I have had my Z2 for about a year now and everything was fine just the other day my nav stopped working I can not get any signal anyone know what might have caused it I already tried the reset button still no siganl please help

Have you checked your antenna? Maybe it was nicked,dislodged or played out.Try another antenna and see what happens.

Yeah I tried even the speed sensor does not work I called Pioneer they said it needs to be sent in. Unreal I went to all the stores in town to try and buy a new one and swap it Best buy, Circuit City, and Ultimate Electronics all pulled the Z models off the shelves they do not carry them cause of all the problems you would think Pioneer would get there act together. Plus sear acic Z3 on google people are giving them away foe 900$ brand new somethings up they are all defective units

I'm shocked at the numerous problems that plague the Pioneer line and their lack of Q.A. control.I bought a Premier car stereo 20 yrs ago and it had problems. I also have a home Elite stereo with no problems at all.As much as I like Pioneer I'll never buy another car audio system because of the many problems.