When your Jeep's steering shakes after hitting a bump, it usually means your front suspension has developed play. The most common cause is a worn track bar bushing, but loose tie rod ends and worn ball joints are also frequent culprits. The bump triggers it; worn parts let it continue.
That brief bump sends a shockwave through the front axle. If anything in the steering or suspension system has even a tiny amount of looseness — a soft bushing, a worn joint, a loose bolt — that energy doesn't dissipate cleanly. Instead, it starts a feedback loop where the axle wobbles side to side and the steering wheel follows. The whole thing amplifies fast, which is why what feels like a small bump can turn into a frightening shake within a second or two.
If your Jeep is doing this around Ann Arbor roads — especially on highway stretches like I-94 or M-14 where the expansion joints and frost heaves are rough — it's worth having the front end inspected before it gets worse. Hoover Street Auto Repair on Ann Arbor's west side specializes in exactly this kind of diagnosis and can pinpoint which component is causing that wobble.