2004 Trailblazer 4x4, 2016 ATS-V, 2014 CTS-V Wagon, 2018 Audi A7
On the whole my cruise control works fine on my '04 Trailblazer LS 4x4. However, when it glides downhill, even on the downside of an overpass, the car ''bucks'' or ''jerks''. Any clues as to why it does this? Flat roads it's great (thank goodness I live in Florida).