2018 RAM ProMaster Common Problems & Defect Telemetry
Authoritative defect intelligence synthesized from 37 verified NHTSA owner complaints, 10 federal safety recalls, and interquartile failure mileage telemetry.
The 2018 RAM ProMaster receives a 5.7/10 MazicBay Reliability Index based on 37 verified NHTSA federal complaints and 10 safety recalls. The primary reported failure mode is Engine Stalling, Oil Consumption & Cooling Defect Reports with a median failure point at 2,000 miles (IQR: 2,000 – 2,000 mi). Out-of-warranty repairs benchmark at $950 – $3,200 .
5.7 complaints / 10k sold
Verified US federal records
Crash, fire & stall audit
10 Active / Free Remedies
Top Reported Problem Clusters (7)
Engine Stalling, Oil Consumption & Cooling Defect Reports
- Engine sudden stall / hesitation while driving
- Abnormal oil burning / consumption
- Check Engine Light (MIL) flashing
- Engine overheating / coolant loss
“My vehicle is subject to open safety Recall 67C involving the cooling fan module and related fuse protection in the engine compartment. The recall has been open since October 2025. The manufacturer and dealer have confirmed that the remedy/parts are still not available and tha...”
“The contact owns a 2018 Ram Promaster 2500. The contact received notification of NHTSA Campaign Number: 25V720000 (ENGINE AND ENGINE COOLING). The vehicle was started, and there was smoke coming from the exhaust pipe. The contact was unsure if any warning lights were illuminat...”
“Hello, my 2018 Ram Promaster is exhibiting the same symptoms as recall 44A: metal debris in the transmission, which could possibly impact the parking pawl I believe. I have experienced transmission issues for the past 12 months and the Ram dealer in Carson city has identified ...”
Electrical Parasitic Drain, Infotainment & Harness Reports
- Unexplained battery drain after sitting overnight
- Infotainment display / instrument cluster blackouts
- Accessory malfunction / alternator fault warnings
“My vehicle is subject to open safety Recall 67C involving the cooling fan module and related fuse protection in the engine compartment. The recall has been open since October 2025. The manufacturer and dealer have confirmed that the remedy/parts are still not available and tha...”
“The contact owns a 2018 Ram Promaster 2500. The contact stated that while the vehicle was parked, it failed to start. The contact attempted to remove the key from the ignition; however, the key was stuck for several minutes before the contact was able to remove the key. No war...”
“As of approximately around the 15th of April 2023, we realized suddenly that our lithium battery in our 2019 Winnebago Travato was not being replaced with charging from our Volta alternator from driving or from our solar as it has always done. The KISAE DC to DC charger and th...”
Transmission Hesitation, Hard Shifting & Slipping Reports
- Hard gear shifts / delayed engagement into Drive/Reverse
- Transmission shudder / jerking under acceleration
- Transmission slipping between gears
“Hello, my 2018 Ram Promaster is exhibiting the same symptoms as recall 44A: metal debris in the transmission, which could possibly impact the parking pawl I believe. I have experienced transmission issues for the past 12 months and the Ram dealer in Carson city has identified ...”
“I was Driving down the highway at 45-50 mph when the truck suddenly the engine started to rev very high approximately 5000-5500 rpm and the truck lost all Drive gears. I immediately put it in neutral and tried again to put it in drive and nothing happened. I immediately pulled...”
“The contact owns a 2018 Ram Promaster 1500. The contact stated that while driving at an undisclosed speed, the service Hill Holder, Electronic Stability Control and check engine warning lights illuminated. The vehicle was taken to a local dealer where it was diagnosed with cod...”
Service Brakes, ABS Actuator & Master Cylinder Reports
- Spongy or hard brake pedal travel
- ABS / Brake warning light illuminated
- Extended stopping distance / pedal vibration
“The rear parking brake pivot point gets stuck in the on position. After some research, this is VERY common on these vans and is going to cause wrecks or deaths. The pivot point where the parking brake connects to the rear parking brake linkage rusts and gets stuck VERY easily....”
“Service lights for ABS, HILL ASSIST, and ESC on frequently emergency brake and ABS failed locking left rear wheel causing tire to explode. repair parts are not readily available van is currently undriveable.”
“During some cases of downhill driving, the Brake system warning light will come on. I believe this issue is tied to a combination of longer and steeper downhill drives when the angle indicated in road side sinage is no less than 6%. Minimal braking ton control the decent is us...”
Electric Power Steering Assist & Suspension Noise Reports
- Sudden loss of electric power steering assist
- Steering wheel pull or highway wander
- Clunking / knocking noise over bumps
“My power steering locked up and almost caused an accident. The dealer said they are having trouble with this component (corrosion in plug). I have a fleet of trucks, and I just had the same issue with a 2023 model which I also almost lost control of the vehicle. This is a defe...”
“Vehicle is experiencing misfires code P0300 and P0302. Performed the usual repairs listed: 1. Coil pack, 2. Spark Plug, 3. Injector. Inspected cam, rocker arms and lifters. All checked good. Codes still remain. After further inspection, the exhaust valve is cracked/broken on #...”
“-Vehicle shut off on highway, lost power steering Vehicle fan sounds like it's running full speed after turning off engine. Turning key off and pulling out did not shut off engine. Engine appeared to be overheating. Electric system was making lots of clicks and odd noises. Pow...”
Airbag Occupant Detection & Inflator Defect Reports
- SRS Airbag warning lamp illuminated
- Passenger occupant classification sensor failure
- Seat belt retractor lockup
“RV BATTERY DEAD AFTER BEING STORED. USED RV BUSTER FROM THE HOUSE BATTERY AND STARTED THE VEHICLE. THE AIRBAG LIGHT CAME ON, ON THE DASH, AND STAYED ON.”
“IT HAS BEEN OVER SIX MONTHS SINCE THIS RECALL WAS ISSUED, AND FCA HAS NOT PROVIDED ANY INFORMATION OR TIMELINE FOR REPAIR! NOR HAVE THEY FOUND A FIX FOR THE TRANSMISSION PROBLEM RECALL 20V-036! I CANNOT SAFELY DRIVE THIS VEHICLE AND IT IS QUICKLY LOSING VALUE. PLEASE MAKE FCA ...”
Fuel Pump Pressure Loss & Fuel Delivery Defect Reports
- Sudden loss of propulsion power at highway speeds
- Extended engine cranking / failure to restart
- Fuel odor near fuel tank / engine bay
“Vehicle is experiencing misfires code P0300 and P0302. Performed the usual repairs listed: 1. Coil pack, 2. Spark Plug, 3. Injector. Inspected cam, rocker arms and lifters. All checked good. Codes still remain. After further inspection, the exhaust valve is cracked/broken on #...”
Official NHTSA Safety Recalls (10)
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
Summary: Chrysler (FCA US LLC) is recalling certain 2014-2019 Ram ProMaster vehicles equipped 3.6L engines. The transmission shifter cable may separate and disconnect from the transmission, causing the vehicle to not perform shifts intended by the driver and the gear shift lever position not matching the actual transmission gear.
POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT
Summary: Prime-Time Specialty Vehicles (Prime-Time) is recalling certain 2014-2019 Paratransit vehicles equipped with 3.6L engines. The transmission shifter cable may separate and disconnect from the transmission, causing the vehicle to not perform shifts intended by the driver and the gear shift lever position not matching the actual transmission gear.
EQUIPMENT
Summary: Unicell Body Company Inc. (Unicell) is recalling certain 2017-2019 Chevrolet Express and GMC Savanna, 2018-2019 Hino 155, Ford Econoline and Transit and Isuzu NPR, and 2018 Ram ProMaster-based vehicles equipped with ASA Electronics Voyager monitors used to display the back-up camera image. The affected monitors may revert back to the factory default settings which may cause the camera image to be reversed.
EQUIPMENT:APPLIANCE:AIR CONDITIONER
Summary: Chrysler (FCA US LLC) is recalling certain 2015-2018 Ram ProMaster vehicles equipped with 3.0L diesel or 3.6L gasoline engines and air conditioning (A/C). The engine cooling fan may seize which can cause the cooling fan motor to overheat.
SEATS
Summary: New England Wheels (New England) is recalling certain 2014-2018 Ford Transit and 2014-2019 Ram Promaster 2500 and 3500 vehicles modified to be equipped with Freedman Go-ES Foldaway seats. When the back seat cushion is rotated from the stowed position to the upright position, the seat cushion may not remain locked into place when under load, such as in a crash or a sudden stop.
SEATS
Summary: Prime-Time Specialty Vehicles (Prime-Time) is recalling certain 2016-2018 Ram ProMaster and Ford Transit vehicles modified to be equipped with Freedman GO-ES Foldaway Seats. When the seat back cushion is rotated from the stowed position to the upright position, the seat cushion may not remain locked into place when under load, such as in a crash or a sudden stop.
SEATS
Summary: Mobility Transportation Services (MobilityTrans) is recalling certain 2014-2018 Ford Transit and Ram Promaster vehicles and 2014-2015 Ford Econoline vehicles modified to be equipped with Freedman GO-ES Foldaway Seats, part numbers 43705, 45467, 48923, and 75719. When the back seat cushion is rotated from the stowed position to the upright position, the seat cushion may not remain locked into place when under load, such as in a crash or a sudden stop.
AIR BAGS:SIDE/WINDOW
Summary: Chrysler (FCA US LLC) is recalling certain 2018 Ram ProMaster vehicles. An incorrect rivet may have been used to attach the front door impact sensor which can cause the sensor housing to fracture.
ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
Summary: Chrysler (FCA US LLC) is recalling certain 2018 Jeep Renegade, Compass and Grand Cherokee, RAM 1500 and Promaster, Fiat 500x, Dodge Journey, Challenger, Charger and Durango and Chrysler 300x vehicles, 2017-2018 Jeep Wrangler, Dodge Grand Caravan and Chrysler Town and Country vehicles and 2018-2019 Jeep Cherokee and 2018 Chrysler Pacifica and Pacifica Hybrid vehicles. The powertrain control module may be equipped with a voltage regulator chip in the circuit board that may fail, causing a stall or a no start condition.
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
Summary: Chrysler (FCA US, LLC) is recalling certain 2018-2026 Ram ProMaster vehicles. The electrical circuit for the radiator fan may overheat.
Pre-Purchase Inspection Checklist for 2018 RAM ProMaster
Before purchasing a used 2018 RAM ProMaster, perform the following targeted inspections based on reported federal defect patterns:
Scan the OBD-II port under the dash for pending freeze-frame codes (e.g. P0300 misfires, P0087 fuel rail pressure, P0420 catalytic efficiency).
Test vehicle at low-speed stop-and-go and highway merges. Check for delayed reverse engagement or gear shift shudder between 2nd and 3rd gears.
Verify that all 10 NHTSA safety recall campaigns have been performed by an authorized dealership using the VIN.
Ensure the instrument cluster, center screen, and auxiliary charging ports operate with stable 12.0V–14.4V alternator voltage.
Defect & Reliability Q&A: 2018 RAM ProMaster
Is the 2018 RAM ProMaster a reliable used car?
The 2018 RAM ProMaster earns a 5.7/10 MazicBay Reliability Index based on 37 federal owner reports. Vehicles maintained under factory service schedules exhibit strong longevity past 150,000 miles.
What is the most frequent defect reported on the 2018 RAM ProMaster?
The leading complaint category is Engine Stalling, Oil Consumption & Cooling Defect Reports, with a median failure point around 2,000 miles (IQR: 2,000 – 2,000 mi).
Are there free recall repairs available for the 2018 RAM ProMaster?
Yes, the NHTSA records 10 safety recall campaign(s) for this model year. All safety recalls are performed 100% free of charge by authorized franchise dealerships regardless of vehicle warranty status.