When accelerating hard at low speeds, my 2001 Grand Cherokee sticks in 1st gear and will only change up if I lift off the throttle then re-apply. Anyone have any ideas what might cause this?
Or a brake band is to be replaced (like in it being worn), or adjustment of it if possible. Worst would be the automatic gearbox control system. You can have it checked at companies specialized in automatic gearboxes, especially those specialised in the type you have.