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2019/2020 Tow Mirror Installation

SamDSJR
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TNT799 Enthusiast

TNT799

Posted
Posted
On 12/31/2019 at 4:04 AM, TNT799 said:

DO they have heat function and did you get the lights to work ?

 

I bought the harness and the dealer is telling me the adjustable glass and heat work but, no lights  or did they not change the harness out ?

my truck came with heat and adjust but, like I said I bought the wiring harnesses ?

 

Thanks

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SamDSJR
SamDSJR

I just received my tow mirrors I bought on the Black Friday sale. I installed them today and thought I would share the install process and how it went.   My truck is a 2019 LT 5.3, CCSB that

SamDSJR
SamDSJR

You're welcome.   So regarding our existing harnesses plugging in, yes they do. Identical plug and play. However the factory harness does not have all the circuits for all the mirror feature

SamDSJR
SamDSJR

Ok, here you go. This is extended.

Posted Images

Fltmech Enthusiast

Fltmech

Posted
Posted
On 12/27/2019 at 9:00 PM, TNAT4 said:

Thought I’d post this here since this thread seems appropriate.  I have a 2020 AT4, fully loaded and it came with the trailering mirrors.  The thing is, I’d rather have the non-trailering mirrors because I don’t do a lot of towing and the blind spot mentioned above is bothersome for me.  I checked with the dealership but there’s no easy way to order the other mirrors because I’d need the standard harness rather than the trailering mirror harness.  So I’m looking to trade with someone.  No extra cost, just even swap.  Mine have the chrome caps, power fold, puddle lights, etc just as described above.  I’d want the “fully loaded” smaller mirrors in return, including the harness to make them work.  Anyone interested?  
BTW thanks for this post, will be very helpful if I’m able to find someone willing to swap.

97930682-1638-4433-8360-43B021AD47DC.jpeg

Do your tow mirrors have the 360 cameras? 

TNT799 Enthusiast

TNT799

Posted
Posted
12 minutes ago, Fltmech said:

Do your tow mirrors have the 360 cameras? 

No

TNAT4 Enthusiast

TNAT4

Posted
Posted
1 hour ago, Fltmech said:

Do your tow mirrors have the 360 cameras? 

Yes, they do.  The cameras are on the base that attached to the truck and my truck has the 360 view.  I've been asking around trying to find out if they're plug n play with the smaller mirrors that have all the same features.  It looks like they are plug n play but might possibly require reprogramming.  I'm getting conflicting info on this, waiting on my dealer to find out from GMC.  

Pdubb Pdubb Enthusiast

Pdubb Pdubb

Posted
Posted (edited)
On 12/27/2019 at 9:00 PM, TNAT4 said:

Thought I’d post this here since this thread seems appropriate.  I have a 2020 AT4, fully loaded and it came with the trailering mirrors.  The thing is, I’d rather have the non-trailering mirrors because I don’t do a lot of towing and the blind spot mentioned above is bothersome for me.  I checked with the dealership but there’s no easy way to order the other mirrors because I’d need the standard harness rather than the trailering mirror harness.  So I’m looking to trade with someone.  No extra cost, just even swap.  Mine have the chrome caps, power fold, puddle lights, etc just as described above.  I’d want the “fully loaded” smaller mirrors in return, including the harness to make them work.  Anyone interested?  
BTW thanks for this post, will be very helpful if I’m able to find someone willing to swap.

97930682-1638-4433-8360-43B021AD47DC.jpeg

Hi ,

I am willing to do an even  swap if you  are still interested.I can be reached at [email protected] or (404) 783-3154. I live in the Atlanta area. Thanks.

IMG_2030.JPG

Edited by Pdubb Pdubb
mis- spelled word
TNT799 Enthusiast

TNT799

Posted
Posted

Received this Email stating Harness in stock.  My truck is currently at the dealer getting Tow Mirrors & wheels installed as part of our deal. The dealer ordered New Harnesses and had them in about a week, I will let everyone know what does and doesn't work. Stock mirrors had Heat and power adjust

 

NEW PRAGUE CHEV
(NEW PRAGUE, MN)
(952) 758-4488

REYNOLDS PONT CAD GMC BUICK
(ORANGE, VA)
(540) 672-3700


These two businesses are showing to have those parts in stock.
 

IMG_0826.jpg

IMG_0827.jpg

453030 Enthusiast

453030

Posted
Posted

My 2020 AT4 came w/ the tow mirrors factory installed, I can't imagine the truck without them.  I do tow, but even if I did not, love the extra glass for visibility.  They are noticeably wider than the tow mirrors on my old 2015 HD 2500.

RyanBrew Enthusiast

RyanBrew

Posted
Posted

My 2020 AT4 has the towing mirrors. I have a love hate relationship with them

Love them for towing. Hate them for everything else

Is there a way to replace the chrome with black?

Tx

TNT799 Enthusiast

TNT799

Posted
Posted
13 hours ago, TNT799 said:

Received this Email stating Harness in stock.  My truck is currently at the dealer getting Tow Mirrors & wheels installed as part of our deal. The dealer ordered New Harnesses and had them in about a week, I will let everyone know what does and doesn't work. Stock mirrors had Heat and power adjust

 

NEW PRAGUE CHEV
(NEW PRAGUE, MN)
(952) 758-4488

REYNOLDS PONT CAD GMC BUICK
(ORANGE, VA)
(540) 672-3700


These two businesses are showing to have those parts in stock.
 

IMG_0826.jpg

IMG_0827.jpg

Dealer just called and said even with the replacement harness the truck itself does not have the pins into the BCM from the truck.

They ordered 

Driver side 84622371

Passenger side 84622372

 

Their HAS to be a way to get directional and markers to work ?

sleder700trp Enthusiast

sleder700trp

Posted
Posted

Looking for some help.

 

TNAT4 and I are trying to figure out of we can do a mirror swap without any modifications. My mirrors are off a late build (07/19)  2019 High Country 1500. They are heated, power adjust, puddle light, power fold, blind spot monitoring, and they have the side cameras. His truck is a 2020 AT4 with all the same features in a tow mirror. He has the heated, power fold, blind spot monitoring, 360 camera, puddle light. Only feature his tow mirrors have in addition is the LED backup light in the mirror

SamDSJR Enthusiast

SamDSJR

Posted
  • Author
Posted
18 minutes ago, sleder700trp said:

Looking for some help.

 

TNAT4 and I are trying to figure out of we can do a mirror swap without any modifications. My mirrors are off a late build (07/19)  2019 High Country 1500. They are heated, power adjust, puddle light, power fold, blind spot monitoring, and they have the side cameras. His truck is a 2020 AT4 with all the same features in a tow mirror. He has the heated, power fold, blind spot monitoring, 360 camera, puddle light. Only feature his tow mirrors have in addition is the LED backup light in the mirror

Yes - your swap situation should work. Both trucks are top-tier trucks with all the features on both mirrors (minus the LED lights which regular mirrors don't have.) So all the circuits are going to be there.

 

I would suggest each of you take pictures of the pins in your mirrors when you remove them, to make sure they match up - minus one for the LED backup circuit.

sleder700trp Enthusiast

sleder700trp

Posted
Posted
7 minutes ago, SamDSJR said:

Yes - your swap situation should work. Both trucks are top-tier trucks with all the features on both mirrors (minus the LED lights which regular mirrors don't have.) So all the circuits are going to be there.

 

I would suggest each of you take pictures of the pins in your mirrors when you remove them, to make sure they match up - minus one for the LED backup circuit.

TNAT4 and i have contacted dealers and they have given us mixed feedback. a few say yes it will work and most say know but my intuition tells me if they have the same features it should be plug and play (minus the fact that I probably wont have the backup LED work on my truck after the swap) also we have a minor concern with the cameras because on the tow mirrors the camera is further out on the mirror than on the set of the high country (couple inches different. we are not sure if this would cause some sort of calibration error with the camera system on the trucks)

SamDSJR Enthusiast

SamDSJR

Posted
  • Author
Posted
1 minute ago, sleder700trp said:

TNAT4 and i have contacted dealers and they have given us mixed feedback. a few say yes it will work and most say know but my intuition tells me if they have the same features it should be plug and play (minus the fact that I probably wont have the backup LED work on my truck after the swap) also we have a minor concern with the cameras because on the tow mirrors the camera is further out on the mirror than on the set of the high country (couple inches different. we are not sure if this would cause some sort of calibration error with the camera system on the trucks)

That's a good point. I didn't think about the camera height. But I actually thought they (the camera lens) are at the same height on both mirrors, mounted on the actual mount of the mirror, and not the arm??

sleder700trp Enthusiast

sleder700trp

Posted
Posted
2 minutes ago, SamDSJR said:

That's a good point. I didn't think about the camera height. But I actually thought they (the camera lens) are at the same height on both mirrors, mounted on the actual mount of the mirror, and not the arm??

On the high country (non tom mirrors) the camera is further out on the mirror on the part that folds. on the tow mirrors the camera is on the fixed portion of the mirror kinda near where it bots to the body

SamDSJR Enthusiast

SamDSJR

Posted
  • Author
Posted
Just now, sleder700trp said:

On the high country (non tom mirrors) the camera is further out on the mirror on the part that folds. on the tow mirrors the camera is on the fixed portion of the mirror kinda near where it bots to the body

Good to know. Well then I would say it might not be a perfect match. I'm betting the best case scenario would be the surround vision "looks different" than it did - and worst case it doesn't work.

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