Parasitic Draw and Continuous UConnect Reboot Issues

[Jacob.j.edmiston]

I have a 2021 Ram Big Horn. My truck turned up with a parasitic draw about 5 months ago while camped in Silverton, CO. I originally thought it was a bad starter, so replaced the starter. The new starter did not start the truck. Using a jump box, I got the truck started and got home so thought I just had a bad battery. During this multiple hour drive, the truck drove fine with no UConnect issues.

I took the old (now removed) starter to get tested — it tested just fine. I returned home to put the factory starter back on the truck. After replacing the starter, the UConnect began having issues. The UConnect seems to be stuck in a continuous reboot — it never gets totally “on.”

I took the truck to Batteries Plus and got the batteries replaced — one battery had a bad cell. Batteries Plus thought the UConnect would eventually reboot and begin working properly.

Over the last several months, the parasitic draw is still present. If I do not drive the truck every couple days, the battery dies. When I do drive the truck, the UConnect cycles on and off with continuous reboots. I have been unable to determine if the parasitic draw and UConnect issues are related or if their timing is coincidental.

 

[1791]

it's possible your not getting the key far enough away. the truck won't totally go to sleep till the key's are at least 35 feet away.
you can try the old remove the battery cables and touch them together to drain any and all capacitors, infotainment may assist you with a uc update