Auto dimming Mirrors question

[Jason53177]

I have a 2019 1500 classic bighorn and I notice at night only the drivers side and rear view mirror autodarken Are all 3 suppose to autodarken or just the 2.

 

[stimpy433]

I think on the Bighorn it's just the 2 that auto dim, but on the Limited all 3 mirrors auto dim. I have a Bighorn, but I upgraded my rear view mirror to an auto dim mirror and Limited side mirrors so all mine dim. I'm sure someone that has that factory will chime in if I'm wrong.

 

[wobly]

I have a 2015 Outdoorsman and only the driver side and rear view mirror dim with headlights behind me.

 

[duckman631]

I have a 2019 1500 classic bighorn and I notice at night only the drivers side and rear view mirror autodarken Are all 3 suppose to autodarken or just the 2.

Just the two. The right mirror has a thinner bezel and that’s how you can tell it’s not auto dimming

 

[JPT]

I think on the Bighorn it's just the 2 that auto dim, but on the Limited all 3 mirrors auto dim. I have a Bighorn, but I upgraded my rear view mirror to an auto dim mirror and Limited side mirrors so all mine dim. I'm sure someone that has that factory will chime in if I'm wrong.

What did you have to do to get the passenger side mirror to dim with that upgrade?

Thanks

 

[mjf6175]

What did you have to do to get the passenger side mirror to dim with that upgrade?

Thanks

If you upgrade your passenger side mirror to one that has auto dim, you need to go into the BCM. The Body Control Module. Look for "Electro-chromatic passenger mirror present". Change to "SET". Right above this is ""Electro-chromatic driver mirror present"

 

[JPT]

If you upgrade your passenger side mirror to one that has auto dim, you need to go into the BCM. The Body Control Module. Look for "Electro-chromatic passenger mirror present". Change to "SET". Right above this is ""Electro-chromatic driver mirror present"

Thanks. By "upgrade your passenger side mirror" is it as simple as replacing the glass with an auto dimming/defrost glass, and just plugging it in? Or does it require a different module in the door?

I get that you will have to re-program to get it to work after.

 

[mjf6175]

Thanks. By "upgrade your passenger side mirror" is it as simple as replacing the glass with an auto dimming/defrost glass, and just plugging it in? Or does it require a different module in the door?

I get that you will have to re-program to get it to work after.

I do not know of anyone trying that. Not to mention would you even be able to just get the correct auto dimming glass, the needed wiring for it, and where to pin the connections into the door module. Your door module should be good to go. When I did this I just bought complete mirrors with memory and auto dim for driver and passenger.

 

[condor767]

My 2019 bighorn auto dims all 3. But it’s the new 5th gen style (DT)...not sure if the classic bighorn is still the 4th gen (DS), that may have something to do with it.

 

[avantiguy]

My 2019 bighorn auto dims all 3. But it’s the new 5th gen style (DT)...not sure if the classic bighorn is still the 4th gen (DS), that may have something to do with it.

My 19 Laramie Sport level 2 DT only has auto dim on drivers side and interior mirrors. You will need to check your build sheet to see what you have on a specific truck

 

[Mpgrimm2]

I have a 2019 1500 classic bighorn and I notice at night only the drivers side and rear view mirror autodarken Are all 3 suppose to autodarken or just the 2.

I don't know why FCA does this 1/2 baked Auto Dim setup other than to save money on the 4th gen 19 classics. If you want the other one to work, you will likely need to swap it out. See ...
- DIY: 2013-18 (19 classic) Power Fold Mirror upgrade/Notes.



M² Mods.

 

[condor767]

My 19 Laramie Sport level 2 DT only has auto dim on drivers side and interior mirrors. You will need to check your build sheet to see what you have on a specific truck

I stand corrected. You’re right, mine is also just drivers side and interior mirror auto dim, no passenger side. Thanks.

 

[bdrut57]

I would like to get my auto dim mirrors to work with a topper on a 2017

 

[crash68]

I would like to get my auto dim mirrors to work with a topper on a 2017

Unfortunately the sensor for the Auto-Dimming mirrors is in the rear-view mirror. Having a topper pretty much blocks the light that would make the mirrors dim.

 

[bdrut57]

could a person mount a mirror on the topper back door,and some how wire it up to work

 

[crash68]

could a person mount a mirror on the topper back door,and some how wire it up to work

The sensor most likely communicates over a comm buss back to the BCM. It might be possible but would be a shear waste of money for what it does other than to say it works.
You would be farther ahead to to figure out someway to supply a variable voltage to the mirror(s) to facilitate dimming manually. Even then if your mirrors are adjusted correctly the auto dimming does amount to much.

 

[bdrut57]

The sensor most likely communicates over a comm buss back to the BCM. It might be possible but would be a shear waste of money for what it does other than to say it works.
You would be farther ahead to to figure out someway to supply a variable voltage to the mirror(s) to facilitate dimming manually. Even then if your mirrors are adjusted correctly the auto dimming does amount to much.

thanks u have scared me from it,just a thought