CarRecallWatchThe 2020 RAM 4500 has 9 safety recalls on file with NHTSA.
Owners have filed 4 complaints with NHTSA.
The most-reported problem area is Visibility (2 reports).
2020 RAM 4500 recalls
Rear Brake Hose May Rupture, Causing Loss of Braking
The inside diameter of the rear brake hoses on these trucks may be too small.
Loose Wiper Arms Can Reduce Driver Visibility
Certain 2019-2020 heavy-duty pickups and cab chassis trucks may have windshield wiper arms that loosen over time.
Fuel pump can fail and stall engine without warning
The high pressure fuel pump in certain diesel trucks with Cummins 6.7L engines may fail, causing the engine to stall suddenly and without warning.
Engine May Not Warn of Low Oil, Risking Fire
Certain 2019-2020 Ram 3500, 4500, and 5500 cab chassis trucks with the Cummins 6.7L High Output engine have engine calibration software that may fail to warn the driver when oil volume is low.
Wrong lug nut torque spec can break wheel studs
Some RAM 3500, 4500, and 5500 trucks and cab chassis were built with incorrect torque information in the Service and Owner's Manuals.
Rear brake line can wear through, causing brake loss
Certain 2019 and 2020 RAM 4500 and 5500 trucks that were modified by Excellance, Inc.
Rear brake hose can wear through, causing brake loss
A rear brake caliper flexible line on certain vehicles may have been routed so that it rubs against a suspension component.
Rear brake line can wear through and cause brake loss
On certain vehicles with Liquid Spring rear suspension, the rear brake caliper flexible line may be routed so that it contacts a suspension component.
Engine May Lose Oil Film and Fail, Risking Fire
Certain 2019 and 2020 Ram 3500, 4500 and 5500 cab chassis vehicles with the Cummins 6.7L High Output engine may not have adequate warm-up protection.
Most common 2020 RAM 4500 problems
Problem areas named in the 4 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Visibility | 2 |
| Fuel/Propulsion System | 1 |
| Fuel System, Diesel | 1 |
| Unknown Or Other | 1 |
What owners report
We purchased this vehicle as a cab and chassis and took it to a professional outfitter to have a service Knapheide box added. The box was equipped with incorporated locks. We had an issue with a check engine light and took the vehicle to the dealership since it was still with in warranty. The dealer scanned the truck and stated that there is a P1400 code showing illegal tuning and would void the warranty. Come to find out this code was due to the outfitter installing the box and flashing the computer for the locks. This should not be an issue that voids a warranty when a professional outfitter installs the box directly from the dealer.
The contact owns a 2020 Ram 4500. The contact stated that while driving approximately 65 MPH during a rainstorm, the windshield wipers were activated; however, the windshield wipers failed to engage as needed. The contact attempted to activate the windshield wipers several times, but the windshield wipers stopped operating. The contact pulled over and waited out the rainstorm. The rain had not stopped, and the contact drove to a filling station, checked the electrical fuse for the windshield wipers, and then replaced the fuse. The contact stated that the wipers started to function, but only at the highest speed. The contact attempted to slow the windshield wipers, but when the wiper speed co
The contact owns a 2020 Ram 4500. The contact received notification of NHTSA Campaign Number: 21V880000 (Fuel System, Diesel) and 22V035000 (Visibility) however, the parts to do the recall repairs were not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Truck turned off while driving and died. Would not turn back on. Was towing a 40ft gooseneck trailer with a load on it. Truck was stopped blocking multiple lanes of traffic. Truck and trailer had to be towed to nearest dealership where they found the CP4 fuel pump had failed and the entire fuel system needed to be replaced.
2020 RAM 4500 questions
Does the 2020 RAM 4500 have any recalls?
Yes. NHTSA lists 9 safety recalls for the 2020 RAM 4500: Rear Brake Hose May Rupture, Causing Loss of Braking; Loose Wiper Arms Can Reduce Driver Visibility; Fuel pump can fail and stall engine without warning; Engine May Not Warn of Low Oil, Risking Fire; Wrong lug nut torque spec can break wheel studs. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2020 RAM 4500?
Based on 4 owner complaints filed with NHTSA, the most-reported problem areas are Visibility (2), Fuel/Propulsion System (1), Fuel System, Diesel (1).
How do I check if a recall on my 2020 RAM 4500 has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.