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It is showing you the batteries need attention. Ether they are low on charge or may be failing. That should stop once they are charged up. IF they are over 3 years old you need to have them checked and load tested. Be sure you are cheking the water levels on a regular basis. Hope that proved helpful. Please get back to me if you need more as all follow ups are included in our fee.
Plug your coach in or run the genset for an hour or so and the batteries should charge up. Most places that sell batteries can load test them for you. IF this has been sitting for some time, they may be just low and will charge up quickly and that will stop.