High-Horsepower Porsche 911s Recalled for Premature Wear of Wheel Hubs

Porsche is recalling about 1,700 of its most powerful 911s from 2010-11 because wheel hubs may wear prematurely, resulting in a compromised wheel-retention system that could lead to a crash, the automaker told the National Highway Traffic Safety Administration.

In a filing posted on the agency’s Web site Thursday, Porsche said the 911 Turbo and Turbo S, the 911 GT3 and GT3 RS, and the GT2 RS equipped with the center locking wheel and hub assembly were affected.

Though it did not identify a clear cause of the problem, Porsche’s statement suggested that wheel hubs might wear prematurely if the affected models are driven on racetracks.

“Porsche is aware that some customers of the affected vehicles occasionally operate them on a racetrack or under similar conditions,” the statement said. “From Porsche’s own racing experience with vehicles using the same central wheel lock components, Porsche has developed new components as well as additional instructions for the use of such components when the affected vehicles are operated under racing conditions.”

Dan Engelman, a spokesman for Porsche Cars North America, said he was unaware of any accidents relating to the condition. “No wheels came off at the track or otherwise,” he wrote by e-mail. “Wear was found at the mounting hub when changing the wheels/tires from track to street.”

Porsche said dealers would replace the central locking hubs and wheels on the affected 911s.

In other actions this week:

• Chrysler is recalling about 11,350 of its 2011 models because of a missing or incorrectly installed steering column pivot rivet.

In a filing posted on the agency’s Web site Thursday, the automaker told the agency that the problem could “compromise the ability of the steering column to support the occupant loads in the event of a frontal crash decreasing the effectiveness of the frontal impact safety system.”

The automaker told the safety agency it was not aware of any accidents or injuries.

The affected vehicles are the 2011 Dodge Avenger, Journey, Caliber, Grand Caravan and Nitro; Jeep Wrangler, Liberty, Compass and Patriot; and the Chrysler 200, 200 convertible and Town & Country.

Volvo is recalling almost 350 of its 2012 S60 sedans equipped with the 5-cylinder engine because of a possible stalling or a fire condition that the automaker attributed to a loose fuel line. The automaker said it was unaware of any accidents or injuries.

Earlier this month, Volvo recalled about 7,600 of the 2012 S60s, saying that a software problem could cause engine stalling.

Honda is recalling about 3,000 of its 2010–11 VT750 cruiser motorcycles because the engine may “stop unexpectedly” during the first 500 miles of riding. In a filing earlier this week, Honda told the safety agency that a bank-angle sensor was at fault for the condition.

Honda received its first complaints more than a year ago, the company said, but could not duplicate the stalling or find anything wrong until it tried a computer simulation earlier this year.

Honda said it had 12 complaints from owners saying the engine shut off. There have been no injuries relating to the condition, Honda said.

Chrysler and Volvo described their recalls as voluntary, but once a manufacturer was aware of a safety problem, it would have five working days to inform N.H.T.S.A. of its plan for a recall or face civil penalties.