xfgrey

Many thanks for the reply, I'll get the battery tested. It has been suggested elsewhere that the footbrake swich could be causing the issue - it might be worth me getting this replaced.

My 2009 XF 2.7D Luxury has been displaying the following warning messages: - Gearbox Fault -DSC Not Available - Parking BrakeFault The low batterylight has occasionally come on since I've had the car Given that the car drove perfectly with these warning lights on and that the car was on it's original 2008 dated battery, I thought that a new battery would cure the problem. However after fitting a new battery, all the warning lights above came on again AND the Cannot Apply Parking Brake warning message and constant buzzer warning for this comes on when driving. Also, after fitting the new battery the brake lights don't come on! I had a new brake light switch fitted but the brake lights still don't come on! The low battery warning still comes on occasionally too even though the battery is brand new. I've taken the car to an independent and a specialist but neither had the latest Jaguar software so it's booked into the main dealer next week. Greatly appreciate any advice - while the new battery was a waste of time and caused the new problems at least fitting a new battery proved that it wasn't the original battery causing the warning lights. Given that the new battery hasn't cured it, I'm thinking along the lines of maybe a software upgrade (car hasn't been serviced at main dealer for 18mths) or a computer reset with the latest Jaguar software could possibly resolve the issue? Thanks in advance