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Service bulletins for the 2018 Kenworth T880

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

76 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
43-0632020-01-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Emissions Campaign – The Engine Overspeed lamp may illuminate during a smoke opacity test. A software update is available to resolve the issue.
01-0712019-12-04. Service bulletin. ENGINE AND ENGINE COOLING. 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.
01-0752019-12-04. Service bulletin. ENGINE AND ENGINE COOLING. Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB43-0622019-10-04. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Information Only – This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
44-0302019-09-05. Service bulletin. FUEL SYSTEM, DIESEL. Fix-As-Fail - Nylon fuel lines may be too short, potentially resulting in a cracked or loose, low pressure fuel fitting at the engine or fuel tank, which may introduce air into the fuel system resulting in a hard-to-start or no-start condition.
42-0562019-09-05. Service bulletin. ENGINE AND ENGINE COOLING. Fix-As-Fail -“ Composite fittings used in the cooling system may crack, resulting in coolant leaks. Brass fittings are available to replace the composite fittings.
42-0582019-09-05. Service bulletin. ENGINE AND ENGINE COOLING. Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
01-0732019-09-05. Service bulletin. EQUIPMENT; EQUIPMENT:APPLIANCE:AIR CONDITIONER. 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.
23-0032019-08-02. Service bulletin. POWER TRAIN. Fix as Fail: Vehicles with Eaton Ultrashift Plus or Fuller Advantage Automated transmissions may display fault codes and/or have clutch release problems due to broken clutch levers. Resolution is to replace the clutch.
34-0772019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL. Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
02-1472019-03-18. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Fix-As-Fail ? 2.1m Sunvisor clips may be cracked or broken.
34-0682019-03-18. Service bulletin. ELECTRICAL SYSTEM. Non-Safety Campaign: Vehicles equipped with Cummins ISX12 engines may have missing line heater fuses or relays.
TIB23-0022019-03-11. Service bulletin. POWER TRAIN. Campaign: The clutch may not shift appropriately or the clutch may not disengage due to lack of torque on the clutch bolts.
02-1432018-09-24. Service bulletin. STRUCTURE. Information Only: SBFA T880 may have a structural failure involving only the center section of the hood, including hood strut mount failures.
56-0022018-09-24. Service bulletin. POWER TRAIN. Non-Safety Campaign - PTOs in certain T680/T880 chassis equipped with PACCAR or an Eaton Endurant Transmission may not contain the wiring required to activate the PTO accessory.
43-0562018-08-13. Service bulletin. EQUIPMENT. Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
03-0622018-08-13. Service bulletin. ELECTRICAL SYSTEM. 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.
43-0562018-08-06. Service bulletin. EQUIPMENT:OTHER:LABELS; TIRES. Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
03-0622018-08-06. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT ADAPTIVE/MOBILITY. 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.
32-0102018-05-21. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Information only - Customer installed inverters may be wired incorrectly.
TT81362018-04-16. Service bulletin. POWER TRAIN. Tip for technicians to avoid a conflict with the engine controller when re-programming the transmission
03-0632018-02-12. Service bulletin. ELECTRICAL SYSTEM. Fix-As-Fail ? Some vehicles may set a ?Cluster Not Detected? error message when connecting to the CECU with ESA.
440282017-10-21. Service bulletin. 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.
34-0602017-10-12. Service bulletin. ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL; TRAILER HITCHES. 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.
43-0482017-10-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.