I could indicate that component such as a sensor has failed. A plug in diagnostic code reader needs to be used to tell you what's failed and needs attention.
It needs a service,you can check how many miles are left before it shouts at you by looking in the car book you got with the car,if you do not have it put it into the web ,it will come up near to the speedo the spanner comes up when you are near the service to remind you,it can be reset without a service but best get it serviced.