2018 Ram 2500 Engine cooling Problems
- Complaints
- 5about this part
- Share
- 0%of 2,607 total for the year
- Median mileage
- 85,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine cooling of the 2018 Ram 2500, 0% of the 2,607 complaints for this model year. Where a mileage was given, the median is 85,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owned a 2018 Ram 2500. The contact stated that while her husband was driving and pulling a fifth wheel RV, the check engine warning light and another unknown red warning light were illuminated. The contact's husband stopped in the middle of the road and immediately exited the vehicle with the contact's nephews and dog, who were also occupying the vehicle. The contact stated that the driver then noticed that there was a fire underneath the hood. …”
NHTSA complaint #11686408, filed 2025-09, 95,000 miles“The contact owns a 2018 Ram 2500. The contact stated while driving at approximately 35 MPH, the diagnostic trouble codes P24B0, P24B5, and P25C9 were displayed on the instrument cluster. The contact stated that he was able to continue driving. The contact stated that the diagnostic trouble codes were related to the smog and emissions system of the diesel engine. The contact stated that he occasionally towed an RV and was concerned about the towing load on the engine. …”
NHTSA complaint #11622458, filed 2024-10, 75,000 miles“The contact owns a 2018 Ram 2500. The contact was notified of NHSTA campaign Number: 25V720000 (Engine and Engine Cooling); however, the recall remedy was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded the reasonable amount of time for the recall repair. The manufacturer was contacted, and a case was filed. The contact had not experienced a failure.”
NHTSA complaint #11730417, filed 2026-04Related service bulletins
- 10251812Jan 10, 2024Emission Recall 67A D Truck Engine Calibration
- 10248914Nov 30, 2023Emission Recall 67A - D Truck Engine Calibration
- 10242795Jul 12, 20236.7L New Oil Usage Information Incorrect oil used. This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2023 to 2013 HD…
- 10239957May 18, 2023Water Quality When Mixed With Engine Coolant
- 10236933Apr 15, 2023wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
- 10229454Aug 8, 2022COOLER - EGR
- 10228035Apr 12, 2022Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (ECM/PCM) with the latest available…
- 10227983Apr 2, 2022If a Mopar oil filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils.
- 10229059Mar 17, 2022No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
- 10220688Mar 6, 2022Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. When performing diagnosis, an internal engine concern may be suspected.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 3% |
| 2023 | 1 | 2% |
| 2022 | 5 | 3% |
| 2021 | 2 | 2% |
| 2020 | 1 | 1% |
| 2019 | 2 | 1% |
| 2018 | 5 | 0% |
| 2017 | 9 | 1% |
| 2016 | 7 | 3% |
| 2015 | 2 | 1% |
| 2014 | 2 | 1% |
| 2013 | 5 | 3% |
Other parts of the 2018 Ram 2500
2,346 complaintsElectrical system
476 complaintsVehicle speed control
342 complaintsForward collision avoidance
225 complaintsOther or unknown
114 complaintsSteering
87 complaintsTransmission and drivetrain
75 complaintsEngine
37 complaintsSuspension
21 complaintsWheels
14 complaintsAir bags
11 complaintsBack-over prevention (rear camera)
11 complaints
← All problems reported for the 2018 Ram 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology