H2 Navigation Lockout Override

[Curt Vendel]

Anyone know the color(s) of the input wire going into the H2 Navigation system that senses motion which causes the Nav system to lockout input while the vehicle is being driven???

Yeah, I know its meant to be a safety feature - what the idiots at GM didn't realize is that the PASSENGER could be handling Nav input during driving... There is no override in the software, though I heard there is a cumbersome maintenance mode you can enter, but have to do it each time you start your Hummer, so...

If I detach the tac sense or whatever is feeding into the Nav system, then it will always be available for entry.

Any help would be appreciated, thanks.

Curt

[Curt Vendel]

Anyone know the color(s) of the input wire going into the H2 Navigation system that senses motion which causes the Nav system to lockout input while the vehicle is being driven???

Yeah, I know its meant to be a safety feature - what the idiots at GM didn't realize is that the PASSENGER could be handling Nav input during driving... There is no override in the software, though I heard there is a cumbersome maintenance mode you can enter, but have to do it each time you start your Hummer, so...

If I detach the tac sense or whatever is feeding into the Nav system, then it will always be available for entry.

Any help would be appreciated, thanks.

Curt

[kacyk]

From my experience the VSS wire is a fundamental part of the whole package. Your location icon will jump all over the place and render the GPS useless. I know, I retrofit my 2003 with a 2005 TNR and the guys at the stereo shop forgot to connect the VSS. I thought the Nav was broken.

IMO - I'd try to find another way to bypass it without messing with the VSS.

[Curt Vendel]

Hmmm....

I think the next step is just remove the damned thing and sell it and put in my own 9" touch screen CarPC with a far better Navigation package and something with a multi-CD system as well, the Nav system is nice and all, but it lacks a lot of forward thinking in it and is just not the most user friendly system I've seen...

I bought my wife a 02' Acure MDX and GM could learn a tremendous amount about user interaction and device integration from Acura, first and most importantly the Nav system is a seperate device under the passenger seat, the CD player is a seperate in-dash DIN module capable of holding 6 CD's plus a cassette deck (which is great for an iPOD with cassette interface.

The Acura system gives you the option of bypassing the lockout with a long and ugly legal screen that you have to press OK to I think it was twice, but perhaps three times before it finally allowed the bypass.

Lastly the H2 Nav is very slow to update the screen and its Navigation profile for a destination on short streets and many turns.

So, given what you've mentioned, I really think the next route will be to pull the Nav system and install a CarPC with Nav, CD changer, DVD entertainment system and XM Radio interconnect...

In the end I'll wind up with a far better system with far more user friendly interface and all the features I want and none that GM shortsightedly imposed.

Thanks...


Curt