Steering Anti-theft Device problems of the 2000 GMC Sonoma

Since I got this vehicle on 9/26/00 I have had nothing but problems. When driving sometimes the security light would come on and flash, causing me to think it may shut down on the thruway leaving me terrified. Atleast 40 times I would get into this vehicle and it vehicle and it would not start, if left sit alone for 10-15 min. It would start no problem. Well I dont have 10 min to wait every time I need to go somewhere. The doors on the drivers side keep falling out of alignment, causing an untrue seal and allowing for water to leak in to the truck. This leak has caused the vehicle to reak of mildew on the inside , well this is a serious problem that nobody seems to want to deal with. I have chronic asthma and bad allergies which trigger attacks, the last time I picked it back up from supposedly being free from smell , it still reaked of mildew and I did not even get home from dealer before I started to weeze from asthma attack symptons. I called the 800 number for GMC 3 times and was told that the smell will go away after time and I would have to deal with it, I was also told this at the dealer. This was the 5th time I took in for the smell and miscelanous things, and I was told that the smell was never fixed because it was not noted on the bill the first 4 times, again not my problem. I could go on forever , but I will save it for the phone. I will tell you that in the last 3 weeks I have had my truck for 5 days, and it is going back to the dealer on 7/26 to fix the smell and repaint the door rocker that was scratched by the dealer when alignment of the door took place. Thank you for your attention and urgency , I am at my end with the dealership and need an allye?.