Alright here is the story. I have an 03 Chev 1500. 5.3L motor. It is having a problem with the security system. When first starting on a normal truck the message board in the dash comes up as driver 1. Mine comes up as unknown driver. Sometimes it will lock out the stereo but not always. The 4wd and automatic lights do not work and when the lights are turned on manually the gauge lights don't come on.
The door locks don't work either. I don't have the remote so not sure if they work with than or not. This is a problem that just started happening all of the sudden. I have checked fuses and called dealers but that has done nothing. I'm not sure where to look next? I'm sure there are more details that I'm forgetting but that's the main stuff.
Thanks in advance