A software issue with the sunroof module may lead to a battery drain while the ignition is off. This may cause a dead battery if the vehicle is left parked for a couple days, however reprogramming the sunroof module with new software may fix this problem.
Battery Dead After Sitting for a Few Days on Dodge Ram 2500
6 people reported this problem
2010 Dodge Ram 2500 7,000 mi, Visitor
i have a 2010 dodge ram diesel (no sunroon). 1st time truck sat four days and interior lights were dim and insufficient power to start truck. i thought my cell phone charger may have drained battery. used charger to charge battery and restart. truck ran fine and restarted for 1 week no problem. now truck sat for 3 days, no cell phone charger and truck is completely dead.
2010 Dodge Ram 2500 43,000 mi, Visitor
My truck does not have a sunroof. The truck is now out of warrantee so I am paying for repairs myself. Every 2 years the truck will not start after sitting for even a day. I took the truck into the dealer and all three times they told me the batteries failed. I have never experienced batteries going out so quickly. My truck is parked in a garage every night. I now have 43,000 miles on the truck but do not feel safe taking it into the back country incase the batteries fail again. Has anyone else had repeated problems like this
Battries completly dead. Dealer could not find any problem. Jumped it to start. No problem sense.