AutoStatsIQ
Data through Oct 2026
Model year

2018 Peterbilt 520

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (8)Complaints (0)Investigations (1)Bulletins (48)
Recall campaigns covering this model year841k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2018 Peterbilt 520 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

8 recall campaigns cover the 2018 Peterbilt 520

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2018 Peterbilt 520
CampaignFiledSubjectComponentVehiclesRemedy
22V-939Dec 16, 2022Suspension tracking rod brackets may fail and detach from the forward drive axle, causing the axle to become unstableSuspension15,658Repair or modification
22V-277Apr 25, 2022Dana D-Series axle steer arm fasteners that attach the steering arm to the steering knuckle may failSteering17,641Part replacement
21V-391May 26, 2021Sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leakFuel system612Part replacement
21V-004Jan 11, 2021Steering column support structure may crack or break in certain right-hand, stand-up drive modelsSteering1,021Part replacement
20V-132Mar 4, 2020Rear brake signal hose may be missing a quick release valve, possibly causing a delay in their brake release timingBrakes233Repair or modification
19V-917Dec 20, 2019Steering assist cylinder bracket may not have been properly mountedSteering21Not stated
19V-452Jun 14, 2019Turn signals may also light up with the stop/tail lights when the brakes are appliedLighting343Repair or modification
19V-282Apr 9, 2019Due to undersized wires, the connector between the cab power harness and the power distribution center (PDC) harness may overheat and melt,…Electrical system5,051Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2018 Peterbilt 520

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    1 NHTSA investigation on file

    • PE20015 Preliminary evaluation, Structure
      Quarter Fender Failures
      Opened Sep 21, 2020, closed Oct 14, 2021
    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    48 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

    • P001 Sep 11, 2026 · Service Bulletin/Repair Instructions
      "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
    • E326 Apr 1, 2026 · Emissions
      EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
    • 32-025 Nov 22, 2024 · Service Bulletin/Repair Instructions
      Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary…
    • 7-700 Oct 22, 2024 · Warranty Program/Extension
      7/700 Service Agreement - Letter Only.
    • 16-044 Jul 30, 2024 · Service Bulletin/Repair Instructions
      Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to toggling over center during rough road conditions. With full suspension articulation, HCV bracket flexes and toggles over center the HCV linkage, which res…
    • E298 Feb 27, 2023 · Service Bulletin/Repair Instructions
      Certain Engine Model Year 2018 PACCAR MX-11 engines must have the crankcase pressure sensor replaced due to contamination during assembly.
    • 45-064 Oct 18, 2022 · Service Bulletin/Repair Instructions
      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 cs hardware to del…
    • 13-060 Aug 3, 2022 · Service Bulletin/Repair Instructions
      The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
    • 01-085 Jul 12, 2022 · Service Bulletin/Repair Instructions
      Info Only – Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service ports simultaneously. …
    • 51-013 Feb 4, 2022 · Service Bulletin/Repair Instructions
      Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a primar…
    • 43-071 Sep 21, 2021 · Service Bulletin/Repair Instructions
      Fix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue op…
    • 45-062 Jun 21, 2021 · Service Bulletin/Repair Instructions
      ​Fix-As-Fail – PX9 oil pan may leak due to improper hardware. Revised hardware will resolve the leak.
    • 21-PBD Jun 22, 2021 · Service Bulletin/Repair Instructions
      Safety Recall – Cummins Fuel Rail Leak – NHTSA ID: 21V391 / TC: 2021-323, Cummins Recall: C2423. Cummins PX9 and ISX12 fuel rails may leak around a sealing washer, potentially resulting in fuel leaks. Undetected prolonged diesel fuel spray in the presence o…
    • E271 Jun 8, 2021 · Service Bulletin/Repair Instructions
      An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system software related issues.
    • 34-074 Feb 25, 2021 · Service Bulletin/Repair Instructions
      The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture. The presence of the wire could result in a false fault code.
    • 02-160 Feb 10, 2021 · Service Bulletin/Repair Instructions
      Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
    • 13-055 Oct 1, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between January 01, 2017 and July 06, 2020. Torsional vibration may stress the currently-installed brackets and cause them to fail near the bottom…
    • 13-054 Jul 29, 2020 · Service Bulletin/Repair Instructions
      Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
    • 32-015 Jun 8, 2020 · Service Bulletin/Repair Instructions
      Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
    • 43-067 Jun 10, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (“SOC”) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the exhaust stack to rota…
    • 11-001 May 29, 2020 · Service Bulletin/Repair Instructions
      Information only: Hendrickson Softek front axle maintenance intervals and requirements.
    • 18PBB Apr 30, 2020 · Service Bulletin/Repair Instructions
      Safety Recall Bulletin: Updated with permanent repair path for phase 1 vehicles. The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power. NHTSA recall number is 18V368. Non compliance to FMVSS and CMVSS 121 and 136…
    • 01-076 Apr 8, 2020 · Service Bulletin/Repair Instructions
      Fix as Fail: Model 520 trucks manufactured between 6/20/2017 and 8/10/2018 with LH and RH Steer may have a Recirculation Air Blend Door that does not work properly. Resolution is to remove the unneeded circuit and seal the wires.
    • 43-066 Mar 27, 2020 · Service Bulletin/Repair Instructions
      DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to resolve the vibration on the tank cover b…
    • 34-085 Mar 3, 2020 · Service Bulletin/Repair Instructions
      Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
    • 20PBB Mar 24, 2020 · Service Bulletin/Repair Instructions
      Safety Recall: Peterbilt has decided that certain Model 320 and 520 trucks built between 2/20/2015 and 7/16/2019 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a…
    • 32-016 Mar 17, 2020 · Service Bulletin/Repair Instructions
      Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
    • 34-085 Feb 28, 2020 · Service Bulletin/Repair Instructions
      Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead to sensor corrosion.
    • 03-071 Dec 18, 2019 · Service Bulletin/Repair Instructions
      Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
    • 02-151 Dec 11, 2019 · Service Bulletin/Repair Instructions
      Fix as Fail: Peterbilt has initiated an improvement to the Model 320/520 power window module. A vapor barrier will be installed over the module to prevent moisture.
    • 02-153 Nov 22, 2019 · Service Bulletin/Repair Instructions
      Information only: Some model 320 and 520 vehicles built before 3/11/2019 may experience loss or loosening of doghouse insulation. Reference the procedure in the attachment section to properly remove and replace the insulation.
    • 01-075 Nov 6, 2019 · Service Bulletin/Repair Instructions
      Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
    • 02-154 Oct 17, 2019 · Service Bulletin/Repair Instructions
      Fix as Fail: Some model 520 right hand stand up vehicles built before 07/16/19 are experiencing washer fluid leakage from the windshield reservoir through the vent line. Resolution is to replace the current washer fluid line with a longer length.
    • TIB43-062 Sep 27, 2019 · Service Bulletin/Repair Instructions
      Information Only â“ This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
    • 42-056 Aug 28, 2019 · Service Bulletin/Repair Instructions
      Fix-As-Fail -“ Composite fittings used in the cooling system may crack, resulting in coolant leaks. Brass fittings are available to replace the composite fittings.
    • 42-058 Aug 23, 2019 · Service Bulletin/Repair Instructions
      Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
    • 19PBC Jul 19, 2019 · Service Bulletin/Repair Instructions
      Safety Recall: Vehicles fail to confirm with FMVSS/CMVSS No 108 Table 1-a requirements which requires 2 red stop lamps. Vehicles were equipped with additional amber stop lamps which may illuminate when the brake is applied, and may confuse other drivers. …
    • 34-066 Jun 10, 2019 · Service Bulletin/Repair Instructions
      Information Only - Quick Reference Guide for Electric harness damage repairs.
    • 45-061 Jun 10, 2019 · Service Bulletin/Repair Instructions
      Non-Safety Campaign: Identified Model 520 vehicles, equipped with natural gas engine, were built with a compressor supply hose with reinforced spring that could break loose and cause internal engine damage.
    • 19PBB May 31, 2019 · Service Bulletin/Repair Instructions
      Safety Recall: INTERIM NOTIFICATION - Peterbilt Motors Company has determined that a defect, which relates to motor vehicle safety, exists in certain model year 2017, 2018, 2019 and 2020 Model 520 vehicles manufactured between October 17, 2016 and March 04…
    • 34-077 Apr 8, 2019 · Service Bulletin/Repair Instructions
      Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
    • 34-074 Apr 4, 2019 · Service Bulletin/Repair Instructions
      Non Safety Campaign: Vehicles were built with a 5 bolt supply wire for the air dryer pressure sensor that is no longer required with current architecture. If left in place, a fault code P1644 may be set.
    • 13-049 Jan 4, 2019 · Service Bulletin/Repair Instructions
      Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version.
    • 02-146 Dec 4, 2018 · Service Bulletin/Repair Instructions
      Fix-As-Fail: Vehicles may have been built with windshield structure that is not to specification. Resolution is guided by District Service Manager review of issue.
    • 03-064 Jul 23, 2018 · Service Bulletin/Repair Instructions
      Information - Recommended Practices for Updating ESA Software
    • 36-003 Jun 5, 2018 · Service Bulletin/Repair Instructions
      Non-Safety Campaign - Installation of 3rd Eye Camera Harnesses on vehicles built missing this component.
    • 02-144 Jun 1, 2018 · Service Bulletin/Repair Instructions
      Non-Safety Campaign - Installation of sun visor on vehicles built missing this component.
    • 36-003 Jun 5, 2018 · Service Bulletin/Repair Instructions
      Non-Safety Campaign - Installation of 3rd Eye Camera Harnesses on vehicles built missing this component.
    Source: NHTSA manufacturer communications files.
    About service bulletins