Service 4wd

[Snakes709]

So i have used 4hi 3 times now and each time, right after i switch it from 2wd to 4wd, i get a “service 4wd system”. Today i got that and “service parking brake” as well.  Anyone else have this issues?  Truck drove fine, but just showed the 4wd icon in red after the msg.  It eventually goes away and shows white which pisses me off because its gonna be one of those “can not duplicate” if i bring it into the dealership. 

[Snakes709]

Brought the truck in today. They said multiple codes were showing, reset and relearn flash for the ecu. Good to go, hopefully it stays that way. 

[Pancake0341]

I had the relearn and it didn't fix it, I have another appointment today, so we'll see. 2 people I know with the issue on their 2018 and 2019, both needed the sensor housing dried and cleaned, then resealed and it fixed it

[Snakes709]

45 minutes ago, Pancake0341 said:

I had the relearn and it didn't fix it, I have another appointment today, so we'll see. 2 people I know with the issue on their 2018 and 2019, both needed the sensor housing dried and cleaned, then resealed and it fixed it

Mine did it a few more times since that post.  But hasn't done it lately. There was an update the truck did not to long ago, curious if that had something to do with it because it hasn't done it since the update.