Vehicle report

2019 PETERBILT 579

Service bulletins

82 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

E311

Service Bulletin/Repair Instructions

105 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage. Total chassis population is 732.

02-177

Service Bulletin/Repair Instructions

Troubleshooting procedures for 2.1m cab power windows are now available.

45-070

Service Bulletin/Repair Instructions

The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.

CE036

Warranty Program/Extension

KW & PB DEF Quality Sensor part number Q21-6127-001 for PACCAR PX-7 and Cummins X15 engines has been added to this warranty policy.

14-034

Service Bulletin/Repair Instructions

Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.

E326

Emissions

EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.

T016 / 26-040

Service Bulletin/Repair Instructions

T016: Warranty section updated to include 0.5 hours for test drive. Recommended Repair T016C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes. 26-040: Warranty section updated to include 0.5 hours for test drive. Recommended Repair 26040C has been updated from 6.4 hours to 6.9 hours. SRT codes updated in PRWS Claim Coding Table: B25-17A for 6.9 hours created to replace all other codes.

46-016

Service Campaign

4/29/2025: Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Software update procedures have been revised. Campaign start date is 12/05/2024. Campaign A software update is available for 520EV and 579EV Battery Electric Vehicles. This software update corrects or improves certain functions. Campaign start date is 12/05/2024.

32-025

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 starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied.

7-700

Warranty Program/Extension

7/700 Service Agreement - Letter Only.

16-044

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 results in either deflated airbags or makes them unable to inflate. Fix-as-fail start date is 07/30/2024.

E273

Service Bulletin/Repair Instructions

Fix As Fail Updated: Two part numbers added: 1818119 DPF Delta Pressure Sensors for MX-13-2 EMY18 2200138 DPF Delta Pressure Sensors for MX-13 -2, EMY19 Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act, 1999 (CEPA)), a letter has been provided to owners of Canadian registered chassis that provides a list of emissions components that have been reported (to ECCC) as having a defect.

45-066

Service Bulletin/Repair Instructions

A testing procedure has been created for the coolant level sensor on model 520.

28-001

Service Bulletin/Repair Instructions

For all Peterbilt chassis equipped with an air shifted PTO. Oil from the air shift cover of the PTO may leak into the air line, causing the EOA solenoid to become inoperative.

01-079

Service Bulletin/Repair Instructions

Fix-as-Fail - HVAC Intermittently Stops Blowing Cold Air

02-178

Service Bulletin/Repair Instructions

Fix As Fail – Certain 579, and New Model 579 chassis that were manufactured with a Bendix forward looking camera system may experience bracket failure causing the bracket and camera to fall from the windshield.

34-096

Service Bulletin/Repair Instructions

Fix As Fail – All New Model 579 chassis with Bendix radar opti on may have a harness rub against the radiator that is causing possible damage.

E298

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.

32-019

Service Bulletin/Repair Instructions

Fix As Fail – Chassis that were manufactured with certain battery cable routing brackets may experience rubbing or chafing of the battery cables.

E303

Service Bulletin/Repair Instructions

This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs. Broken oil valve tabs can cause oil flow obstruction to critical engine parts, resulting in serious engine damage. Customers that do not receive this repair may be responsible for progressive engine damage caused by broken oil bypass valve tabs.

21PBN

Service Bulletin/Repair Instructions

21PBN – LNG/CNG Methane Detecti on System Will Not Warn Operator if System Loses Power – NHTSA ID:21V00N, TC: 2021-793

45-064

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 deliver secure software updates remotely. This will reduce downtime and save on maintenance costs for eligible vehicles.

14-043

Service Bulletin/Repair Instructions

Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height Control Valve (HCV) arm may be rubbing on other components when the bend in the arm is facing outboard. Flipping the bend in the HCV arm inboard prevents the rub.

13-060

Service Bulletin/Repair Instructions

The service information for Bendix Air Dryer maintenance is being updated to include new procedures.

04-019

Service Bulletin/Repair Instructions

A roof fairing reinforcement kit increases structural support for one-piece 579 roof fairings that are experiencing fatigue from external forces such as reverse towing.

34-090

Service Bulletin/Repair Instructions

A frame mounted left-hand marker light bracket interferes with the rear fuel tank fill location. A redesigned bracket can be purchased that relocates the marker bracket to the front fuel tank bracket to eliminate interference.

51-013

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 primary antenna may experience this degradation.

21PBM

Service Bulletin/Repair Instructions

​Safety Recall – Work Brake May Unintentionally Disengage – NHTSA ID: 21V906, TC: 2021-713. The work brake (also known as winch brake) may unintentionally disengage during winching operations, releasing the service brakes, increasing the risk of crash or injury. The VECU software will be updated to correctly set the speed interlock parameter.

26-038

Service Bulletin/Repair Instructions

Non-Safety Campaign:  Eaton Endurant transmissions may experience premature Main Drive Gear damage due to clutch housing and main case countershaft bearing bore wear. A Clutch Housing Front Cover Kit will be installed to address the issue.

T012

Service Bulletin/Repair Instructions

Non-Safety Campaign: ​Drivers of vehicles equipped with PACCAR TX-12 transmissions may experience harsh shifts and gear grinding noise. Premature Main Drive Gear damage may occur due to clutch housing and main case countershaft bearing bore wear.

42-059

Service Bulletin/Repair Instructions

Non-Safety Campaign - Vehicles with a Cummins X15 engine and Horton fan drive may set Diagnostic Trouble Code (DTC) 6637 and/or 3838 due to fan speed that results in the fan remaining activated until the power is cycled. A new controller will resolve the issue.

43-071

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 operation with a failed DEF sensor by disabling the DEF sensor diagnostics.

21-PBF

Service Bulletin/Repair Instructions

Safety Recall – Interim Notification - The Daytime Running Lamps (DRLs) may turn off while the vehicle is in motion and the headlamps, fog lamps or turn signals are not on. This is non-compliant with Canadian Regulation CMVSS 108, which states that the DRLs must be on while the vehicle is in motion without certain other lamps being activated. This bulletin will be updated when a repair is available.

E265

Service Bulletin/Repair Instructions

Selected engines have been identified to receive a camshaft inspection and an update for improved camshaft lubrication.

02-161

Service Bulletin/Repair Instructions

Non-Safety Campaign- Chassis Fairings become loose and rattle.

32-017

Service Bulletin/Repair Instructions

Non-Safety Campaign – The batteries may drain quickly due to the VECU not going to sleep. Updated VECU software is available to resolve the issue.

32-018

Service Bulletin/Repair Instructions

Non-Safety Campaign – Chassis with the City Horn option may generate unexpected alerts. A VECU software update is available to resolve the issue.

02-160

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.

T011

Service Bulletin/Repair Instructions

Fix-As-Fail - Prior versions of PACCAR transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.

26-035

Service Bulletin/Repair Instructions

Non-safety campaign: Vehicles equipped with an Eaton Endurant 12 speed transmission may experience transmission service lamp activation, no gear engagement from neutral, and/or DTC 511 FMI 7 or 10 is set. Resolution is to update the transmission software and calibrations.

26-037

Service Bulletin/Repair Instructions

Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.

13-055

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 of the frame rail.

02-158

Service Bulletin/Repair Instructions

Fix as Fail: Peterbilt has determined that certain model 348, 365, 367, 382, 384, 386, 388, 389, 567, 579, and 587 trucks, built between 4/13/2010 and 3/16/2020 and equipped with a flush mounted battery box, utilized rubber washers that could rub through and cause the aluminum box mounting tabs to rub directly on the steel frame brackets. This could result in cracked battery box mounting angles. Resolution is to add the reinforcement bracket(s) to affected vehicles.

13-054

Service Bulletin/Repair Instructions

Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking

43-067

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 rotate and contact the cab or sleeper.

32-015

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.

11-001

Service Bulletin/Repair Instructions

Information only: Hendrickson Softek front axle maintenance intervals and requirements.

20PBA

Service Bulletin/Repair Instructions

Safety Recall: NHTSA recall number is 20V130. A defect, which relates to motor vehicle safety, may exist in certain Model 365, 389, 567, and 579 vehicles manufactured between April 18, 2014 and March 09, 2020 with a left-hand under hood jumper start terminal. Jumper terminal battery cables may be too long, or eligible for improved routing. Battery cables that are too long may chafe against the left front suspension leaf spring, which could cause a short circuit, fire under the hood, or increased risk of crash.

20 PBC

Service Bulletin/Repair Instructions

Safety Recall Interim Bulletin: The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power. NHTSA recall number is 20V199 Non compliance to FMVSS and CMVSS 121 and 136. Resolution is to Reflash software.

43-066

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 by adding bottom tank washers.

34-086

Service Bulletin/Repair Instructions

Fix as Fail: Peterbilt has determined in model 567 and 579 vehicles built after 2011, the door harnesses may fail due to repeated door open and close cycles. Resolution is to replace the door harness with a more robust designed harness if a failure is experienced.

32-016

Service Bulletin/Repair Instructions

Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.

01-077

Service Bulletin/Repair Instructions

Fix as Fail: Peterbilt has determined that model 567 and 579 vehicles built after January 01, 2013 and equipped with Espar fuel fire heater and SmartAir may have temperature overshoot issue. User may experience higher sleeper interior temperature than the set temperature on the SmartAir control. Resolution is to install an additional external temperature sensor on the sleeper control panel.

01-078

Service Bulletin/Repair Instructions

Fix as Fail: Peterbilt has determined that certain models 567 and 579 vehicles built after January 01, 2013 with an Espar fuel fire heater and SmartAir may have an auto On/Off malfunction at lower temperatures. User may experience lack of heat function on SmartAir if the set temperature is < 76 °F. Resolution is to install a jumper harness.

03-071

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.

56-003

Service Bulletin/Repair Instructions

Non-Safety Campaign: Certain Model 567 and 579 vehicles, built between 4/03/2018 and 12/21/2018, and equipped with Cummins engines and Eaton Endurant transmissions had the Enable PTO parameter incorrectly set. Fault code 900 may present and the PTO does not function as intended. Resolution is to update the ECU software and endable the Endurant PTO 1 1939 parameter.

52-002

Service Bulletin/Repair Instructions

Fix-As-Fail - DEA5XX radio may be locked in the ON position or stuck in hi volume. A software update is available to resolve this issue.

01-071

Service Bulletin/Repair Instructions

Fix as Fail: Certain Models 579 and 567 vehicles manufactured with a Cummins ISX-15 engine built before 11/05/2018 the evaporator core may crack. An improved suction line has been released to alleviate the stress that may cause a cracked evaporator core

01-075

Service Bulletin/Repair Instructions

Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.

16-041

Service Bulletin/Repair Instructions

Non Safety Campaign: Peterbilt has determined that certain Model 365, 384, 386, 388, 389, 3895, 587 and 579 vehicles built between March 27, 2012 and January 20, 2019 with Flex Air suspension in a 6x2 configuration have U-bolts that may fail prematurely.

TIB43-062

Service Bulletin/Repair Instructions

Information Only – This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).

26-034

Service Bulletin/Repair Instructions

Fix as Fail: Certain model 579 and 567 vehicles equipped with Eaton Endurant or PACCAR AMT transmissions, built between 5/01/2017 and 4/07/2019, may have a fluid pressure sensor rubbing or experiencing hard interference with routing brackets, power cables, wiring harnesses, or air lines in the driver’s side frame rail.

34-082

Service Bulletin/Repair Instructions

Fix as Fail Vehicles are susceptible to noise interference due to an incorrect V-Can wiring in the roof harness. A procedure for installing a V-CAN overlay will correct this issue.

44-030

Service Bulletin/Repair Instructions

Fix-As-Fail - Nylon fuel lines may be too short, potentially resulting in a cracked or loose, low pressure fuel fitting at the engine or fuel tank, which may introduce air into the fuel system resulting in a hard-to-start or no-start condition.

42-056

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

Service Bulletin/Repair Instructions

Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.

02-150

Service Bulletin/Repair Instructions

Fix as Fail Vehicles equipped with chassis fairings may have battery box openings that allow debris to enter the box. A battery box closeout has been designed and when installed will prevent debris from entering the battery box.

45-060

Service Bulletin/Repair Instructions

Non-Safety Campaign Vehicles were built with a ladder bracket to aide in the routing of engine harnesses could potentially cause damage to the engine harness and must be removed.

01-073

Service Bulletin/Repair Instructions

Fix as Fail HVAC system may demonstrate inadequate temperature control, be stuck in defrost mode, or have intermittent changes in fan speed that can be remedied with an updated HVAC software.

23-003

Service Bulletin/Repair Instructions

Fix as Fail: Vehicles with Eaton Ultrashift Plus or Fuller Advantage Automated transmissions may display fault codes and/or have clutch release problems due to broken clutch levers. Resolution is to replace the clutch.

15-027

Service Bulletin/Repair Instructions

Non Safety Campaign: ZF (supplier) steering gear boxes may have a sealing plug not seated corrected allowing power steering fluid loss.

34-066

Service Bulletin/Repair Instructions

Information Only - Quick Reference Guide for Electric harness damage repairs.

34-071

Service Bulletin/Repair Instructions

Non-Safety Campaign: Vehicles ordered with parameter for brake lights disabled when engine brake applied were built with this feature enabled.

59-002

Service Bulletin/Repair Instructions

Non Safety Campaign: Holland Series FW17 fifth wheel handles may remain in an unlocked position when coupling to a parked trailer.

34-079

Service Bulletin/Repair Instructions

Fix-As-Fail ? Intermittent throttle hesitation may be encountered after installing an optional PTO connector.

R1802

Service Bulletin/Repair Instructions

Non-Safety Campaign: Vehicles built with pre-production UltraLoft components are eligible for an upgrade to production quality components.

34-077

Service Bulletin/Repair Instructions

Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.

18PBC

Service Bulletin/Repair Instructions

Safety Recall: Vehicles fail to confirm with FMVSS/CMVSS No 108 - Table 1-a requirements for intermediate side marker lamp and reflex reflector.

13-049

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.

34-073

Service Bulletin/Repair Instructions

Fix-As-Fail: Vehicles equipped with VECU may activate frequently when LVD is enabled. Resolution is to update the CECU software.

03-064

Service Bulletin/Repair Instructions

Information - Recommended Practices for Updating ESA Software

116-1

Service Bulletin/Repair Instructions

SmartNav 2.0 Hardware retrofit for quality validation and vehicle validation units.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.

2019 Peterbilt 579 Service Bulletins: 82 bulletins | CarFathom