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Hello, these are disabled by a different fault being set in the smart junction box. I will show you the information to correct it. You can attempt to disconnect the battery for 10 minutes in order to reset the code and see if the overhead buttons begin working.
Using a diagnostic scan tool, check the SJB for DTC C1999.
Perform repairs as required.
NOTE:THE DTC C1999 WILL NOT CLEAR WHEN CYCLING THE IGNITION FROM OFF TO RUN TO OFF. A DIAGNOSTIC SCAN TOOL MUST BE USED TO CLEAR THE DTC AND RE-ENABLE THE OPEN/CLOSE FUNCTION AFTER THE FAULT CONDITION IS REPAIRED.
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