Daytime Running Light Bulb is a direct fit for the following:

2011-2017 Buick Regal
2002-2006 Cadillac Escalade
2003-2006 Cadillac Escalade ESV
2002-2006 Cadillac Escalade EXT
2002-2006 Chevrolet Avalanche 1500
2002-2005 Chevrolet Avalanche 2500
2003-2009 Hummer H2

Genuine GM Part Number: 15199562