With the EXT trim level, this 2004 Trailblazer features a 4.2-liter inline 6-cylinder engine with a 4-speed automatic transmission with overdrive. This model comes with dual zone climate control, cruise control, 3rd row seat, dvd player, keyless entry, lumbar seats and a nice list of power controls. EPA estimates for the Trailblazer fall in the 16 City to 21 Highway range. A nationwide unlimited mileage warranty is available for purchase on this car.