2014 Peterbilt 579 TSBs
55 Technical Service Bulletins across 11 categories
Categories
Electrical
14 bulletinsNon-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.
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.
Information Only - Quick Reference Guide for Electric harness damage repairs.
Non Safety Campaign: The circuit for the Trailer Hotline/Trailer Power may not be properly protected on Model 567/579...
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vehicles equipped with this option.
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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THE RH U/C AERODYNAMIC CLOSEOUTS HAVE INCORRECT CUTOUT LOCATIONS FOR AFTER TREATMENT HARNESS AND CLOSEOUT LOCATIONS NEED MODIFICATION TO ALLOW CORRECT ROUTING OF RH U/C AFTER TREATMENT HARNESS. MODEL 2012-2013 579. *PE
Body & Paint
7 bulletinsTroubleshooting procedures for 2.1m cab power windows are now available.
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.
PETERBILT: INSTRUCTION INFORMATION IS BEING PROVIDED REGARDING THE SHIPPING OF SLEEPER ROOF FAIRING (72" AND 80"), WITH VEHICLE, FROM FACTORY.
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MODEL 579, 567. NO YEARS LISTED. *PE
PETERBILT: A DESIGN CHANGE, FOR HOOD LATCH AREA, PROVIDING REINFORCEMENT OF INSTALLED HOOD FAILING TO MEET SPECIFICATIONS ON SOME TRUCKS.
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MODEL 579. NO MODEL YEARS LISTED. *PE
HVAC & Climate
7 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: HVAC panel and temperature mode doors are failing for certain 579 and 567 models.
FIX-AS-FAIL: PETERBILT 567/579 HVAC PANEL AND TEMPERATURE MODE DOORS NOT FUNCTIONING PROPERLY
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.
Engine
6 bulletinsInfo 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.
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system...
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software related issues.
FIX-AS-FAIL: MOLDED AIR INTAKE PIPE MAY CRACK ALLOWING DUST TO INTRUDE INTO ENGINE.
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PROCEDURE IS PROVIDED FOR INSPECTING AND REPLACING THE AIR INTAKE PIPE.
NON-SAFETY CAMPAIGN: REPLACE THE MOLDED AIR INTAKE PIPE, WHICH CAN CRACK AND ALLOW ROAD DEBRIS INTO THE ENGINE.
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DEBRIS ENTERING THROUGH THE INTAKE MAY CAUSE SEVERE ENGINE DAMAGE.
PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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CERTAIN TRUCKS, AT TIME OF ASSEMBLY, MAY NOT HAVE A PROPERLY SEATED UPPER REVERSE IDLER FEED TUBE (OIL SUPPLY LINE), RESULTING IN BEARINGS HAVING REDUCED OIL PRESSURE. *PE
PETERBILT: THE MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATES DUE TO AN ENGINE CONTROL UNIT (ECU) SOFTWARE ISSUE, REAR NOX SENSOR, OPERATING CORRECTLY.
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*PE
Lighting
5 bulletinsSafety 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)
NON-SAFETY CAMPAIGN: WATSON & CHALIN LIFT AXLE FRAME BRACKETS WITH SLOTTED LOWER MOUNTING HOLES MAY EXHIBIT CRACKING...
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WHEN FASTENERS ARE POSITIONED AT THE UPPER PORTION OF THE SLOT. INSTALLING A DOUBLER PLATE MAY PREVENT CRACKS FROM DEVELOPING. FOR VEHICLES WHERE CRACKING IS EVIDENT, A NEW UPDATED SIDE PLATE WILL BE INSTALLED.
PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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WHILE TRUCK IS MOVING, AND EXTERIOR LIGHT SWITCH IS ACTIVATED, WILL CAUSE LIGHTS TO GO OUT AND SWITCH PLUG NEEDS REPLACING AND SOFTWARE UPDATED. MODELS 567, 579. NO MODEL YEARS LISTED. *PE
Software & Calibration
4 bulletinsThe 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
Pre-Delivery & Maintenance
3 bulletinsNon-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).
Brakes
3 bulletinsFix 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.
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
2 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."
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
Infotainment
2 bulletinsSmartNav 2.0 Hardware retrofit for quality validation and vehicle validation units.
PETERBILT: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER.
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ON SOME TRUCKS, WITH QUALCOMM, THE SPEAKER FOR QUALCOMM WAS NOT INSTALLED, AND NEEDS TO BE INSTALL. MODEL 579. NO YEARS LISTED. *PE
Suspension
2 bulletinsNon 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.
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.