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Possible to add auto dimming mirror?

NCTrailBoss93

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I have a ‘23 lt TrailBoss and have been looking to see if it’s possible to add an auto dimming mirror. Most of the posts I’ve found have been on pre-refreshed models. Has anybody done this on the newer models? Part number and wiring? Thanks!
 
From what I've read, there isn't wiring in the headliner like the pre refresh trucks to just plug it in. You can buy an auto dim mirror and it only requires switched power and ground. There's a third wire to hook to the reverse light circuit that turns the dimming off when in reverse. I've run them in other vehicles without the reverse wire with no issues.
 
From what I've read, there isn't wiring in the headliner like the pre refresh trucks to just plug it in. You can buy an auto dim mirror and it only requires switched power and ground. There's a third wire to hook to the reverse light circuit that turns the dimming off when in reverse. I've run them in other vehicles without the reverse wire with no issues.
I wonder if the wiring is there for those of us with the sunroof.
 
All you need is switched power and ground so you can tap into whatever is there if it exists with the sunroof. The mirror is a low draw item.
 
I have a ‘23 lt TrailBoss and have been looking to see if it’s possible to add an auto dimming mirror. Most of the posts I’ve found have been on pre-refreshed models. Has anybody done this on the newer models? Part number and wiring? Thanks!
I've been wondering the same thing about my 2019. Kind of odd that my 2003 has one but 16 years later it's not standard??
 
I've been wondering the same thing about my 2019. Kind of odd that my 2003 has one but 16 years later it's not standard??
I found one on ebay for $40 when I bought my truck. On the pre-refresh trucks the plug is glued to the roof behind the roof console. If you pull the 4 screws out you can find it there. Pull it down and it plugs right in.
 
I found one on ebay for $40 when I bought my truck. On the pre-refresh trucks the plug is glued to the roof behind the roof console. If you pull the 4 screws out you can find it there. Pull it down and it plugs right in.
Well I'll definitely try that, thanks for the tip. Were you able to find a mirror without the Onstar buttons? Mine in the 2003 Envoy had Onstar plus buttons where you can make a recording (for whatever reason)
 
This was from a new Silverado with the higher trim package that had the auto dim as standard. If you only want auto dim, go to a local junk yard and look for late 90's and early 2000's GM vehicles. Lots of them had just an auto dim mirror. Make sure to chop off a few inches of wiring behind the plug so you can splice in power and ground. You can probably get them for under $10.
 
Do you have any idea if the mirrors with the rear video display will work, the ones I've seen on ebay look like they have the same plug. And I assume that they work off the same camera as the back up camera??
 
The mirror might plug in but you won't magically get rear video there unless you change some wiring. You'd have to look into gen5diy.com to see if they have anything that would change the mirror to work for video.
 
The mirror might plug in but you won't magically get rear video there unless you change some wiring. You'd have to look into gen5diy.com to see if they have anything that would change the mirror to work for video.
I see on Gen5 it's a separate camera that mounts in the 3rd brake light, so I'm sure that's where the factory one's are located too. Plus I think it's a higher resolution as well. on Gen5 the kit is almost $1700 which is ridiculous.
 
This was from a new Silverado with the higher trim package that had the auto dim as standard. If you only want auto dim, go to a local junk yard and look for late 90's and early 2000's GM vehicles. Lots of them had just an auto dim mirror. Make sure to chop off a few inches of wiring behind the plug so you can splice in power and ground. You can probably get them for under $10.
Auto dimming mirror is installed Getgone, found one on ebay for $59.24. It was difficult getting the plug off of the roof, they must have used some extremely strong glue which makes no sense. I used a combination of pocket knives and picks and it still took about 20 minutes. Had to be careful so I wouldn't break the plug or cut any wires which would not be good. The plug wouldn't reach to where the plug was mounted on the mirror, so I pushed the tab and removed it and then had plenty of room to meet the other connector from the ceiling. Got to test it this morning as I left for work at 5:30am and it works great, a good investment. Makes no sense as to why it's not standard equipment, must be for the $$$ I suppose. Thanks for your assistance!
 
Do you know what the part number was on the mirror you got?
part# was 13540313, but in searching for one I found several others at the time that also said they would fit. This was 3-4 months ago and it seems as if the mounting pad was slightly different but it still fit with no problems. Wish I would have done it sooner, not sure why Chevy didn't put it on there to begin with. Just be careful when prying the connector off of the roof, I guess they used some kind of hot glue and you have to be careful not to break it. If you do you probably would have a hard time finding another one and then have to go to the trouble of working in a very small space splicing wires. I used a pocket knife and several different picks and just kept working around it until it finally popped loose.
 
part# was 13540313, but in searching for one I found several others at the time that also said they would fit. This was 3-4 months ago and it seems as if the mounting pad was slightly different but it still fit with no problems. Wish I would have done it sooner, not sure why Chevy didn't put it on there to begin with. Just be careful when prying the connector off of the roof, I guess they used some kind of hot glue and you have to be careful not to break it. If you do you probably would have a hard time finding another one and then have to go to the trouble of working in a very small space splicing wires. I used a pocket knife and several different picks and just kept working around it until it finally popped loose.
Thank you so much! I’m going from a 2015 Denali and wondering why a lot of things I thought were no brainers are missing. 🤣🤣
 

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