The speedo area always stays back lighted along with a little message board that displays "Shift into Park" or words to that effect. I like the fact it stays lighted as I can look in during my final walk around and clearly see the gear indicator in "N"
I have towed for 6 hours non-stop and the car started like the battery was new.
I found the backlighting staying on a little unnerving at first and started carrying booster cables but never needed them.
I am in Canada so I ordered the wireless lights online from Princessauto.com. Do a google search for Blazer wireless tow lights and you will get lots of hits for places in the US that sell them. There is a YouTube video from Blazer that shows how they work.
Oh yeah, get used to the key in ignition alarm beeping in your ear while putting your supplemental brake in the car. It stops dinging when you close the door. It drove me nuts at first but now, not so much!