I am unable to shift my truck into reverse and park. Transmission slips on 2007 Honda Ridgeline

it started all of a sudden. it has just 100,0020 miles on it

Asked by for the 2007 Honda Ridgeline
2 answers
PLEASE clarify the part about not shifting into 'park'. You may have a problem with the pass. side axle and intermediate shaft stripped splines or seperating. Any grinding noise?
it sounds your tranny is on its way out I would take to a tranny shop and have them diag it