The Crew Cab offers roomy rear seats, comfortable for two adults, capable of three. Folding down the rear seats reveals a large, flat cargo area. This area is a godsend, whether hauling a big dog or anything you don't want exposed to the elements or other people. The seats are split 60/40 for maximum utility.

The new 2002 Sierra Professional models feature a full-length, custom-designed console, extending from the instrument panel to the back of the front seats. The center console has a front compartment, providing concealed storage for a personal digital assistant, cell phone, and two auxiliary power points to charge them. It also provides a storage trail for smaller items, such as maps, gloves or CDs. It has an oversized Big Gulp cupholder and a second temperature controlled cupholder than can keep beverages hot or cold when the ignition is on. The center console accommodates a seven-quart capacity thermal electric cooler provided, which can keep drinks and food cold or warm. The cooler runs directly off the battery and provides power continuously even with the engine off. the center console can be easily converted to handle hanging file folders. Two power outlets ion the rear of the console are useful for charging battery packs for power tools. There's also a rear under-seat storage container the offers 2 cubic feet of space for storing tools like rotary hammers and saws. A smaller container holds fasteners and other smaller items. The console and under-seat storage can be locked.