research has uncovered a major battery flaw in some Toyota and Lexus cars that can cause people to become trapped in their vehicles. While the C-HR, Corolla, Yaris and Yaris Cross models were among the Toyota cars we heard most about. The Lexus RX has electrically operated door handles, which stop functioning when the 12V battery is flat. Donald said: ’Having lost confidence, I insisted on a new Toyota battery (for £190) to avoid further stress and anxiety. SimonSome owners felt obliged to buy a ‘trickle charger’, which is either a battery or solar panel to keep the 12V battery topped up.