What's new
By:

Frustrated new guy

john151ama said:
The Garmin looks like a great option. Was just checking that out. I was surprised though on the actual amp rating, only 30 amps per switch, 100 amps total. They advertise use for fridges, compressors etc. even an average Viair air compressor has a 40 amp or higher rating and fuse. So the Garmin would still limit what you can use it for or you could use it as a trigger to control a solenoid to power higher amp accessories.
Click to expand...
30 amps will handle any refrigerator that I know of. An air compressor that will need the hood open to connect an air line can be wired on a dedicated switch and I see no need for a wireless function.
 

AT4 Forum Fav 👍

NOCO Boost Pro GB150 3000A UltraSafe Car Battery Jump Starter, 12V Battery Pack, Battery Booster, Jump Box NOCO Boost Pro GB150 3000A UltraSafe Car Battery Jump Starter, 12V Battery Pack, Battery Booster, Jump Box0 - Grab one through Amazon!
I owned a 2019 ford f250 myself and thought the switches came in the truck. Also miss the keypad enrty. I know I can add all of this but for the price of the truck, it should already be installed. GMC needs to wake up. Same thing having to use android auto so I can use the navigation or pay 50.00 a month for
onstar. Dealer wanted almost 1000.00 to install the switches. I think fords are under 200.00 I do feel like I down graded buying this truck. After I bought my truck, GMC sent a survey so I gave them my honest opinion not that it will do any good but they did write me back and asked me to be on a survey group
 

RTaylor said:
I owned a 2019 ford f250 myself and thought the switches came in the truck. Also miss the keypad enrty. I know I can add all of this but for the price of the truck, it should already be installed. GMC needs to wake up. Same thing having to use android auto so I can use the navigation or pay 50.00 a month for
onstar. Dealer wanted almost 1000.00 to install the switches. I think fords are under 200.00 I do feel like I down graded buying this truck. After I bought my truck, GMC sent a survey so I gave them my honest opinion not that it will do any good but they did write me back and asked me to be on a survey group
Click to expand...
I think your new truck will grow on you, as mine continues to grow on me. I still find the constant push to OnStar services extremely irritating, and if GM forces that by discontinuing CarPlay support I will probably sell the truck and start over with Ford or Dodge.

It’s not that the electronic interface is the most important characteristic in a truck, but it does impact our enjoyment, and selling the truck to support another brand — voting with my wallet — is the only meaningful thing I can do to express my irritation. New truck sales volume and profit margin are the ONLY things manufacturers give a shit about. If their market declines they’ll adjust.
 

Whaler27 said:
I think your new truck will grow on you, as mine continues to grow on me. I still find the constant push to OnStar services extremely irritating, and if GM forces that by discontinuing CarPlay support I will probably sell the truck and start over with Ford or Dodge.

It’s not that the electronic interface is the most important characteristic in a truck, but it does impact our enjoyment, and selling the truck to support another brand — voting with my wallet — is the only meaningful thing I can do to express my irritation. New truck sales volume and profit margin are the ONLY things manufacturers give a shit about. If their market declines they’ll adjust.
Click to expand...
I hope you are right. I do like the truck and I hope GM wakes ups, or it looks like I will be back with Ford
 

This guy’s review (linked below) seems spot on to me. He notes some of the same frustrations from GM cutting corners to save $50 on a $100,000 truck, but he spends much more time on the important bottom line: The Duramax/Allison combination is fantastic. And the independent front suspension, though not as strong as the solid front axel on the Ford and Dodge/Ram alternatives, is plenty strong for the vast majority of applications. That’s doubly true of the new stronger front end components, and the IFS drive/ride is massively better than it is on the solid axel trucks. If you’re going to spend 75% of your drive-time on challenging offroad trails you probably bought the wrong vehicle, but if 75% or more of your time is on maintained roads you probably made the right choice. You also made the right choice if you plan to bump the power up a bit with a tuner… The HO Ford and Dodge diesels have slightly more power, but the Duramax has loads of power compared to the trucks of even a few years ago, and MUCH more power than most of the black-smoke-blowing, over-fueled diesels from ten years ago. And for folks who want even more, the Duramax will take a tune that will outperform either competitor without requiring new head-studs or other expensive mods.

The video demonstrates the massive power/torque of the Duramax, and the fantastic engine breaking and great trailer-towing program features, while towing a 20,000+ pound trailer up and down long grades in central Oregon. If you haven’t spent the time to wade through all of the manual, the discussion of lockers will be interesting too. In the end, this reviewer would choose the gas truck if he wasn’t towing all the time, mostly because of cost and complications associated with the diesel and its maintenance, but he was definitely impressed with the truck — in spite of GM’s stupid decisions on accessory switches and 12v plugs, which he bitches about early in the video.

Duramax Review (on ZR2)
 

Last edited:
There is a gm unfiltered auxiliary switch kit that is optional for purchase but for the price I feel like you can get a way better aftermarket solution and doesn't require cutting
 

dugedug said:
Just a bit of patience paid off...


404parts.com

2024-2025 GMC Sierra AT4 Denali HD Upfitter Auxiliary Switches

Factory-style upfitter switch kit for 2024–2025 GMC Sierra HD AT4, AT4X, Denali & Denali Ultimate. Includes genuine GM parts, fuse block, and no programming needed.
404parts.com 404parts.com
Click to expand...
Well, kinda. A little bit of patience, $600, a $50 roll of 12ga wire, and full day will get you what should have been included in a $106,000 truck.

This is progress for sure, and that’s great, but you’ll still have to run the hot lead for each individual switch through the firewall. GM could have delivered the whole package installed for pennies on the dollar, including a wiring harness that left convenient hot-leads for every switch in the cab and under the hood… like Jeep, Ram, Ford…
 

Wait... so the kit provides wire for a large (50 or 60 amp) feed that taps off the under hood fuse block? Then the switch has 5 circuits but we have to buy and run the load side wires from the switch ?

As I'm writing this I guess it makes sense, they wouldn't have known where to run the wiring harness before the switch was available or manufactured. Hopefully in the 2025 or 26 trucks the wiring harness is already there.
 

Whaler27 said:
Well, kinda. A little bit of patience, $600, a $50 roll of 12ga wire, and full day will get you what should have been included in a $106,000 truck.

This is progress for sure, and that’s great, but you’ll still have to run the hot lead for each individual switch through the firewall. GM could have delivered the whole package installed for pennies on the dollar, including a wiring harness that left convenient hot-leads for every switch in the cab and under the hood… like Jeep, Ram, Ford…
Click to expand...
They always leave room for DIY :)
 

pinebaron said:
They always leave room for DIY :)
Click to expand...
Yes. It seems like they saw value in easing/simplifying/facilitating DIY efforts in years past. Now they’re complicating DIY and buyers are paying a surcharge to purchase the added inconvenience. :oops::ROFLMAO:

The other manufacturers are doing some of this too. I can't make sense of it. Ford provides upfitter switches from the factory, and they still provide fused hot leads in the cab and under the hood, but for 2024 they moved the wiring bundle from its convenient spot near the battery to the middle of the engine compartment, 14 inches down, under a fuse box, so it’s a huge pain in the ass to access the wires. On top of that, the wiring leads aren’t long enough to reach the top of the engine, so all connections have to be made at arms’ length.

Sometimes I wish I could talk to the people making these stupid decisions. I wonder if any of them have ever owned a truck.
 

how.webp
 

You must log in or register to reply here.
AT4 Forum Favs 👍 View All

GMC AT4 Forum Photos

View All

New Posts

Most reactions

Back
Top