2020 RAM 4500 Problems

Typical for Model

Real NHTSA owner complaints for the 2020 RAM 4500.

20192022
Complaints
4
Crashes
0
Fires
0
Injuries
0
Fatalities
Recalls
9

Worst 2020 RAM 4500 Problems

Top 3 most-reported issues with average mileage at failure.

#12 complaints

Visibility

#21 complaints

Diesel Fuel System

#31 complaints

Fuel System

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All Problems by Category

Every NHTSA complaint category for the 2020 RAM 4500.

Visibility
2
complaints
Crashes
Fires
Avg Miles
Diesel Fuel System
1
complaints
Crashes
Fires
Avg Miles
Fuel System
1
complaints
Crashes
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2020 RAM 4500. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2020 RAM 4500

9 NHTSA recall campaigns affecting ~933,498 vehicles.

22V759000Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
~26,961 affected

Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 4500 and 5500 Cab Chassis vehicles. The rear brake hose inside diameter may be too small, which could cause the hose to rupture. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 106, "Brake Hoses."

22V035000Visibility:windshield Wiper/washer:linkages
~171,789 affected

Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 2500 and Ram 3500 vehicles, Ram 3500 Cab Chassis, 4500 Cab Chassis, 5500 Cab Chassis and 3500 Cab Chassis with a gross vehicle weight rating (GVWR) of less than 10,000 lbs. The windshield wiper arms may loosen, possibly causing the wipers to function improperly and reduce the driver's visibility in certain weather conditions.

21V880000Fuel System, Diesel:delivery:fuel Pump
~222,410 affected

Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 2500, 3500 pickup trucks, and Ram 3500, 4500, and 5500 cab chassis vehicles equipped with Cummins 6.7L Turbo Diesel engines. The High Pressure Fuel Pump (HPFP) may fail, resulting in a sudden engine stall without warning.

21V439000Engine And Engine Cooling:engine:oil/lubrication
~32,002 affected

Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 3500, 4500, and 5500 cab chassis vehicles equipped with a Cummins 6.7L High Output engine. The engine calibration software may not warn about low oil volume.

21V398000Wheels:lugs/nuts/bolts/studs
~447,985 affected

Chrysler (FCA US, LLC) is recalling certain 2012-2021 RAM 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. Incorrect information in the Service and Owner's Manuals may cause the flanged lug nuts to be over-tightened, which could result in a broken wheel stud and possible wheel separation.

21V023000Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
~4 affected

Excellance, Inc (Excellance) is recalling certain 2019-2020 Excellance-modified RAM 4500/5500 vehicles to be equipped with CLASS Suspension Systems. In the affected suspension systems, the rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes.

21V016000Brakes · Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings · Suspension:rear
~6 affected

Custom Truck And Body Works is recalling certain 2020 Dodge 4500 and 5500 vehicles. In the affected suspension systems, the rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes.

21V008000Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings
~23 affected

Braun Northwest (Braun Northwest) is recalling certain 2019-2020 RAM 4500/5500 vehicles equipped with Liquid Spring rear suspension systems. In the affected suspension systems, the rear brake caliper flexible line may have been routed so that it contacts a suspension component, possibly causing excessive wear and a loss of rear brakes.

20V511000Engine And Engine Cooling:engine:oil/lubrication · Electrical System:software
~32,318 affected

Chrysler (FCA US LLC) is recalling certain 2019-2020 Ram 3500, 4500 and 5500 cab chassis built with a Cummins 6.7L High Output engine. Inadequate warmup protection can cause a lack of oil film on the engine connecting rod bearings while the engine is reaching operating temperature. This can result in engine damage and connecting rod failure, which could potentially puncture the engine block.

Other RAM 4500 Years

2020 RAM 4500 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2020 RAM 4500 reliable?
Verdict: Typical for Model. The 2020 RAM 4500 has 4 NHTSA complaints, 0 crash-related, and 9 recall campaigns. The most common issue is Visibility with 2 complaints. Source: NHTSA via VinItel.
What are common problems with the 2020 RAM 4500?
Top reported problems: Visibility (2 complaints); Diesel Fuel System (1 complaints); Fuel System (1 complaints). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
Does the 2020 RAM 4500 have any recalls?
Yes — 9 NHTSA recall campaigns affecting an estimated 933,498 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2020 RAM 4500?
Complaint levels are in line with what's expected. Normal used-car due diligence applies — check the specific VIN for accident history, open recalls, and title brands.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full RAM 4500 reliability report with year-by-year comparison and generation analysis.

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