2002-2009 Chevy Trailblazer SUVs used keyless entry systems that had a 3-button remote with FCC ID MYT3X6898B. Remotes Unlimited has this keyfob on sale now for a very good price. If you have a 2002, 2003, 2004, 2005, 2006, 2007, 2008 or 2009 Chevy Trailblazer, follow this link to buy a replacement keyless entry remote at a great price.
These remotes are new and user programmable for all applications. You get instructions for self-programming plus free technical support. What more can you want?