dtspitcherguy

I do not believe the park assist goes through the radio other than beeps and I have only used PAC module before. I would remove the dash piece and unplug/replug the connector to your park assist. May not have fully inserted plug completely. If that does not work, put OEM radio back in and check if you get them back because it could be a bad module messing up data signals. Finally, I would clean the senors. I know I have trouble in my 09 when I get any ice, snow, etc on them. May be something else, but that's where I would start.

I used the same tool as SAMS819K2XX on my 2009 because air pressure never seemed to work and it worked great. Only took about a minute to do all four. Also works on wife's 2012 Terrain.