MY GMT400 Tahoe with DRL, the DRL comes on with the ignition key in the on position, unless you click the parking brake down one click, which turns the DRL OFF.
My 99 Tahoe 2 door had the same issue. I bought this and changed the tire size with it.https://www.amazon.ca/VXDIAG-Multiple-TIS2WEB-Diagnostic-Programming/dp/B01NACTAY8/143-9213689-1581333?psc=
My 1999 Tahoe 2 door has the switch.
I wired a magnetic switch in parallel with it, placing it against the glass in the bottom left-hand corner of the side glass. If I get locked out, I just have to put a magnet against the glass and both doors unlock.
I went with this https://www.gmperformancemotor.com/parts/19420885.html in my 1999 2 door Tahoe.
It dropped right in without any modifications. Just add a tune.
I liked that it was new and had a GM warranty.