04 ZX3-Comfort, 5-speed, 2.3, ABS & Side Air Bags. USA.

After 1400 miles, runs and rides great. Noticed yesterday after a 100 mile
trip and again today after a 25 mile trip that every so often I hear a very
low level, quiet 3 chime sound like the sound an old Macintosh Computer
would make if you hit the wrong key several times. Did it with the car in
motion, stopped, radio on or off, AC off and no other motors running except
the engine.

There are no warning lights lit, no doors open or headlights on with the
keys not in the ignition. Read through the owners guide with no answer.

Anybody???

Rich