 2-3 settings. i...

Me too.

Hello, I'm a newbie too. Just bought HP Tuners Pro about a month ago. I have a supercharged Pontiac G8 GXP and am too much of a DIY guy, and too picky, to keep depending on others for my tunes and...