I own a 2006 Jeep Commander 5.7L Hemi Limited. The vehicle starts fine but wont engage when I put it in reverse or drive. I went and purchased an error code reader, and two codes popped up: P0867 and P0841.

I've been scouring the net for answers, and for the error codes - pretty vague responses and seems it could be a number of different things.

I phoned the Jeep dealer in town and he recommended bringing it in to replace the fluids and filters. Anyone be able to give me some advice or insight in to what I should expect? Im really hoping I don't have to replace the transmission!