2018 RAM 2500 fuel/propulsion system problems
This is a safety-related system. If you notice symptoms, stop driving and have it inspected.
What owners report
“I haven’t had an accident yet, but the car beeps at me constantly. It’s very distracting. Abs / traction control lights constantly going on and off. Also had issues with transmission, gears shifting hard, 4wd bushings in transfer case, etc. I have asked for an update on recalls many times. No part available. It’s been almost 2 years. Doesn’t seem that they plan to address the issue.”
NHTSA complaint · filed 09/27/2026
“The vehicle has experienced repeated failures of the variable geometry turbocharger (VGT) electronic actuator. The actuator intermittently fails to move the turbo vanes to their commanded position, resulting in fault codes related to turbocharger performance and actuator position. The failed actuator is currently installed on the vehicle and is available for inspection upon request. This failure creates a significant safety concern because the engine can suddenly lose turbocharger performance a…”
NHTSA complaint · filed 07/10/2026
“Truck def system error derates vehicle speed to 5mph in 85 miles. This is unacceptable as no dealerships are open on weekends or in the middle of nowhere. This EPA rule will get folks killed as folks driving 5mph on freeway towing a big trailer will get run into real quick. Vehicle should NOT cause you to slow to 5mph if a pollution control device has issues. Please investigate.”
NHTSA complaint · filed 01/30/2026
“I am reporting ongoing safety concerns with my 2018 RAM 2500 (6.7L Cummins) related to repeated emissions/aftertreatment failures and the lack of timely repair options. These failures directly affect drivability and can create hazardous situations if the vehicle enters derate mode while towing or driving at highway speeds. Over the past year, my truck has suffered multiple emissions-related component failures, including DEF dosing issues, SCR/DPF system faults, repeated warning messages, and th…”
NHTSA complaint · filed 12/11/2025
“Reverse camera started to act up causing my camera to not be available while I am in reverse, this has also coincided with an error message stating "Service Electronic Throttle Control". My truck has experienced slow acceleration and the maximum speed is only 60 mph. My stability control warning light is also on with the flashing "lightning bolt" and I can no longer use my cruise control. The audible crash prevention warning when I reverse also no longer works.”
NHTSA complaint · filed 03/17/2025
“There is a chronic problem with most Ram trucks, this issue isn't just related to one model of Ram trucks. The problem is when you go to fill-up your tank with gas, the fill neck continues to back up, which requires skill & a lot of patients just to fill your tank. And, this is also a major safety concern due to the high likely hood of an overflow of fuel & possible fire & explosion situation. After much research & being a professional aircraft mechanic, what I found to be the problem in most al…”
NHTSA complaint · filed 02/16/2025
“when hauling my 20' enclosed trailer with a 10k lbs load my 2018 ram 2500 turbo actuator went out. my exhaust brake is inoperable due to the turbo actuator not functioning properly. the truck does not build boost as it should. there is a service bulletin for 2015 ram 2500 with 6,7 cummins in them. bulletin number [XXX]. this bulletin covers the exact part that went out on my truck while hauling. the part numbers from 2015 to 2018 model years did not change. i have attempted to reach out to ram a…”
NHTSA complaint · filed 02/28/2024
“LOSS OF THROTTLE FROM DEAD STOP AND WHILE AT VARYING SPEEDS, VEHICLE IS NOT THROWING ANY CODES. DEALER IS STUMPED AND HAS SENT ME AWAY IN A TRUCK THAT COULD CAUSE A SERIOUS ACCIDENT. IVE FILED A COMPLAINT WITH RAM TRUCKS/CHRYSLER FIAT BUT NOT GETTING MUCH TRACTION.”
NHTSA complaint · filed 03/05/2020
Unverified owner reports from NHTSA's public complaint database.
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- How common are 2018 RAM 2500 fuel/propulsion system problems?
- 11 owners reported fuel/propulsion system issues to NHTSA for the 2018 RAM 2500. Counts scale with how many were sold.
- Is there a recall for 2018 RAM 2500 fuel/propulsion system problems?
- No matching recall is on file. Check your VIN at nhtsa.gov/recalls for the latest.