I have an 04 Titan that was surging at highway speeds. I could shut it off and start it back up and it would be fine for 40-100 miles. No surging the last 250 miles or so. The VDC, BRAKE, and SLIP light came on, but didn't seem to do it while the surging was happening. Before i left for the trip, I put the truck in 4lo, and the same lights came on. I am 650 miles from home and can't afford a mechanic. Recent new parts: brake booster, IPDM relay, front brake pads, and rear axle seals.