2019 Kenworth T680 Technical Service Bulletins

62 technical service bulletins (TSBs) are on record for the 2019 Kenworth T680. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10168703Nov 6, 2019Engine cooling. Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
• 10165583Sep 27, 2019Engine cooling, Equipment. 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).
• 10164378Aug 28, 2019Engine 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.
• 10164375Aug 23, 2019Engine cooling. Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
• 10164369Aug 2, 2019Equipment. 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.
• 10161188Jun 10, 2019Equipment, Latches, locks and linkages, Other or unknown. Non Safety Campaign: Holland Series FW17 fifth wheel handles may remain in an unlocked position when coupling to a parked trailer.
• 10161171Jun 10, 2019Engine, Exterior lighting. Non-Safety Campaign: Vehicles ordered with parameter for brake lights disabled when engine brake applied were built with this feature enabled.
• 10161167Jun 10, 2019Steering, Equipment. Non Safety Campaign: ZF (supplier) steering gear boxes may have a sealing plug not seated corrected allowing power steering fluid loss.
• 10161055May 21, 2019Transmission and drivetrain. Fix-As-Fail ? Intermittent throttle hesitation may be encountered after installing an optional PTO connector.
• 10159674Apr 8, 2019Equipment. Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
• 10154342Dec 5, 2018Electrical system. Fix-As-Fail: Vehicles equipped with VECU may activate frequently when LVD is enabled. Resolution is to update the CECU software.
• 10186164Jul 7, 2016Equipment. T680 predictive cruise control(PCC) incompatibility with cummins engine.

← All problems reported for the 2019 Kenworth T680