E324
Service Bulletin/Repair Instructions
The campaign expiration date has been changed to 03/01/2027.
Vehicle report
2016 KENWORTH T680
Service bulletins
56 bulletinsTechnical 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.
02-177
Service Bulletin/Repair Instructions
Troubleshooting procedures for 2.1m cab power windows are now available.
E304
Emissions
CARB Chassis Update - Chassis list updated with 5 KW and 31 PB additional chassis.
24KWD
Service Bulletin/Repair Instructions
Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 âÂÂAir Brake SystemsâÂÂ. This bulletin will be updated when repair parts and procedures are available.
43-072
Service Bulletin/Repair Instructions
Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will now be able to receive a replacement DEF sensor, DEF tank heater coolant control valve, and re-enabled DEF diagnostic software. Please note that chassis equipped with PACCAR PX engines will be eligible for this repair at a future date when software is available.
E279
Service Bulletin/Repair Instructions
E279: PACCAR MX-13/MX-11 Engine MY17 Software Incorrectly Sets DTC P1092 PACCAR MX-13/MX-11 Engine MY17 Software Incorrectly Sets DTC P1092 Emission Recall - PACCAR MX-13/MX-11 MY2017 software incorrectly sets DTC P1092, which could result in reduced available engine torque and/or engine protection mode. An engine software update is available that corrects the issue.
03-087 (E295)
Service Bulletin/Repair Instructions
Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.
E296
Service Bulletin/Repair Instructions
Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
43-071
Service Bulletin/Repair Instructions
Fix-As-Fail â 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.
21KWD
Service Bulletin/Repair Instructions
Information Only â C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast the end of the 2021 calendar year without particulate matter (PM) sensors installed .
E271
Service Bulletin/Repair Instructions
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system software related issues.
32-017
Service Bulletin/Repair Instructions
Non-Safety Campaign â 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 â 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 â Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
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.
13-054
Service Bulletin/Repair Instructions
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
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.
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.
32-016
Service Bulletin/Repair Instructions
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-085
Service Bulletin/Repair Instructions
Information Only â Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
32-013
Service Bulletin/Repair Instructions
Information Only: The AutoStart System Test does not recognize the hood opening and closing when running the test on a 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.
43-063
Service Bulletin/Repair Instructions
Emissions Campaign â The Engine Overspeed lamp may illuminate during a smoke opacity test. A software update is available to resolve the issue.
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.
01-071
Service Bulletin/Repair Instructions
Fix-As-Fail The evaporator core may crack in vehicles with the ISX-15 engine. An improved suction line has been released that removes stress transferred to the 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.
TIB43-062
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
Service Bulletin/Repair Instructions
Fix-As-Fail -ÃÂ 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.
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.
03-070
Service Bulletin/Repair Instructions
Fix as Fail: Vehicles built 11/30/15 to 7/18/16 may display an error message in the Service Advised display after updating CECU software.
34-077
Service Bulletin/Repair Instructions
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
34-064
Service Bulletin/Repair Instructions
Non-Safety Campaign: Vehicles may have a fuse installed in the PDC (Power Distribution Center) in a location unable to support the amperage.
34-072
Service Bulletin/Repair Instructions
Information: J1939 CAN BUS Best Practices
03-062
Service Bulletin/Repair Instructions
Fix-As-Fail: Bendix Wingman radars with ice/snow buildup on the optional PACCAR radar cover may experience false warnings and mild brake applications from the Wingman System.
43-056
Service Bulletin/Repair Instructions
Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
32-010
Service Bulletin/Repair Instructions
Information only - Customer installed inverters may be wired incorrectly.
63-008
Service Bulletin/Repair Instructions
Non-Safety Campaign - OBD modem is unable to communicate to telematics systems.
18-008
Service Bulletin/Repair Instructions
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
7-17
Service Bulletin/Repair Instructions
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
26-029
Service Bulletin/Repair Instructions
Fix-As-Fail - A U1548 fault code is present in the DAVIE log file, with no fault lamp illuminated or other obvious symptoms.
34-060
Service Bulletin/Repair Instructions
Non Safety Campaign: The circuit for the Trailer Hotline/Trailer Power may not be properly protected on Model T680/T880 vehicles equipped with this option.
43-048
Service Bulletin/Repair Instructions
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
51012
Service Bulletin/Repair Instructions
Fix-as-Fail: CECU3 software P30-1011-139 software has been released. This software update is not mandatory. This software requires MY2017 PCC software when installed on MY2015/2016 vehicles equipped with PCC.
01-070
Service Bulletin/Repair Instructions
FIX-AS-FAIL: KENWORTH T680/T880 HVAC PANEL AND TEMPERATURE MODE DOORS NOT FUNCTIONING PROPERLY
16-038
Service Bulletin/Repair Instructions
NON-SAFETY CAMPAIGN: WATSON & CHALIN LIFT AXLE FRAME BRACKETS WITH SLOTTED LOWER MOUNTING HOLES MAY EXHIBIT CRACKING 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.
01-068
Service Bulletin/Repair Instructions
FIX-AS-FAIL: AN INTERNAL ISSUE MAY CAUSE SOME HVAC MODE DOOR ACTUATORS TO FAIL. THIS WILL CAUSE THE HVAC SYSTEM TO ACT ERRATICALLY OR CONSTANTLY TURN ON AND OFF.
04-017
Service Bulletin/Repair Instructions
FIX-AS-FAIL: THE HEAT-STAKE MOUNTING STUDS USED TO RETAIN THE FIXED PANEL COVER CAN FATIGUE. THIS COULD RESULT IN THE FORWARD CHASSIS FAIRING PANEL BECOMING LOOSE AND RATTLING.
02-136
Service Bulletin/Repair Instructions
Sleeper roof panels separating.
27-026
Service Bulletin/Repair Instructions
Eaton ultrashift plus excessive engine over-speed lamp on.
51-007
Service Bulletin/Repair Instructions
Nav+HD MP3 reboot update ane features enable.
51-008
Service Bulletin/Repair Instructions
T680 predictive cruise control(PCC) incompatibility with cummins engine.
51-009
Service Bulletin/Repair Instructions
Predictive Cruise control (PCC) incomplete assembly and programming.
51-006
Service Bulletin/Repair Instructions
NON-SAFETY CAMPAIGN - CHASSIS BUILT WITH PRE-PRODUCTION QV/VV MODELS OF THE NAV+ HD SYSTEM HARDWARE ARE ELIGIBLE FOR REPLACEMENT. THIS DOES NOT AFFECT THE OPERATION OF THE VEHICLE.
43-047
Service Bulletin/Repair Instructions
NON-SAFETY CAMPAIGN - GREENHOUSE GAS (GHG) HIGH AMBIENT TEMPERATURE EIST OVERRIDE SETTING IS NOT AS CUSTOMER REQUESTED. THIS CAUSES THE VEHICLE TO SHUT DOWN AT 65 DEGREES INSTEAD OF 80 DEGREES. THIS CHANGE REQUIRES THAT THE GHG LABEL IN THE DOOR BE REPLACED.
TIB-32-008
Service Bulletin/Repair Instructions
KENWORTH: AN ULTRACAPACITOR ENGINE START MODULES (ESM), IN SOME TRUCKS, ARE NOT TREATED LIKE REGULAR BATTERY, DUE TO ELECTRICAL ENERGY STORAGE AND INTERNAL RESISTANCE IS EXTREMELY LOW AND ENERGY IS PROVIDED FASTER THAN BATTERY. MODEL T680, 880. NO YEARS LISTED. PE
TT-7484-EN
Service Bulletin/Repair Instructions
ALLISON TRANSMISSION: ON SOME TRUCKS, THE PUSH BUTTON SHIFT SELECTOR (PBSS) SKIPS OIL LEVEL READING AND GOES DIRECTLY TO PROGNOSTICS AND COULD BE MISSING WIRE 116 ON BULKHEAD OTHER SIDE. MODELS T680, T880, 579, 567. *PE UPDATED 2/1/16. *PE
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.