Hi,
Just for curiosity, do the brake lights work? The shift interlock circuit is powered via the brake lamp switch. That's why I ask.
Now, the cluster issue is different. I need you to start by checking fuses M13 and M20 in the under-hood fuse box/totally integrated power module (TIPM).
In addition to checking the fuses, confirm there is power to and from them. They both should have power at all times.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
I attached the wiring schematic for the instrument cluster below so that you have a reference. Also, pics 3 and 4 indicate fuse locations.
Let me know what you find or if you have questions.
Take care,
joe
See pics below.
Images (Click to make bigger)
Tuesday, February 21st, 2023 AT 9:30 PM