Viper 792 in 2003 Hummer H2
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=28711
Printed Date: August 18, 2025 at 5:09 AM
Topic: Viper 792 in 2003 Hummer H2
Posted By: GROMET
Subject: Viper 792 in 2003 Hummer H2
Date Posted: March 20, 2004 at 7:18 AM
Hey all, firt post.
Just had the Viper 791 Installed in my H2. Everything is working correctly but I have a few questions.
1. I can't find any toggle switch. Everything I have read said there should be a toggle switch to disable remote start. Is it just me or should this switch be somewhere under my dash?
2. I could have sworn the installer told me that when I arm the system it would roll the windows up automatically. I don't necessarilly need the ability to roll them up and doen at will form the remote, but I would like them to roll up so the car is secure. Should this work? If not than what would I need to get this functionality?
3. The rear hatch of the Hummer. I can't find a pin switch? there is no way to open the trunk from inside the truck and there is no key unlock for the hatch. so I have no way to test what would happen if the rear hatch got oppened? how would the alarm know to trigger without a pin switch?
lets start with that...
Thanks
Replies:
Posted By: GROMET
Date Posted: March 20, 2004 at 7:24 AM
OK So I can't figure out how to EDIT my post on this Forum...
It is a 791 not 792 Sorry for the misprint.
It should also say FIRST not firt post.
Sorry again.
Posted By: Lurkin
Date Posted: March 20, 2004 at 8:28 AM
1. I can't find any toggle switch. Everything I have read said there should be a toggle switch to disable remote start. Is it just me or should this switch be somewhere under my dash? i have same alarm and i dont think it comes with a switch to disable remote start. 2. I could have sworn the installer told me that when I arm the system it would roll the windows up automatically. I don't necessarilly need the ability to roll them up and doen at will form the remote, but I would like them to roll up so the car is secure. Should this work? If not than what would I need to get this functionality? think you need another module for this to work and would be extra. 3. The rear hatch of the Hummer. I can't find a pin switch? there is no way to open the trunk from inside the truck and there is no key unlock for the hatch. so I have no way to test what would happen if the rear hatch got oppened? how would the alarm know to trigger without a pin switch?
well if there is no way to open the hatch you should be fine, they would have to smash the glass to get in. plus i think it has current sensing if the hatch is opend and it turns on a light it will set it off.
Posted By: Velocity Motors
Date Posted: March 20, 2004 at 8:50 AM
1. The toggle switch will be hidden from view to avoid possible alarm valet mode turn on. You will have to ask where the installer hid the toggle switch. 2. The window roll up feature will be either a module they installed for you ( where you would have had to pay extra for ) or it would have been part of the door lock interface module that you had for bypassing the OEM security and door lock system on the Hummer. If the window option doesn't work with the interface module alone, then you will need to use window module to control them when armed because I've heard that there were some databus issues with some of the GM vehicles where they would not always roll up the windows when armed. 3. The hatch wire can be accessed from the BCM behind the headlight switch. This is where the installer grabbed the hatch trigger from. You do not need to open the hatch to install a pin switch, just use the OEM wire for this connection. ------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: GROMET
Date Posted: March 20, 2004 at 9:04 AM
I forgot another question.
The alarm is set to passive mode. When it arms, it beeps and gos into arm mode but it dosn't trigger the door locks. I would like it to trigger whn it arms. it this doable or should it have been that way in the first place?
Posted By: Velocity Motors
Date Posted: March 20, 2004 at 9:16 AM
Really ?? It should trigger the door locks regardless of active or passive arm ? Take this back to the installer and get them to set this ( if it's programmable ) but from my experience, even under passive arm, it should still lock when armed.
------------- Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: jaxman
Date Posted: March 20, 2004 at 9:24 AM
If the alarm is set to passive mode then it will arm but NOT lock the doors.
If you want that then tell them you want also PASSIVE LOCKING. These are 2 separate functions. ------------- Damn cold here ... 
Posted By: kgerry
Date Posted: March 20, 2004 at 12:23 PM
it sure would be a drag if you have your keys in the vehicle and exit it for 30 seconds only to find you are locked out of your vehicle... if you program this feature on, make sure you have a spare key somewhere.... also, the toggle switch does not control alarm valet turn on, this is controlled by the momentary push/valet switch. The toggle switch only allows you to shut off the remote start function, some shops dont even put this switch in... but it should be there under the dash, so if you take your vehicle in for maintenance you can shut it off to prevent accidental RS. ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
Posted By: auex
Date Posted: March 20, 2004 at 2:04 PM
Just take the vehicle back to the place you bought the alarm from and have them address your concerns, and while you are there have them set the alarm up to the way you want it. Also, passive locking and passive arming must be turned on to have the doors lock with passive arming.
------------- Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
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