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Service bulletin SSM 50000

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10200985
Published by NHTSA2021-09-04
Manufacturer's numberSSM 50000
Manufacturer's date2021-08-04
NHTSA componentWHEELS; SERVICE BRAKES

NHTSA's summary

Some 2020-2021 F-53 Motorhome Chassis/F-59 Commercial Stripped Chassis vehicles may exhibit an anti-lock brake system (ABS) light on with diagnostic trouble code (DTC) C0037 and/or C0038. This may be due to a bent or damaged rear axle tone ring. Inspect the tone ring teeth on the affected rear wheel and replace the tone ring if damage is present. It is recommended to inspect the service tone ring before installation to make sure no damage has occurred in shipment. The tone ring is susceptible to damage during the ring to rotor installation as well as installing the hub and rotor assembly onto the axle housing. Use a suitable jack to aid in the installation of the assembly to prevent any contact with the tone ring during reassembly.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Wheels

Trouble codes named

C0037, C0038

Vehicles listed
FORD F-532020 to 2021

Listing a model year does not mean every vehicle of it is concerned: the document says which.