2012 Infiniti QX56 Steering wheel buttons not working

So i took my suv into the mechanic to get the catalytic converters changed and when i received it 2 weeks later i tried to use the cruise control but it didn’t work then i tried to use the volume for the radio it didn’t work either. Neither did any other buttons. Also the airbag light and the traction control light was on (not the traction control off).