Nav unit not working on 2015 HD Denali

[Sabla]

My Nav unit is showing me in crazy places. Is there a reset I can do or will I need to take it to the dealer to get worked on? Any help please.

This is when I turned it on at my office. Obviously I didn't park in the middle of a body of water.

[CAtaylor]

Does it ever work right? Are you in a city with high rise buildings?

[Sabla]

It worked at first. Doesn't anymore.

 

I am in oklahoma. Not a lot of huge buildings

[jackl4]

Careful. They may say you voided the warranty by driving through a lake.

[Smoothbassman]

Same happened to me on my 2009 RAM. Bad GPS antenna was my situation. Replaced under warranty, no more issues.