I had at one time the instructions and PIN number to enter the "Secret Menu" on my 2005 H2 Navigation. Does anyone have it or can point me in the direction to find it ? Searching to no avail...

 

This may be the one your looking for,

https://www.hummerforums.com/forum/h...default-34305/

Neal

 

Thanks Neal but that's not it for an 05. I do remember there is a button combination, just don't remember what it is. Also a PIN when the menu opens.....

 

Testu

found this on another forum

Info for a 2006 Trailblazer with NAV

Warning...what you do with this info is entirely your responsibility. If you F something up, I can't help you put it back simply because I don't know how to.

Ok with that said....

I found the button sequence to get into the diagnostics screen on the touch screen nav. Doesn't matter what screen you are as long as you have the nav disc in. First hit the "nav rpt" button once then press and hold the config button for ~15 seconds or until the menu pops up. You are now in the diagnostics menu. If you hit the back button in the upper right corner it brings you to more menus. I have no idea what most of this stuff does but it doesn't seem to have anything to let you override the destination input while in motion. Post if you find anything interesting.

 

Thanks Neal. I had finally found this. I was able to go into this menu, under GPS INFO--EDIT and change the year displayed (When you press time in lower right) from 2000 to the correct 2022. Thanks for your effort finding this.

Tommy