Sounds like your right hand door module is bad. I had this problem on my wifes 2003 Tahoe when it was 3 weeks old, and then about 2 weeks ago my Duramax did it. I was unable to my key-less entry at all. And nothing would work on passenger door. Click Door Module here for information on the door module.
A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more!