I change the setting of headlight sensor to low but it doesn't work. it still take quite a bit of time before the headlight turns on when going into a dark spot

 

maybe switch it to "high"?

 

Actually I did. It got worst. Low basically means it only need low dark surrounding to trigger the sensor to turn the headlight on.

 

Some of these sensors (Lexus) use the setting to determine how long the dark or light condition exists before the lights turn on or off, not how bright it is outside. Not sure what Acura does, ours seems to work as expected.