Went through the same issue with my 2002. Tried a few new fobs, could never get truck to go into program mode. A tech at a local audio-alarm shop tried with the same results. There are a couple of "how to's" on YouTube but none of them worked for me. My son has an 03 and I tried giving him the new fob. His truck entered into "program mode" using one of the YouTube procedures, but would not program fob.
Ended up just getting a new fob case online and put the old inners into it. Still just have one fob and one in my parts box which I will try to get programmed to my sons truck next time he visits. Lots of threads on this site addressing this issue.... Frustrating... Chap
Ended up just getting a new fob case online and put the old inners into it. Still just have one fob and one in my parts box which I will try to get programmed to my sons truck next time he visits. Lots of threads on this site addressing this issue.... Frustrating... Chap