hi, my last 3 jeeps have all been auto, at present 5 speed auto,
however, i did have a previous jeep that had the same type of problem and
it turned out the fluid level in the trans. was a bit low, but since you have
only 3k miles I would take it back to the dealer it's still under warranty and
i am sure it can be resolved at not cost, also ask the dealer to drive another jeep and see how it feels...all the best, the dealer may have a
additive that they add to the trans..