The reason: the ignition switch. You can't make this stuff up.
Apparently ignition switches are something a couple of major US automakers are having trouble with these days. We all know about GM's ongoing ignition switch recall fiasco, but now Chrysler is joining in on the fun. It has just announced that it will recall as many as 792,300 2006-07 Jeep Commanders and 2005-06 Jeep Grand Cherokees globally in order to fix faulty ignition switches that could potentially be knocked out of the "on" position while driving.
As a result, safety features such as the airbags could become disabled. Sadly, we're only too familiar now with the dangers this issues poses. At the moment, Chrysler's engineers are still working on a mechanical fix, but it's issued the recall regardless as a precautionary measure. Perhaps that's the best, most effective way to avoid a massive lawsuit(s) and government investigations, not to mention all the bad press. In the US alone, 650,000 Commanders and Grand Cherokees have been recalled, with another 41,600 in Canada and Mexico. The rest are overseas. On the bright side, Chrysler knows of no injuries or deaths related to this issue. There's been just one related accident so far.