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Manufacturer recall number

Ford recall 21S31

Ford calls it 21S31. NHTSA filed it as campaign 21V536000 on Jul 15, 2021: power train on the 2020–2021 Ford F-350 Super Duty, 27,604 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
21V5360002020–2021 Ford F-350 Super DutyPower TrainJul 15, 202127,604high
Problem Ford Motor Company (Ford) is recalling certain 2020-2021 F-350 Super Duty pickup trucks equipped with 6.7L diesel engines and Dana model 275 rear axles. The rear axle housing may not support the load of the pickup truck and deform, which could result in driveshaft separation. Risk Driveshaft separation may result in a loss of drive power, or unintended vehicle movement if the vehicle is in park without the parking brake applied, increasing the risk of a crash. Fix Dealers will inspect the axle housing for deformities, and repair or replace the housing, as necessary, free of charge. Owner notification letters were mailed on September 3, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall 21S31.

The manufacturer’s own words as filed for 21V536000. Every model year it covers, the build window and the filed PDFs →

Two numbers, one recall

Every safety recall carries two identifiers. 21S31 is the number Ford assigned in its own system: it is what appears on the owner letter, on the dealer’s service screen and on the repair order. 21V536000 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 21S31 the same recall as 21V536000?

Yes. 21S31 is Ford’s own number for it; 21V536000 is NHTSA’s. One recall, two references.

Which vehicles does 21S31 cover?

2020–2021 Ford F-350 Super Duty, 27,604 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 21S31 repair cost anything?

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