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2014-2017: DL8, DL3, Towing Mirror Upgrade – Mirrors Explained

pgamboa

By pgamboa
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Pdub New Member

Pdub

Posted
Posted (edited)

There is a lot of information in this post that has helped me understand many of the complexities of upgrading mirrors. I have an early 2015 2500HD Diesel that has tow mirrors with heat, power, and signal in the glass. I bought New style aftermarket Mirrors with the same features plus clearance lights and backup/courtesy light. No power fold or extend. Since the temp sensor is still behind the grille, I don’t have to worry about the the K40 sensor but I would like the marker lights and courtesy lights to work. Can this be done without any major complications or modifications? I should mention the truck also has seat memory option as this seems to cause issues. Any help would be greatly appreciated.

Edited by Pdub
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pgamboa
pgamboa

All,   Due to the overwhelming interest in folks wanting to upgrade their mirrors, I wanted to start this thread, hopefully, with all the information pertaining to the process of upgrading y

pgamboa
pgamboa

For those that are curious on the work involved with the harness modification, I've created and uploaded a Time Lapse Video of the process. The original post has been updated and the video link is at

Black Denali Canada
Black Denali Canada

Here are mine       Sent from my iPhone using Tapatalk

Posted Images

Clay-Sierra New Member

Clay-Sierra

Posted
Posted
On 1/3/2020 at 7:47 AM, pgamboa said:


Ah. If it’s a gas truck, it won’t have one. It is usually visible on the lower cap.





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Ok.  If it doesn't have one is there any reason it shouldn't work?  I stopped by a GMC service dealer to ask and they said they weren't sure, but newer model 2500s didn't come with non-towing mirrors anymore.  Wondering if there are any potential complications with that...?

johngf New Member

johngf

Posted
Posted

i change out my mirrors on my 2012 Tahoe to power mirrors, i took both door switches from my old 2007 GMC Denali, everything works, but when i turn off the car and open the door the radio stay on and all the switches still works.  this stays on for about ten minutes.  i put the old switches and everything works but the mirror???  What can i do to make the radio turn off when i open the car door after i turn the car off..'

'Thanks

Capt. Morgan New Member

Capt. Morgan

Posted
Posted

Hi

I have a 2017 SLT Serria

I have power

Fold

Heated

Turn signals

Glass adjust

Puddle light

 

I am not sure which tow mirror i should be buying. Is there any possibility to have the mirrors shipped to you and than you could ship them to me with plug and play ready to go?

Canada 

CM

BillsMafia814 New Member

BillsMafia814

Posted
Posted

Hello,

 

Long time lurker of the message boards, but first time poster.  Really appreciate the information that you provide on this message board as I think it has convinced me that this mod is attainable at my skill set.  Seems greedy to ask any further questions, but would you be able to look at my specific situation and provide feedback?

 

Just upgraded from an '03 1500 Silverado LS that I have had for 10 years to a 2015 Silverado LT with the DL8 power heated mirrors. Looking to upgrade to tow mirrors (aftermarket likely, but could be up-sold to GM product for a good reason or two).  Current mirror features include power adjust, manual fold, and heated. The only features I would like to move forward with on the tow mirrors would be the Amber running lights, turn signals, power adjustment, and heated. I am not looking to get into the power fold, or power extend versions.

 

Would my situation require any additional harnesses or adapters for use with these features, in you opinion? If so could you provide part numbers so I would know what I need to procure before opening the door up?  I can provide my VIN if needed, but my truck was built in October of 2015 in TX if that helps.

 

Thanks in advance for any help that you can provide!

pgamboa Senior Enthusiast

pgamboa

Posted
  • Author
Posted
On 1/3/2020 at 5:38 PM, Pdub said:

There is a lot of information in this post that has helped me understand many of the complexities of upgrading mirrors. I have an early 2015 2500HD Diesel that has tow mirrors with heat, power, and signal in the glass. I bought New style aftermarket Mirrors with the same features plus clearance lights and backup/courtesy light. No power fold or extend. Since the temp sensor is still behind the grille, I don’t have to worry about the the K40 sensor but I would like the marker lights and courtesy lights to work. Can this be done without any major complications or modifications? I should mention the truck also has seat memory option as this seems to cause issues. Any help would be greatly appreciated.

So you currently have the 1st gen tow mirror now?  DPN?  Check you glove box for DPN.  If you can also send a pic, that would be helpful.  If your passenger mirror doesn't have a physical temp sensor probe on the bottom, don't need to worry about that.  Since your truck is an early 2015 truck, there will likely be the need to run wiring inside the cabin/under hood.  This is a separate GM Harness.  Also, if you do have the 1st Gen DPN tow mirror and have seat memory, there is workaround harness you'll need (from me) to get the passenger side mirror to fold (IF you go with power fold mirrors).  

On 1/6/2020 at 10:22 AM, Clay-Sierra said:

Ok.  If it doesn't have one is there any reason it shouldn't work?  I stopped by a GMC service dealer to ask and they said they weren't sure, but newer model 2500s didn't come with non-towing mirrors anymore.  Wondering if there are any potential complications with that...?

If the current passenger mirror doesn't have a physical temp sensor on the bottom, you don't need to worry about it.

On 1/8/2020 at 9:10 PM, johngf said:

i change out my mirrors on my 2012 Tahoe to power mirrors, i took both door switches from my old 2007 GMC Denali, everything works, but when i turn off the car and open the door the radio stay on and all the switches still works.  this stays on for about ten minutes.  i put the old switches and everything works but the mirror???  What can i do to make the radio turn off when i open the car door after i turn the car off..'

'Thanks

I don't have knowledge for trucks older than 2014.  My apologies. 

On 1/9/2020 at 10:33 AM, Capt. Morgan said:

Hi

I have a 2017 SLT Serria

I have power

Fold

Heated

Turn signals

Glass adjust

Puddle light

 

I am not sure which tow mirror i should be buying. Is there any possibility to have the mirrors shipped to you and than you could ship them to me with plug and play ready to go?

Canada 

CM

You want GM DQS Mirrors if you want to retain the memory features and power fold.  I can source GM DQS Mirrors but my supplier doesn't ship outside the US.  I can ship harnesses to Canada.  If you want to move forward, please email me with a  copy of this message so we can move forward with invoicing.

1 hour ago, BillsMafia814 said:

Hello,

 

Long time lurker of the message boards, but first time poster.  Really appreciate the information that you provide on this message board as I think it has convinced me that this mod is attainable at my skill set.  Seems greedy to ask any further questions, but would you be able to look at my specific situation and provide feedback?

 

Just upgraded from an '03 1500 Silverado LS that I have had for 10 years to a 2015 Silverado LT with the DL8 power heated mirrors. Looking to upgrade to tow mirrors (aftermarket likely, but could be up-sold to GM product for a good reason or two).  Current mirror features include power adjust, manual fold, and heated. The only features I would like to move forward with on the tow mirrors would be the Amber running lights, turn signals, power adjustment, and heated. I am not looking to get into the power fold, or power extend versions.

 

Would my situation require any additional harnesses or adapters for use with these features, in you opinion? If so could you provide part numbers so I would know what I need to procure before opening the door up?  I can provide my VIN if needed, but my truck was built in October of 2015 in TX if that helps.

 

Thanks in advance for any help that you can provide!

There are no power extend (telescoping) options for these mirrors.  All manual telescoping.  

 

Since your truck is a 2015, you'll want to inspect your door jamb connector harness.  You want to see if in the door jamb/cabin side of the connector, pins 9 and 11 are present.  This will tell us if the cargo light (white rearward shining light) and the amber running light circuits were ran to the door jambs.

 

861082865_X500ConnectorDetail.PNG.1b9a0b64bcb2ed2d83be8c4635e2d471.PNG

 

You will need either to swap door harnesses OR modify your factory ones.  We have products to support either option you choose at our site - www.HarnessDR.com

Pdub New Member

Pdub

Posted
Posted

I located the temp sensor behind the grille. No power fold or extend. The only upgrade on these new mirrors are the amber clearance lights on the front and the Rear facing cargo/ reverse light. Just need to figure out how to tie them into the BCM or existing circuits.

  • 3 weeks later...
pgamboa Senior Enthusiast

pgamboa

Posted
  • Author
Posted
how can i tell if my truck has/needs the k40 option for the exhaust brake?
are the side mirrors turned on/off by the rear defroster?
 
thanks,
confused
[email protected]

Check your glove box for the K40 RPO Code. You can also check your passenger side mirror and look for a plastic temp sensor probe on the bottom of the mirror (lower cap)


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pgamboa Senior Enthusiast

pgamboa

Posted
  • Author
Posted
I’m looking to upgrade my mirrors on my 2014 Chevy Silverado 1500 and was seeing how much will it cost 

What trim do you have? Do you have seat memory?


Sent from my iPhone using Tapatalk
Neal Lanham New Member

Neal Lanham

Posted
Posted

PGamboea,

I want to say thanks for providing the center console swap over cable. It worked perfect. My next project is DL3 mirrors. I would like to order your custom harness to change my DL8 mirrors to DL3's.

I will order the switch replacment Part # 23154702, can you make the cable to match that switch? Also where is the best place to pirchase the DL3 mirror?  Let me know the next step to get the cable ordered?  Thanks Neal Lanham.

  • Like 1
silver10z71 New Member

silver10z71

Posted
Posted (edited)

Anyone have any luck finding switch 23154702?  I ordered PGamboea's harness and have a set of mirrors sitting here, but can't find this switch anywhere (there's one on Ebay but it doesn't sound they actually it in stock).  Everywhere I have checked is sold out.  Any help would be greatly appreciated!!

Edited by silver10z71
  • Like 1
rbrjr1 Enthusiast

rbrjr1

Posted
Posted

@pgamboa I purchased a couple ready made harnesses in December to upgrade my DL8 to DL3 mirrors.

Finally had a chance to install them today and it couldn’t have gone better.

Another happy customer, thank you!

  • Like 1

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