Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
full bulletin at NHTSA ↗2015 RAM ProMaster 2500 electrical problems
moderate Owners of the 2015 RAM ProMaster 2500 have filed 4 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
When does it fail?
Of the 4 electrical complaints filed for the 2015 RAM ProMaster 2500, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA electrical complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
full bulletin at NHTSA ↗No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
full bulletin at NHTSA ↗WIRING, Body Before replacing this harness, please contact FCA Redacted Content to see if a repair kit is available for your application. If no response in 15 minutes, proceed with repair. Please email pictures of harness defects to FCA Redacted Content
full bulletin at NHTSA ↗Battery Tester Warranty Code Procedures, Midtronics Charger Update Process
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
After an extended period of time, the headlight assembly becomes destroyed from the constant burning of the vehicle daytime running lights. This issue on this model vehicle requires the assembly to be replaced within 25,000 miles from the last installation.
Buyer beware I never been treated so badly, this dealership is the worst when I went to pick up one of my vans there was 2 of them in the service dept and I was told that I was able to come to pick one up and this time I was so lucky to get a rental and was told that they were taking the rental back when I arrived even though the still had 1 of my other vans and the service manager he said that…
The engine needs to get replaced. It blew the gaskets. Headlights stopped working. I took it to the dealer and was told it was the bulbs. Bulbs were switched out and they still didn't work. Sometimes I have to turn the truck off then on again in order to get the transmission to properly work.
Purchased a new 2015 promaster 2500 in 2015 and experience engine problems after 2 years. In 2020 fuel injection and engine cooler fan issues. Each time the light bulbs (headlights) are changed they go out within a few months. I'm scheduled for a few recalls and waiting for the parts to come in for the engine cooler fan and the shift cable. I would never buy a Dodge Ram truck again.
Common questions
How serious is the electrical problem on the 2015 RAM ProMaster 2500?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 4 complaints filed, electrical issues most often appear around 37,312 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.