Neither company disclosed the timing or pricing of the sale, which was announced Friday.

Suzuki ended production at the Ingersoll, Ontario, plant last summer amid slumping sales of the XL7 SUV, which was manufactured there. GM announced last month it would invest $85.1 million to retool the plant and raise production by 40,000 vehicles.

CAMI currently makes the Chevrolet Equinox and GMC Terrain.

GM approached Suzuki with the proposal to sell its stake, Suzuki spokesman Hideki Taguchi said. The Japanese company won't be taking a loss on the sale, he added.

“We have no model being produced there and no plans to introduce one,” Taguchi said. “So the position of CAMI has gone down.”

The breakup ends a cooperative effort that began in November 1986, when the biggest U.S. automaker was courting Suzuki to learn more about Japanese production methods. The sale also breaks one of the last ties holding the companies together.

GM purchased an initial 5.3 percent stake in the Japanese automaker in 1981. GM's holding rose to more than 20 percent in 2001 but was later trimmed to 3 percent. Facing bankruptcy late last year, the cash-strapped U.S. automaker dumped the rest of its holdings.

"Bringing CAMI completely into the GM family is a strong vote of confidence in the people there and builds on the recent positive news at the plant since the highly successful launch of the Chevrolet Equinox and GMC Terrain,” GM Canada President Arturo Elias said in a statement.

GM said demand for those vehicles climbed 17 percent in November and that the company has been ramping up output at CAMI through overtime and the addition of a third shift.