15184 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO REPLACE THE MUFFLER AND TAILPIPE ASSEMBLY ON CERTAIN 2015 MODEL YEAR CHEVROLET COLORADO AND GMC CANYON VEHICLES EQUIPPED WITH A 4-CYLINDER ENGINE (RPO LCV). SOME VEHICLES MAY HAVE BEEN ASSEMBLED WITH A MUFFLER AND TAILPIPE ASSEMBLY THAT WAS NOT COATED CORRECTLY. THIS CONDITION COULD AFFECT THE APPEARANCE OF THE TAILPIPE OVER TIME.
