Vettel started the season with wins in Australia and Malaysia, before a second-place finish at the due to poor tyre management, possibly related to his inability to properly communicate with his team, as his radio was broken. In Monaco, Vettel led the race but due to another radio malfunction, the Red Bull pit crew was not prepared when he came in. The pit stop was slow and he was sent out on the wrong tyres, handing the lead to Button. Vettel switched to a one-stop strategy and stuck with one set of soft tyres for 56 laps. He was caught by Alonso and Button as his tyres deteriorated, but neither were able to pass him. The race was red-flagged with few laps remaining, which allowed teams to change their tyres; when the race was restarted under the safety car, Vettel was able to retain the lead and win.