NHTSA Recalls

2020 Peterbilt 520

4 open or recent recalls

4 open recalls

Open recalls

Units affected

Trucks in our DB

Carriers in DB

What this means

4 open or recent NHTSA recalls affect the 2020 Peterbilt 520. 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 4 recalls for this vehicle

NHTSA Campaign

21V720000

0 affected

Issue: PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The quick release valve on the rear brake signal hose may be missing. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Fix: Dealers will inspect the vehicles for a missing quick release valve, and install one if necessary, free of charge. Owner notification letters were mailed on October 7, 2021. Owners may contact PACCAR's customer service at 1-940-591-4220 (Peterbilt). PACCAR's number for this recall is 21PBK.

NHTSA Campaign

20V739000

0 affected

Issue: PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 520 vehicles. The stability control brake relay may have the Spring Brake Modulating (SBM) Valve or the lift axle hose incorrectly connected.

Fix: PACCAR will notify owners, and dealers will inspect the suspect chassis and correct the brake relay plumbing if needed, free of charge. PACCAR has issued owners an interim notification on January 4, 2020. Owner notification letters were mailed on January 25, 2021. Owners may contact Peterbilt cus

NHTSA Campaign

20V429000

0 affected

Issue: PACCAR Incorporated (PACCAR) is recalling certain 2020 Peterbilt 520 vehicles. Incorrect bolts may have been used to secure the steering assist cylinder bracket, possibly allowing the bolts to loosen.

Fix: PACCAR will notify owners, and dealers will install hardware with thread adhesive and replace any components damaged by the improperly secured steer assist bracket, free of charge. The recall began August 17, 2020. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR's number for

NHTSA Campaign

19V911000

0 affected

Issue: PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T800, T880 and W990 and Peterbilt 348, 367, 389, 520, and 567 vehicles. The forward rear axle output shafts may have been improperly heat treated during manufacturing, possibly resulting in the shafts fracturing.

Fix: PACCAR will notify owners, and dealers will inspect and replace the output shafts, as necessary, free of charge. The recall began February 19, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall ar

Frequently Asked Questions

Will an open recall fail a DOT inspection on a 2020 Peterbilt 520?

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/520 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 520 2020 — there may be a documented fix.

Can I keep operating a 2020 Peterbilt 520 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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2020 Peterbilt 520

What this means

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Frequently Asked Questions

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