donbaldw

Update. Took truck to GMC Dealer and the shop foreman performed numerous SW updates to the trailer & video processing module. I then deleted my trailer profile and recreated from scratch using the measurements above. I began driving and the calibration still would not complete. I remembered another post where someone mentioned that nothing foreign could be visible to the rear camera during calibration, so I removed my bumper mounted spare tire and the calibration began and completed within 2 minutes. In hindsight, a couple of years ago, we had 5th wheel trailer with this camera setup and never had an issue with the calibration, probably as a result of the spare tire being mounted underneath.

It states to drive forward to calibrate but never completes. The Transparent Trailer Icon at the bottom of the screen shows a yellow bar above it fully filled in. I've been in contact with my local GMC Service Dept where I purchased my truck and so far have had no success in resolving. I was told that they were trying to get in touch with TAC but don't know what that means.

Hi Bruce, I did try a new trailer profile with the 118" height with no success. I also have an inexpensive TPMS programming tool that works with the tire sensors on the trailer.

Thanks for your response. The camera does everything it should with the exception of never completing the Calibration for the "Invisible Camera". It's mounted on the rear of our 28 foot travel trailer in the location quadrant that is shown in the installation documentation. The GMC dealer has verified that PN 85118298 is the correct camera for the 2024 Sierra HD's. I have also lowered the height of our trailer to 118" based on a known Software issue. I have an appointment with the local GMC Service Dept on 1/27. Hopefully, they will be able to diagnose and resolve.

Have a brand new 2024 3500HD Denali and Trailer Camera PN 85118298. Have gone through all of my travel trailer measurements including lowering the height to 118" and cannot get it to finish the calibration. I've been working with the GMC dealer that sold me the truck 3 weeks ago and am getting nowhere. Do you have any suggestions? Any details on your TAC case?

Placed order with dealer for new 2021 3500HD SRW Denali on 10/23. GMC built on 12/7. Picked up on 12/26. Use GMC Chat for Info.