BlueAT4

I have had the same issues with my 2019 AT4. My cameras tend to go out when it rains or I take the truck through the car wash. It seems like a lose connection somewhere.

UPDATE, I Start my truck this morning and put it in gear, the truck moved forwarded under its own power. The engine light is still on, I did not have the time to dig any deeper before going to work. I am wondering if I have a fluid leak. It could be a low Transmission fluid level issue.

UPDATE, I Start my truck this morning and put it in gear, the truck moved forwarded under its own power. The engine light is still on, I did not have the time to dig any deeper before going to work. I am wondering if I have a fluid leak. It could be a low Transmission fluid level issue.

yes it has the 10 speed 10L1000 transmission

4 April 2024 This morning I started up my truck to let it warm-up. I Loaded a few boxes that I needed to take to my parents’ house. I Jumped in, drove down the driveway, turned left on the dirt road and headed for the unguarded railroad crossing that I drive over every day. I slowed down to verify that the track was clear, barely crawling up the raised track bed that is an obstacle to tractor trailers, it keeps them from driving down our road. As my 2019 GMC Sierra AT4 crested the small hill and was sitting on top of the railroad tracks I pressed down on the gas and the truck didn’t move. The 6.2L engine was at 2,000 RPM and there I sat fully exposed to whatever train decided to hit me. People only breakdown on the railroad tracks in the movies right. I sat in the driver’s seat stressing about how to get my broken yet otherwise undamaged truck off the tracks. So, I turned the truck off and turned it back on again hoping that it was a computer glitch and not the Transmission. The 6.2L engine roared to life and I put it in gear, the engine sounded great even with 75,000 miles on it. As I turned gasoline into exhaust the truck stood like a monument on the top of those tracks. I tried putting the truck in reverse and there was movement. I was able to back the truck off the tracks. In my moment of euphoria, I put the truck back into drive knowing that reverse had somehow solved the problem, this time the truck failed to climb up the little rise. At this point in the story, I would like to let everyone know that the side mirrors and the camera on the tailgate were in good working order. The truck drove just like it should at 10 mph in reverse all the way back to my house. The good news is that I will have the truck paid off in a couple more months. It’s a good-looking truck I ordered it from the factory in December of 2018 I wanted a dark blue truck and there were none available in my area at the time. I opted for the 6.2L engine, because why not, eliminated the sunroof and the seat vibrator (Lane Departure warning) and then I waited and waited. When it finally arrived at the dealer in May 2019 it was love at first sight. It has been my daily driver ever since. I would like to replace this transmission with an improved version. any suggestions are appreciated. This vehicle tow's The Boy Scout troop trailer every once in a while.

4 April 2024 This morning I started up my truck to let it warm-up. I Loaded a few boxes that I needed to take to my parents’ house. I Jumped in, drove down the driveway, turned left on the dirt road and headed for the unguarded railroad crossing that I drive over every day. I slowed down to verify that the track was clear, barely crawling up the raised track bed that is an obstacle to tractor trailers, it keeps them from driving down our road. As my 2019 GMC Sierra AT4 crested the small hill and was sitting on top of the railroad tracks I pressed down on the gas and the truck didn’t move. The 6.2L engine was at 2,000 RPM and there I sat fully exposed to whatever train decided to hit me. People only breakdown on the railroad tracks in the movies right. I sat in the driver’s seat stressing about how to get my broken yet otherwise undamaged truck off the tracks. So, I turned the truck off and turned it back on again hoping that it was a computer glitch and not the Transmission. The 6.2L engine roared to life and I put it in gear, the engine sounded great even with 75,000 miles on it. As I turned gasoline into exhaust the truck stood like a monument on the top of those tracks. I tried putting the truck in reverse and there was movement. I was able to back the truck off the tracks. In my moment of euphoria, I put the truck back into drive knowing that reverse had somehow solved the problem, this time the truck failed to climb up the little rise. At this point in the story, I would like to let everyone know that the side mirrors and the camera on the tailgate were in good working order. The truck drove just like it should at 10 mph in reverse all the way back to my house. The good news is that I will have the truck paid off in a couple more months. It’s a good-looking truck I ordered it from the factory in December of 2018 I wanted a dark blue truck and there were none available in my area at the time. I opted for the 6.2L engine, because why not, eliminated the sunroof and the seat vibrator (Lane Departure warning) and then I waited and waited. When it finally arrived at the dealer in May 2019 it was love at first sight. It has been my daily driver ever since. I would like to replace this transmission with an improved version. This vehicle tow's The Boy Scout troop trailer every once in awhile.

https://www.gmc.com/protection-plans You can buy it directly from GM at this site.

Front Camera Wiring Harness I recently purchased an AT4 which included 4 side mirror cameras (2 forward and 2 aft) a rear camera and a trailer hitch camera. I opted out of getting the review mirror camera and the front grill camera when I ordered the truck. I really like the overhead view that is displayed in the dashboard using data from all the cameras. There is a noticeable black space at the front of the truck were the front camera should be. My Question is simple, Does anyone know if the wiring harness for the front cameras are already installed? I am hoping that the camera harness is there, and I will be able to buy that front camera, bolt it on, plug it in and have the dealership activate it in the computer.

Using Premium Unleaded Gas in my AT4 had failed to produce an increase in gas milage. Simple math makes 87 octane the best fuel to use.

The ejection seat is the most likely source of the noise.

I love the look of that Leer Cap. I hope they put it into production soon.

I purchased my new AT4 last month. Now that the excitement is wearing off I have started to notice little things about the truck. Every time I open the door I can hear an electric motor noise. This truck has the standard side step bumpers. Is it possible that the factory installed the electric motor for a retractable step on the truck?