This is a list of trucks it may have been used on. Please make sure that they have the HB-3 & HB-4 lights.
2009, CHEVY/GMC, TRAILBLAZER/ENVOY
2008, CHEVY/GMC, TRAILBLAZER/ENVOY
2007, CHEVY/GMC, TRAILBLAZER/ENVOY
2006, CHEVY/GMC, TRAILBLAZER EXT/ENVOY XL
2006, CHEVY/GMC, TRAILBLAZER/ENVOY
2005, CHEVY/GMC, ENVOY XUV
2005, CHEVY/GMC, TRAILBLAZER EXT/ENVOY XL
2005, CHEVY/GMC, TRAILBLAZER/ENVOY
2004, CHEVY/GMC, TRAILBLAZER EXT/ENVOY XL
2004, CHEVY/GMC, TRAILBLAZER/ENVOY
2003, CHEVY/GMC, TRAILBLAZER EXT/ENVOY XL
2003, CHEVY/GMC, TRAILBLAZER/ENVOY
2002, CHEVY/GMC, TRAILBLAZER EXT/ENVOY XL
2002, CHEVY/GMC, TRAILBLAZER/ENVOY