I have a 2012 Cx-5 Maxx Sport Diesel with a wierd issue. When I select a gear and release the handbreak the dash alarm goes off.if I engage the handbrake the alarm stops. I can stop the alarm by turning off the parking sensors (note parking sensors still beep if close to something)I have also cleaned all parking sensors. car has just ticked over 100k KM The alarm will stop if I get above ~10ks but starts again if you slow under that or come to a stop. I have checked break fluid level and it is fine, I have checked battery voltage, it's fine.I have disconnected the battery hoping something would reset.plugged in odb2 reader and no engin codes came up.Checked all break lights are working
clipped in all seat belts
all doors are closed
no warning lights on the dash I have no ideas what it could be, any help or suggestions would be great!!

 

Do you have front parking sensors?

 

Yes I do have front sensors

I have a feeling one may be faulty