I have a 2008 silverado ltz vortecmax 4x4 35's and 7.5in lift Diablo 87 tune and recently my abs and parking brake light come on at the same time when I get up on the highway. It doesnt come on all the time seems to only come on at higher temps and highway speed. Everything works fine as it should just the lights come on. Any comments or suggestions as to what I should do to get it fixed would be greatly appreciated.

 

I have the same problem with my '02 silverado. Ive searched around and read that it could be the computer, or find the ground wire to your ABS and take it off amd clean it. However i have read that my year silverado it is a pretty common problem and a lot of times it is the whole system which is pretty expensive to fix. I just havent had much time to mess with trying to fix it yet.