If you are running on a straight road, when you leave your hands off from the steering wheel. My car cannot keep running straight and will pull to the left side. I checked all tires pressure and all are 32psi and the road is flat.

Anyone has similar situation as I do on the SH-AWD TL???

 

Usually the car floats to the right due to the crown of the road. Have you tried other roads? It's not unheard of that the tracking was not set 100% correct from the factory. If you have very few miles, the dealer may realign but if you have a few thousand miles the dealer may assume you've hit a pot hole and knocked the car out of alignment.
In any case, with the high cost of eventual tire replacment and the possibility of pre-mature suspension wear you may want to have Acura investigate.

 

All things being equal and on a well-made road without crosswind, you should drift to the right because of the crown. The best test is to throw it in neutral and coast. Drift should be minimal that way.

You could also rotate your tires to see if you may be getting a radial pull.