US carmaker Chrysler has announced some 469,000 SUVs are to be recalled worldwide to update its software, Reuters has reported. The recall was initiated after some vehicles' circuit boards were found to be transmitting signals that trigger inadvertent gear shifts to neutral, the company said. Included are 2006- to 2010-model-year Jeep Commanders and 2005 to 2010 Jeep Grand Cherokees, of which about 295,000 are in the US, 28,500 are in Canada and 4,200 are in Mexico. The remaining 141,000 are outside of North America. This is Chrysler's largest recall since more than 900,000 Jeep Grand Cherokee and Liberty SUVs were recalled worldwide in November to fix a part that could cause airbags to deploy inadvertently.