2019 Ram 1500: battery drain or dead battery

Filed Jul 21, 2026 · Acceleration, Electrical · FL

​SUMMARY OF ISSUE: Water intrusion from a defective factory rear window seal flooded the Radio Frequency (RF) Hub module, causing severe, dangerous network communication (CAN bus) failures while driving. The removed RF Hub has been retained by the owner and is available for physical inspection upon request. SAFETY RISKS: Power steering repeatedly seizes/locks up while driving. ​Vehicle completely stalls and freezes in active intersections and at highway speeds on I-95. ​Instrument panel illuminates with all warning lights ("Christmas tree" dash) and prompts driver to "Put Vehicle in Park and Put Back in Drive" while actively moving in traffic. ​Vehicle experiences complete power loss, creating a severe rear-end collision hazard. ​TIMELINE & MILEAGE: 60,328 mi (Dec 2022): Initial electrical glitches reported to dealer prior to 100k warranty expiration. ​92,733 mi (Sept 2024): Reported ongoing key fob loss, electrical anomalies, and TPMS drops. ​168,492 km (~104,696 mi): Scanned multiple CAN bus "U-codes" (documentation available). ​104,716 mi (Sept 22, 2025): Leaking rear window seal repaired by dealer. ​~114,000 mi: Worsening symptoms and total vehicle stall. ​DEALER FAILURE & DENIAL: When repairing the window seal, the dealer failed to inspect for interior water damage or check underlying electronics. They refused to open/inspect the RF Hub, claimed they could not reproduce the intermittent issue, and are attempting to blame an unrelated "star connector." The owner opened the RF Hub casing and photographed clear galvanic solder corrosion and water damage directly under the leak point. Component has not been inspected by police, insurance, or manufacturer reps. PRIOR SYMPTOMS: Progressive TPMS loss, "Key Fob Not Detected" while driving, throttle surges at stops, parasitic battery drain, and full dash light warnings—worsening with humidity and rain.

Filed Jun 1, 2026 · Electrical, Visibility · NC

SEVERE SAFETY HAZARD: CASCADING ELECTRICAL FIRE RISK. My 2019 Ram 1500 suffered a catastrophic electrical failure while driving. The alternator's voltage regulator melted, overcharging the system and causing the battery to boil and vent toxic sulfuric acid fumes into the cabin, creating an immediate respiratory and fire hazard. This is the direct result of Manufacturer Defect XL1/XG1 (Rear Window Leak). I have physical dealer records proving Westgate Ram held this vehicle for 19 days in Aug 2022 to fix Water Leak Code 09H2OLEAK. They returned the vehicle claiming it was fixed, but I have geolocated photos showing the window leaking heavily just 17 days later. Because the leak was never resolved, water continuously entered the rear cabin, corroding the RF Hub and creating a parasitic drag that destroyed the electrical grid. CRITICAL NEGLIGENCE: On June 1, 2026, Stellantis Corporate (Case XXX) acknowledged the severity of the fire risk by immediately inquiring if Emergency Services had been contacted, yet subsequently refused to offer a safety tow. When I attempted to escalate, their agents [XXX] , [XXX] , [XXX] , [XXX] ) refused to provide IDs. Furthermore, my phone number is now being rejected by their system; calls to their support line immediately fail or disconnect, leaving a fire-risk vehicle stranded at my residence with no recourse. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 30, 2026 · Acceleration, Electrical · NJ

RF Module lost connection to CAN Bus and caused the vehicle to shutoff while driving. Symptoms include messages about key fob not within range and TPMS not able to communicate with sensors. RF Module was replaced however the issue returned. Other symptoms include parasitic draw caused by RF Module that in turn causes the system to report low voltage while driving. Vehicle has left me stranded on more than one occasion due to RF Module failures. These situations where preceded by no starts and shifter errors. Most of these issues can temporarily be resolved by disconnecting the main battery for extended periods. Dealer or service center has not reproduced the issue. Dealership inspected the RF module during installion of a new RF module after a water leak. The issue first appeared after the dealership repaired the "backlite" window, which was leaking on to the RF module. I suspect this might be related to system updates installed during the window installation service call. All of this started in early 2024.

Filed Mar 1, 2026 · Electrical · NY

Purchased vehicle used in 2024 and purchased a 3 year extended bumper to bumper warranty. The center screen was restarting every 3 minutes and was draining my battery down to being completely dead when it was not running. On 12/15/2025 I brought the truck to a Ram dealer with the problem and it was diagnosed by the dealer (Sansone Auto Mall) as needing to replace the entire radio/HVAC center stack, and it was the cause of the parasitic drain on the battery. The work was approved by my warranty and the parts were ordered. It has been 11 weeks and the parts have not arrived and Stellantis has been unable to provide a timeframe of when the parts will arrive at the dealer to do the repairs. The truck has no defroster or heat rendering it unsafe to be driven on roads. I have had an open case with Stellantis for several weeks and call them frequently to attempt to locate the parts for my vehicle in which they are unable to provide me a delivery date and a repair timeframe.

Filed Jul 3, 2025 · Engine · OR

As we were driving and pulling a 32 foot trailer battery died, luckily we were able to stop safety and charge battery and bought a new battery to get us home. The Mopar 48‑volt motor‑generator unit (MGU)—often referred to as the “eTorque alternator died. There is a back order of currently 4800+ and months to get this part in order to fix a truck that doesn’t start without it. How is this not a recall? This is highly unsafe if we hadn’t been watching the battery voltage as we were driving and noticed it was getting dangerously low potentially causing a huge pile up accident on the freeway with our trailer.

Filed Sep 7, 2024 · Brakes, Engine · HI

2019 Doge ram 1500 quad cab- the engine completely and immediately froze up and locked all tires in the middle of a busy 2 lane street- sounded like only 2 of the 8 pistons were barely firing, was told my engine was "toast-it sucked a valve"! I am an old school mechanic so I take care of every aspect of my truck regularly by professional mechanics- how can a truck not even 5 yrs old with payments still owed have so many issues and now if completely trash? In addition, I have had computer issues, rear camera issues, the side mirror just fell off on its own.....so many issues with this model. How can a dealership and a manufacturer legally sell such a piece of junk? Is there any recourse? Law suit- class action or individual ? I am deseperate for help- I was nearly killed on this street when it all happened- the engine completely died-battery drained-back tires locked up all in an instant while driving 30 mph.

Filed Jul 23, 2023 · Electrical · KS

The Motor Generator Unit stopped charging the battery, which in turn made my battery die. This can be inspected. I was put at risk due to being broke down out of town on the side of a main street. The vehicle was inspected by a local mechanic shop as a Ram dealership was not within their city limits. They were the only ones to inspect it. Prior to the battery completely dying, my check engine light and low battery light came on within 10 seconds of each other. My battery died within 15 to 20 minutes of that happening.

Filed Mar 8, 2023 · Electrical · CA

vehicle will not respond to keys and intermittently will start and drive then die in the middle of the road. Waring lights turn on then go off. truck will be fine for a few days then fail to start and completely drain the battery. Water is entering the vehicle cause moisture and mold on the carpet and possible cause of the electrical problems. when truck is off radio will turn on and off and dome lights flash

Filed Mar 6, 2023 · Electrical · IN

Dead battery. Something in the electrical system is draining the battery. I replaced the battery approximately 2 months ago.

Filed Jan 31, 2022 · Electrical, Fuel system · FL

1) The Fuel Pump broke on our 2019 Ram Big Horn. It only has around 40,000 miles on it. We had it towed to the dealership. They are going to replace the fuel pump mid to end of February due to part shortage. My wife was on the entry roadway to I95 when without warning the truck puttered and died on the entrance ramp. There was no warning lights, messages etc. Luckily she puttered to the side out of the way of speeding cars getting on I95. According to the dealership they have no idea how the fuel pump died. The dealership is the only party that inspected the vehicle. 2) The second problem we are having with the Ram, is the dashboard lights flicker on off for no particular reason. It just happens when it feels like it. We brought it to the dealership and of course it didn’t happen to them so they have no idea why the dashboard lights are going on and off. The rear defroster isn’t working. The battery died as well. We feel there is some type of electrical problem with the truck. We do not believe a vehicle with only 40,000 miles would have the fuel pump die. I know other Ram trims (2500, 3500 etc)have had recalls due to fuel pumps dying and dashboard lights going on and off for no reason. I think this is a problem that needs attention! My wife could have been killed on the ramp to I95

Filed Dec 14, 2021 · Transmission · TX

Battery went dead, display showed power steering failure and the check engine light was on. I had the code read and it was P1DF3

Filed Sep 15, 2020 · Electrical, Engine · 32,002 miles · CA

Vehicle fails to start without any notice or apparent indications of a potential issue.I had someone use a code reader and got the following code p1df3... I checked ram forums and this is a common malfunction. Without warning something drains the battery. No one knows what will fix it yet.