When driving on auto-gear, the D3 light come out randomly. Why and how do I fix it?

I have a problem with my Honda Stream car. When driving on auto-gear, the D3 light come out randomly. Only when I push the button on the gear stick that the D3 light goes off. This is very frequent and became dangerous to drive. I can't find the reason. I went to the Honda service centre and few other car repair shops but they could not find the fault either. I'm stuck with this situation.

HI, maybe when driving in auto-gear its like overdrive and your are not going fast enough for overdrive so it wants you to select a different gear?

What makes you think this is a problem? You have not explained nor apparently read the car manual as to the meaning of this light you called a "D3" light. Why is it "dangerous" to drive? If more than one Honda qualified technician can't find any issues, why do you insist on this matter? Do you need to go to a therapist or to simply read the car manual? Here are clues. There's not year of manufacture, no miles on the car. No reference to the car manual or as to what is the meaning of this light as per Honda. Not much evidence.

The maximum Auto repair shop can't recognize the problem of because, they have high class & auto mechanics.A high class auto repair shop depends upon high mechanics.