Entering GPS addresses while moving

I have an 2006 H2 with GPS.  It is impossible to add an address or look up a POI once the car is moving.  Does anyone know how to disable this lock-out feature? 
Also is it possible to recieve Vorizon cell calls on the Onstar without going through Onstar?

The nav system must receive speed info from the pcm. If its in the form of packets over the obdII bus, then not much can be done, as I think the nav system checks the vin number that way for security. If its just a wire with speed data one it (pulses, voltage, etc) then it could be disconnected. There might be some other hack (button combo, etc), but I dont know of one.
 
I agree, its a pia, but its gm covering their ass. did you read the owners manual? About 1/2 of it is warnings about every stupid thing you can think of.

You do realize the reason for why it's there right!? LOL! 
Maybe ImportKiller has some advice for us here .. Impy!?  Any bypass modules available for the H2's from for example logjam or PAC that you know of!?  I had one (PAC I believe) on my Alpine aftermarket back in the day to disable this feature on the NAV and also allow DVD's played up front while moving ... A must have in my opinion but could see how it could become a safety issue for some people ...

sorry guys...I have been neglecting my responsibilities in this room...my bad.
 
Ok, lets get down to business....
 
What you are looking for is what is called a GM navigation bypass. Here is a description of the unit...let me know if this is what you are looking for:
 

MANUAL OR AUTOMATIC UNBLOCK OF YOUR DVD OR AUX INPUT PICTURE - NO MORE RESTRICTIONS

INPUT ADDRESSES, MANAGE YOUR ROUTE, POINTS OF INTEREST, ETC. WITHOUT RESTRICTION

XM CATEGORY SCROLLING UNLOCKED ALONG WITH ALL OTHER RADIO AND CD PLAYER RESTRICTIONS UNLOCKED

ONSTAR DIALING UNLOCKED

BLUETOOTH FUNCTIONS UNLOCKED ON EQUIPPED VEHICLES

COMPLETE PLUG-N-PLAY HARNESS, 12V ACCESSORY OUTPUT AND VIDEO CONNECTOR FOR ADDITION OF REAR VIEW CAMERA.

 
 
Basically it will allow you to input anything you want anytime you want no matter if the truck is moving or not.
 
Price is $250 for this unit.
 
Now moving on to the onstar...YES they make a GM onstar bypass ... here is the description on that:
 

 
UNLOCK YOUR ONSTAR
AND
USE IT FOR YOUR BLUETOOTH PHONE!!!
WORKS WITH LATEST MODEL GM VEHICLES!!!
FULLY INTEGRATE YOUR AFTERMARKET HANDS FREE KIT
TURN ON ONSTAR FOR YOUR OWN CELL PHONE KIT
(COMPATIBLE WITH PARROT, MOTOROLA, AND OTHER UNIVERSAL BLUETOOTH HANDS FREE CELL PHONE KITS)
 
ACTIVATED BY MUTE FUNCTION OF AFTERMARKET HANDS FREE KITS
-          WHEN CALL IS RECEIVED, FACTORY RADIO WILL AUTOMATICALLY SWITCH TO ONSTAR WITH SOUND FROM YOUR BLUETOOTH CELL PHONE!! 
FULLY COMPATIBLE WITH ONSTAR EQUIPPED VEHICLES

-          NO LOSS OF ONSTAR FUNCTION!! 
FULLY COMPATIBLE WITH VEHICLES NOT EQUIPPED WITH ONSTAR

-          THE GM HANDS-FREE KIT WILL PROVIDE ALL NECESSARY COMMUNICATION!! 
UNIT HAS ACCESSORY POWER OUTPUT TO SUPPLY POWER FOR YOUR HANDS FREE KIT

-          POWER WILL TURN ON AND OFF WITH IGNITION KEY OPERATION!! 
ONE HANDS FREE INTERFACE FOR MILLIONS OF GM VEHICLES
 
price for that is $99.
 
I have used both in the past and they both work very well.

Is this navigation bypass only good for the H2, or will it work with the H3 NAV system as well?

You rawk Imp!

hummerboy, it should work in any GM Navigation radio.
 
 
Thanks Zyne...I try my best.

Yes, thank you kindly.  I'm trying to figure out what "goodies" I will want for the factory NAV system I am going to install.  The unit you mentioned has most of the features I am after, except that it only has 1 auxilary video input usally for a backup camera, which I will be installing.  PAC make a similar unit that has 2 video inputs, but does not have the ability to unlock the address input restriction.  I guess I need to figure out which features are most important before deciding.  Information here has been very helpful.

Hey IK,
 
Where can I get a GM navigation bypass??

LHB...I believe you can hook up an additional video switcher that will connect to the one input of the navigation unlock module and wil give you 2 or 3 video inputs. You will just have a switch that you put into position a,b,c to select which device is to be viewed. The nav. unlock module will always play whatever feed it gets into the one video input, the switcher will just decide what unit is actually sending a signal to that line.
 
you can buy them here...they don't have hummer's listed but they will work.
http://www.coastaletech.com/GMLOCKPICK.htm
 

Thanx!

Yes, Thanks.  I will contact them and make sure it will do all that I want.

I had called coastaletech a few weeks ago wondering if the bypass would work on an H3 and I was told that it would work on an H2 and the 06 H3 but not on the 07 H3.  I have called around and haven't been able to find a bypass for the 07 H3.  Someone correct me if I am wrong.  I don't think there is anything out there for the 07 H3 but a few companies are working on it.