3 quick beeps, but nothing shows on dash as being wrong

[ajw1100]

Got in the morning and heard Beep-Beep--Beep warnings then repeated.
No info on dash so took it for a run, all okay but repeated Beeps still Beeping. opened and closed all openings but still beeping.
Any suggestions as to what to check?

 

[ajw1100]

It was the dashcam beeping, no idea why as not had a peep, or beep, out if it for 3 years!!