Going to have these 2 things checked out (still under 36k fact warranty) as soon as time lets me drop it off, but wonder if anyone is familar with something similar? (04 Screw FX4 w/ 28k miles all stock)

Substantial off and on rattle in/on dash around the area where you can set phone, glasses etc. Sometimes nothing. Sometimes bad. Haven't found what starts it yet.

Very slight strange slipping feeling from very slow accelerating especially sitting uphill. Normal acceleration it's not noticable, but makes me worry a bit.