General Motors GPS Navigation Map Disc Part Number 20861673 ver 5.0c Cadillac CD
Part Number:GM # 20861673. This is purely due to normal usage. only 2006 2007 2008 2009 2010 2011 Cadillac DTS (all models). only 2007 2008 2009 Cadillac SRX (all models). Here are the disc specs Map covers USA & Canada.