Rossi6998

I have an automatic transmission. While driving the car, I did a rapid acceleration and a message appeared on the DIC that said "Performance Shift Active."

After the message appeared, the car sounded like it was running at a high RPM before it shifted into the next gear whether increasing or decreasing speed. It reminded me of driving a stick. I was in Sport mode when this occurred.

Does anyone know what this means and the purpose behind it? I can't find anything while doing a search on the forum or google. I also can't find anything in the owners manual.

Thanks

onyx_z71

It is Performance Algorithm Liftfoot. It's supposed to go into that mode if you blip the throttle. Holds the gears like you would drive a manual aggressively. It goes back to normal shifting when you drive in a normal manner after so many seconds.

Rossi6998

Thank you. How do you know this? Do you know where I can read more about this feature?

**Update - I found additional information on the internet. It appears they have this feature in the Cadillac. Again, thank you!

bjhayes

I have a 2009 Pontiac G8 GT and it has this too. If you don't know about this feature then it can be a little unnerving to have your car hanging at high RPMs and not shifting.