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Engine coolingPart report

2015 Ram 1500 Engine cooling Problems

Complaints
63about this part
Share
4%of 1,459 total for the year
Median mileage
115,116miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 63 complaints about the engine cooling of the 2015 Ram 1500, 4% of the 1,459 complaints for this model year. Where a mileage was given, the median is 115,116 miles. 3 a fire, according to the filers. 3 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2015 Ram 1500. The contact stated that there was an abnormally strong diesel odor coming from the vehicle at startup and while driving, with black smoke coming from the exhaust pipes while accelerating. The vehicle was taken to the dealer, where the contact was informed that the vehicle was overheating and that the catalytic converter was contaminated. …”

NHTSA complaint #11768327, filed 2026-10, 177,000 miles

“The contact owns a 2015 Ram 1500. The contact stated that after refueling the vehicle, the vehicle failed to start. The vehicle was towed to the dealer to be diagnosed, and it was determined that the crankshaft position sensor had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 120,000.”

NHTSA complaint #11635720, filed 2025-01, 120,000 miles

“The contact owns a 2015 Ram 1500. The contact stated while cold starting the vehicle, the check engine warning light was illuminated. The contact smelled an abnormal burning odor and observed white smoke coming from the exhaust pipe. The contact stated that while stopped at a traffic light, when the light turned green, the accelerator pedal was depressed, and the vehicle stalled. …”

NHTSA complaint #11617824, filed 2024-10, 127,000 miles

“The contact owns a 2015 Ram 1500. The contact stated there was carbon monoxide fumes inside the interior of the vehicle. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the exhaust manifold was cracked with fractured bolts. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 101,000.”

NHTSA complaint #11527067, filed 2023-06, 101,000 miles

“The contact owns a 2015 Ram 1500. The contact stated that while driving 60 MPH, the vehicle lost automotive power with the message Service Electronic Throttle Control displayed, and the “Electronic Throttle Control System Fault” warning light illuminated and remained illuminated. The vehicle was taken to a local dealer, where it was diagnosed, and the contact was advised that the EGR Cooler was faulty and needed to be replaced. The vehicle was not repaired. …”

NHTSA complaint #11690664, filed 2025-09, 109,000 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202562%
202310%
202241%
202141%
2020102%
2019181%
2018467%
2017324%
2016634%
2015634%
2014503%
201381%

Other parts of the 2015 Ram 1500

Steering
342 complaintsEngine
335 complaintsFuel system
239 complaintsTransmission and drivetrain
226 complaintsBrakes
159 complaintsElectrical system
159 complaintsOther or unknown
117 complaintsVehicle speed control
86 complaintsAir bags
61 complaintsSuspension
56 complaintsBody and structure
49 complaintsExterior lighting
26 complaints

← All problems reported for the 2015 Ram 1500

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