Message after alarm going off

[G Power]

Hi all, I purchased my 1st jag today. A 2016 xf. Whilst I was playing about, I set off the alarm (as you do). When I went to start the car after this I had an “engine Oil critically low” message appear. I subsequently, turned the car off, checked the Oil level which was thankfully ok. I sat in again, started the car and all was ok. I set the alarm off again just to see if the same message appeared which it did but disappeared once I turned the car on and off. Is this just a sensor issue or does anyone have any ideas?

[Chidders]

Low battery on my s type causes similar problem but it’s thetraction control light that comes on and then goes off by its self..Therefore suggest check battery and use a smart charger to ensure better levels are kept up.  Chidders