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NHTSA campaign 24V044000 · manufacturer recall 24PBC and 24KWC

2024–2025 Kenworth and Peterbilt: steering recall

A loss of steering control increases the risk of a crash.

high 45,887 vehicles affected 85% reported repaired

What was reported

Source: manufacturer filing, 49 CFR Part 573
Problem PACCAR Incorporated (PACCAR) is recalling certain 2024-2025 Kenworth T280, T380, T480, T680, T880, L770, W990, and 2024-2025 Peterbilt 389, 520, 535, 536, 537, 548, 567, 579, 589 trucks. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control. Risk A loss of steering control increases the risk of a crash. Fix Dealers will inspect and replace the steering gears as necessary, free of charge. Owner notification letters were mailed March 20, 2024. Owners may contact Peterbilt customer service at 1-940-591-4220 and/or Kenworth customer service at 1-425-828-5888. PACCAR's numbers for this recall are 24PBC and 24KWC.

Reported to NHTSA Jan 25, 2024 by PACCAR Incorporated, owners notified Mar 20, 2024.

Which vehicles are covered

Source: NHTSA campaign 24V044000
Model yearOn WhichTrim
2024 Kenworth L770
2025 Kenworth L770
2024 Kenworth T280
2025 Kenworth T280
2024 Kenworth T380
2025 Kenworth T380
2024 Kenworth T480
2025 Kenworth T480
2024 Kenworth T680
2025 Kenworth T680
2024 Kenworth T880
2025 Kenworth T880
2024 Kenworth W990
2025 Kenworth W990
2024 Peterbilt 389
2025 Peterbilt 389
2024 Peterbilt 520
2025 Peterbilt 520
2024 Peterbilt 535
2025 Peterbilt 535
2024 Peterbilt 536
2025 Peterbilt 536
2024 Peterbilt 537
2025 Peterbilt 537
2024 Peterbilt 548
2025 Peterbilt 548
2024 Peterbilt 567
2025 Peterbilt 567
2024 Peterbilt 579
2025 Peterbilt 579
2024 Peterbilt 589
2025 Peterbilt 589

None of the vehicles this campaign names has a page on WhichTrim: the catalogue covers the cars, trucks and SUVs the EPA certifies from 2016 on, and these vehicles fall outside it — older model years, or motorhomes, trailers, buses, motorcycles and chassis cabs the EPA does not rate. The campaign record above is complete as filed, and whether one specific vehicle is included is settled by its VIN. Other campaigns on vehicles without a page here →

How much of it has been fixed

Source: manufacturer quarterly report, 49 CFR 573.7
Reported repaired 85%

of the campaign

The final figure: the six quarters of reporting that 49 cfr 573.7 requires have closed.

This is the manufacturer's own cumulative count of vehicles it has inspected and repaired, divided by the vehicles the campaign covers. It files that count with NHTSA every quarter for six consecutive quarters, starting from the quarter in which owners were told a remedy was ready, and then the obligation ends — so a figure on an older campaign is where the count stopped, not where it stands today.

It rarely reaches 100%, and not because the work was not done. The same report asks manufacturers to count vehicles they could not reach at all — exported, stolen, scrapped, or simply never located — and those stay in the denominator. A low number means a lot of these vehicles are still out there unrepaired; it does not tell you which ones.

The federal paperwork

Source: nhtsa.gov

Filed documents

NHTSA has not published the scanned filings for this campaign, or has not published them yet. The campaign record itself is on their site.

Check one specific vehicle

A recall applies to a build range, so year, make and model cannot settle it. NHTSA checks a VIN against the manufacturer's own list and tells you whether the repair is still outstanding on that vehicle.

NHTSA VIN recall lookup →

Campaign 24V044000 · the manufacturer calls it 24PBC and 24KWC

Own one, or run a fleet? Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, this one's expansions included. Or take a free one-line alert by model year.

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Common questions

Source: NHTSA, 49 CFR Part 573

Is 24PBC and 24KWC the same recall as 24V044000?

Yes. 24PBC and 24KWC is the number PACCAR Incorporated uses for this campaign in its own paperwork and in the letter it sends owners. 24V044000 is the number NHTSA files it under. One recall, two references — dealers and service departments generally quote the manufacturer's.

Does this recall repair cost anything?

No. Federal law requires the manufacturer to remedy a safety defect or a compliance failure at no charge, for vehicles up to 15 years old measured from the date of first sale. A dealer that asks you to pay for a recall repair is in the wrong.

How do I know whether my vehicle is included?

By VIN, not by model year. The manufacturer files a build range with NHTSA and only vehicles inside it are covered, so two identical-looking cars from the same year can differ. NHTSA's own lookup checks a VIN against the manufacturer's list.

What if the repair is not available yet?

It happens, and often. Manufacturers must notify owners when a defect is found even if the parts or the software are not ready, then notify them a second time once the remedy exists. The remedy filed for this campaign is described above.

What did the manufacturer say was wrong?

The problem, risk and fix quoted on this page are the manufacturer's own words as filed with NHTSA under 49 CFR Part 573. WhichTrim does not paraphrase them.

Who started this recall?

NHTSA's record credits the manufacturer. A recall can begin with the manufacturer's own testing, with a defect investigation, or with a compliance test against a Federal Motor Vehicle Safety Standard.