2015 Ram Promaster: check engine light

Filed Mar 12, 2026 · Transmission · 108,000 miles · NJ

The contact owns a 2015 Ram Promaster 2500. The contact stated that, while driving at an undisclosed speed, the check engine warning light illuminated, indicating a torque converter failure. The vehicle was taken to an independent mechanic, where the torque converter was replaced. The failure recurred and was repaired an additional two times. During the final repair, the mechanic determined that fluid was leaking from the radiator into the transmission. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 108,000.

Filed Feb 4, 2026 · Engine · 150,000 miles · NY

The contact's boyfriend owns a 2015 Ram Promaster 2500. The contact stated that while her boyfriend was driving at an undisclosed speed, the check engine warning light illuminated. The driver continued driving, and the vehicle entered LIMP Mode and failed to accelerate above 5 MPH. The vehicle was taken to a dealer where it was serviced under an unknown recall; however, soon after the vehicle was repaired, the failure returned. The vehicle was taken back to the dealer and serviced a second time under the same recall. Recently, the contact stated the failure returned, and the vehicle was taken back to the dealer. The vehicle remained with the dealer for several months before the contact was informed that the vehicle could not be serviced. The contact was advised to retrieve the vehicle. The manufacturer was notified of the failure, and the contact was provided with the same information as the dealer. The vehicle was not repaired. The failure mileage was approximately 150,000.

Filed Dec 19, 2025 · Brakes, Fuel system · 60,000 miles · MI

The contact owns a 2015 Ram ProMaster 2500. The contact stated that the same day that the vehicle was purchased, the check engine warning light illuminated. The contact stated that after shifting to park(P) and the parking brake was engaged, the vehicle rolled backwards. The vehicle was taken to the dealer, who diagnosed the vehicle with an unknown sensor failure. The sensor and the brakes were repaired. The contact retrieved the vehicle, and the check engine warning light was illuminated. When the gear lever was shifted to park(P) and the parking brake was engaged, the vehicle rolled backwards. The dealer was contacted, and the dealer at first refused to take the vehicle. After several months, the dealer took the vehicle, and it was diagnosed and determined that the fuel injectors, brakes, fuel tank, and an unknown sensor needed to be replaced. The vehicle was not repaired due to the cost. The contact stated that the failure persisted. The vehicle was parked at the residence and had not been driven since. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

Filed Mar 19, 2019 · Acceleration · FL

We own a 2015 ram promasters. While driving on the freeway at various speeds. Tech experienced a sudden loss of power. On the dash appeared a yellow check engine light and a red symbol ( ! ). A message read "service required - transmission service". As the tech attempted to exit the freeway, afraid that the van might stall with incoming traffic. He made a safe exit off the freeway. Pulled over, turned off ignition and was able to restart the car in hopes that the trouble would clear. The red symbol ( ! ) disappeared and power was restored. Was able to drive back to company

Filed Aug 20, 2016 · Fuel system · 10,000 miles · TX

Electronic throttle control and malfunction indicator light came on sporadically during a 2,000 mile trip over a 2 week period. Caused vehicle automatic shifting to jump from gear to gear and speed and engine RPM to not respond to foot pedal while driving. Dealer flushed fuel system stating problem was biodiesel in tank. Owners manual says biodiesel can be used.