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I personally am very impressed with the ride quality of my AT4 and wouldn't be looking to make it stiffer with a new coil over system.

Wondering how this worked out. Looking to give it a try. Please let us know! Thanks.

Lots of posts on this. Go back through older posts. There is a trailer light control module reprogram that will probably help. Just look back through older posts.

Darcy I'm not sure if I am following this thread correctly so I need to ask. What size are your tires and is your truck stock with no leveling kit. Looks great to me and sits nice. My truck is also a white AT4 with no level so I'm very curious. Thanks.

I recently partially took my dash apart. I ended up taking the top tray out and the front windshield defrost grill out. The defroster grill pops out with a plastic trim tool. The center dash tray does as well once the single screw is removed. While reinstalling the screw in the dash tray I pulled back on it and tightened the screw. I then popped the defroster grill back in, the rattle seems to have stopped. At least for the time being. Now the center console squeaks of course.

Can't hear anything except road noise. Even with headphones.

Also having the rattle in my at4. Seems like if I pull back towards me on the center dash storage tray it seems to go away. Does this sou d like the rattle of the ducting on the bar?

I believe the reprogram of the trailer light module widens the acceptable amperage draw and may help with this problem. Not positive though. I know that after changing all running lights to led problem was solved. Then I changed brake / tail lights to led problems arose due to too little draw. I added the resistors and all working at this time. Reprogram also helped with trailer disconnected issue.

Has anyone with these problems tried the trailer light module reprogram I mentioned earlier. It helped my truck a lot. I believe that it widens the acceptable amp draw of the trailer lights substantially. My running lights were drawing too much so it would shut down so I swapped all trailer lights to led. Then my brake a d signal lights were not drawing enough so it shut down so I added the resistors. Now after reprogram and new lights everything works as it should. Also eliminated the trailer disconnected message that used to show up frequently. A combination of new lights with the proper amperage draw plus the refresh has almost completely eliminated these problems.

I have had many trucks in the past and none of them sealed perfectly to keep water out with a tonneau cover. None of them let much water in either. My new AT4 is exactly the same as all of the others. It let in exactly the same amount as my others. I have the gm rev cover on my AT4.

Might be enough to make a thief move on to the next trailer instead of yours. Or maybe they may not even notice. I know that snowmobiles and trailers are stolen in Canada from the hotels pretty frequently so if someone passes mine and messes with the next one I'm ok with that. My cousin had 2 trailers and 8 sleds stolen in just 1 trip.

I have been getting over 21mpg consistently driving on the highway even with intermittent traffic as I said earlier. And that is from Long Islant to VT. Lots of hills. 2019 AT4 wit stock 20" wheels and tires.

If you read the link posted in the beginning of this topic you will see that there is nothing to fix. The flashing is supposed to happen. It's part of the system. I believe it is for security. The truck " checks" to see if the trailer is still connected.

Does anybody remember the old days when a flashing led on their dash would tell a would be thief that the security system was armed?

I love it! I have been wondering if there was something available from the older trucks that would fit the new ones. How well does that charger work? If its consistently good I may pick one up.