My daughters car a ford fiesta 2019 and has been having issues with her key saying the battery is low when she replaces her battery it still says battery is low and quite often it wont let her into the car and sometimes it wont start the car the batteries only about a week anyone know what could be wrong ?

 

Some focus RS owners have a similar problem with their key fobs even after replacing the batteries in the key fobs. As with the focus RS it could be the car’s battery that is faulty and causing these issues. So have the car’s battery checked to make sure it has the correct voltage, is charging and basically working as it should.

 

Can also be caused by using rubbish cheap fob batteries too