KENWORTH 2023: SERVICE BRAKES, AIR

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing …

Recall #: 23V661000

Compiled from official public sources by the publisher. · Updated September 2026

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Kenworth recalled PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-202….

KENWORTH 2023: SERVICE BRAKES, AIR was recalled by Kenworth in September 29, 2023. Reason: PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536…. Remedy: Dealers will replace the fittings and hoses in the affected valves, free of charge. Owne…. Verify recall #23V661000 with the NHTSA before acting.

The recall

Kenworth issued this NHTSA recall-PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536….

None
agency class: September 29, 2023
reported

Sourced from official NHTSA enforcement records. Verify recall #23V661000 with the agency before acting. Full product description, hazard, remedy, and related recalls are below.

Recall Insight

The number of affected units is not disclosed in the agency filing, which is common for drug and food recalls where lot-level tracking supersedes unit counts. Distribution scope (see Distribution below) directly affects the consumer exposure window and determines whether a recall remains regional or escalates into a nationwide advisory. Consumers holding this product should act on the agency's documented remedy above rather than relying on general guidance.

Within the same product category the archive holds 6 closely related recalls, 3 from NHTSA - clustering in a narrow category often points to a systemic quality-control or supplier issue rather than a one-off defect. Always verify the recall number against the official agency record before acting.

Product description

PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Kenworth T280, T380, 2020-2024 Peterbilt 548, 536, 2024 Peterbilt 537, and 2020-2024 Kenworth T480 trucks. The timing of the trailer brake release may be delayed. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Reason for recall

Hazard

A delay in the trailer brake release can create instability to the trailer and increase the risk of a crash.

Remedy, what to do

Dealers will replace the fittings and hoses in the affected valves, free of charge. Owner letters were mailed January 15, 2024. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 23KWJ and 23PBJ.

Recall Profile

Structured summary of the NHTSA recall record
Attribute	Value
Agency	National Highway Traffic Safety Administration
Severity class	Not classified by agency
Status	Active
Recall number	23V661000
Date reported	September 29, 2023
Date initiated	September 29, 2023
Recalling firm	Kenworth
Affected scope	Not disclosed
Distribution	United States
Official source	NHTSA notice →

Profile values are sourced directly from the official NHTSA enforcement record. Source: National Highway Traffic Safety Administration.

What to do with this recall

Dealers will replace the fittings and hoses in the affected valves, free of charge. Owner letters were mailed January 15, 2024. …

Check the recall number (23V661000) and product description against the item you own. Search the archive
Confirm the current status and remedy on the official NHTSA notice before acting. NHTSA notice
Follow the documented remedy (refund, replacement, repair, or disposal) rather than general advice. What to do next

This page summarizes the official NHTSA record for research and awareness; it is not legal, medical, or safety advice. Verify with the issuing agency before acting.

Frequently Asked Questions

What product was recalled? ▼

Why was this product recalled? ▼

What should consumers do? ▼

Which agency issued this recall? ▼

This recall was issued by the NHTSA on September 29, 2023. NHTSA does not publish a hazard classification for this recall. Recall number: 23V661000.

Where was the recalled product distributed? ▼

Distribution: United States.

How do I report an injury from a recalled product? ▼

Report injuries to the issuing agency: CPSC at SaferProducts.gov, NHTSA at nhtsa.gov/report-a-safety-problem, or FDA via MedWatch. Document the product (photos, model/serial numbers, purchase receipts) and seek medical attention. Injury reports help agencies track hazard patterns and may strengthen enforcement actions.

Nationwide recalls with similar severity or category timing

Vehicle and equipment notices outside this manufacturer and filing state, matched by archive severity grade and report timing.

Similar severity · nearest report date

Same archive severity grade, closest by report date among other firms and states.

RAM 2022-2024: BACK OVER PREVENTION:DISPL… 2023-09-28 NISSAN 2023: ELECTRICAL SYSTEM:PROPULSION… 2023-09-28 PETERBILT 2021-2024: FUEL SYSTEM, DIESEL:… 2023-09-27 SANDIMMUNE Oral Solution (cyclosporine or… 2023-09-27

Similar Vehicles · nearest report date

Same product category, closest by report date among other firms and states (deduped against the severity set).

Trek Recalls Allant+ 7 Bicycles Due to Cr… 2023-09-28 KIA 2010-2017: SERVICE BRAKES, HYDRAULIC:… 2023-09-25 VOLKSWAGEN 2019: AIR BAGS:SIDE/WINDOW:CUR… 2023-10-04 FORD 2020-2022: POWER TRAIN:DRIVELINE:DRI… 2023-10-06

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This recall: NHTSA, reported September 29, 2023. Severity classes follow each agency's own taxonomy; related-recall context is computed across the full archive.

Methodology · Corrections · Archive as of August 2026