Hi there guys. A couple days ago I was driving down the highway and the ABS and brake light came on. Wasn't sure if it was anything big so I pulled over and shut truck off, restarted and lights were off. I asked someone and they said it was common and no big deal. Now, last night both came on, won't go off and now my speedometer wasnt working at low speeds in town but then when I would get to 45mph or so it would jump up and when I would slow down, it would drop to zero again. Is this an issue with the batteries or something bigger or are they separate problems? I have the 99 and no code reader so just trying to figure it out! I did have brakes changed about a month ago and the mechanic said my drivers side battery was weak. I plan on replacing both batteries this morning and hopefully that will help! The batteries are from 07 so it's probably time anyways. Thanks for your help guys!