The seats are big and cushy. Whether you like them depends to some extent on how you''re built and how you like your seats. I don''t find them as comfortable as those in other pickups, which use firmer, more contoured, more supportive seats. Other pickup owners find the GM seats more to their liking. Also, the interior door handles are ropey and awkward.

The instrument cluster features highly legible gauges with white backlighting and orange pointers. The Denali’s gauges feature blue backlighting and white pointers. A driver information center reports on as many as 27 vehicle functions with an easy-to-read, single-line LCD display. A compass is incorporated into the overhead console, along with three storage areas for sunglasses, garage door opener, and small items.

Audio and climate controls, which were introduced for 2003, are sophisticated, yet easy to operate. XM Satellite Radio is available as an option, great for traveling because the stations don’t change as you drive across the country, allowing you to keep up on news and weather or listen to your favorite types of music. You still get ads, but XM Satellite seems less commercial than FM. The system comes with AM, FM1, FM2, XM1, and XM2 bands. Optional audio controls on the steering wheel make it easy to switch among station presets and modes. Set your stations carefully and you can quickly zip to favorite stations scattered among AM, FM, and XM Satellite without taking your hands off the wheel.

Optional bucket seats come with an extended center console that flows into the instrument panel. It includes a storage compartment and a 12-volt power outlet at the rear. (All Sierras come with three 12-volt power outlets at the bottom center of the dash.) Vents and HVAC controls for rear-seat passengers are mounted on the rear of the center console on Crew Cabs and Extended Cabs.

Extended-cab models offer surprisingly good back seat accommodations. Climb through the reverse-opening rear door and find a seat that’s reasonably comfortable. Rear-seat passengers get their own air-conditioning outlets and a set of drop-down cup holders. When cargo capacity is more important than hauling passengers, the entire rear seat assembly can be loosened from the floor with a wrench and removed through one of the side doors. Not exactly quick release, but a useful feature.

The rear seats in the Crew Cab models are as roomy as the second-row of seats in a Suburban. Sierra Crew Cabs are capable of carrying six passengers and is very roomy with four. With optional leather, a Crew Cab feels truly luxurious. Rear seats are split 60/40 and fold down, providing a large protected cargo area inside the cab.

A Panasonic DVD system ($995) is available for the 1500 Crew Cab, turning it into a real family vehicle. The system comes with a seven-inch flip-down screen for watching DVD movies and cartoons, a CD player, two sets of wireless headphones with independent volume control, a wireless remote control and three sets of auxiliary video and audio inputs.

Safety is enhanced with dual-stage airbags (1500 only), which deploy with less force in less-severe collisions. An automatic passenger-sensing system assesses whether the occupant in the seat is an adult or child, based on weight and seat belt tension, and deactivates the passenger-side air bag accordingly. An indicator light in the rearview mirror lets the driver know when the airbag is deactivated. Three-point seat belts are provided in all first and second-row seat positions.