General Motors has received notice that five UAW locals in three states could strike this month over local negotiations.

UAW locals representing hourly workers at GM assembly plants in Arlington, Texas; Delta Township, Mich.; and Flint, Mich., filed five-day strike notices today. A stamping plant in Parma, Ohio, and a transmission plant in Warren, Mich., also have delivered a five-day notice that precedes an official strike warning, GM said.

"At the end of that five-day strike notice, (if) there is no agreement, we will strike the plant," Dan Smith, Local 1005 shop chairman, wrote on the local union's Web site today. The local represents workers at GM's Parma stamping plant.

GM spokesman Dan Flores would not comment on the specifics of the notices. But he cautioned that issues negotiated under last year's national agreement could not cause a local strike. Local issues typically address absenteeism and work rules.

The issue of which factory jobs would be considered for lower new-hire wages and benefits, known as noncore jobs, was negotiated nationally last fall.

Only a handful of the more than 75 UAW locals at GM plants have settled their local agreements since a national contract was signed in September.

GM's assembly plant in Arlington builds the Cadillac Escalade, Chevrolet Tahoe and GMC Yukon SUVs. Those sales have been hit hard lately as consumers have moved to smaller, more fuel-efficient cars as gasoline prices have risen.

GM's Delta Township assembly plant, near Lansing, produces the GMC Acadia, Saturn Outlook and Buick Enclave crossovers. Sales of those vehicles continue to thrive, even with a sagging economy.

Acadia sales in March jumped 29.4 percent from the previous year, while sales of the Outlook increased 9.9 percent. The Enclave was not sold in March 2007, but 4,460 were sold last month, more than the Outlook but fewer than the Acadia.

GM already is saddled with a crippling strike by 3,650 UAW workers at American Axle & Manufacturing Holdings Inc.

That 6-week-old strike has shut or hamstrung 30 GM plants. American Axle, which makes axles and parts for all GM light trucks in North America, has shut production of all GM pickups and SUVs in North America outside of Mexico.

Reuters contributed to this report