 With no F1 seat for 2015, Chilton returned to Carlin for testing in order to assist them with their Indy Lights efforts, planning to move on to a full IndyCar Series drive in 2016.Chilton's maiden Indy Lights pole position and race win, taking place on the same weekend as Jules Bianchi's death, was dedicated to his former Formula One teammate and karting rival.On 1 February 2016, Chilton joined Chip Ganassi Racing to compete in the IndyCar Series.