Check engine light on with code p1709 and VSA light is on?

Yep, this would be a gear range sensor issue (neutral safety switch). Here is the location so you can swap it out and then clear the codes. Check out the images (below). Let us know how it goes.

thanks for the prompt response.
So I ordered the part, but the earliest i can get it is Friday..
That said, (and I'm guessing i already know the answer to this), but is it safe to drive it (maybe 30mi/day) until then, or would I be doing significant damage to the transmission by doing so?

I would not drive the car, I don't think it would shift correctly anyway.

it actually shifts pretty normally.
does that change anything as far as the diagnosis?

It might also be worth noting that every once in a while, when accelerating from a stop or low speeds (again only under light throttle), it will have a bit of a bucking bronco effect.

Okay, it might be fine to drive but I don't want to tell you that and then have something bad happen.

Noted. If i do, it'll be at my own risk.
Ill let you know if NSS replacement fixes the dash lights.

Sounds good, be sure to clear the codes once completed.

Installed the NSS and cleared the codes.
After turning the key to the acc position, the code/lights came right back after a few seconds.
What should I look into next?

Yep, is because the shifter is not seeing what the transmission is which can be due to a worn shifter cable, can you move the shifter into park through 1st gear cleanly?