If you get a new keyless entry remote (key fob) or change the battery in your remote you may need to reprogram your vehicle to accept the remote. This procedure works for a lot of 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and some 2008, and 2009 GM (Chevtolet and GMC) vehicles.
Read moreKeyless entry remote programming for 1998-2006 GM, Chevrolet, GMC