General Motors' US sales up 19 percent in September on strong truck demand

General Motors' U.S. sales jumped 19 percent in September on big demand for its pickup trucks.

GM's sales totaled 223,437 cars and trucks. Three of its four brands saw double-digit gains; Cadillac sales were flat compared with last September.

Sales of the Chevrolet Silverado pickup rose 54 percent to 50,176, while the GMC Sierra pickup was up 25 percent to 16,763.

General Motors Co. fueled the sales with good deals. J.D. Power and Associates estimates GM spent just under $5,000 in incentives per pickup, which was 30 percent, or $1,140, higher than a year ago.

GM's SUV sales were also strong. Cadillac Escalade sales more than doubled, while Chevrolet Traverse sales rose 45 percent.