I'm going to bring this one back for an 04 GS 300 that chimes one time each time I accelarate from stop, but no other times. I did not think it prudent to start another thread as the issue might just be a general Lexus/Toyota thing.
I take off and hear "bing" one time. I can drive 5 miles at a steady rate and no chimes. Pull up to a red light, when I take off "bing"……drive 100 yards to another red light and again when I take off "bing" once.
No warning lights. All fluids are fine. Could my car be thinking a door is ajar?