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2019 Ram 2500: check engine light

12 of the 194 complaints about the 2019 Ram 2500 describe check engine light.

owner complaints
12
of this car's complaints
6%
typical mileage
8,450
recalls
0
Is there a fix? 96 service bulletins cover this area of the car. See below

Check engine light by model year

What owners say

Filed Aug 30, 2026 · Transmission · IN

While attempting to pass traffic the truck did not want to shift above or down from 4th gear. This has happened twice now and both times I had to pull over and restart the truck. My safety was put at risk due to lack of propulsion, high rpm of the truck to maintain speed before pulling over. Check engine light came on both times. Although there appears to be a lack of the federal safety agency reports, I have been sharing this story with others and looking at Facebook groups and it seems the 68RFE transmission is rife with issues and commonly fails while driving, regardless of towing or not.

Filed May 19, 2026 · Electrical · SC

My 2019 Ram 2500 with push‑button start became completely immobilized due to failure of the RF Hub Module. The truck has full electrical power but will not crank, will not click, and will not shift out of Park. The Check Engine Light blinks several times and stays on, and the security system does not activate. This is a known failure on 2018–2020 Ram HD trucks. The RF Hub controls the start authorization and immobilizer system, and when it fails the vehicle cannot be moved, even into Neutral. This is a safety hazard because the vehicle can become stranded in traffic or in unsafe locations. The part is on national backorder with almost no availability in the [XXX] , leaving owners without transportation for weeks or months. Chrysler/Stellantis has not issued a recall or provided alternative solutions. This is a critical safety defect that immobilizes the vehicle without warning.” INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 1, 2025 · Acceleration, Fuel system · AL

Following completion of the Y78 (high-pressure fuel pump) and XQ1 (emissions) recall repairs in April 2024, our 2019 Ram 2500 immediately began experiencing misfires, fuel system issues, and ongoing performance problems. These symptoms have persisted for over a year and have never been resolved despite repeated service visits and escalations. The vehicle suffered multiple HPFP failures, including one that caused fuel to leak into the crankcase, resulting in approximately 19 quarts of fuel-contaminated engine oil. Despite technical service bulletins calling for specific system flushes and tests post-repair, the original dealership did not follow these protocols or provide documentation confirming that the required inspections (fuel pressure, contamination checks, EGR/DPF/DEF system functionality) were ever completed. A new dealership confirmed the presence of metal debris after the fuel filter, suggesting the system was still contaminated even after the prior recall-related flush and HPFP replacements. They also found non-functional emissions components covered under XQ1, including a failed DPF urea pump and a faulty NASA pressure sensor. These failures were not documented or addressed by the original repair facility. Despite these clear safety risks, the recall is considered “completed,” leaving us with a vehicle that is still experiencing symptoms consistent with the original recall condition. The failure to properly inspect, document, and address these defects has placed our safety at risk and caused prolonged loss of vehicle use. The issue, confirmed by a 2nd authorized dealership, identified fuel contamination & failure in multiple components of the emissions systems. The check engine light appeared prior to the initial failure and has recurred each time the vehicle was returned after service. Given the continued presence of recall-related symptoms and the lack of proper inspection & documentation, this unresolved recall should be reopened and investigated

Filed Nov 23, 2024 · Fuel system · AL

The truck was initially brought in on April 10, 2024, for a continuous regeneration issue with the DPF filter, showing codes P242F and P1451. The dealership diagnosed it as requiring a new EGR valve and possibly a DPF filter assembly, under the VB6 emissions recall and extended warranty (XQ1). After replacing the EGR valve, the Y-78 HPFP safety recall was completed. Upon completion, the technician noted multiple fuel-related DTCs, lack of power, and metal debris at the fuel control actuator caused by a failed CP4 pump. At this time, the dealership was unaware of the XQ1 warranty, so instead of replacing the DPF filter, they force regenerated it. Upon picking up the truck, the check engine light came on (April 26, 2024). After reporting it, the dealership stated the DPF filter needed replacement, and on May 26, 2024, it was replaced under XQ1. However, after picking up the truck again, the check engine light came back on, and diagnostics revealed misfires across all six cylinders (codes P0300–P0306) and abnormally high fuel pressure at the wire harness—issues that weren't present before the EGR valve or HPFP recall repairs. The truck has since remained at the dealership, with multiple unsuccessful attempts to fix the issue by replacing the fuel lifter, wire harness, fuel filter, and a second Y-78 recall replacement due to "faulty parts" from the first attempt. The dealership charged a diagnostic fee and suggested replacing rocker arms and push rods, but this did not resolve the problem. The dealership has since recommended replacing the PCM module but then retracted the recommendation and is now requesting a new diagnostic fee to tear down the engine, remove cylinder heads, and inspect for debris, as the misfires and high fuel pressure have persisted since April 26. The safety concern is that the truck behaves as though it is starving for fuel when the engine light reappears, with stored codes showing misfires and high fuel pressure, related to Y-78.

Filed Nov 20, 2024 · Brakes, Electrical · FL

While driving 50 mph in traffic 2019 Ram 2500 Bighorn 6.7 Cummings Diesel lost power, steering failed and brakes failed. I had to use the emergency brake to avoid a crash. I had my daughter and 2 grandsons in the truck. ESC or ESCM light and engine light. Then the truck wouldn’t turn off. Then there was an awful noise from under the hood - it was a now loose pulley and belt.

Filed Nov 7, 2024 · Fuel system · 19,129 miles · AL

The contact owns a 2019 Ram 2500. The contact stated that the check engine warning light was illuminated. The vehicle was serviced under the federal safety agency Campaign Number: 21V880000 (FUEL SYSTEM, DIESEL); however, the repair failed to fix the vehicle. The contact stated that the check engine warning light remained illuminated after the recall repair. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 19,129.

Filed Jun 11, 2022 · Engine, Fuel system · CA

I was driving home from the market and the truck slowed down to 16 mph. I could not go any faster. I pulled over to the middle of the street and turned the truck off for a minute. I then restarted it and attempted to drive it somewhere safe. The truck finally came to a stop right before an intersection. I had to get out because cars were coming fast. I was afraid someone was going to hit me. I called AAA right away. They told me the tow truck was on the way and that they would send the police. The police never showed up. The tow truck got there in about 15 minutes. The only information i have is the fuel system has a error code of P0087 and reads Fuelrail system pressure-too low. Check engine light is on, It did say something about the fuel system and the truck will not start. No one has looked at the truck yet. I will be calling the dealer this coming week to see about getting it checked out and having recall issues taken care of.

Filed May 17, 2022 · Acceleration, Electrical · IN

When driving down the road, intermittently my truck will lose throttle input. I get a check engine light and the electronic throttle control light. this is extremely dangerous when pulling out into traffic or even pulling out onto a higher speed road because the truck will not let me accelerate. It will just sputter and I have to fight it to about 35mph when I can activate cruise control then am forced to drive only using cruise control no matter what the road or traffic is like which is also not very safe. So far, I am at 3 service appointments over the span of about a month and a half, over $500 invested and the dealer cannot find the culprit or issue causing this. I know that fault code P2121 is set off but it does not lead to much.

Filed May 5, 2022 · Airbags, Brakes · 9,000 miles · NJ · crash

The contact owns a 2019 Ram 2500. The contact stated that while her son was driving approximately 24 MPH, the check engine warning light illuminated and suddenly the steering wheel became inoperable causing the driver to lose control of the vehicle and crash into a parked vehicle. During the failure, the brakes were also inoperable. The air bags failed to deploy. There were no injuries reported. A police report was filed and the vehicle was towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The approximate failure mileage was 9,000.

Filed Dec 18, 2020 · Engine · 8,450 miles · NM

I just purchased a used 2019 ram on day two check engine light comes on loss of power while driving at highway speed. Dealer is telling me it is codep0299 they checked and cleared code. Now 12/18/ back with dealer for same code p0299 and loss of power or going 8nto limp mode.

Filed Jun 17, 2020 · Electrical, Fuel system · 350 miles · NY

While driving in a 40mph zone, the electronic throttle control (etc)light came on and the truck accelerated uncontrollably. After braking and getting the vehicle stopped, it was shut off and restarted. The etc light went out but the check engine light came on. Made an appointment with the dealer the next day and while en route to the dealer, the etc light came on, this time resulting in a power loss. It happened while entering a highway ramp, and could only get the vehicle speed gradually up to 40. Dealer attempted to clear codes and repair, but kept vehicle overnight for a test drive. During the dealer test drive, the etc light came on and the problem occurred again. So far there hasn't been a resolution, but the vehicle is unsafe to drive. It is a brand new 2019, with only approximately 400 miles on it, owned less than a week.

Filed Sep 18, 2019 · Acceleration, Brakes · 300 miles · CA

Tl* the contact owns a 2019 ram 2500. While driving 65 MPH, the rpms increased and the engine revved. The contact released the accelerator pedal and manually shifted the gears in order to return to the correct reading. In addition, the computer system that controlled the radio and camera would glitch and hesitated to change views. Also, while driving approximately 40 MPH in an intersection, the vehicle suddenly accelerated, despite depressing the brake pedal. The contact stated that the ignition and check engine warning indicators illuminated. The contact was able to pull the vehicle over to the side of the road and shifted into park; however, the vehicle continued to rev as if the accelerator pedal were depressed. When the contact turned off and restarted the vehicle, all the warning indicators illuminated and the vehicle stalled. The vehicle was towed to crown motors (located at 555 cypress ave, redding, ca 96001, 888‑755‑5922) where it was diagnosed that the egr valve closed and needed to be replaced. The vehicle was repaired. While driving 45 MPH uphill, the vehicle stalled without warning. The contact was able to pull the vehicle over to the side of the road where it came to a rolling stop. The contact stated that the accelerator and brake pedals failed. The contact had the vehicle towed to the same dealer to be diagnosed, but no codes were found. The vehicle was not repaired. The manufacturer was made aware of the failures and provided case number: 64570388. The approximate failure mileage was 300.

Questions about the 2019 Ram 2500 check engine light

Is check engine light a common problem on the 2019 Ram 2500?

12 of 194 owner complaints about the 2019 Ram 2500 (6%) mention check engine light. The model year with the most reports is 2018.

Is there a recall or service bulletin for this on the 2019 Ram 2500?

There are 0 recalls and 96 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2019 Ram 2500

Fuel pump 18Loss of power 13Stalling 10Fire or smoke 9Adaptive cruise 5Engine failure 5Wipers 5Won't start 5

All model years of the Ram 2500

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