Applicable Models:Replacement For Allure 2005-2009,LaCrosse 2005-2012,Cobalt 2005-2010,Malibu 2004-2012,G5 2007-2010,G6 2005-2010,Grand Prix 2005-2008,Solstice 2006-2009,Aura 2007-2009,Sky 2007-2010. Advantages:Sianxaido key Shell case buttons wear resistant,beautiful appearance,feel comfortable,closely fit the original car chip. Installation:Remove the circuit board from the original key case,then install the original circuit board into the new key case. Attention:This product does not include Remote/electronic/transponder chip.It's just a plastic shell.There may be a variety of structures inside the key case,pay attention to distinguish before purchase. Customer Service: If you have any problems in the use,please tell us,we will reply to you within 24 hours. CAUTIONS Pls carefully verify your year & make & model in the product details or check your parts pictures,parts No with ours before purchasing so as to prevent wrong purchasement and unnecessary expenses. If you have any questions,please let us know,we will reply you in 24 hours and offer the solve way for you.