I have a 2012 prius the ready indicator is taking 5 sec to appear in dashboard can u plz help what is that means is any has experienced the same issue
Regardless of the answer to that question, it should be tested.......along with the connections to it. AND.....if it is the original OEM battery from 2012......that makes it about 7 or 8 years old and it should just be replaced. A really OLD 12 V battery can complicate and confuse diagnosing other problems.......if there are any.