What is the “center console screen”? If you mean the Sync screen, your APIM is too old for this to be functional, I believe. Can you provide a picture of what you are describing?
All of the features you appear to be having an issue with are controlled thru the BCM, but the ambient lighting is adjusted or communicated thru the APIM. If you have FORScan, connect to the vehicle and save the BCM configuration as it presently is. Once you have done that then perform a BCM reset via FORScan in the tools menu. This will cause a lot of DTC’s which will need to be cleared after an engine start cycle.
To perform the BCM reset, turn on the ignition, but do not start the engine. Reset the BCM with FORScan following any messages on the screen, then shut off the ignition. Wait 15 seconds or so, and start the vehicle with engine running. Run engine for a minute or so and turn off vehicle completely. Wait a minute or so, then connect FORScan with ignition on, engine not running. Clear DTC’s and rescan for DTC’s. There should be none. Now, start the engine and check the functionality of the features.
This is not a Sync 3.4 issue, but it is possible that you may have a corrupted APIM asbuilt. With FORScan, reload the entire APIM asbuilt for the unit and perform a master reset. Turn off vehicle completely for at least 1 minute, then restart vehicle with engine running. This will clear any corruption in the APIM.
You can download your original vehicle asbuilt for all modules here:
Download and save the file. You can print the webpage to pdf using your browser.