2003 GMC Sierra 1500 Pickup Owner's Manual - Page 100

Rear Doors vehicle Your may be equipped with a rear access door(s) that allows easier access to the rear area of the extended cab. To open a rear access door from the inside, the front door must be opened first. Then, use the handle located on the inside of the rear access Youmustfullyclose a rearaccessdoor close the front door. before you can Tailgate You can open the tailgate by lifting up on its handle while pulling the tailgate toward you. To shut the tailgate, firmly push it upward until it latches. After you put the tailgate back up, pull it back towards you to be sure it latches securely. 2-13