2015 Kenworth T680 TSBs
48 Technical Service Bulletins across 13 categories
Categories
Engine
11 bulletinsE304: PACCAR MX-11 and MX-13 EMY2016 NOx and N2O Exceedance Emissions Recall Certain vehicles with PACCAR MX-11 and...
Read full bulletin
MX-13 EMY2016 engines with less than 300,000 miles (482,803 km) have been shown, in testing, to exceed regulatory limits for NOx and N2O emissions. This bulletin now applies to both Canadian and U.S.-registered vehicles. Software is now available to remedy this emissions non-compliance. NOTE California-registered vehicles that received a letter must have the software updated AND California documentation completed regardless of vehicle mileage.
Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may...
Read full bulletin
display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.
Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to...
Read full bulletin
provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure emissions compliance...
Read full bulletin
for On-Board Diagnostic (OBD).
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system...
Read full bulletin
software related issues.
T680 predictive cruise control(PCC) incompatibility with cummins engine.
Eaton ultrashift plus excessive engine over-speed lamp on.
Emissions Campaign The Engine Overspeed lamp may illuminate during a smoke opacity test.
Read full bulletin
A software update is available to resolve the issue.
Fix-As-Fail The evaporator core may crack in vehicles with the ISX-15 engine.
Read full bulletin
An improved suction line has been released that removes stress transferred to the evaporator core.
NON-SAFETY CAMPAIGN: REPLACE THE MOLDED AIR INTAKE PIPE, WHICH CAN CRACK AND ALLOW ROAD DEBRIS INTO THE ENGINE.
Read full bulletin
DEBRIS ENTERING THROUGH THE INTAKE MAY CAUSE SEVERE ENGINE DAMAGE.
FIX-AS-FAIL - ENGINE OVER-SPEED LAMP COULD COME ON AFTER A DOWNSHIFT WITH THE EATON ULTRASHIFT PLUS TRANSMISSION.
Read full bulletin
THIS DOES NOT AFFECT THE FUNCTION OF THE VEHICLE.
Electrical
11 bulletinsInformation Only C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast ...
Read full bulletin
the end of the 2021 calendar year without particulate matter (PM) sensors installed .
Non-Safety Campaign Chassis with the City Horn option may generate unexpected alerts.
Read full bulletin
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.
Read full bulletin
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...
Read full bulletin
appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...
Read full bulletin
to water intrusion and corrosion in some vehicles.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Information Only: The AutoStart System Test does not recognize the hood opening and closing when running the test on a...
Read full bulletin
model 579 or 567 chassis equipped with a VECU software version 9.8 and 9.9. The issue will be fixed on a future VECU software update. This bulletin will be updated when the resolution is available.
Fix as Fail: Vehicles built 11/30/15 to 7/18/16 may display an error message in the Service Advised display after...
Read full bulletin
updating CECU software.
Fix-as-Fail: CECU3 software P30-1011-139 software has been released.
Read full bulletin
This software update is not mandatory. This software requires MY2017 PCC software when installed on MY2015/2016 vehicles equipped with PCC.
Non Safety Campaign: The circuit for the Trailer Hotline/Trailer Power may not be properly protected on Model T680/T880...
Read full bulletin
vehicles equipped with this option.
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
Other
4 bulletins"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
Read full bulletin
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."
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number...
Read full bulletin
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.
Information: J1939 CAN BUS Best Practices
Body & Paint
4 bulletinsTroubleshooting procedures for 2.1m cab power windows are now available.
Information Only Windshield washer pumps have a high No Trouble Found rate.
Read full bulletin
Washer pumps may fail to spray due to a clogged filter.
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
FIX-AS-FAIL: THE HEAT-STAKE MOUNTING STUDS USED TO RETAIN THE FIXED PANEL COVER CAN FATIGUE.
Read full bulletin
THIS COULD RESULT IN THE FORWARD CHASSIS FAIRING PANEL BECOMING LOOSE AND RATTLING.
HVAC & Climate
4 bulletinsInformation Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...
Read full bulletin
A/C compressor.
Fix as Fail HVAC system may demonstrate inadequate temperature control, be stuck in defrost mode, or have intermittent...
Read full bulletin
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.
Read full bulletin
THIS WILL CAUSE THE HVAC SYSTEM TO ACT ERRATICALLY OR CONSTANTLY TURN ON AND OFF.
KENWORTH:PACCAR COMPANY: ESPAR SLEEPER HEATERS OVERHEATING, FREQUENTLY.
Read full bulletin
MODELS T680/880. *LJ
Lighting
3 bulletinsInformation only - Customer installed inverters may be wired incorrectly.
Fix-As-Fail - A U1548 fault code is present in the DAVIE log file, with no fault lamp illuminated or other obvious...
Read full bulletin
symptoms.
NON-SAFETY CAMPAIGN: WATSON & CHALIN LIFT AXLE FRAME BRACKETS WITH SLOTTED LOWER MOUNTING HOLES MAY EXHIBIT CRACKING...
Read full bulletin
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.
Brakes
2 bulletinsCertain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume...
Read full bulletin
requirements per FMVSS/CMVSS 121 Air Brake Systems. This bulletin will be updated when repair parts and procedures are available.
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
Infotainment
2 bulletinsNav+HD MP3 reboot update ane features enable.
FIX-AS-REQUESTED - NAV+ HD SOFTWARE UPDATE FOR RANDOM REBOOT FIX AND MP3 FEATURES ENABLED.
Pre-Delivery & Maintenance
2 bulletinsInformation Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke...
Read full bulletin
Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
Non-Safety Campaign - OBD modem is unable to communicate to telematics systems.
Suspension
2 bulletinsFix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
Transmission
1 bulletinFix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator...
Read full bulletin
(LCA) fault codes leading to possible LCA hardware replacement.
Software & Calibration
1 bulletinInformation Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer.
Read full bulletin
The issue can be temporarily resolved using any one of the included procedures.
Fuel System
1 bulletinKENWORTH: A NEW SOFTWARE IS AVAILABLE FOR THE DRIVER PERFORMANCE ASSISTANT (DPA) FOR RETROFITTING TRUCKS TO IMPROVE...
Read full bulletin
FUEL ECONOMY AND HAVE MAINTENANCE COSTS REDUCED. MODEL T680, 880. *PE