Chime randomly comes on, no message 2016 s60

[glasst5]

Hi all,
Have a 2016 s60 t5 r design and randomly the “low fuel level chime” will go on a couple times during a trip, but without any messages, no low fuel light, no check engine, nothing, the chime just comes on then I drive for a while then it comes on again. I have half a tank in the car anyways so it wouldn’t be low fuel. Anyone have any ideas as to why this chime comes on without any messages and then doesn’t come back on for a couple weeks, then comes on again? Thanks.