The 2003 GMC Sierra Denali was part of the same Sierra Denali generation produced from 1999 - 2007. Sierra Denali's of this generation consist of the same major mechanical parts with only minor variations from year to year.
“Very thorough set of instructions; sometimes a video is better than just reading & looking at pictures. ”
“Thank you for posting. That was a great video. It worked like a dream. It took me less than 15 min to change out the bulb on Charger 2009. ”
“Excellent step-by-step instructions. Thank you very much! ”
“thanks for the instructional video! ”
“Just wanted to say AWESOME!! Great sight and I WILL be back. Car maintenance made super easy! THANK YOU!!!! ”