A reader asked whether the 3-button GM keyfob used on the 2003-2006 Chevy Silverado discussed in my last post (see link here) was used on any other vehicles. The answer is yes. Whenever a keyless entry system is used on a Chevy pickup, it also is used on the GMC pickup, so the 3-button remote with FCC ID LHJ011 was also used on the GMC Sierra pickups from 2003 through 2006. Also, this remote was used on several other vehicles, including the 2003-3006 Chevy Suburbans and Tahoes, 2003-2006 Cadillac Escalades, and 2003-2006 GMC Yukons.
See 3-button GM remote with LHJ011 at this link.
All of these applications are user programmable. Remotes Unlimited includes programming instructions and free technical support with all user programmable parts shipped.