2018 Peterbilt 579 TSBs
91 Technical Service Bulletins across 16 categories
Categories
Engine
20 bulletinsAn exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines.
EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX...
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engines.
Procedure pictures updated for clarity.
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When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process but must be used alongside Cummins troubleshooting steps. Cummins Quickserve will reference this bulletin for fault codes 555 or 556.
"Campaign New and improved software is now required for chassis equipped with an Engine Model Year 2016 PACCAR MX-13...
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engine to maintain DEF sensor performance and ensure compliance with emissions standards.
Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues.
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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.
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.
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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.
Certain Engine Model Year 2018 PACCAR MX-11 engines must have the crankcase pressure sensor replaced due to...
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contamination during assembly.
This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs.
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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.
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with...
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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.
Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height Control Valve...
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(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.
Non-Safety Campaign - Vehicles with a Cummins X15 engine and Horton fan drive may set Diagnostic Trouble Code (DTC) 6637...
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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.
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system...
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software related issues.
Selected engines have been identified to receive a camshaft inspection and an update for improved camshaft lubrication.
"Safety Recall: NHTSA recall number is 20V130.
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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. "
Safety Recall Interim Bulletin: Peterbilt has decided that a defect, which relates to motor vehicle safety, may exist in...
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certain Model 365, 389, 567, and 579 vehicles manufactured between April 18, 2014 and September 30, 2019 with a left-hand under hood jumper start terminal. Your vehicle may have jumper terminal battery cables that are too long, or are 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.
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.
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An improved suction line has been released to alleviate the stress that may cause a cracked evaporator core
Non-Safety Campaign Vehicles were built with a ladder bracket to aide in the routing of engine harnesses could...
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potentially cause damage to the engine harness and must be removed.
Fix-As-Fail - Nylon fuel lines may be too short, potentially resulting in a cracked or loose, low pressure fuel fitting...
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at the engine or fuel tank, which may introduce air into the fuel system resulting in a hard-to-start or no-start condition.
Fix-As-Fail - Composite fittings used in the cooling system may crack, resulting in coolant leaks.
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Brass fittings are available to replace the composite fittings.
Non-Safety Campaign: Vehicles equipped with Cummins ISX12 engines may have missing line heater fuses or relays.
Electrical
20 bulletinsA testing procedure has been created for the coolant level sensor on model 520.
Fix As Fail Chassis that were manufactured with certain battery cable routing brackets may experience rubbing or...
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chafing of the battery cables.
Non-Safety Campaign - The TPMS ECU is not communicating properly with TPMS sensors.
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The result is a delay or failure of communication between the TPMS ECU and the TPMS sensors , causing inaccurate TPMS readings. A firmware update resolves the issue.
Fix-As-Fail Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available.
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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.
Non-Safety Campaign Chassis with the City Horn option may generate unexpected alerts.
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A VECU software update is available to resolve the issue.
Non-Safety Campaign The batteries may drain quickly due to the VECU not going to sleep.
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Updated VECU software is available to resolve the issue.
Fix-As-Fail The Master Switch Module (MSM) may lose dash switch memory and functionality when the battery disconnect switch is cycled.
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An improved MSM is available to resolve the issue.
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the...
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appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (SOC) exhaust and built from...
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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.
Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...
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to water intrusion and corrosion in some vehicles.
Fix as Fail: Peterbilt has determined in model 567 and 579 vehicles built after 2011, the door harnesses may fail due...
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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.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead...
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to sensor corrosion.
Fix as Fail: Peterbilt has determined that certain models 567 and 579 vehicles built after January 01, 2013 with an...
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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.
Fix as Fail: Peterbilt has determined that model 567 and 579 vehicles built after January 01, 2013 and equipped with...
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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.
Fix as Fail Vehicles are susceptible to noise interference due to an incorrect V-Can wiring in the roof harness.
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A procedure for installing a V-CAN overlay will correct this issue.
Fix as Fail Vehicles equipped with chassis fairings may have battery box openings that allow debris to enter the box.
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A battery box closeout has been designed and when installed will prevent debris from entering the battery box.
Information Only - Quick Reference Guide for Electric harness damage repairs.
Fix as Fail: DAVIE4 Service Tool is unable to support software updates on VECU's with Incorrect Hardware Part Numbers
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
Software & Calibration
8 bulletinsThe Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the...
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latest prognostics bulletin verbiage.
The attached procedures document has been updated with more detail and explanations.
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This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
T016: Warranty section updated to include 0.5 hours for test drive.
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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.
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer.
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The issue can be temporarily resolved using any one of the included procedures.
Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error.
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Notice to dealers to replace this version with older software version until Bendix introduces new version.
Information - Recommended Practices for Updating ESA Software
Transmission
8 bulletinsFor all Peterbilt chassis equipped with an air shifted PTO.
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Oil from the air shift cover of the PTO may leak into the air line, causing the EOA solenoid to become inoperative.
Non-Safety Campaign: Drivers of vehicles equipped with PACCAR TX-12 transmissions may experience harsh shifts and gear grinding noise.
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Premature Main Drive Gear damage may occur due to clutch housing and main case countershaft bearing bore wear.
Non-Safety Campaign: Eaton Endurant transmissions may experience premature Main Drive Gear damage due to clutch housing...
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and main case countershaft bearing bore wear. A Clutch Housing Front Cover Kit will be installed to address the issue.
Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator...
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(LCA) fault codes leading to possible LCA hardware replacement.
Non-safety campaign: Vehicles equipped with an Eaton Endurant 12 speed transmission may experience transmission service...
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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.
Fix-As-Fail - Prior versions of PACCAR transmission software may be prone to setting Linear Clutch Actuator (LCA) fault...
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codes leading to possible LCA hardware replacement.
Fix as Fail: Certain model 579 and 567 vehicles equipped with Eaton Endurant or PACCAR AMT transmissions, built between...
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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 drivers side frame rail.
Fix as Fail: Vehicles with Eaton Ultrashift Plus or Fuller Advantage Automated transmissions may display fault codes...
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and/or have clutch release problems due to broken clutch levers. Resolution is to replace the clutch.
Body & Paint
6 bulletinsTroubleshooting procedures for 2.1m cab power windows are now available.
A roof fairing reinforcement kit increases structural support for one-piece 579 roof fairings that are experiencing...
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fatigue from external forces such as reverse towing.
Information Only Windshield washer pumps have a high No Trouble Found rate.
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Washer pumps may fail to spray due to a clogged filter.
Fix as Fail: Certain model 579 trucks manufactured between September 5, 2014 and May 25, 2018 may have a faux door...
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panel on the fairing with an insufficient weld that could result in the panel loosening. Resolution is to replace the applicable door panel upon failure.
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
Informational Only - Peterbilt 579 aero bumper radar cover license plate grommets require 1/4"x 20 x 3/4"long...
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fasteners.
Pre-Delivery & Maintenance
5 bulletins105 chassis have been removed from the chassis list and unflagged in PRWS due to expiration of applicable warranty coverage.
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Total chassis population is 732.
7/700 Service Agreement - Letter Only.
Non-Safety Campaign- Chassis Fairings become loose and rattle.
Information only: Hendrickson Softek front axle maintenance intervals and requirements.
Information Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke...
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Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
HVAC & Climate
5 bulletinsFix-as-Fail - HVAC Intermittently Stops Blowing Cold Air
Fix as Fail The HVAC system, on model 579 and 567 vehicles manufactured since 1/20/2012 may have inadequate temperature control.
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The HVAC may intermittently stop blowing cold air, typically after a truck restart. Driver may notice the system returns to normal after key cycle. The remedy is updating HVAC software.
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...
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A/C compressor.
Fix as Fail HVAC system may demonstrate inadequate temperature control, be stuck in defrost mode, or have intermittent...
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changes in fan speed that can be remedied with an updated HVAC software.
FIX-AS-FAIL: AN INTERNAL ISSUE MAY CAUSE SOME HVAC MODE DOOR ACTUATORS TO FAIL.
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THIS WILL CAUSE THE HVAC SYSTEM TO ACT ERRATICALLY OR CONSTANTLY TURN ON AND OFF.
Brakes
5 bulletinsSafety Recall Work Brake May Unintentionally Disengage NHTSA ID: 21V906, TC: 2021-713.
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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.
Fix as Fail: Peterbilt has determined that certain model 348, 365, 367, 382, 384, 386, 388, 389, 567, 579, and 587...
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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.
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
Safety Recall Bulletin: Updated with permanent repair path for phase 1 vehicles.
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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. Resolution is to Reflash software.
Safety Recall Interim Bulletin: The Tractor ABS Lamp May Not Illuminate When ABS Controller Loses Battery and/or Ignition Power.
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NHTSA recall number is 20V199 Non compliance to FMVSS and CMVSS 121 and 136. Resolution is to Reflash software.
Other
4 bulletins"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
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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."
21PBN LNG/CNG Methane Detecti on System Will Not Warn Operator if System Loses Power NHTSA ID:21V00N, TC: 2021-793
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number...
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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.
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
Lighting
4 bulletinsFix as Fail: Peterbilt has introduced an improved mounting bracket for low mount air tanks for vehicles built between...
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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.
Safety Recall: Vehicles fail to confirm with FMVSS/CMVSS No 108 - Table 1-a requirements for intermediate side marker...
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lamp and reflex reflector.
Information only - Customer installed inverters may be wired incorrectly.
Fix-As-Fail - Low Beam Headlamp Bulb Diagnosis (Inspect Bulb and Connector)
Fuel System
1 bulletinDue to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile...
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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.
Tires & Wheels
1 bulletinInterim Safety Recall Methane detection system will not warn the operator if the system loses power.
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The driver could be unaware of an issue with the methane detection system or excessive methane present, increasing the risk of a fire, crash and/or personal injury. The repair procedure will be added when it is available.
Infotainment
1 bulletinSmartNav 2.0 Hardware retrofit for quality validation and vehicle validation units.
Suspension
1 bulletinNon Safety Campaign: Peterbilt has determined that certain Model 365, 384, 386, 388, 389, 3895, 587 and 579 vehicles...
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built between March 27, 2012 and January 20, 2019 with Flex Air suspension in a 6x2 configuration have U-bolts that may fail prematurely.
Steering
1 bulletinNon-Safety Campaign: Vehicles built with pre-production steering column parts are updated with production quality...
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components.
Air Bags & Safety
1 bulletinSafety Recall Interim Notification: Seat belt buckle assemblies were glued and not sewn, allowing seat belt to come...
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apart.