The 2021 Chevrolet TrailBlazer is available as a 4-door, 5-seat sport utility. Starting at $19,000, the 2021 Chevrolet TrailBlazer L FWD is powered by a 1.2LL , 3 -cylinder engine mated to an automatic transmission that returns an EPA estimated 28-mpg in the city and 31-mpg on the highway. The top of the line 2021ChevroletTrailBlazerRS AWD , priced at $ 27,000 , is powered by a 1.3LL , 3 - cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 30-mpg on the highway.