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Manufacturer recall number

Ram recall C4B

Ram calls it C4B. NHTSA filed it as campaign 24V896000 on Nov 27, 2024: service brakes, hydraulic on the 2017–2018 Ram 2500 and 1 other Ram model, 317,630 vehicles potentially affected. One recall, two numbers — the dealer quotes the manufacturer’s, the federal record carries NHTSA’s.

What NHTSA has under this number

Source: 49 CFR Part 573 filings
NHTSA campaignVehiclesComponentFiledAffectedSeverity
24V8960002017–2018 Ram 2500 and 1 other Ram modelService Brakes, HydraulicNov 27, 2024317,630high
Problem Chrysler (FCA US, LLC) is recalling certain 2017-2018 Ram 2500 Pickup, Ram 3500 Pickup, 3500 Cab Chassis, 4500 and 5500 Cab Chassis vehicles. The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail. Risk A loss of anti-lock brakes, electronic stability control, or traction control can increase the risk of a crash. Fix Dealers will replace the brake HCU, or replace the HCU motor, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed January 9, 2025. Some owner notification letters were mailed January 9, 2025. The remaining owner notification letters will be mailed at a future date, anticipated October 2026. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is C4B.

The manufacturer’s own words as filed for 24V896000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. C4B is the number Ram assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 24V896000 is the number NHTSA filed the same recall under when the manufacturer reported it, and it is the one every federal record, this site included, is keyed on.

The repair is free by federal law for vehicles up to fifteen years old. Whether one particular vehicle is included is settled by its VIN against the manufacturer’s build list, not by its model year.

Check one specific vehicle

Both lookups check a VIN against the manufacturer’s own list and say whether the repair is still outstanding on that vehicle.

Common questions

Source: NHTSA, 49 CFR Part 573

Is C4B the same recall as 24V896000?

Yes. C4B is Ram’s own number for it; 24V896000 is NHTSA’s. One recall, two references.

Which vehicles does C4B cover?

2017–2018 Ram 2500 and 1 other Ram model, 317,630 vehicles by the manufacturer’s count. A recall covers a build range, so the VIN decides whether one particular vehicle is in it.

Does the C4B repair cost anything?

No. The manufacturer must remedy a safety defect at no charge for vehicles up to 15 years old from first sale.