Compatible with following vehicles
Replacement for Chevy:
1997-2005 Astro
2007 Avalanche
2002-2006 Avalanche 1500/2500
1996-2005 Blazer
1997-1999 C1500
1998-2000 C2500/C3500
1998-1999 C2500/C3500 Suburban
1999-2002 Camaro
1998-2008 Express 1500/2500/3500
2004-2005 Classic
2005-2007 Cobalt
2004-2008 Colorado
2000-2008 Impala
1997-2008 Malibu
1996-2004 S10
1999-2010 Silverado 1500
2002-2007 Trailblazer
2005-2009 Uplander
1998-2007 Tahoe
2000-2007 Suburban 1500/2500
1997-2007 Monte Carlo
2000-2008 Corvette
2005-2007 Equinox
2006-2011 HHR

Replacement for Buick:
2005-2008 Buick LaCrosse
1996-2005 Buick LeSabre
2005-2007 Buick Terraza
1997-2005 Buick Century
2008 Buick Enclave
1997-2004 Buick Regal
Replacement for GMC:
1996-2005 GMC Jimmy
2004-2008 GMC Canyon
1999-2010 GMC Sierra 1500
1999-2004 GMC Sierra 2500
2001-2010 GMC Sierra 2500 HD
2000-2007 GMC Yukon XL 1500/2500
1998-1999 GMC C1500/C2500 Suburban
2002-2007 GMC Envoy
1998-2008 GMC Savana 1500/2500/3500
2007 GMC Sierra 1500/2500/3500 HD Classic
1998-2007 GMC Yukon

Replacement for Cadillac:
2003-2008 Cadillac CTS
2006-2011 Cadillac DTS
1999-2007 Cadillac Escalade

Replacement for Oldsmobile:
1999-2004 Oldsmobile Alero
1998-2002 Oldsmobile Intrigue

Replacement for Pontiac:
2005-2008 Pontiac G6
1996-2005 Pontiac Bonneville
1996-2005 Pontiac Grand Am
1998-2008 Pontiac Grand Prix

Replacement for Hummer:
2003-2007 Hummer H2
2006-2008 Hummer H3

Replacement for Saturn:
2003-2007 Saturn Ion
2002-2007 Saturn Vue