What did you do to your AT4 today?

Got the check engine light, pulled codes, and scheduled another trip to the dealer... that's 4 now in less than a year.

2023 AT4 3.0L Diesel with 49k miles.

P22FE - NOx Sensor Performance Bank 1, Sensor 2
P04FB - Crankcase Ventilation Hose Connection Sensor Range/Performance.
 

I installed the Desert Does It front seat gear mount. Just a note - if you have the OEM rubber floor mats with the AT4 logo on them, you might have to do what I did and cut part of the side out of it if you also install the extension. Also I think I'm going to have to cut along the bottom of the floor mat too if I want to use the mounting along the bottom of the seat. But I still like it, just the floor mat is in the way.
 

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I installed the Desert Does It front seat gear mount. Just a note - if you have the OEM rubber floor mats with the AT4 logo on them, you might have to do what I did and cut part of the side out of it if you also install the extension. Also I think I'm going to have to cut along the bottom of the floor mat too if I want to use the mounting along the bottom of the seat. But I still like it, just the floor mat is in the way.
I can't tell how yours is installed, but the ones I received have a relief notch that allows that big hump on the back of the mat to kinda flow behind it.

The first time I tried to tuck the mat behind the desert does it bracket I gave up and was about to cut/trim, but then I said it's just formed rubber and strong armed it behind. I know it didn't feel good on my fingers. I also didn't have the mat pinned on the retainer studs.

It created a bump up around the mat pins, but once the mat is tucked behind for a few months it conforms and is ALOT easier to remove and replace.

Here are the OEM All Weather mats in the Denali LD...

20211002_105559.webp


20211002_105552.webp


Here is a shot of the OEM AT4 HD carpet insertable mats...

20250426_112100.webp


20250426_112344.webp
 

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I can't tell how yours is installed, but the ones I received have a relief notch that allows that big hump on the back of the mat to kinda flow behind it.

The first time I tried to tuck the mat behind the desert does it bracket I gave up and was about to cut/trim, but then I said it's just formed rubber and strong armed it behind. I know it didn't feel good on my fingers. I also didn't have the mat pinned on the retainer studs.

It created a bump up around the mat pins, but once the mat is tucked behind for a few months it conforms and is ALOT easier to remove and replace.

Here are the OEM All Weather mats in the Denali LD...

View attachment 34618

View attachment 34619

Here is a shot of the OEM AT4 HD carpet insertable mats...

View attachment 34622

View attachment 34624
I can't tell how yours is installed, but the ones I received have a relief notch that allows that big hump on the back of the mat to kinda flow behind it.

The first time I tried to tuck the mat behind the desert does it bracket I gave up and was about to cut/trim, but then I said it's just formed rubber and strong armed it behind. I know it didn't feel good on my fingers. I also didn't have the mat pinned on the retainer studs.

It created a bump up around the mat pins, but once the mat is tucked behind for a few months it conforms and is ALOT easier to remove and replace.

Here are the OEM All Weather mats in the Denali LD...

View attachment 34618

View attachment 34619

Here is a shot of the OEM AT4 HD carpet insertable mats...

View attachment 34622

View attachment 34624
 

Ahhh! I think I know why I couldn't get the mat to fold behind the panel - I have mine flipped. The smaller end is on the driver side. Oh well, who needs an uncut floor mat anyway? LOL Thanks for the pic.
 

Well, I uninstalled the dealer instlalled tracking device.
View attachment 34626
I'm sure that's likely from the factory. Not sure why the dealership would put that in your vehicle, unless you financed it directly through the dealership and I don't know of any "new car" dealerships that offer in house financing directly from them. But I can guarantee you that Onstar can still track that vehicle.
 

I'm sure that's likely from the factory. Not sure why the dealership would put that in your vehicle, unless you financed it directly through the dealership and I don't know of any "new car" dealerships that offer in house financing directly from them. But I can guarantee you that Onstar can still track that vehicle.
That piece of shit ain't from the factory. gm sells every vehicle to a dealer. gm could care less if a person defaults on the loan.

Like you said...OnStar can still track that vehicle. That's what the factory installs!
 

That piece of shit ain't from the factory. gm sells every vehicle to a dealer. gm could care less if a person defaults on the loan.

Like you said...OnStar can still track that vehicle. That's what the factory installs!
Well, the dealership could care less if you default on the loan since a third party is going to finance it - unless it’s financed by GM Financial. But either way, it can still be tracked - IJS. 😀😀
 

I'm sure that's likely from the factory. Not sure why the dealership would put that in your vehicle, unless you financed it directly through the dealership and I don't know of any "new car" dealerships that offer in house financing directly from them. But I can guarantee you that Onstar can still track that vehicle.
Wrong! Dealerships do it. Not factory. Look at your “options”. It will be listed as “security” or some BS like that. Watch the above posted videos. Mine was the one that used the relocation OBD port. The factory port was zip tied under the dash. Long story I told dealer to take it out. They said they did and I didn’t get charged for it. Well I installed a Banks idash and kept getting communication errors. So I called banks. The tech told me what to google and look for. The posted videos led me right to it.
 

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