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2023 PETERBILT 520

5 recalls, 0 complaints - 14 TSBs

25V181000 Mar 24, 2025
ELECTRICAL SYSTEM:PROPULSION SYSTEM
Defect Description
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.
Consequence
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... Read more
238 vehicles affected
Manufacturer: PACCAR Incorporated
24V915000 Dec 9, 2024
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Defect Description
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... Read more
Consequence
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.
220,764 vehicles affected
Manufacturer: PACCAR Incorporated
22V939000 Dec 16, 2022
SUSPENSION:MULTIPLE AXLE
Defect Description
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.
Consequence
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 ... Read more
15,658 vehicles affected
Manufacturer: PACCAR Incorporated
22V631000 Aug 17, 2022
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Defect Description
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, ca... Read more
Consequence
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.
1,601 vehicles affected
Manufacturer: PACCAR Incorporated
22V547000 Jul 28, 2022
STEERING
Defect Description
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 i... Read more
Consequence
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. PACCA... Read more
47,500 vehicles affected
Manufacturer: PACCAR Incorporated

No complaints found for this vehicle.

Technical Service Bulletins, 2023 PETERBILT 520

14 manufacturer communications from 12 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

ComponentBulletins
060000 ENGINE AND ENGINE COOLING7
030000 BRAKES (PWS)1
130000 VISIBILITY1
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL1
350000 EQUIPMENT1
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)1
080000 FUEL SYSTEM, DIESEL1
100000 POWER TRAIN1
E307 Apr 19, 2024
060000 ENGINE AND ENGINE COOLING
CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022-2023 PX-7 or PX-9 Operator??A?A?s Manuals are incorrect.
E307 Apr 19, 2024
100000 POWER TRAIN
CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022-2023 PX-7 or PX-9 Operator??A?A?s Manuals are incorrect.
E290 Nov 20, 2023
060000 ENGINE AND ENGINE COOLING
Updated procedures and SRT time to include Fuel Filter replacement during cleaning process. Removed in-tank additive references.
46-003 Oct 31, 2023
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
A software fix for model 520EV that are not equipped with ESP (Stability Control) is now available. The currently available soft ware, part number:SCM_1p5_BC_R5p00_003, will address issues caused by software version R5.00_002 that affect Pe
E306 Oct 18, 2023
080000 FUEL SYSTEM, DIESEL
Incorrect fuel filter drain and replacement procedures on EPA21 MX-11 and MX-13 engines can result in the following: .Debris and contaminants introduced into the high-pressure fuel system. .Denial of warranty claims for injector and/or f
45-066 Oct 17, 2023
060000 ENGINE AND ENGINE COOLING
A testing procedure has been created for the coolant level sensor on model 520.
E300 May 3, 2023
060000 ENGINE AND ENGINE COOLING
PACCAR will reimburse customers for the local purchase of in-tank fuel additive for EPA2021 compliant MX engines. This is a one-time reimbursement. Only customers who have received E290 injector cleaning qualify for this reimbursement. See
E290 Apr 3, 2023
060000 ENGINE AND ENGINE COOLING
FIX-AS-FAIL a?? Updated procedures and claim filing information. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information.
51-015 Mar 22, 2023
350000 EQUIPMENT
RFID (Radio Frequency ID) tags are being added and used to track Non-Test Ready (NTR) trucks to efficiently locate them once they are off the production line, but still on the premises. The tags are left on the trucks which have been sold.
R2202 Jan 12, 2023
060000 ENGINE AND ENGINE COOLING
The emissions exemption expired on 12/31/2022 for certain pre-production vehicles equipped with PACCAR Model Year 2023 MX engines. Production-level engine, VECU, and Digital Display software is now available to make these vehicles compliant
63-009 Nov 1, 2022
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Peterbilt SmartLINQ subscriptions can be renewed online via PACCAR Solutions RemoteDiagnostics web portal.
03-085 Oct 19, 2022
130000 VISIBILITY
This is a follow-up bulletin to shortage bulletin S017. Parts kits are now available to install the Bendix Side Collision Mitigation Radar system (BlindSpotter) on chassis that were delivered with a prewire sales code due to parts shortage
45-064 Oct 18, 2022
060000 ENGINE AND ENGINE COOLING
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic c
13-060 Aug 3, 2022
030000 BRAKES (PWS)
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.

PETERBILT 520 - All Years Overview

Complete safety history for the PETERBILT 520 across all model years (1990, 2026).

97 Total Recalls
4 Total Complaints
0 Investigations
0 Reported Crashes
0 Reported Fires
0 Reported Deaths

PETERBILT 520 - Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year Recalls Complaints
2026 2 0 View
2025 7 0 View
2024 8 0 View
2023 (current) 5 0
2022 4 0 View
2021 6 0 View
2020 12 3 View
2019 8 1 View
2018 8 0 View
2017 5 0 View
2016 4 0 View
2015 3 0 View
2014 1 0 View
2013 1 0 View
2012 1 0 View
2011 1 0 View
2010 1 0 View
2009 1 0 View
2008 1 0 View
2007 1 0 View
2006 1 0 View
2005 1 0 View
2004 1 0 View
2003 1 0 View
2002 1 0 View
2001 1 0 View
2000 1 0 View
1999 1 0 View
1998 1 0 View
1997 1 0 View
1996 1 0 View
1995 1 0 View
1994 1 0 View
1993 1 0 View
1992 1 0 View
1991 1 0 View
1990 1 0 View

Other PETERBILT Models

Model Recalls Complaints
567 326 11 View
579 308 53 View
389 271 34 View
367 260 0 View
365 259 1 View
548 202 0 View
348 158 0 View
320 154 7 View