Technical Service Bulletins

Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.

172,063 Unique Bulletins
4,686,952 Total Records
879 Vehicle Makes
1955–2025 Year Range
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Showing 440 bulletins for KENWORTH

34-063 Feb 9, 2018
KENWORTH — KENWORTH
121300 EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH
Fix-As-Fail - Low Beam Headlamp Bulb Diagnosis (Inspect Bulb and Connector) (Repair procedure)
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18-008 Jan 22, 2018
KENWORTH — T170, T270, T370, T440, T470, T660, T680, T800, T880, W900 (2014–2017) — 80 vehicle combinations
200000 WHEELS
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
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7-17 Jan 22, 2018
KENWORTH — 210, 220, 320, 325, 330, 337, 348, 357, 365, 367, 378, 379, 382, 384, 385, 386, 387, 388, 389, 389G, 389K, 567, 579, 587, 963, C500, C540, C550, K170, K270, K300, K370, MX-11, MX-13, T170, T270, T370, T400, T440, T470, T660, T680, T700, T800, T880, W900 (2014–2017) — 322 vehicle combinations
200000 WHEELS
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
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03-063 Jan 17, 2018
KENWORTH — T680, T880 (2017–2018) — 4 vehicle combinations
110000 ELECTRICAL SYSTEM
Fix-As-Fail ? Some vehicles may set a ?Cluster Not Detected? error message when connecting to the CECU with ESA.
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43-051 Jan 9, 2018
KENWORTH — T660, T680, T800, T880 (2017) — 4 vehicle combinations
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Campaign ? The lower elbow of the exhaust system does not have a drain hole, allowing water to collect in the pipes and overflow into the aftertreatment canister.
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02-141 Dec 13, 2017
KENWORTH — T680 (2017)
350000 EQUIPMENT
Informational Only - Install proper ? in.?20?? in. long fastener for all license plate installations on T680 with Aero Bumpers.
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26-029 Nov 21, 2017
KENWORTH — T680, T800, T880, W900 (2015–2016) — 8 vehicle combinations
110000 ELECTRICAL SYSTEM
Fix-As-Fail - A U1548 fault code is present in the DAVIE log file, with no fault lamp illuminated or other obvious symptoms.
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27-007 Nov 20, 2017
KENWORTH — T680, T880 (2017) — 2 vehicle combinations
102000 POWER TRAIN:MANUAL TRANSMISSION
Informational Only ? False Fault Codes may become active with column mounted shifter and Eaton Automated Manual Transmissions (AMT)
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13-047 Oct 25, 2017
KENWORTH — K270, K370 (2016) — 2 vehicle combinations
042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Non-Safety Campaign ? The lower nuts of the foot brake valve may not have been tightened correctly.
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34-060 Sep 28, 2017
KENWORTH — T680, T880 (2012–2018) — 28 vehicle combinations
114005 ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
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.
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43-048 Sep 27, 2017
KENWORTH — T680, T700, T880 (2007–2018) — 25 vehicle combinations
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
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34-058 Jul 13, 2017
KENWORTH — C500, T800 (2016–2017) — 6 vehicle combinations
111000 ELECTRICAL SYSTEM:12V/24V/48V BATTERY
Non-safety Campaign: Some vehicles were equipped with a power fuse harness covered with an aluminum-faced tape in the battery box area.
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44028 Jun 2, 2017
KENWORTH — T880 (2018)
356000 EQUIPMENT ADAPTIVE/MOBILITY
Non-Safety Campaign: The return fuel fitting on the engine provides a narrow O-ring engagement area, which could lead to potential fuel leaks.
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51-010 Mar 13, 2017
KENWORTH — KENWORTH
350000 EQUIPMENT
FIX-AS-REQUESTED: NAV+ HD OVER-THE-AIR UPDATE
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01-070 Mar 9, 2017
KENWORTH — T680, T880 (2016–2017) — 4 vehicle combinations
354000 EQUIPMENT:MECHANICAL
FIX-AS-FAIL: KENWORTH T680/T880 HVAC PANEL AND TEMPERATURE MODE DOORS NOT FUNCTIONING PROPERLY
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45-055 Feb 3, 2017
KENWORTH — KENWORTH
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
INFORMATION ONLY ? AN ISSUE EXISTS WITH THE COMMUNICATION BETWEEN CUMMINS RAPIDSERVE? WEB AND PACCAR SERVICE INFORMATION RECORD (SIR).
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41-016 Dec 22, 2016
KENWORTH — T680, T880 (2013–2015) — 12 vehicle combinations
060000 ENGINE (PWS)
NON-SAFETY CAMPAIGN: REPLACE THE MOLDED AIR INTAKE PIPE, WHICH CAN CRACK AND ALLOW ROAD DEBRIS INTO THE ENGINE. DEBRIS ENTERING THROUGH THE INTAKE MAY CAUSE SEVERE ENGINE DAMAGE.
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01-068 Nov 4, 2016
KENWORTH — T680, T880 (2011–2018) — 16 vehicle combinations
350000 EQUIPMENT
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.
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01-067 Nov 4, 2016
KENWORTH — T270, T370 (2017) — 2 vehicle combinations
350000 EQUIPMENT
NON-SAFETY CAMPAIGN: HVAC WATER VALVES MAY HAVE BEEN BUILT WITH THE WRONG METERING VALVE. . THIS MAY CAUSE THE VEHICLE HVAC SYSTEM TO RUN AT FULL HOT OR FULL COLD REGARDLESS OF THE SETTING LEVEL.
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04-017 Oct 24, 2016
KENWORTH — T680 (2013–2016) — 4 vehicle combinations
350000 EQUIPMENT
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.
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E162 Sep 30, 2016
KENWORTH — MX-11, T680, T880, W900 (2017) — 12 vehicle combinations
060000 ENGINE AND ENGINE COOLING
Incorrectly sized bolts may allow the venturri support bracket to vibrate.
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816-3CustLtr Sep 26, 2016
KENWORTH — 330, CLASS 6, CLASS 7, CLASS 8, COE SERIES, CONVENTIONAL SERIES, K100C, KENWORTH, MX-11, MX-13, PACCAR, PETERBILT, T2000 — 13 vehicle combinations
150000 SEAT BELTS
Seatbelt is too long and may not fully retract.
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816-3 Sep 26, 2016
KENWORTH — 330, CLASS 6, CLASS 7, CLASS 8, COE SERIES, CONVENTIONAL SERIES, K100C, KENWORTH, MX-11, MX-13, PACCAR, PETERBILT, T2000 — 26 vehicle combinations
150000 SEAT BELTS
Seatbelt is too long and may not fully retract.
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02-136 Sep 22, 2016
KENWORTH — T680, T880 (2016–2017) — 8 vehicle combinations
160000 STRUCTURE
Sleeper roof panels separating.
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03-054 Sep 16, 2016
KENWORTH — 330, CLASS 6, CLASS 7, CLASS 8, COE SERIES, CONVENTIONAL SERIES, K100C, KENWORTH, MX-11, MX-13, PACCAR, PETERBILT, T2000 — 13 vehicle combinations
350000 EQUIPMENT
CECU service manual update.
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