NHTSA Recalls

2021 Peterbilt 579

2 open or recent recalls

2 open recalls

Open recalls

Units affected

Trucks in our DB

Carriers in DB

What this means

2 open or recent NHTSA recalls affect the 2021 Peterbilt 579. Recall repairs are free at OEM dealers — but only if you take the truck in. If you operate this model, verify recall service status by submitting the VIN at the OEM dealer or via NHTSA.gov. Insurance underwriters and freight brokers increasingly ask carriers to confirm recall service is current before contract loads.

All 2 recalls for this vehicle

NHTSA Campaign

23V423000

0 affected

Issue: PACCAR, Incorporated (PACCAR) is recalling certain 2021-2023 Peterbilt 579 vehicles equipped with MX-13 engines and 160-amp alternators. A fastener on the front spring bracket may have been installed with the head on the outside of the frame rail, which can chafe and damage the alternator positive cable.

Fix: Dealers will replace the frame fastener and secure the alternator cable, free of charge. Owner notification letters are expected to be mailed August 11, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 23PBD.

NHTSA Campaign

21V328000

0 affected

Issue: PACCAR Incorporated (PACCAR) is recalling certain 2021 Peterbilt 348 and 579 vehicles. The spring brake chamber may have been assembled with incorrect springs that were out of specification, which may cause the pressure plate to shift.

Fix: Dealers will replace brake chambers, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact PACCAR (Peterbilt) customer service at 1-940-591-4220. PACCAR's number for this recall is 21PBE.

Frequently Asked Questions

Will an open recall fail a DOT inspection on a 2021 Peterbilt 579?

An open recall does NOT automatically fail a Level 1, 2, or 3 DOT roadside inspection — those focus on brake, tire, light, HOS, and driver-fitness items. However, if the recall affects a safety-critical component that is showing visible defect (cracked brake line, leaking fuel line, etc.) and the inspector identifies the defect itself, it can result in an out-of-service violation. Best practice: complete recall service promptly to avoid the question entirely. Recall completion is free at the dealer.

How do I check if my specific VIN has open recalls?

Three ways: (1) Enter your VIN at NHTSA.gov/recalls — free, instant. (2) Call any Peterbilt dealer and provide your VIN — they'll look up open campaigns. (3) Use our VIN decoder tool at /vin/ which cross-references against our recall database. The fastest is the NHTSA site; the most useful for fleet operators is the dealer call (they can also schedule the repair on the spot).

Who pays for recall repairs?

The manufacturer pays. Recall service is free at any authorized OEM dealer regardless of the truck's age, mileage, or who owns it now. The exception: if recall service is more than 10 years old, some manufacturers can decline (rare on commercial trucks). Peterbilt/579 recall service typically takes 1–4 hours of dealer shop time depending on the campaign — usually no charge for parts or labor.

What's the difference between a recall and a TSB on a Peterbilt?

A recall (NHTSA campaign) is a manufacturer-mandated safety repair — free and required. A TSB (Technical Service Bulletin) is the manufacturer telling dealers about a known issue and the recommended fix, but TSB repairs are typically NOT free — owners pay parts and labor. Recalls fix safety risks; TSBs fix quality/reliability issues that aren't safety-related. If you're seeing a problem that ISN'T on the recall list, search TSBs for Peterbilt 579 2021 — there may be a documented fix.

Can I keep operating a 2021 Peterbilt 579 with an open recall?

Legally yes (no federal law prohibits operating a vehicle with open recalls on a commercial truck — only some passenger-vehicle resale rules apply). Practically: depends on the specific recall. Safety-critical recalls (brakes, steering, fuel system) should be addressed immediately — both for safety and because insurance carriers and shippers increasingly track this. Less-critical recalls (lighting, infotainment) can wait until your next dealer visit. Always review the specific recall summary to understand severity.

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2021 Peterbilt 579

What this means

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Frequently Asked Questions

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