Locked out of the Monaro

[vxr2010]

on vxr8 and i expect the monaro’s the same , if the battery is knackered it has a knock on on the others cars systems , if it’s me i would change the battery for a new one as it’s the cheapest route to probably solving the issue then see how you go , lock wise use some wd40 , my drivers lock is used a lot so it works no issues