Jump to content

Upfitter switches

Truckchauffeur
 Share

Recommended Posts

FirstAscent Enthusiast

FirstAscent

Posted
Posted
My just picked up my 2020 2500HD Duramax. As I bought off the lot, and the truck I selected did not have the upfitter switches optioned, so I need to 100% self install.  I took a look under the hood, and the firewall pass thru doesn't seem to include the "nub" that is cut to allow the power pass thru. My truck was mfg in Feb 2020.  I can't tell from reading the past pages of posts, so I'll ask. Does the upfitter install work with diesel? I'm ready to order the parts, but as has been noted many times, the parts are not specified for the 2500s (although I get it that they fit), just not sure about the Duramax. Maybe the power pass thru is different?  I can select the Upfitter option on the chevy.com website to build a truck, so I think it will work. I'd just like confirmation.
 
Thanks
 
Edit:  I climbed up on a ladder to peer into the cavernous engine bay and the firewall. I looked way farther back and saw the "nub" that is used for the pass thru. I also went under the dash I spotted the connector taped to the harness near the fuse box. Sure sounds like it will work. Debating if I should just cut a hole in my existing (one button start version) knee bolster instead of buying the one with the outfitter switch cut out.  I guess time to order...

Yes you can install in a duramax no problem. I did in mine.

Btw, the factory doesn’t really install much for you, you still have to do 98% by yourself (or pay a shop).
All the factory does is install the knee bolster with the switches in there (not wired) so it only saves a little time.
  • 2 weeks later...
  • Replies 146
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Kevin Monaghan
Kevin Monaghan

They do light up too, the 4 blunt cuts out the bottom are for your connection. #5 is the roof beacon wire that is coiled near the 3rd brake light. (snowplow prep pkg)

Say When
Say When

I’m happy to report that my 2020 Black-on-Black GMC Sierra 2500HD SLE CC LB 4WD "L8T” Gas truck was delivery on 02/14/2020 with Upfitter Switches Factory installed.

Robo9831
Robo9831

Well the first picture is similar to the one in my truck. Just a different color. Well I added a 5 aux switch panel to it today. I didn’t want to cut into my dash just to add some switches. Plus I wan

Posted Images

Gerstein1989 Enthusiast

Gerstein1989

Posted
Posted
On 12/13/2019 at 9:48 PM, Kevin Monaghan said:

https://www.gmupfitter.com/files/media/photo/1314/UI Bulletin 153_wip.pdf

Mine came loose in the truck, install is customer/ upfitter responsibility. looks like a big job.

 
Hey wondering if you had any issues with the fuses in switched ignition. My upfitter switches work when I have the fuses set on constant. If I have them on switched the relays don’t engage. Wondering if you ran into this and if you have any idea why this might happen. As working fine since I installed them and today it started acting up. Thanks. 
troydej New Member

troydej

Posted
Posted

Im actually looking to add these as overhead aux switches in my Ford... anyway i think i just need the physical buttons and ill wire everything to a relay box, ect, to mate with my wiring.

 

Two questions:

-Id like to know if these are momentary buttons? or "push and lock" then "push to release"?

-And would anyone be able take dimensions of the buttons including bezel?  it looks like maybe 1"x4" but its hard to tell. 

Kevin Monaghan Enthusiast

Kevin Monaghan

Posted
Posted
On 7/15/2020 at 7:23 PM, Gerstein1989 said:
 
Hey wondering if you had any issues with the fuses in switched ignition. My upfitter switches work when I have the fuses set on constant. If I have them on switched the relays don’t engage. Wondering if you ran into this and if you have any idea why this might happen. As working fine since I installed them and today it started acting up. Thanks. 

I installed everything and still have not used them for anything as of yet. All on constant power for now. Worst case, you should be able to bring it back to the dealer  as it is an OEM option/accessory. 

 

Gerstein1989 Enthusiast

Gerstein1989

Posted
Posted
8 hours ago, Kevin Monaghan said:

I installed everything and still have not used them for anything as of yet. All on constant power for now. Worst case, you should be able to bring it back to the dealer  as it is an OEM option/accessory. 

 

Hey thanks. I actually figured it out. There’s actually an ignition fuse under the hood and it wasn’t making contact with the fuse properly. Pushed the pins closer and now I have no problems 

  • 4 weeks later...
Indycanard New Member

Indycanard

Posted
Posted

I just installed the Upfitter switches in my 2020 HC.Took almost 6 hours. It would have been 4 hours, until I dropped a screw under the center console. I ended up totally removing the console and Bose subwoofer box to get to the screw. It was found. Otherwise the install went fairly well. I'm sure I could probably do it again in under an hour if I had to. I was overly careful to not break/bend/stretch the plastic bits. I picked up the whole kit from someone who got one with their truck but decided to do something else.

 

The kit I had was for a non push button start. Since mine was a push button start, I cut a square hole in my bolster and installed the switch block.  I have the non-push button start black bolster (84487351) with upfitter switch cutout available if anybody wants it. $20+shipping. I'm near Seattle.

 

 

  • Thanks 1
Indycanard New Member

Indycanard

Posted
Posted
On 7/16/2020 at 5:25 PM, troydej said:

Im actually looking to add these as overhead aux switches in my Ford... anyway i think i just need the physical buttons and ill wire everything to a relay box, ect, to mate with my wiring.

 

Two questions:

-Id like to know if these are momentary buttons? or "push and lock" then "push to release"?

-And would anyone be able take dimensions of the buttons including bezel?  it looks like maybe 1"x4" but its hard to tell. 

The rectangular cutout for the switch block is 1.5" x 3.95'. The switches are "push and lock" then "push to release". When turned on, they sit a bit below flush and are back lit. When off, they sit more flush and unlit. They toggle relays in the added fuse box you can hear switching.

 

LSX Z28 Enthusiast

LSX Z28

Posted
Posted
9 minutes ago, Indycanard said:

I just installed the Upfitter switches in my 2020 HC.Took almost 6 hours. It would have been 4 hours, until I dropped a screw under the center console. I ended up totally removing the console and Bose subwoofer box to get to the screw. It was found. Otherwise the install went fairly well. I'm sure I could probably do it again in under an hour if I had to. I was overly careful to not break/bend/stretch the plastic bits. I picked up the whole kit from someone who got one with their truck but decided to do something else.

 

The kit I had was for a non push button start. Since mine was a push button start, I cut a square hole in my bolster and installed the switch block.  I have the non-push button start black bolster (84487351) with upfitter switch cutout available if anybody wants it. $20+shipping. I'm near Seattle.

 

 

I did the same, except I had the bolster with push button start, and I needed one the one without. 

  • 1 month later...
Daniel Dusablon New Member

Daniel Dusablon

Posted
Posted

I have plow prep package, under the seat was the plow upfitter package(8466970)  listed in bulletin 147, as well as the wire harness (84732643) in 161 . I'm not sure if the dealer just didn't get the switches or I need to order it, is there anything else I need? does the switch just plug in somewhere under the dash? seems like the power listed in bulletin 153 is the same as the plow upfitter package? You'd think if your truck has plow prep package, the switch would be part of it automatically

Mikemjr1 New Member

Mikemjr1

Posted
Posted
On 8/13/2020 at 10:06 AM, Indycanard said:

The rectangular cutout for the switch block is 1.5" x 3.95'. The switches are "push and lock" then "push to release". When turned on, they sit a bit below flush and are back lit. When off, they sit more flush and unlit. They toggle relays in the added fuse box you can hear switching.

 

Does anyone know of a "momentary switch" that is available to replace one of the push on  push off switches? I would like to use one of these buttons for an air horn. 

  • 3 weeks later...
Roy V Enthusiast

Roy V

Posted
Posted
On 10/2/2020 at 1:25 PM, Mikemjr1 said:

Does anyone know of a "momentary switch" that is available to replace one of the push on  push off switches? I would like to use one of these buttons for an air horn. 

I plan on using one switch to turn on the air horns and wire tap off the original horns to trigger the relay of the air horns. This way, both horns will work off the horn button. Yes the factory horn will blow at the same time but you'll never hear it.

Roy V Enthusiast

Roy V

Posted
Posted
On 10/2/2020 at 1:25 PM, Mikemjr1 said:

Does anyone know of a "momentary switch" that is available to replace one of the push on  push off switches? I would like to use one of these buttons for an air horn. 

I plan on using one switch to turn on the air horns and wire tap off the original horns to trigger the relay of the air horns. This way, both horns will work off the horn button. Yes the factory horn will blow at the same time but you'll never hear it.

Roy V Enthusiast

Roy V

Posted
Posted

I guess after this is installed, you still have to drill through the firewall to get your power wires outside to your accessories where you need them?

gearheadesw Senior Enthusiast

gearheadesw

Posted
Posted (edited)

Im still amazed this is the way we buy new trucks now, have to install our own ordered parts. What's next, we have to install our own oil to get it off the lot?

Edited by gearheadesw
Roy V Enthusiast

Roy V

Posted
Posted

I finished the rest of the install the factory left out tonight. My knee bolster was already installed by the factory. I wasn't about to take the whole dash apart to mount the fuse/relay box even though I do this kind of work for a living. The factory should have screwed it in place while the bolster was out. I was able to get the two screws in behind the installed knee bolster with my fingers and with a short socket (7 mm) and a swivel head 1/4" drive ratchet, tighten them to the box. Reaching up behind the bolster and clicking in the two plugs wasn't too bad either.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • PunchT37
      OCI, not when but why?

      By PunchT37 · Posted

      When I was there, most to all did not have an hour meter. They just did 5000 miles on regular vehicles and 3000 on police stuff. The modern oil change monitors should take into account engine hours, weather, etc. I don`t use the monitor on my stuff. I pull the stick, look at it, smell it, rub it between my fingers, etc. That`s my oci.   I have had many engines. Some bracket race. No problems doing things my way. I was in the mechanic business for 30 yrs or so. I still do things the old school way. Don`t care who laughs at me.   Understand, I was in the main shop. We didn`t do oil changes or tires. We had a service station for that. I don`t remember the hours they used for tractors, lawn mowers, etc. Something in my head says 250 hours.
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I don't know how far back vehicles had hour meters, be it driver accessible or diag accessible but was wondering if there was any rule of thumb your shop came up with in regards to an hour limit on engine oil regardless of the miles on the oil.    I know with construction or farm equipment its almost always based on engine hours for maintenance scheduling as no other metric really applies other than a seasonal time limit that one self imposes on items like engine oil.  
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I'm not sure what to say on that mess but I will say that is an odd thing for that mechanic to speculate on as per assuming its been run out of oil a few times as the odds of that engine having instead piled up with a complete seizure would be very high if such events had actually taken place. However there is nothing saying that the oil has ever been changed although once again, what filter was on that engine as that would tell part of the story if its possible to figure out if its a factory installed filter or not. Too many items unknown and a lot of speculation, but regardless of that its one fubared mess that is mind boggling to see for a vehicle that new and its hard to imagine how it ever made it that far in life looking at the top of the engine.    His scanners, I've watched him before here and there and I'd have to say if I recall correctly that some of his scanning equipment is one or two steps up from a child's Exo Sketch 😋
    • PunchT37
      OCI, not when but why?

      By PunchT37 · Posted

      I agree. That`s a LOT of sludge for 12,000 miles. I tossed that out here since this is an OCI thread. There`s tons of people here that do not post.   I used to work on a city fleet. That includes police cars and fire trucks. Lesson is, not to only use the odo for oci. A police car has a ton of hours on the engine for the miles it shows. And, not just idling, directing traffic. They beat on these things.   Course, since it is a Kia, they were gonna use the "100,000 mile warranty" for their OCI.😉
    • AlVeron
      Manufactuer's Defect - Paint Failure - Cherry Red High Country 2021 Suburban

      By AlVeron · Posted

      CLASS ACTION SUITS?  Does anyone know if there is already a class action suit for the paint - which was to have been fixed, changed in after the 2020 GM vehicles?  Does it look like this?    Just started 3 weeks ago - No help from GM as of yet - Dealer will not assist in speaking with GM on my behalf. Confirmed it is the paint they use along with the way the put it on that causes it to fail.  Clearly a Manufacturer's Defect. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...