Jumper Auxiliary Battery Alarm Defect

I had something similar happen in my Jumper. Was the battery signal active? Is it perhaps the auxiliary battery, rather than the main car battery?

Battery signal was active. Auxiliary battery, you think? How did you fix it?

Yes, my problem was also with the auxiliary battery that powers the alarm system. Unfortunately, I couldn't fix it myself and had to go to the workshop. They confirmed the battery was discharged due to ageing. Best to get it checked properly to avoid further issues.

Thanks for the heads up. The workshop confirmed it was the auxiliary battery, just like you said. It cost 330€ to replace. Appreciate the help.