[JaxChris]

Edited for clarity:

If you're talking about "almost" coming to a complete stop as you turn into your driveway, it is a bug in the wheel sensor reporting causing a premature downshift on slow right hand turns. It's not a mechanical issue and affects all automatic Camaros, including the ZL1. Instead of downshifting 3-1 at 0mph+1 second, it is downshifting 3-1 at 2.5mph when making tight slow turns. GM made a lot of performance related tweaks to certain models, in the name of lap times, but at the expense of driving pleasure.

The wheel sensors are not being averaged in 'normal' operation. Instead gear selection is made using the slowest drive wheel sensor only. During tight turns you have a problem. You just started moving forward from a stop, the car tries to do a 1-3 upshift quickly when in ice/touring/sport to minimize unnecessary torque, then you make a tight turn (driveway or parking lot) and now the rear inner tire is rounding off to 0mph while the front outer wheel is moving at 4+ mph to turn you. You just completed the 1-3 upshift and now that one sensor is causing the TCM to perform a 3-1 downshift, as if the vehicle is deadstop. And the vehicle starts to lung, the downshift causes torque to increase and the vehicle either jerks or chips the rear inner tire in response. If you're in a parking lot you plan to move more than the 35-40 ft of your driveway, so your foot stays on the gas and you upshift again. If you're in your driveway, you've conditioned yourself to just left off the gas and hover the brake as the car pulls itself up the driveway effortlessly in 1st gear.

You can try a couple items to test it.

1. Come in wide and a little faster to keep the rear inner wheel moving and then tap brake once you're straight again to avoid the 3-1 downshift
2. Place the vehicle in manual mode and place yourself in 2nd gear prior to making the entrance (the 2-1 downshift doesn't seem as premature as the 3-1 downshift -- likely because the car is able to idle in 2nd but not 3rd)

In an effort to shave small amounts of time off those lap times, GM appears to have chosen slowest wheel as the value for triggering downshifts. This has a benefit in 'Performance Mode' of deciding to downshift right as you cross the apex of a turn. Traction control and stabilitrak read each wheel sensor in order to function, but the transmission acts based on a single value provided by the BCM. It doesn't change which value is read regardless of which mode you are in.

Anything with the T87 or T87A TCM have this low-speed turn-in jerking. It would've been nice if with the T87A that GM would've added a different measurement for Performance Mode which would've used slowest wheel speed and then all other modes relied on average wheel speed (like the speedometer does). Sadly, I don't think the memory space was provisioned for dual mode source values. None of the settings I've seen HPtuners unlock for the Camaro show the transmission parameter source values. Could be that requested values are hard-coded and there is no way for us to tell the TCM to ask for something different.