Stable link
 

Guy's just got threw lowering the rear 7in of my 2011 gmc reg cab and it threw every light on the dash, stable link, traction control, you name it, now, it does have short ass tires on it, went from 275/55/20 to 315/35/20, and no tires sensors, thinking it may be the short tires thowing it off, I had this happen before on my 13 when the rear end banged the frame and cut the wire that controls all this, haven't had time to look back under it yet, any ideas? THANKS!

Did you unplug the wire in the back? I had this happen when I lowered a tahoe and I forgot to plug it back in.

I'm going to check when I get home, hell could have I was in such a hurry, I'll post back. THANKS!

I've got 275/45 tires. As long as they tires are all the same diameter that shouldn't be an issue. Probably wheel speed sensor. Also if you haven't gotten an alignment and your steering wheel isn't centered that'll do it too.

U get this worked out?

Man I did, after I put the front wheels on which are about the same size tire as the rear just staggered, I ran up the road with the 275/55/20's on it just to see if it would vibrate, ( which it does), had the 275/55/20's on the front then, it must have been throwing the computer for a serious loop. THANKS!