Red – rear light when cycling. This will flash red when braking. If you try to rent the bike and the lights go yellow, red and then switch off, it means that the bike is not available to rent or you have insufficient credit.
Purple – System update
Yellow – Bike is connecting to the server
Green – Successful start and end of the hire
Blue – Poor GPS/GSM signal, or while registering card with chip
Rainbow – Nike paused