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Signal mirror upgrade !! Need help

bmws1k

By bmws1k
in Modifications & Accessories

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bmws1k Enthusiast

bmws1k

Posted
Posted

I own a 2014 Silverado 1500 with heat and power mirrors (no signals ) and my buddy has 2016 mirror that has signals built in that he is selling and was wondering if they would work on mine. The mirrors will fit but not sure if the signal will work. I don't know if there is already a post about this I tried to search for one but had no luck thanks

 

 

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newdude Senior Enthusiast

newdude

Posted
Posted

No. You would need to run the tow mirror upgrades to make just the signals work, so new door harnesses and a special jumper harness that is required for 2014 trucks. The truck is sort of wired for mirror signals, but the circuits for them are not to the body side door harness connector. The jumper completes the circuit to the door body side connector, then the new door harness would complete it to the mirror.

 

Now...if there is any open cavities in the connector for the mirror on your truck, you could add a terminal end, some wire and try and tap into the flasher circuit. Would be a hell of a lot cheaper, if it can be done.

krdeal Enthusiast

krdeal

Posted
Posted

AND, I believe you have to have GM turn on that feature thru a reflash of the computer... Once you do run the three wiring harness'.

sk Senior Enthusiast

sk

Posted
Posted

Here is a simple way to tell:

 

If you don't have the memory seat buttons above the driver's door handle then you don't have the correct harnesses or BCM software to make the DL3 mirrors work (don't ask me why GM bundled it this way but they did).

bmws1k Enthusiast

bmws1k

Posted
  • Author
Posted

So do you guys think the mirror plug will plug in to my factory harness ? Or are the pins different for different years ? And if so will the power and the heat work but no signal and fold and just hard wire the signals somehow after ?

RBSilvy85 Enthusiast

RBSilvy85

Posted
Posted

So I have a 2015 crew cab with DL8 mirrors. If I wanted to do this upgrade obviously I would need the mirrors and I would just need the dealership to reporgram the bcm for them? My cirrent mirror are power and heat but manual fold if that makes any difference.

bmws1k Enthusiast

bmws1k

Posted
  • Author
Posted

Yep that's correct I bought the mirrors and both door harnesses from truck that's had power fold and signals and will be doing the install next week I will keep you posted

 

 

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stevencox93 Enthusiast

stevencox93

Posted
Posted

Ok thanks I kinda figured it wasn't that easy

 

 

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If I was you I would just hard wire the mirrors. I did that on my truck since when I got my tow mirrors the door harnesses weren't available. I ran my wires to the BCM for signals and all since my truck was just heat and power

sk Senior Enthusiast

sk

Posted
Posted

there is no need for programming just need to buy the switch and powerfold will work for turn signals to work either buy both door harness or hardwire them in

 

That's true for powerfold and turn signals but you will not get the auto-dim or reverse-tilt without new harnesses and a BCM upgrade.

fataslp Enthusiast

fataslp

Posted
Posted

I have a set of DL3 mirrors with tungsten iridium covers if anyone is looking for some

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