I found out that I had a bad battery by testing the old one. was showing 6.5 volts. installed a new battery and after installing the car is showing warning lights on dash. parking brake light traction control, abs light. the adaptive cruise does not work as well as some other functions. all was fine before new battery no codes. took to dealer and they hooked up to the car with their reader. said that I should drive the car a few days and it should sort itself out. two days later and still the same issues. just checking to see if anyone else has had this issue and if so what was the fix?