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GM recalling 8.4M cars, 8.2M related to ignition problems

General Motors today announced a truly massive recall covering some 8.4 million vehicles in North America. Most significantly, 8.2 million examples of the affected vehicles are being called back due to "unintended ignition key rotation," though GM spokesperson Alan Adler tells Autoblog that this issue is not like the infamous Chevy Cobalt ignition switch fiasco.
For the sake of perspective, translated to US population, this total recall figure would equal a car for each resident of New Hampshire, Rhode Island, Montana, Delaware, South Dakota, Alaska, North Dakota, the District of Columbia, Vermont and Wyoming. Combined. Here's how it all breaks down:
7,610,862 vehicles in North America being recalled for unintended ignition key rotation. 6,805,679 are in the United States.

GM recalls 61k more vehicles in three campaigns

Following a stop-delivery order for its new midsize trucks and a rash of recent recalls, General Motors is issuing three more campaigns covering 60,575 vehicles in North America with 57,182 of them in the US. As of October 1, the automaker has issued a total of 74 recalls (see the ridiculously long chart to the right) this year covering 26,495,070 units in the US.
The largest campaign covers 46,873 examples in the US of the 2008-2009 Pontiac G8 and 2011-2013 Chevrolet Caprice Police Patrol Vehicle imported from Australia. It's possible for the driver's knee to hit the key and make it move from the "Run" to "ACC" position while driving. GM says its Holden division is developing a fixed-blade key that's supposed to fix the problem by only allowing it to rotate toward the "On" position. There has been one crash caused by this fault but no injuries or fatalities.
The second recall is for 10,005 units of the 2004-2007 Cadillac CTS-V and 2006-2007 Cadillac STS-V because "the fuel pump module electrical terminal may overheat." This can cause a flange to melt and allow the pump to leak fuel. GM specifies that the remedy for the CTS-V is replacing the fuel module and fuel tank jumper harness, but it doesn't specify how the STS-V is being repaired.

GM recalling 778,000 Cobalts and G5s, six deaths reported

General Motors has announced that it will be recalling 778,562 compact cars after six people were killed in accidents, partially due to the airbags' failure to deploy. An issue with the ignition switch is causing the airbag issues, as well as causing the engine and other components to shut off without warning. The recall covers the 2005 to 2007 model year Chevrolet Cobalt and 2007 Pontiac G5. (Note that the Cobalt pictured above is a 2009 model.)
According to a report from Automotive News, a number of factors can cause the ignition to switch out of the run position, including weights on the key ring, rough or bumpy roads or other "jarring" events. Any of these situations could lead to some vehicle components not functioning properly.
There have been five fatal front-impact crashes that took the lives of six people, although as a GM spokesman noted, all five of the crashes happened off road and at high speed. In each of these cases, though, the lack of airbags wasn't the only lethal factor - alcohol and failure to wear a seat belt also played a role. Outside of the fatal accidents, there have been 17 other crashes where airbags didn't deploy. It's unclear if any of these crashes were caused by the engine shutting off.