General Motors Co. is looking at assembling the Chevrolet Equinox crossover at a second plant.“We are studying how fast we can add another plant for the Equinox,” Bob Lutz, GM’s vice chairman in charge of marketing, said at a media event today. “For the time being, we’re just doing a third shift at the CAMI plant.”

GM assembles the Equinox and the newly launched 2010 GMC Terrain at a plant in Ontario, CAMI Automotive Inc., which GM operates in a joint venture with Suzuki Motor Corp.

The company launched the redesigned Equinox in June.

GM says retail sales of the 2010 Equinox totaled 9,902 through Sept. 15.

The third shift at CAMI starts in mid- to late October. That will boost annual production capacity of the Equinox and Terrain to nearly 200,000 vehicles. GM launched the Terrain in late August.

Lutz expects high-volume sales for both vehicles. He declined to be specific.

GM expects the Equinox’s segment to grow from the current 2 million per year to 2.3 million in the next two to three years, says Hugh Milne, GMC marketing manager.