1999 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 75

yellowblue Your vehicle has one double-sided key for the ignition and all door locks. Rear Access Door (Extended Cab) Your vehicle is equipped with a rear access door that allows easier access to the rear area of the extended cab. To open the rear access door from the outside, first open the passenger's side front door. Then, use the handle located on the front edge of the access door to open it. Your vehicle may also have a key that locks and unlocks the center floor console only (if equipped). If you ever lose your keys, your dealer will be able to assist you with obtaining replacements. You must fully close the rear access door before you can close the front passenger door. 2-3