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Model year

2026 Kenworth T680

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recalls (2)Complaints (0)Investigations (0)Bulletins (50)
Recall campaigns covering this model year275k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 monthsOpenWindow has not closed yet
Complaints over time

Complaints about the 2026 Kenworth T680 by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

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Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

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Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

2 recall campaigns cover the 2026 Kenworth T680

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2026 Kenworth T680
CampaignFiledSubjectComponentVehiclesRemedy
25V-569Sep 2, 202515-inch digital display may fail to display warning lights or vehicle speedElectrical system18,332Software update
25V-436Jun 26, 2025Tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intendedLighting56,260Software update
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2026 Kenworth T680

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    All investigations
    Service bulletins

    50 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

    • 02-206 Oct 1, 2026 · Service Bulletin/Repair Instructions
      Certain T680 Next Gen short hood chassis may be missing a bolt in the forward fairing.
    • 32-014 Sep 23, 2026 · Service Bulletin/Repair Instructions
      This bulletin, the troubleshooting procedure, and the BMS Troubleshooting Checklist have been updated to show that the Autometer tool test results can be used in place of the Midtronics tool test results for fulfilling service and warranty requirements.
    • P001 Sep 11, 2026 · Service Bulletin/Repair Instructions
      "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
    • E328 Sep 11, 2026 · Service Campaign
      ​​Certain chassis with CARB 2024 compliant MX-13 engines must have the PEU wiring harnesses updated. The original wiring and fuse are insufficient for electrical system operation and protection.
    • 01-094 Sep 4, 2026 · Service Bulletin/Repair Instructions
      [SmartAir / KIMS] A/C systems may shut down prematurely when voltage levels drop below a certain threshold.
    • E343 Sep 5, 2026 · Service Bulletin/Repair Instructions
      An exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines.
    • P001 Sep 3, 2026 · Service Bulletin/Repair Instructions
      "KW: The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 8 chassis. The total c…
    • P001 Aug 27, 2026 · Service Bulletin/Repair Instructions
      "KW: The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 8 chassis. The total c…
    • 43-089 Aug 21, 2026 · Service Bulletin/Repair Instructions
      This optional software update is expected to be available after 08/28/2026.
    • P001 Aug 19, 2026 · Service Bulletin/Repair Instructions
      "PB: The chassis list has been updated to include 11 chassis. The total chassis count is now 122. KW: The chassis list has been updated to include 3 chassis. The total chassis count is now 52."
    • P001 Aug 13, 2026 · Service Bulletin/Repair Instructions
      "KW -The chassis list has been updated to include 2 chassis. Total chassis count is now 49. PB - The chassis list has been updated to include10 chassis. The total chassis count is now 111."
    • 24KWC/24PBC Aug 13, 2026 · Service Bulletin/Repair Instructions
      Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
    • 43-089 Aug 13, 2026 · Service Bulletin/Repair Instructions
      This optional software update is expected to be available in late August 2026 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This bulletin will be updated when the software is ready. This update provides customers with addi…
    • 43-089 Aug 13, 2026 · Service Bulletin/Repair Instructions
      This optional software update is expected to be available in late August 2026 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This bulletin will be updated when the software is ready. This update provides customers with addi…
    • 46-029 Aug 13, 2026 · Service Bulletin/Repair Instructions
      When DAVIE version 26.21.2 is used to update the VECU3 to software version 3.4.46.0, the VECU3 5071 component group may display as --- after programming.
    • 14-037 Aug 11, 2026 · Service Campaign
      An improved transmission bracket is now available for replacement on certain chassis equipped with a PACCAR TX-12 transmission, featuring a more durable design for enhanced long-term performance.
    • 43-089 Aug 1, 2026 · Service Bulletin/Repair Instructions
      This optional software update is expected to be available on 08/07/26 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks before a DEF-related derate oc…
    • 43-089 Jul 21, 2026 · Service Bulletin/Repair Instructions
      An optional software update is expected to be available on or after 07/31/26 for chassis equipped with EPA 2024 engine model year (EMY) 2024-2026 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks bef…
    • 41-029 Jul 18, 2026 · Service Bulletin/Repair Instructions
      Incorrect air filters may be inadvertently installed in certain chassis equipped with under-hood Donaldson air filter housings.
    • 99-052 Jul 2, 2026 · Service Bulletin/Repair Instructions
      There is an update to the Base Emissions Warranty Limits table [PR1.1]and general certification information in certain Engine Model Year (EMY) 2026 MX-11 and MX-13 Operator’s Manuals.
    • P001 Jun 30, 2026 · Service Campaign
      Leveraging PACCAR’s advanced Prognostic prediction algorithms, certain PACCAR MX-11 and MX-13 EMY 2024-2026 engines will receive proactive replacement instructions for the PM sensor to maximize uptime and maintain optimal performance.
    • T024 Jun 16, 2026 · Service Bulletin/Repair Instructions
      "KW & PB: New software is available for download. The DAVIE4 cache must be cleared before attempting to reprogram a chassis that is experiencing problems to ensure the latest version of software is installed. Follow all steps in the attached procedures befo…
    • T-024 Jun 13, 2026 · Service Bulletin/Repair Instructions
      The repair procedure has been updated to include diagnostic steps.
    • 46-027 Jun 13, 2026 · Service Bulletin/Repair Instructions
      The currently published HD BEV Chassis with PACCAR EPowertrain Service (Built After 1/14/2026) de-energizing Procedures on ServiceNet cannot be utilized for certain pre-production Battery Electric Vehicle (BEV) chassis.
    • 27-012 Jun 10, 2026 · Service Bulletin/Repair Instructions
      The attachment for Eaton bulletin TAIB-1015 has been updated to the latest version to improve process flow.
    • R2601 May 29, 2026 · Service Bulletin/Repair Instructions
      Updated primary and/or secondary chassis modules for certain pre-production Kenworth chassis are now available for installation.
    • 27-012 May 26, 2026 · Service Bulletin/Repair Instructions
      KW: A Transmission Control Module (TCM) software update is now available for certain T680, T880, and W990 chassis with Eaton Endurant transmissions, TCM software version R5.5 or later and an AT5 controller, where the TASPS fails. Please see the Eaton bullet…
    • T024 May 26, 2026 · Service Bulletin/Repair Instructions
      KW: A Transmission Control Module (TCM) software update is now available for certain T280, T380, T480, T680, T880, and W990 chassis with PACCAR TX-12 and TX-18 transmissions, TCM software version R5.5 or later and an AT5 controller, where the TASPS fails. …
    • 02-177 May 6, 2026 · Service Bulletin/Repair Instructions
      Troubleshooting procedures for 2.1m cab power windows are now available.
    • 43-087 May 5, 2026 · Service Bulletin/Repair Instructions
      (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
    • 41-024 May 1, 2026 · Service Bulletin/Repair Instructions
      Procedures have been updated to include additional truck models in the service intervals table.
    • 43-087 Apr 4, 2026 · Emissions
      EMY21-25 GHG Label Replacement (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation.
    • 43-087 Apr 28, 2026 · Service Bulletin/Repair Instructions
      (KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation. (PB) Certain Model 367 / 389 / 567 / 579 / 589 have updated GHG labels available for order and installation.
    • 45-070 Apr 17, 2026 · Service Bulletin/Repair Instructions
      The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
    • 14-034 Apr 16, 2026 · Service Bulletin/Repair Instructions
      Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
    • E340 Apr 10, 2026 · Emissions
      KW Certain vehicle model year 2026 Kenworth chassis equipped with EMY2025 PACCAR MX engines require an amended engine label. The engine label is now available for order and installation. PB Certain vehicle model year 2026 Peterbilt chassis equipped with EMY…
    • 36-010 Apr 8, 2026 · Service Campaign
      Bendix Fusion Camera Parameter Correction - (KW) Certain Kenworth T680 chassis may have certain software parameters out of specification. Certain out of specification parameters may result in customer dissatisfaction. (PB) Certain Peterbilt Model 579 chassi…
    • E326 Apr 1, 2026 · Emissions
      EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
    • 34-100 Mar 28, 2026 · Service Campaign
      Halogen Headlamp Operation -Activating the Flash to Pass system on certain [Kenworth / Peterbilt] vehicles may cause one headlamp to deactivate.
    • 37-004 Mar 27, 2026 · Service Campaign
      PACCAR MX-13 VECU3 Software Update - Certain heavy-duty chassis equipped with a PACCAR MX-13 engine are eligible for a Vehicle Electronic Control Unit (VECU3) software update.
    • 43-083 Mar 21, 2026 · Service Bulletin/Repair Instructions
      Exhaust Stack Isolators - Early wear of the polyurethane exhaust stack isolators may occur on certain Kenworth chassis due to excessive heat. Early wear of the polyurethane exhaust stack isolators may occur on certain Peterbilt chassis due to excessive heat.
    • 41-024 Mar 11, 2026 · Service Bulletin/Repair Instructions
      Engine Air Filter Servicing UPDATE - Procedures are available to support the maintenance, service intervals, and intake system inspection process for all engine air intake system components.
    • E326 Mar 6, 2026 · Emissions
      EPA17-24 MX-13 Fuel Injector Connector - This bulletin has been revised to include EPA24 PACCAR MX-13 engines.
    • 45-070 Jan 31, 2026 · Service Bulletin/Repair Instructions
      Procedure pictures updated for clarity. When troubleshooting Cummins X15 fault codes 555 or 556, follow this additional testing, inspection, and documentation procedure to help identify the root cause of dusted engines. This is not a stand-alone process bu…
    • 46-024 Jan 30, 2026 · Service Bulletin/Repair Instructions
      CARB Label Procedure Update The repair procedure removes the aftermarket change request, adds GHG label inspection, and directs dealers to open a TCS365 case to order new labels. Warranty codes for inspection and label replacement have been updated. Cert…
    • 25PACF Dec 23, 2025 · Service Bulletin/Repair Instructions
      Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013 / Q21-1157-002-002 / Q21-1157-004-004 / Q21-1157-006-006 / Q21-1157-009-009. See attached Pa…
    • 46-024 Dec 31, 2025 · Service Bulletin/Repair Instructions
      Certain Battery Electric Vehicles that are subject to California Air Resources Board (CARB) regulations have Vehicle Emissions Control Information (VECI) labels that are missing the CARB Enhanced EV and FCEV Statement.
    • 27-011 Dec 18, 2025 · Service Bulletin/Repair Instructions
      A transmission control module (TCM) software update is now available for certain T680 / T880 / W900 / W990 chassis with Eaton Endurant transmissions running TCM software version 5516372, where the PTO fails to operate or engage. Please see the attached Eato…
    • 25PACG Oct 10, 2025 · Service Bulletin/Repair Instructions
      The 15-inch digital display in certain model year 2024–2026 Kenworth chassis may enter recovery mode (blue wrench screen) without prior indication. The screen becomes non-responsive and may result in non-compliance with FMVSS/CMVSS 101 (Controls and Display…
    • 25PACF Aug 1, 2025 · Service Campaign
      Procedures are now available for Phase 1 chassis equipped with Internal Combustion Engines (ICE) and Vehicle Electronic Control Unit (VECU) part number Q21-1157-013-011 / Q21-1157-013-013. Parts and procedures for Phase 2 chassis will be available at a late…
    Source: NHTSA manufacturer communications files.
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