Wiring problems of the 2006 GMC Sierra 2500

Was driving home from work. Smelled something hot, then smoke came out vents, within less than a minute flames were coming out from under passenger's side dash. Had to pull over and put out fire with fire extinguisher. If there had been a passenger like my children they would have been severely burned or killed. I am a gm technician and the fuse for the hvac did not blow and taking away power did not stop the issue. I know that there are issues with the resistor wiring. My vehicle systems all worked fine before the incident and gave no indications of failing. This incident happened fast enough that the vehicle would have been totally in flames if a fire extinguisher was not right handy. You are aware of this issue why is nothing being done about it. Gm is very lucky that I did not have a passenger tonight.

2006 GMC sierra hd 2500 - 4x4 crew cab slt - while parked in our driveway and with keys out of the ignition, the air bag deployed. We called the dealership ferguson pontiac GMC and we were told that it was not possible and out of warranty. We had our mechanic tow it in. They hooked up the computer to see if a sensor had tripped the air bag and the rug started to smoke. They removed the melted mat to the rug and found the wiring harness was melted away. Bottom side of the rug was burnt. We went to GMC in person with pictures and asked how this could happened and were told "it can happen at anytime with sand and moisture around the wiring harness". We were told this could have also happened while driving the vehicle. We want this truck fixed and assured that it will not happen again. This could have caused a forest fire, a horrible accident, and or death. No one seems to care. We have several GMC vehicles and are concerned if the other ones will do the same. We are not satisfied with their complete disregard for our safety and did not want to even look at it. We have pictures if you would like us to email them to you. This is out of the normal realm of "warranty" and believe it is gm's responibility to fix this and make sure it doesn't happen again. Also the public needs to know that this "can happen at anytime". This was quoted from [xxx]the service manager at ferguson ponitac GMC. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).