“The number of software-related issues, according to several sources tracking vehicle recalls, has been on the rise. According to financial advisors Stout Risius Ross (SSR), in their Automotive Warranty & Recall Report 2016, software-related recalls have gone from less than 5 percent of recalls in 2011 to 15 percent by the end of 2015.”
Source: Software Now To Blame For 15 Percent Of Car Recalls | Popular Science