2019 RAM 3500 Electrical System Problems

Recurring water intrusion through firewall/wiper cowl causes electrical corrosion and loss of vehicle communication (CAN bus). Dealer repeatedly documented: • 05/19/2022: “Cowl drains clogged; water entering passenger side” (Invoice #XXX). • 08/15/2025: “Water intrusion through firewall due to wiper cowl drains being clogged with organic debris; water found in passenger kick-panel connector” (Invoice #XXX). Resulting failures include: • BCM shorted (02/16/2022 – replaced). • HVAC module failure (10/15/2022 – replaced). • Intermittent CAN bus, loss of gauges while driving (09/04/2025 – Invoice #XXX; dealer suspects internal corrosion from prior water leaks). • 10/16/2025: Dealer states “old water damage to BCM causing corrosion on circuit board and disrupting bus circuits”; BCM replaced again (Invoice #XXX). • 10/20/2025 (current): Dealer states “ORC (airbag module) dead on bus; ABS module loss-comm with ORC; replace airbag module” (Workorder #XXX). The truck has lost instrumentation and safety systems in rain, with airbag and ABS communication...

The contact owns a 2019 Ram 3500. The contact stated that after accelerating from a red light and while driving approximately 30 MPH, there was an abnormal ticking sound coming from underneath the hood, and the vehicle started to decelerate. The contact coasted to the side of the road and inspected the engine while attempting to restart the vehicle; however, the vehicle failed to restart. The vehicle was towed to the dealer, who diagnosed that a rod had fractured in cylinder #1, causing the engine to fail. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact became aware of NHTSA Campaign Number: 20V511000 (Engine and Engine Cooling, Electrical System); however, the VIN was not included. The manufacturer was informed of the failure and informed the contact that the VIN was not included. The failure mileage was approximately 55,000.

Radio some time turns off by it's self. Transmission has locked up in park after driving and put in park ,and will not go into any other gear, unless truck is turned off. After turning truck back on it will engage into preferred gear. It has done this for few time since February.

The contact owns a 2019 Ram 3500. The contact stated while driving at approximately 45 MPH, the Cruise Control was unintendedly disabled and remained inoperative. The failure occurred on several occasions. No warning light was illuminated; however, the "Electronic Stability Control System Malfunctioning" message was displayed on the instrument panel. The vehicle was taken to a dealer to be diagnosed; however, the result was unknown. The contact researched and was made aware of an unknown recall; however, the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 133,000.

The contact owns a 2019 RAM 3500. The contact stated that while driving at 45 MPH, he heard an abnormal squealing sound emanating from the engine compartment, after which the vehicle inadvertently lost motive power. The contact was able to pull to the shoulder of the roadway, where the vehicle was able to restart. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 20V511000 (Engine and Engine Cooling, Electrical System), but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 135,000.

All of my fuse are lose, also the dealership installed a new high pressure fuel pump under recall and now it’s whining and now my pcm is over charging my batteries!!!

P2609 code. Grid Heater Relay. A P2609 code indicates an issue with the intake air heater system voltage or performance and often means the grid heater bolt is failing and has lost its ability to conduct current. There is currently a recall for 2021-2023 models; NHTSA campaign number 23V060000 for the same issue. My truck has 50,972 miles on it.

Poor throttle respond when doing lane change, really really poor throttle respond, especially when doing lane change the throttle supper slow respond can causing a rear end from the safe on incoming lane changed distance to unsafe distance after the lane changed, this seriously can causing the crash by the rear end from the vehicle on the back. It also happened when merge into freeway when throttle is very important for driver to adjust the speed to make vehicle merge into the traffic smoothly. Reported to dealer service manager everytime drop vehicle for servicing but CAN NOT fix the issue. This happened when the dealer upgraded new calibration for power train by other recall. But before power train upgraded my vehicle dont have this poor throttle respond issue at all.

When truck is in cruise control on with driver assist on, if I run off side of road and go over the ridges on the side that alert driver my ABS light comes on saying my driver assist and my cruise control can no longer be used and my ABS breaking system requires a mechanic. If I reset my system all goes back to normal till I go over rough road or ridges. I have less than 10,000 miles on truck. From what I hear from other Dodge owners this is a common occurrence. This has happened on three different occasions.

The contact owns a 2019 Ram 3500. The contact stated while driving 75 MPH with the cruise control activated, the vehicle stated to decelerate without warning. The contact pulled over on the side of the road and examined under the hood and noticed oil on top of the engine. The vehicle was towed to the dealer who stated that the vehicle was experiencing a similar failure to NHTSA Campaign Number: 20V511000 (Engine and Engine Cooling, Electrical System) however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 120,000.

I had a parasitic draw on my battery that became progressively worse to the point that a jump no longer worked to start the vehicle. I bought a brand new battery and it was completely dead within 24 hours even though I had only driven the vehicle about 5 miles and had the vehicle off for over 23 of these hours. I replaced the battery again and left the vehicle running while loading for a trip and 30 minutes later the battery started to release smoke from overheating. Wires and plastics around the battery were starting to melt so I completely disconnected the battery. This 2nd new battery was also dead within 24 hours of purchase. I took the vehicle to a Ram Dealership and after a lot of testing over multiple days they identified the problem as a parasitic draw from the ABS module. Please note the parasitic draw...

Vehicle # 76 MD Tag # 3DS2550 a 2019 Dodge Ram pick up truck was parked at our facility on 7/6/22 at approximately 4:15 p.m. At 5:50 p.m. the truck was observed fully engulfed in flames, we attempted to extinguish the fire but were unable to do so. The Howard County Maryland Police and Fire Deportment were contacted and responded. ( Police Incident # 2259220 Fire Incident # 2022-020323) The vehicle and equipment on the truck are a total loss additionally the heat generated from the fire damaged other company vehicles. Fortunately, the fire was contained and did not spread to adjacent vehicles or buildings. We were awaiting notification that recall could be completed inasmuch as parts for the recall were on backlog and not available.

Tailgate keeps dropping and unlatching. Have taken the truck multiple times. Dealer Larson Ram Puyallup has replaced tailgate latch once but tailgate still unlatches and drops intermittently both parked and while vehicle is in motion. Have called them multiple times but they concluded that they could not replicate issue when truck is in the shop.

The contact owns a 2019 Ram 3500. The contact stated while driving 65 MPH, the check engine warning light illuminated and the started to decelerate. The local dealer was contacted and made aware of the failure. The vehicle was not diagnosed or repaired. The contact took the vehicle to an independent mechanic and was informed that the battery needed to be replaced, the filter needed to be changed weekly, and an unknown sensor needed to be replaced. The vehicle was repaired but continued to experience the failure. The manufacturer had not been informed of the failure. The failure mileage was unknown.

TL* THE CONTACT OWNS A 2019 RAM 3500. THE CONTACT STATED THAT THE ABS AND CHECK ENGINE WARNING LIGHTS WERE ILLUMINATED. THE VEHICLE WAS TAKEN TO RHYTHM CHRYSLER DODGE JEEP RAM FIAT (2210 GALLATIN PIKE N, MADISON, TN 37115, (615) 733-4999) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT AN UNKNOWN SENSOR NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 10,000.

REAR RUNNING LIGHTS STOP WORKING. CHECKED ALL FUSES, WIRING ALL SEEMS FINE. TURN AND BRAKE LIGHTS WORK JUST NO REAR RUNNING LIGHTS. KNOW ISSUE ON OLD MODEL.

2 WEEKS AGO MY BRAND NEW RAM 3500 WITH ONLY 15000 ON BOARD DIDN'T START, IT DIDN'T START IN THE MORNING ON PARKING LOT. CALLED A MECHANIC TO HAVE IT FIXED BUT THEY WERE NOT ABLE. SAME DAY CALLED ROADSIDE ASSISTANCE FOR TOWING AND RAM CUSTOMER SERVICE. RESULTS: -RAM ROADSIDE ASSISTANCE DIDN'T COVER THE COST TO DEALER: REASON: TOO CLOSE TO THE DEALER. -RAM CUSTOMER SERVICE TOOK ALL THE INFORMATION, GAVE ME A CASE ID AND SAID SOMEBODY WILL CALL YOU IN 1-2 DAYS. AS OF TODAY I KEEP CALLING CUSTOMER SERVICE ONCE IN 2 DAYS, THEY KEEP ISSUING NEW CASE ID'S BECAUSE OLD ONCE ARE INCORRECT, AND KEEP TELLING ME WILL CALL YOU IN 1-2 DAYS. NOBODY FROM RAM CALLED SO FAR. DEALER SAID: FUEL POMP FAILED AND THEY'LL GET THE PARTS IN NOVEMBER, (AUGUST 21 NOW) AND I CAN'T TELL THEM ANYTHING CAUSE THEY WILL FIX ME EVEN...

AFTER REPLACING THE EGR VALVE AT 55,000 MILES DEALER WENT TO RESET SERVICE CODES. PCM WAS FOUND TO BE AT FAULT AND UNABLE TO CLEAR CODES. DEALER CLAIMED PCM WAS NOT UNDER WARRANTY. RAM CUSTOMER CARE MADE NO EFFORTS TO REPLACE OR REPAIR PCM. HAVE HAD 9+ ISSUES WITH THE TRUCK. ALL ISSUES HAVE FALLEN OUTSIDE OF WARRANTY BY 3 TO 4 THOUSAND MILES.