I searched this forum for a thread about this sensor and found nothing. It's a square module about 1"x1" in size and is raised on top of the dash exactly in front of the driver's side near the windshield glass. My only clue is a light sensor since it looks like it has a lens.

What is it?

 

look in the manual that came with the car, it's in there

 

Dude, you are a freaking genius. Thanks for all of your help.

Anyone else care to answer...it's on the driver side and not the passenger as in the title.

 

auto headlights

 

yah its a light sensor. it becomes functional once you put the headlights in auto mode.

 

Thanks for the info. Since I don't like the auto headlight feature, I don't have to worry about it. With auto on, lights turn on/off too many times when leaving or entering into a carport/garage/etc. several times a day.

 

I checked my manual and the auto light auto sensor is the round module on the passenger side.

Does anyone on here know what the square raised sensor with a flat lens is located directly in front of the driver on an 07? Somebody has to know and there's nothing listed in the manual that I have found.

 

The round ones are supposedly light sensors that figure out which direction the sun is in to make the air cooler on that side. the one in the center is for your headlights.

 

Thank you csmeance.......my curiosity has now been satisfied.

 

You are right. The round sensor is for the auto lighting system. On the '07+ the square sensor is the sun directional sensor. If you look closely at the sensor from outside the windshield you will see that there are multiple segments that the system uses to figures out where the sun is.

 

Ah-ha! So the square module with the segmented lens is the sun directional sensor. That sounds more like it to me. To be honest, I didn't know my 07 had that feature of cooling different zones according to the direction of the sun. Preesh!

 

hit and a miss. Other way around. The 04-06 had the solar sensing feature in it and that was done by those round knobs. Those compare the temps between each other, the side its warmer on, then the a/c compensates. The square sensor is the light sensor for the headlights, put your finger over it on a bright day with your headlights in auto and you will see them turn on.

 

Well I hate to admit I'm wrong but I was.

I asked the question of the dealership and they told me that the square sensor was the sunlight sensor but after the distinguished CSMEANCE pointed out my error I went to the parts list:

http://www.acuraautomotiveparts.org/...s=&view=normal

and found that part number 1 is the sun beam sensor.

http://www.acuraautomotiveparts.org/...s=&view=normal

part 22 is the auto light sensor.

This puts the issue to bed for me.