The probe covers 938,000 Ford Fusion and Lincoln MKZ cars from the 2010 through 2012 model years, as well as the 2011 Mercury Milan.
The recalls involve the Cadillac SRX and Saab 9-4X, as well as the Chevrolet Spark.
GM and Chrysler sales increase 19 percent. Ford sales drop 3 percent.
General Motors is recalling more than 117,000 vehicles from the 2013 and 2014 model years for a defect that could cause them to stall.
If the short circuit occurs, restraint devices including the air bags, pretensioners, and side curtains might not work in a crash.
September sales won’t be as hot as August, the best month in eight years, but industry analysts still expect them to be strong.
One of the world’s biggest tire manufacturers is taking another step toward more environmentally friendly production by incorporating rice husks into high-end tires.
Ignition switches can move out of position and potentially lead to the engine shutting off while driving and air bags not functioning.
The death toll from crashes involving GM small cars with faulty ignition switches is at least 21.
GM says the electronic parking brake arm that applies pressure to the back of the brake pads may not fully retract after use.
Vehicles could leak, posing a fire risk. No fires or injuries have been reported.
General Motors will begin building a new, top-end Cadillac sedan late next year at its Detroit-Hamtramck assembly plant.