DETROIT — General Motors is recalling almost 780,000 older-model compact cars in North America because a faulty ignition switch can shut off the engines without warning and cause crashes.
The company says six people have died in 22 crashes linked to the problem in Chevrolet Cobalts from the 2005 through 2007 model years, and Pontiac G5s from 2007.
A heavy key ring or jarring from rough roads can move the ignition switch out of the run position, cutting off the engine and electrical power, GM said in statements and documents released Thursday by the U.S. National Highway Traffic Safety Administration. If that happens, the front air bags may not work if there's a crash.
GM says the six fatalities occurred in five front-end crashes, all of which happened off-road and at high speeds. In each case, the ignition switch moved out of the run position, shutting off the engine and electrical power, spokesman Alan Adler said. That condition would cause the loss of power steering assist and power-assisted brakes, he said.
Alcohol was involved in three of the fatalities, and in some cases the occupants weren't wearing seat belts, Adler said.
Dealers will replace the ignition switch for free, but the timing of the recall hasn't been finalized. Until the problem is fixed, GM is urging owners to remove nonessential items from key rings.
Karl Brauer, senior analyst at Kelley Blue Book, said GM has improved quality in the years since the recalled cars were made. But, "this is another example of how potential engineering flaws from the past can come back to bite an automaker," he said.
GM's Adler said the problem was discovered when the company got reports of crashes in which the air bags did not inflate. According to GM documents filed with NHTSA, the company knew of the problem as early as May of last year. But Adler said the recall didn't take place until now because GM wasn't able to pinpoint the cause until recently.