Ford, General Motors and Fiat Chrysler posted U.S. sales declines last month while Toyota and Nissan advanced following forecasts that the market would continue to cool in September. Honda Motor Co. volume dipped 0.1%, with record truck sales for the month offset by weaker car demand.

Automotive News reported that Nissan Motor Co. rebounded from an August drop with a 4.9% gain. Ford Motor Co. echoed its August setback with an 8.1% fall. Toyota Motor Corp. ended a four-month skid, while General Motors volume was down for a sixth straight month. Fiat Chrysler’s 1% decrease included a rare skid at Jeep.

After the rest of the industry releases results later today, September U.S. light-vehicle sales are expected to drop slightly from year-earlier levels for the second straight month.

Edmunds, Kelley Blue Book and TrueCar estimate September sales will slip about 2%. LMC Automotive expects a decline of just 0.8%.

J.D. Power and LMC Automotive said volume over the Labor Day weekend — typically one of the best sales periods of the year – fell 1 percent to just under 200,000 despite more-generous deals, casting more doubt on the strength of the retail market.

The strength of September’s retail sales amid higher incentives could signal whether the U.S. auto industry eeks out another annual gain or falls short of 2015’s record of 17.5 million deliveries. Through August, sales were 0.5% ahead, keeping the industry tenuously on track to stretch its winning streak into a seventh year.

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