One problem related to wiring has been reported for the 2004 Chevrolet 1500. The most recently reported issues are listed below.
I bought my 2004 used with 116,159 miles on it. I noticed the blower motor for the a/c and heater would act up on its own and thought it was just the auto climate control it has. I smelled electrical wiring burning at different times but could noy find anything burnt in the wiring after inspecting the wiring under the dash and hood. On Feb. 25,2014 I went to the grocery store and when I shut my suburban off the blower motor stayed on. I tried turn the key on and off but the motor stayed on. I went in the store and when I came out 1/2 hour later the blower motor was still running. Now every time I turn the suburban off the blower keeps running so I had to pull the fuse out so it would not run the battery down. I googled the problem and found that this has happened to several other vehicels. After finding out the part that is defective is called a blower relay resistor module I called the parts store to get the part. They said they could not get the part and to try the dealership. The Chevrolet dealer had the part and I asked if there happened to be a recall on tha part. They wanted my VIN. # so they could check my suburban and said that my suburban was not included in 'that' recall. That sound alittle weird the way he said it so I got on the web and checked myself. There is a recall # 10240 that discribes the exact same proublems with other 2004 suburbans that is happening with my suburban to the "t". It said in the recall that the problem could cause a fire. Does someone need to die before the recall is expanded to vehicles,the same make,model and year is incuded!!!!!!.