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Ram 4500 and 5500 Brake Hose Corrosion

NHTSA campaign 18V277000 · Reported May 1, 2018 · Chrysler (FCA US LLC)

high How serious is it? About this label

A brake fluid leak caused by corroded fittings can lead to a loss of braking, which increases the risk of a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number	18V277000
Reported to NHTSA	May 1, 2018
Manufacturer	Chrysler (FCA US LLC)
Part affected	Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
Vehicles covered	2 model/year combinations, model years 2018
Do-not-drive advisory	No
Park-outside advisory	No
Repair	Free at any franchised dealer

What's wrong, in plain English

Chrysler is recalling certain 2018 Ram 4500 and 5500 cab chassis trucks because two brake hoses, located between the brake master cylinder and the hydraulic control unit, may have been built without a protective coating on their metal fittings. Without this coating, the fittings can corrode over time. If that happens, brake fluid can leak out of the hoses, which can affect the truck's ability to brake normally.

What you should do

1. Check your VIN at nhtsa.gov/recalls to confirm your truck is affected.
2. Contact Chrysler customer service at 1-800-853-1403 or your dealer to have the brake hoses inspected.
3. If replacement is needed, the repair is free of charge.

Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 18V277000. More in how recalls work.

Affected vehicles (2)

2018 RAM 4500
2018 RAM 5500

Who to contact

RAM — official RAM recall lookup

Customer service: 1-800-853-1403

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

RAM Brake Recalls Cover Pedal Separation, Hose Damage and Controls · all 11 RAM recalls in this area

Other RAM 5500 recalls

Apr 9, 2026Ram Trucks Instrument Panel Display Failurehigh
Feb 2, 2026Jeep And Ram Trailer Tow Module Failurehigh
Dec 18, 2025Ram 3500, 5500 trucks: airbag and stability flawcritical
Dec 1, 2025Ram 3500, 5500 Instrument Cluster Display Failurehigh
Nov 6, 2025Ram Trucks: Driver's Air Bag May Not Deployhigh
Nov 27, 2024Ram Trucks Brake Control Unit May Failhigh

All 27 5500 recalls

Official notice

Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Summary: Chrysler (FCA US LLC) is recalling certain 2018 RAM 4500 and 5500 cab chassis trucks. The primary and secondary brake hoses located between the brake master cylinder and the hydraulic control unit may have been manufactured without anti-corrosion plating on the ferrules, which can allow the ferrules to corrode.
Safety risk: If the ferrules corrode, the brake fluid may leak and cause a loss of braking, increasing the risk of a crash.
Remedy: Chrysler will notify owners, and dealers will inspect the brake hoses and replace them if necessary, free of charge. The recall began June 19, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U41.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.