Infotainment Trailer App - Not Showing Trailer

[SoxFan904]

Hello everyone, I know this may be a long shot and is very specific to my truck and RV, but I wanted to see if anyone else out there experienced the same thing I am and can provide any suggestions or insight.  I cross posted this across several groups Chevy/Trail Boss and RV groups for greater visibility.

 

I currently have a 2020 Chevy Silverado 1500 LT Trail Boss.  It has a factory tow package with the factory break controller.  Scanning the QR code on the driver’s side, it came with the IOS Infotainment system (no built in nav, just Maps+).  After months of research, I updated to the IOU (advanced trailering app, navigation and wireless CarPlay) version of the Infotainment radio module from Infotainment.com

 

The IOS version had a trailering “app” on the screen that would only allow a light check and would activate when my trailer was plugged into the 7-way connection with my headlights on.  Additionally, the break controller would also indicate the trailer breaks were active.  Since the install of the IOU unit, when I plug in my trailer, the lights work as intended, as well as the trailer break controller also indicates a trailer is connected, however, the trailering app in the Infotainment screen does not “register” a trailer connected.  

 

When troubleshooting, Infotainment suggested to disconnect the battery for 20 min, then connect, lock the door, turn on the car and reconnect, this did not work.  Additionally, I read that plugging in the 7-way while the car was off fixed this issue for some folks, that also did not work.  I also read information about Chevy changing the “power output” from the 7-way connectors in 2020 and newer models, and that caused a problem with some trailers.  I purchased a Curt 57003 LED-Compatible RV Blade Vehicle-Side Trailer Wiring Adapter, which was recommended to “signal” the Infotainment system a trailer is connected, especially for computers that have LED lights (which mine does).  This is also supposed to solve the problem of the 7-way harness in a custom “control box” as my trailer is a Keystone Cougar 30BHS with a Giggy box, where the 7-way harness is connected to.

 

I apologize for the lengthy post, but I am baffled as to why this isn’t working.  I pasted some links to different articles and information below.  I also am going to look into the GM trailer simulator (listed below) and also see if any friends have a trailer I can plug into the 7-way or 4-way to “test” and see if its my camper or my truck causing the issue.

 

Any insight or suggestions are much appreciated, and thank you in advance.

 

Links:

Curt 57003: https://www.amazon.com/dp/B00AFVOF3M?ref=ppx_yo2ov_dt_b_fed_asin_title

 

IOU Infotainment Upgrade:

https://infotainment.com/shop/interior-accessories/infotainment-radio-upgrades/2019-2022-chevrolet-silverado-mylink-iou-gps-navigation-radio-upgrade/

 

GM Trailer Presence Simulator (I am considering purchasing, but it is very expensive):

https://techlink.mynetworkcontent.com/wp-content/uploads/2019/02/GM18-460.pdf

 

https://static.nhtsa.gov/odi/tsbs/2024/MC-10249034-0001.pdf

https://static.nhtsa.gov/odi/tsbs/2022/MC-10213515-0001.pdf