The 2009 Chevrolet Avalanche is an innovative full-size truck characterized by its unique midgate feature which extends the cargo bed into the cabin. It falls under the second and final generation of Avalanche trucks. The Avalanche comes in three trims: the LS, LT, and LTZ, all available with either rear-wheel drive (RWD) or four-wheel drive (4WD). It has a 5.3-liter V8 Engine that outputs 320 horsepower, mated to a smooth four-speed automatic transmission. The truck's notable features include a heavy-duty locking rear differential, Bluetooth connectivity, a trip computer, and an advanced trailer package. In terms of safety, it is equipped with standard front-seat side airbags, full-length side curtain-type airbags, antilock disc brakes, stability control, and GM's OnStar emergency communications system.