Similar to a crew cab in design, the Avalanche featured a series of unique styling details. Introduced for the 2002 model year, the biggest selling point of the truck was innovative storage features. The Avalanche allowed longer cargo loads to fit by opening the vehicle's Midgate and folding down the rear seating. A pair of Top-Box Storage compartments was also part of the cargo options presented to Chevrolet Avalanche owners. When the Midgate was not opened, up to six passengers fit inside the four-door truck's cabin.
The 2002 Chevrolet Avalanche was presented with two Vortex V-8 powerplant options. A 1500 level variant featured a 285-horsepower 5.3-liter V-8 while an Avalanche 2500 model came with a 340-horsepower 8.1-liter engine was available. Both engines were mated to a four-speed automatic transmission and could be equipped with rear-wheel or four-wheel drivetrains (the Avalanche 2500 would be offered only in four-wheel drive in 2004). A massive refresh was contacted on the Chevrolet Avalanche for the 2007 model year.
Phasing out the contrast colored body cladding, the 2007 Chevrolet Avalanche received a more mature, sophisticated exterior look. The interior also received some stylistic improvements such as more room and better designed controls. A new 366-horsepower 6.0-liter V-8 became the top performance powerplant for the Avalanche. This larger powerplant was discontinued following the 2009 model year. In 2007, the Chevrolet truck's 5.3-liter engine was also introduced with an E85 compatible version. For 2009, a smoother six-speed automatic gearbox replaced the four-speed transmission. Production of the Chevrolet Avalanche concluded during the 2013 model year with a commemorative Black Diamond badged model.
Now standard with power adjustable pedals, rear vision camera, and remote engine start, the 2013 Chevrolet Avalanche is a sport utility truck with 45.5 cubic feet of cargo volume and a towing capacity of 8,100 lbs.