Most modern cars have a range of similar-sounding audible warnings (although most people would describe a beep or gong rather than a ringing sound) which are almost impossible to trace. On the Jazz, the noise is usually accompanied by an indication on the right-hand display but this will disappear after a few seconds. Difficult to say what yours might be, but some suggestions to check out:
- the lane departure warning will beep if you change lanes without indicating (sometimes activated by tarmac seams)
- the Jazz has two user-configurable speed warnings which will beep briefly if you exceed the pre-set speeds (you can change or deactivate these)
- there is an ice warning if the ambient air temperature goes below 2-3 deg C
- the collision warning system can false-alarm in certain situations
- if you use the speed limiter and exceed the set speed (eg when going downhill) the car starts beeping until you brake below the set speed