Sync 3 Stuck in Boot Loop

fwiw this is in the FAQ / Common Issues

Car Battery Dies Quickly / APIM Doesn’t Seem To Turn Off When The Car Is Off

If you are having issues where the APIM doesn’t turn off after the car ignition is off and door opened.

In ForScan set the APIM As-Built 7D0-06-01: x1xx-xx
In UCDS set the APIM DEO5 > “illumination Gateway” to C1MCA