Hi there I am new here myself, and new to Jaguar autos, these folks on here are great, all ready saved me a dealer visit. Car started throwing some codes and the transmission was acting up a little. Found out that if the battery was not fully up to snuff the computers can affect everything even shift points. Enjoy the site and happy motoring.

 

Welcome, weak batteries can cause many funky weirdness as you stated
Enjoy your stay

 

Yes, great work - I'm thinking that anyone here at the forums should be able to avoid the dealer most of the time.