mlawre10
New Member
- Joined
- Sep 11, 2023
- Messages
- 13
- Reaction score
- 8
Afternoon everyone,
I was hoping someone could help me out with an issue I'm having. I attempted to upgrade to the Uconnect 8.4 in my '21 2500 Bighorn, but it was an epic fail. I purchased the radio a while ago, and I'm thinking it might be bad. I followed all the directions using the Gateway Module Bypass Module/AlfaOBO and confirmed the changes. I ended up removing the 8.4" radio and reinstalled the 5" radio. Now my AC is dead, and my trailer brake background light (switch still works), traction control off, and tow/haul mode are dead. Any help would be appreciated.
Choose ram 2500 (DJ/DR)
Choose body computer select body control module my 2019 or 2020.
Choose Car configuration change. Go almost all the way down the list till you come to
Cab Net ICS integrated center stack. Click it and enable it.
Scroll down a couple and click on Cabin Net DCSD display screen module and enable it.
If you cant get AC to work move to next step
Now for hvac controls.
Connect again to body control module go to car configuration then vehicle config 3 HVAC (found only hvac 2 and enabled)
Select value tab : dual zone ATC .
Hit start. And done
Note: sometimes it take a few times driving for sirus radio and back up camera to start working again.
I was hoping someone could help me out with an issue I'm having. I attempted to upgrade to the Uconnect 8.4 in my '21 2500 Bighorn, but it was an epic fail. I purchased the radio a while ago, and I'm thinking it might be bad. I followed all the directions using the Gateway Module Bypass Module/AlfaOBO and confirmed the changes. I ended up removing the 8.4" radio and reinstalled the 5" radio. Now my AC is dead, and my trailer brake background light (switch still works), traction control off, and tow/haul mode are dead. Any help would be appreciated.
Choose ram 2500 (DJ/DR)
Choose body computer select body control module my 2019 or 2020.
Choose Car configuration change. Go almost all the way down the list till you come to
Cab Net ICS integrated center stack. Click it and enable it.
Scroll down a couple and click on Cabin Net DCSD display screen module and enable it.
If you cant get AC to work move to next step
Now for hvac controls.
Connect again to body control module go to car configuration then vehicle config 3 HVAC (found only hvac 2 and enabled)
Select value tab : dual zone ATC .
Hit start. And done
Note: sometimes it take a few times driving for sirus radio and back up camera to start working again.