Hey guys! Been having some trouble with a 04 H2 Supercharged. Please see the video to understand what im talking about!!
movie 2.mov - YouTube

 

Maybe a short in the ignition?

 

Id say the electronic part of the ignition switch inside the steering column is junk.

Is there an aftermarket alarm or remote start installed or any indication one was previously installed and removed?

 

Not that I know no...

 

The problem is most likely a defective ignition switch. You will need to get a new one. The part number is GM# 15242754. It is a common GM part and most dealers will carry it as a stock item. Cost is about $40.

Procedure:

Remove the negative connection to the truck battery.
Remove the bottom cover of the steering wheel column cover as described in the stuck key problem procedure.
The key switch assembly can be seen on the bottom right side of the steering column.
You need to unplug the switch and then press in the spring loaded tabs that hold the switch in place to slide it out. There are several cables that may have to be moved around a bit but DO NOT UNPLUG THE LITTLE WIRES THAT GO TO THE TOP OF THE COLUMN If you do so, the truck will think this is a theft attempt and set the security alarm.

Once the switch is out, get the new switch and make sure the gear of the new switch is in the same position as the one that was removed. Put the new switch into the proper position and plug in the connector

Hook up the battery

Test that the switch works. If the gear is in the wrong position, the key either won’t come out or the key will not move to the start position (the spring loaded start position). In either of these cases you need to remove the switch and re-position the gear.
Put the bottom cover back on the steering wheel column. Be sure to have the pieces aligned properly as it you don’t, you can screw up the locking tabs.

 

Dude tank you so much. Ill try that this week! thank you

 

Guys, got some news. The ignition switch was allready replaced by a new one. I was hoping it would solve the problem, surprise surprise, nothing happens. Everything is the same. Any more ideas?

 

were the little wires that relate to the alarm disturbed? because if they were that will not allow it to start. have you tried disconnecting the positive battery terminal for 60 seconds and then reconnecting it.??