Description: Express, savana. Silverado, sierra. Tahoe, Yukon, Escalade. Suburban, Yukon XL. Escalade ESV. Suburban 3500hd. This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors