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NHTSA recall 21V293000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

Campaign
Published byNHTSA (United States)
Campaign number21V293000
Manufacturer's numberSC0424
ManufacturerMack Trucks, Inc.
Reported2021-04-26
Owners notified2021-05-12
ComponentSTEERING
Units potentially affected272
Part numbers84726804
Remedy progress the manufacturer reported
ReportAnnual report 3, for 2025 quarter 2 to 2026 quarter 1
Filed with NHTSA2026-04-15
Vehicles in the campaign272
Reported remedied223 (81%)
Reported unreachable0
Reported removed0

These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 1, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.

What is wrong

Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil.

What can happen

The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash.

The remedy

Dealers will replace the transfer case, free of charge. Owner notifications letters were mailed on May 12, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0424.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Vehicles this campaign lists
2019 MACK LR
2020 MACK LR

A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.

Bulletins for the same vehicles and component

Bulletins for the same vehicles and component
CBR 2515-1 1020252025-11-03. Service bulletin. CBR - Hard Steering Due to Steering Column Miter Box Corrosion – Inspection and Replacement Procedure
S76432022-05-05. Service bulletin. Steering Shaft at Miter Box, Inspection
S75802021-05-04. Service bulletin. V Stay Apex Housing Premature Failure

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

Check one vehicle officially