"When driving after dark, the automatic dimming rearview mirror reduces the glare from headlights behind you. Press the AUTO button to turn this function on and off. When activated, the AUTO indicator comes on."


As I read the above statement from the Owner's Manual, the auto-dim feature can be turned off. Is yours turned off by chance?

 

No, because it does work once it gets dark outside. It seems to have a problem at dusk before it really gets dark, but people are already using their headlights.

 

I don't think there is any way to adjust it, it is either ON or OFF. Mine works very well it dims to just the right levels to block out glare but you can still see the outline of the car very well. Does yours work at all? So if yours does not work well to block glare, may be you just need to get the dealer to check it out.

 

It works pretty well when it is dark outside, but at dusk, it hardly works at all. I know that is only about an hour or so of driving time, but for that hour it is very hard to drive.

 

I don't have the van with me currently to check, but there should be a light sensor on the back of the mirror. This may not be the cleanest of solutions, but you can try putting a small piece of translucent scotch tape over the sensor to reduce the amount of light hitting it. It might fool it into thinking the environment is darker than it actually is. If you block all the light, it will probably dim during the day for normal sunlight.

 

I thought the sensor was on front and was to detect relatively bright lights coming at the mirror, perhaps there are both. There have been a few instances where I would be say driving east in the afternoon during sunset where the sun was right in the rearview mirror, and the mirror actually dimmed the sun. The mirror dimming also seems vary depending on conditions as opposed to the night mirror either being on or off.

 

I have this same issue. I don't recall if it happens mostly around dusk or not. But sometimes it seems like the autodim function does not work very well.

 

I am guessing not, but has anyone found a sensitivity adjustment for the auto-dimming rear view mirror? I would like mine to be more sensitive to headlights behind me and dim darker. Model year 2015.

 

Self-dimming mirror owners have been discussing this issue for years but no adjustment feature has ever been introduced. some work-arounds:

cover ambient sensor to make the mirror behave as if ambient light is darker.
turn mirror upside down so headlight sensors get a clearer view of headlights over the trunk lid.
replace with a non-self-dimming mirror.
write Honda and hope next year's model is improved, finally.

 

The Honda one sucks @$$, really takes too long to dim. On my 2014 Camry, even with a tinted rear window, it almost dims immediately at night.

 

Not really helpful or even on topic.

 

I put on a new mirror, it doesn't seem to dim. I'm pretty sure it's faulty. It looks like the glass just has a light brown tint.