Tesla issues recall for most of its cars in the US over warning light issue

• Tesla is recalling 2.2. million vehicles due to an issue with their warning lights. 
• The carmaker has started releasing a software update to resolve the problem. 
• It's Tesla's second big recall in months after it updated 2 million vehicles over Autopilot fears. 

Tesla is recalling two million vehicles in yet another safety headache for Elon Musk.