adding DEZ power fold mirrors and A45 memory seats to a 2019-2020 Silverado RST

[Rally6.2RST]

I got power fold mirrors and memory seats working today.   

I have a loaded RST Silverado but power fold/memory was not an option on RST.   My body harness had all the wires and pin layout for this to work.  I did not have to rewire anything.  I only had to replace harnessess/switches and maybe window regulator.  I also did not need to program the memory module.  I bought power fold mirrors a few months ago when I added 360 camera to the truck so I thought I would try adding power fold/memory and cooled seats.  Cooled seats do not work yet that will need BCM programming.  

 

At first I had everything connected and it didn't work.  This was depressing, then I put down driver window and everything started working.

 

Key fobs folds mirrors in and out.  Driver switch works folding/adjusting mirrors/windows (minus passenger).  Mirrors point down in reverse (when I turn that option on).  I can use fob to put windows down(when I turn option on).  Passenger window is not working correctly, only works from passenger side.  All memory functions work.  Seats vibrate with cross traffic alert(when I turn option on).  All the options to show up in my radio.  Passenger power seat works.  The only thing I don't think works is there are no pop up messages on my speedometer like if I am driver 1 or 2 with memory seats.  I also don't know if puddle lights work yet.  I will find out when it gets dark.  Puddle lights do not work.

 

I found most parts on ebay/ junk yard and lookupgmparts.com

 

Buy list

- Pair of power seats with driver memory seat

- L Power fold mirror 

- L Switch Harness 84449518

- L Switch 84512862

- L Door Harness 84622367

- L Door Bezel w/ memory 84522626 (got on ebay, might have to buy a whole door card dont think they sell just bezel)

- memory switch

- R Power fold mirror

- R Switch Harness 84449516

- R Switch 84559726

- R Door Harness  84622368

- R Window Regulator 84652636 (?? not working right)

Edited October 29, 2020 by Rally6.2RST
update to help others

[topgear1224]

Cost?

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[Rally6.2RST]

On 8/15/2020 at 6:10 PM, topgear1224 said:

Cost?

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$1500-2000.  I already had camera fold mirrors from wheb I added 360 vision. It is alot but I liked seeing what could be done.  I got to get the vented seats working next.  Hopefully WAMS can help with that.

[Ben98gs]

I so want to do this for the memory seats... Sucks to get your seat adjusted perfectly, and then the wife drives it and you have to start all over.  Lol

[Ben98gs]

So you need a right window regulator...  Does this add auto-up to the passenger window like the driverside? 
 

Also, you mention needing a set of power seats, if my RST already has power seats (10-way non-memory drivers), would I still need a passenger power seat?

[Rally6.2RST]

I am having some issue with my passenger window.  I had to replace passenger window motor because new harness had a different plug.  Now it operates from passenger side but when I operate from driver side it stops working.  I think this is related to lin bus codes coming from BCM. so until this is resolved you probably want to hold off on this upgrade. 

[Rally6.2RST]

On 8/24/2020 at 7:21 AM, Ben98gs said:

So you need a right window regulator...  Does this add auto-up to the passenger window like the driverside? 
 

 

Also, you mention needing a set of power seats, if my RST already has power seats (10-way non-memory drivers), would I still need a passenger power seat?

you do not need pass seat but your seat will look different because memory is only available in highcountry and ltz so stitching will be different or have perforations. 

 

you do not gain auto up/down pass window.  my passenger window was acting up so I made a window switch bypass harness for pass door.  i hid passenger auto up/down switch in door panel to control folding/memory mirrors. I use my original switch to operate window. now everything works good and you dont need a window motor after all, unless you want to get bcm custom programmed.

[Rally6.2RST]

this is a pic of bypass harness it was pretty simple.  just connected these to where window motor harness is.

[Rally6.2RST]

pic of window motor harness in folder fold memory door.  i cut here and attached my original window control switch harness.

 

also a pic showing where i hid window switch for memory mirror fold control.

 

so my passenger door has 2 switches one for mirror folding memory. and one for window up down control. 

[Goobax]

If anyone looking to do this, I have the following parts I'm not using:

 

L Switch Harness 84449518

L Switch 84699726

R Switch Harness 84449516

R Switch 84559726

 

[Booma1218]

Will this work on a 2020 LT Trail Boss with the standard mirrors that come on the truck?I really only want the power folding mirrors ..So if I add the harness,and switches will that give me the power mirrors to work on the key fob?

[Rally6.2RST]

15 minutes ago, Booma1218 said:

Will this work on a 2020 LT Trail Boss with the standard mirrors that come on the truck?I really only want the power folding mirrors ..So if I add the harness,and switches will that give me the power mirrors to work on the key fob?

you need the memory seat module it controls the folding and the harness for folding is set up for memory.  if you dont have memory module you cant adjust outside rear view mirrors .  so you need a new drivers seat to get right harness, module and motors unless you get really creative.  i bought used seats so i think that got me out of programming them.

[Booma1218]

19 minutes ago, Rally6.2RST said:

you need the memory seat module it controls the folding and the harness for folding is set up for memory.  if you dont have memory module you cant adjust outside rear view mirrors .  so you need a new drivers seat to get right harness, module and motors unless you get really creative.  i bought used seats so i think that got me out of programming them.

Will look into it..thank you

[Will Holbrook]

So I think I'm reading all what you've done correctly. I have a 19' TrailBoss LT that has heated/power drivers seat and heated passenger seat. I swiped a pair of power/heated/cooled (and probably memory I'm not sure) front seats from a 19' High-Country. I was plaining on either getting the BCM programming from WAM or running a switch for the seat coolers to both sides, but the 10-way power and heaters should just be plug and play for both sides right? Am I correct in thinking that the only thing that will not work if I install my the High-Country seats are the seat coolers? Also, did you ever get your seat coolers working?

[Rally6.2RST]

On 11/11/2020 at 4:10 AM, Will Holbrook said:

So I think I'm reading all what you've done correctly. I have a 19' TrailBoss LT that has heated/power drivers seat and heated passenger seat. I swiped a pair of power/heated/cooled (and probably memory I'm not sure) front seats from a 19' High-Country. I was plaining on either getting the BCM programming from WAM or running a switch for the seat coolers to both sides, but the 10-way power and heaters should just be plug and play for both sides right? Am I correct in thinking that the only thing that will not work if I install my the High-Country seats are the seat coolers? Also, did you ever get your seat coolers working?

power seats are plug and play both sides even with memory for my truck.  heat still worked.  cooled did not.  I did not get BCM programming for cooled yet bc I was waiting to see if WAMS is going to figure out rear seat heating too.