I am borrowing my father's xc90 ('04) and the hazards started to flash once parked for some time. I searched the issue and checked the alarm function, tried to all ways to disable the hazards, unlock/lock, hazard switch - like many have suggested - and yet I can't get them to turn off. I also noticed, for the first time for me, the EL POWERSYSTEM SERVICE warning and curious if these could be connected. I understand that the service could be alternator or battery related, but could this also be creating a issue with the alarm system where the hazards flash, but the alarm does not trigger. Panic button on fob works for alarm. I just have no history with this car, even though we own several volvos. Any help would be greatly appreciated.