Ok, so on my way home from work today, just for laughs, while at a stoplight, I turned off the overdrive (Tow-Haul Control). The little light didn't come on in the handle, and it still shifted into overdrive.

Now just tonight, driving home my automatic lights didn't come on. I figured it wasn't dark enough, so when I pulled into the shed, I closed the big door and still nothing.

I checked the owners manual for fuse information, and I didn't see anything that would relate to these issues. The only thing I can think of is: I just got dual exhaust done last Thursday, I think maybe the welder current blew something out? Ive put on 200 miles after the job was finshed before this stirred up.

So, does anyone have any ideas? Thanks!