My 2020 SLT Acadia is finally getting repaired for its issues on the camera's from Oct 7 to Dec 15 waiting on partsUpdate 10/31/20
So far the only fixes that have been documented have been to replace the coax cable or whole harness which runs under the passenger side floor board area back to the video process module that is under the left trunk area. You have to pull the spare tire covers to access it.
On mine they replaced the video processing module twice, rear camera and tried to reseat a connection X-209. No luck and wanted to replace the front camera next. If you have problem request that they get a field service engineer involved immediately since TAC(GM call center) just remotely requests parts to be replaced. The FSE will come onsite and help troubleshoot.
Mine will not be repaired as I have negotiated a buyback with GM and as such I will not provide any update about my specific camera issue.
Just getting this wrote up to hopefully save some headache for others down the road.
A week after my purchase of a new 2020 Denali with Ultimate package the 360 camera system died with a black screen showing a red triangle with a exclamation point and a red circle with a camera in the middle crossed out with a line. I was able to get it into the dealer the same day it failed and it has been an intermittent issue every since. Short version is the vehicle has had 4 failed repairs now and has been in the shop about 6 times for over a total of 2 weeks. The dealer has been escalating to tech support and then we wait for parts. I have been working with the service manager and senior tech directly to give them as much info as possible. Hopefully we will have all the parts and it will go in for the 5th try next week. I have put in a case with GM customer service to make sure this gets the attention it should. Not too pleased that this is still an issue almost 2 months later. Trying to be extra patient due to all that is going on in the world right now.
They were trying to blame the failure on a wire tap in the rear view mirror for my radar detector. They supposedly played with some connections a well. I went to the dealer and removed the wires and of course it started working. At this time I did not know it was an intermittent issue so I took the vehicle and by the time I got back to work it failed again. They did not even have time to close out the paperwork. Just to prove the rear view mirror connection had nothing to do with it I sent a picture of the camera system working with the plug completely unplugged.
I brought he vehicle back the following week when the same technician was there and he could continue troubleshooting. They ended up keeping the vehicle for 9 days. They were waiting for a video processing module 84755321 for about 3 days. It failed the next day.
Brought it back in and they put some dielectric grease on the front camera due to possible fretting as well as testing some connections. It promptly failed and they ordered a nation wide back ordered rear camera.
The new rear view camera showed up and was installed. Everything was working and failed later that day. Was able to bring the vehicle back in for the senior tech to complete a scan to provide more info to GM. It had a huge list of codes pertaining to the VPM. GM believes the module is bad and have placed another order for one. When the part shows up and I drop the vehicle off they want the tech to do some signal tests from the BCM and if all good replace the module again.
A couple days ago a new symptom showed up. The front camera was completely dead. I was able to bring the vehicle back to dealership for a quick scan again. Now it is still showing the huge list of codes for the VPM and that the front and rear cameras have faults. No further info has been passed along to me from the dealership. I was told they expect all the parts at the end of the week. GM customer service confirmed they were going to have a senior advisor contact me in 2 business days. So far after 2 days I have not heard from them yet.
I will post again once I have more info.