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Service bulletins for the 2016 Kenworth T680

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.

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

By type

By component

By trouble code

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
02-1602021-03-10. Service bulletin. VISIBILITY; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
51-0092021-02-01. Service bulletin. STRUCTURE; EQUIPMENT. Predictive Cruise control (PCC) incomplete assembly and programming.
51-0082021-02-01. Service bulletin. EQUIPMENT. T680 predictive cruise control(PCC) incompatibility with cummins engine.
51-0072021-02-01. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL. Nav+HD MP3 reboot update ane features enable.
02-1362021-01-25. Service bulletin. STRUCTURE; EQUIPMENT. Sleeper roof panels separating.
26-0372021-01-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. 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.
32-0162020-04-03. Service bulletin. EQUIPMENT. Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
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).
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.
03-0702019-06-11. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT ADAPTIVE/MOBILITY. 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.
34-0772019-05-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT:ELECTRICAL. Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
34-0722019-01-07. Service bulletin. EQUIPMENT. Information: J1939 CAN BUS Best Practices
43-0562018-08-13. Service bulletin. EQUIPMENT. Non-Safety Campaign- Incorrect GHG emissions identifier label for the tire classification listed on printed label.
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.
01-0702017-04-10. Service bulletin. EQUIPMENT:MECHANICAL. FIX-AS-FAIL: KENWORTH T680/T880 HVAC PANEL AND TEMPERATURE MODE DOORS NOT FUNCTIONING PROPERLY
01-0682017-02-18. Service bulletin. 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.
51-0082017-02-18. Service bulletin. EQUIPMENT. NON-SAFETY CAMPAIGN - INCORRECT PREDICTIVE CRUISE CONTROL (PCC) SPEED SIGNAL ON CUMMINS EQUIPPED T680 VEHICLES.
04-0172017-02-17. Service bulletin. 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.
51-0062017-02-17. Service bulletin. EQUIPMENT. 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.
TIB-32-0082015-08-25. Service bulletin. ENGINE; EQUIPMENT. 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

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