2023 Peterbilt 520

Routine

No owner complaints are on file for this vehicle. It has been recalled 5 times.

5 safety recalls

Part 573 reports
Electrical System › Propulsion System25V181000
Filed Mar 24, 2025238 vehiclesPaccar Incorporated

Defect. PACCAR Incorporated (PACCAR) is recalling certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 trucks. The high voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive power.

Risk. A loss of drive power increases the risk of a crash.

Remedy. Dealers will update the software and replace the electrical harness, free of charge. Owner notification letters were mailed May 13, 2025. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's numbers for this recall are 25PBC and 25KWC.

Electrical System › Software24V915000
Filed Dec 9, 2024220,764 vehiclesPaccar Incorporated

Defect. PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.

Risk. Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.

Remedy. Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. 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 24KWL and 24PBL.

Suspension › Multiple Axle22V939000
Filed Dec 16, 202215,658 vehiclesPaccar Incorporated

Defect. PACCAR Incorporated (PACCAR) is recalling certain 2015-2023 Peterbilt 320 and 520 refuse trucks equipped with Haulmaax/EX suspensions. The suspension tracking rod brackets may fail and detach from the forward drive axle, causing the axle to become unstable.

Risk. An unstable axle can decrease vehicle stability and control, increasing the risk of a crash.

Remedy. Dealers will inspect the welds and add an additional bracket between the tracking rod bracket and axle housing, as necessary, free of charge. Owner notification letters are expected to be mailed February 14, 2023. Owners may contact Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 22PBL.

Engine and Engine Cooling › Engine › Engine Control Module (ecu/Ecm)22V631000
Filed Aug 17, 20221,601 vehiclesPaccar Incorporated

Defect. PACCAR Incorporated (PACCAR) is recalling certain 2023 Peterbilt 220, 389, 520, 536, 537, 348, 367, 567, 548, 579, and 2023 Kenworth T680, K270, T440, T880, W990, K370, T280, T380, T480, T800, and W900 vehicles. The engine control module (ECM) may experience an internal electrical short-circuit, causing the engine to stall.

Risk. An unexpected engine stall can increase the risk of a crash.

Remedy. Dealers will replace the ECM, free of charge. Owner notification letters are expected to be mailed October 16, 2022. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's number for this recall is 22KWG and 22PBG.

Steering22V547000
Filed Jul 28, 202247,500 vehiclesPaccar Incorporated

Defect. PACCAR Incorporated (PACCAR) is recalling certain 2022-2023 Kenworth T170, T270, T280, T370, T380, T440, T470, T480, T680, T800, T880, W900, W990, C500, and 2022-2023 Peterbilt 325, 330, 337, 348, 365, 367, 389, 520, 536, 537, 548, 567, and 579 vehicles. The steering gears may have been assembled incorrectly, which can cause the gears to fracture.

Risk. A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Remedy. Dealers will inspect the steering gear serial numbers, and replace the steering gears as necessary, free of charge. Owner notification letters were mailed September 26, 2022. 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 22PBE and 22KWE.

Across model years

Worst on record: 2020
YearComplaintsRecallsFiresDeathsAssessment
20260200Routine
20250700Do not drive
20240800Routine
2023 — this page0500Routine
20220400Routine
20210600Routine
202031200Routine
20191800Routine
20180800Routine
20170500Routine
20160400Routine
20150300Routine
20140100Routine
20130100Routine
20120100Routine
20110100Routine
20100100Routine
20090100Routine
20080100Routine
20070100Routine
20060100Routine
20050100Routine
20040100Routine
20030100Routine
20020100Routine
20010100Routine
20000100Routine
19990100Routine
19980100Routine
19970100Routine
19960100Routine
19950100Routine
19940100Routine
19930100Routine
19920100Routine
19910100Routine
19900100Routine

Compare every 520 year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: Mar 24, 2025. Source: NHTSA Office of Defects Investigation.