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

[21RST6.2]

If I purchase LTZ or HC seats & memory seat switch will it be a plug and play for the seats? I have a 2021 RST with heated leather but want memory seats. Do I need to purchase the power folding mirrors as well? I don’t really need them. 

[21RST6.2]

On 8/15/2020 at 1:29 PM, Rally6.2RST said:

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)

If I purchase LTZ or HC seats & memory seat switch will it be a plug and play for the seats? I have a 2021 RST with heated leather but want memory seats. Do I need to purchase the power folding mirrors as well? I don’t really need them

[CrapMechanic]

epic thread Rally.   Thanks

 

Would appreciate your thoughts on a moon roof installation.  Feasible?  Ridiculous? 

 

 

[obiloki69]

On 11/12/2020 at 9:47 PM, Rally6.2RST said:

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.

What is BCM and WAMS?

[bdallas]

On 1/12/2023 at 9:06 AM, obiloki69 said:

What is BCM and WAMS?

BCM=Body Control Module - https://en.wikipedia.org/wiki/Body_control_module

WAMS=White Automotive & Media Services - https://www.whiteautoandmedia.com/

[pewterliftedz]

@Rally6.2RST any updates on this, did you ever try to program the BCM to make the passenger window motor work normally?  How about cooled seats?  Rear heated seats?  I’m looking for a set of seats right now to do this on my 21 Trail Boss that has blind spot and heated leather seats. 

[CotyM]

I know this is a thread revival on huge proportions (sorry). I'm SOLELY interested in JUST power folding mirrors. I have a 2020 GMC Sierra Elevation (non-power folding). Based on everything I have read, the seat swap is to make this process plug and play, but the passenger folding mirror will NOT work to date? Is that accurate? I have a local shop looking into this for me and might be looking at $4,000 to do it. So any and all information is appreciated to make sure my ducks are in a row before I go down this path. Thanks for the help.

[pgamboa]

I have started this project as I have had **some** free time. I've had the parts for some time sitting the garage.

 

But finally able to get the Denali Seats installed into my 2021 Silverado LT along with the center console and rear heated seats. Driver seat memory is operational! Heat is retained, cooled not working (also waiting for WAMS for the release of BCM Programming). But being able to get power folding operational relies on Driver Memory Seat Module (MSM). Swapped out driver side and all but power fold worked. I can see the mirror trying to fold but limps in its attempt. Think these mirrors have junk motors in it. They are also Sierra mirrors and don't quite sit flush so I'll be on the lookout for Silverado mirrors.

 

The door handle swap had some melted "rivet" type fasteners that I had to pop. So that sucked LOL.

 

Passenger side - EXACTLY like @Rally6.2RST stated. So I'll be following his workaround for now to regain passenger window control. 

 

Key fob fold works, power mirrors adjust works, reverse tile, mirror memory, etc. works. Puddle lamps not working at the moment and don't know what drives the front spot light at the moment either.

 

More to come. Thanks @Rally6.2RST for the support so far!

[Back in a Bowtie]

ok little bit of a zombie thread though others have beat me to it... Anyone try this on a refreshed truck?  REALLLLLLY want to add memory and power passenger to my 24 silverado.  Couldnt care less about power fold mirrors.  

[brisk00]

So question, I have a 2019 LT Trail Boss, if I just want reverse mirror tilt, do I just need a driver seat with the memory function or do I need the upgraded mirrors as well?

[Pablo Cruz]

Hey, i replaced everything but the mirrors still dont work what am i missing?

[CJ89]

On 8/27/2020 at 7:00 PM, Rally6.2RST said:

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

Hi, I know I am years later in this. Not sure if you remember or not. But how did you make this bypass harness. Did you use you keep your factory door harness. Then just cut the new door harness and spliced everything together? I tried doing this to my 2019 Silverado in 2022 but failed. But now I really want to do it to get the memory function. I’ve had the AT4 seats in since 2022.