GM's overall crossover sales rose 5 percent, led by the company's smallest entries: The Buick Encore, up 60 percent, to 4,921 sales; and the Chevy Trax, which debuted in December and sold 3,821 units in February.
Truck brand GMC led the way with a 19 percent gain, to 42,433 vehicles, the brand's strongest February sales since 2002.
Slumping car sales hurt GM's other three brands though. Chevy’s 3.8 percent gain sales masked sharp drops for its highest-volume cars -- Chevrolet Cruze down 16 percent, Malibu off 20 percent, Impala down 25 percent and Sonic down 62 percent.
After snapping a seven-month skid of flat or lower sales in January, Cadillac reversed course last month with a 13 percent decline. The Escalade was the lone bright spot, outselling every car in Cadillac's lineup.
Sales of the Cadillac ATS compact, down 16 percent, were hurt by a stop-sale order that that took effect Feb. 12 for an eventual recall to fix a problem with the sunroof.
Buick sales fell 9.2 percent amid weak demand across its car lineup. For the first time since it was added to the lineup in early 2013, the Encore was Buick's highest-volume nameplate for the month.
It was Buick's second straight monthly decline after the brand gained market share last year with an 11 percent sales increase.