AutoStatsIQ
Data through Oct 2026
Model year

2021 Kenworth T680

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

Recalls (7)Complaints (0)Investigations (0)Bulletins (82)
Recall campaigns covering this model year7295k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 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.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

7 recall campaigns cover the 2021 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 2021 Kenworth T680
CampaignFiledSubjectComponentVehiclesRemedy
25V-181Mar 24, 2025High voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive powerElectrical system238Software update
24V-915Dec 9, 2024Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioningElectrical system220,764Software update
24V-190Mar 20, 2024Right-hand gear shifter stalk connectors may have been improperly crimped, resulting in a loss of communicationPowertrain70,509Part replacement
24V-145Feb 23, 2024Air tanks have an insufficient volume of air for the brake systemBrakes936Repair or modification
21V00N000Dec 29, 2021Methane detection system will not function if the system loses powerElectrical system1,107Not stated
21V-080Feb 17, 2021Capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detachEngine and cooling132Repair or modification
20V-593Sep 28, 2020Brake systems were manufactured with a standard rear-brake ABS modulator valve instead of a quick release valve, which may exceed the intended…Brakes1,416Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 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

    82 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

    • 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.
    • 9-049 Sep 23, 2026 · Service Campaign
      Certain Kenworth EMY 2022 T680, T880 and W990 chassis may not contain an EAS operator’s manual in the vehicle’s glovebox literature packet.
    • 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."
    • 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.
    • 24KWL/PBL Aug 13, 2026 · Service Bulletin/Repair Instructions
      The verbiage in the Introduction section has been updated.
    • 43-088 Aug 13, 2026 · Service Bulletin/Repair Instructions
      The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail Injection 2 (PCI2) software verification.
    • 43-088 Jul 21, 2026 · Service Bulletin/Repair Instructions
      This optional software update is now available for chassis equipped with EMY 2021B-2023 PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service their trucks before a DEF-related derate occurs. The software is being off…
    • 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.
    • E316 Jul 10, 2026 · Service Bulletin/Repair Instructions
      The Condition, Chassis Affected, Service Action, Warranty, and Procedure sections have been updated to include the latest prognostics bulletin verbiage.
    • 43-088 Jul 7, 2026 · Service Bulletin/Repair Instructions
      "The software is not yet available. The bulletin will be updated when more information is available."
    • 43-088 Jun 29, 2026 · Service Bulletin/Repair Instructions
      "An optional software update will be available on 07/06/2026 for chassis equipped with EMY 2021B-2023PACCAR MX-11 and MX-13 engines. This update provides customers with additional time to service theirtrucks before a DEF-related derate occurs. The software …
    • CE030 Jun 24, 2026 · Warranty Program/Extension
      "KW & PB 14 fuel injector part numbers (seven for MX-11 and seven for MX-13 engines) have been added to this warranty policy."
    • 43-080 Jun 3, 2026 · Service Bulletin/Repair Instructions
      "KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note …
    • E311 Jun 6, 2026 · Service Bulletin/Repair Instructions
      The PACCAR Powertrain Prognostics Webcast video link has been removed. It will be included with updated information at a later date.
    • E311 May 18, 2026 · Service Bulletin/Repair Instructions
      Kenworth - The Warranty section has been updated to include Peterbilt-specific SRT codes for cross-division repair filing.
    • 02-177 May 6, 2026 · Service Bulletin/Repair Instructions
      Troubleshooting procedures for 2.1m cab power windows are now available.
    • 41-024 May 1, 2026 · Service Bulletin/Repair Instructions
      Procedures have been updated to include additional truck models in the service intervals table.
    • 42-064 Apr 30, 2026 · Service Bulletin/Repair Instructions
      Fix-as-Fail On certain Kenworth T680 chassis equipped with PACCAR MX-13 engines, wiring to the Horton LCX230 crank-mounted fan drive may experience a short due to chafing or water ingress, affecting fan drive operation.
    • 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.
    • 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.
    • 01-090 Mar 28, 2026 · Service Bulletin/Repair Instructions
      Bulletin Update 03/02/2026 - A Meritor OnTrac case submission is required prior to repairs being completed. Failure to do so may result in warranty claim denial. See the procedure section for more details.
    • E335 Mar 25, 2026 · Emissions
      Expiration Date Format Update - Certain EPA21 compliant PACCAR MX-13 engines were built with intake valve springs that could fail. This failure can cause significant damage to the engine. New intake valve springs will be installed.
    • 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.
    • 24PBE_KWE Feb 11, 2026 · Service Bulletin/Repair Instructions
      The Parts section has been updated to clarify that freight charges for safety recall orders should not be passed on to the end customer.
    • 24KWE / 24PBE Jan 31, 2026 · Service Bulletin/Repair Instructions
      The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereb…
    • 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…
    • 24PBE_24KWE Jan 13, 2026 · Warranty Program/Extension
      24PBE_24KWE RH Shift Stalk Update Warranty section has been updated with revised verbiage for picture requirements.
    • 24KWE/24PBE Dec 24, 2025 · Emissions
      The parts section has been updated for clarity. The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicl…
    • 24PBE/KWE Dec 16, 2025 · Warranty Program/Extension
      The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, ther…
    • 43-076 Dec 31, 2025 · Service Bulletin/Repair Instructions
      Certain vehicle model years 2020-2025 K270, K370, T270, T280, T370, T380, T480, T680, T880, W900 chassis have updated Greenhouse Gas (GHG) labels available for installation.
    • 24KWE Nov 26, 2025 · Service Campaign
      The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereb…
    • 24KWD Oct 28, 2025 · Service Bulletin/Repair Instructions
      SAFETY RECALL Additional chassis have been included. The chassis list has been updated. Certain T370 / T440 / T470 / T480 / T660 / T680 / T800 / T880 / W900 / C500 chassis may be equipped with air tank reservoirs that have less than twelve times the combine…
    • E311 Aug 20, 2025 · Other
      Condition, Chassis Affected, and Warranty sections updated with the following verbiage “E311 must be flagged and open in Service Information Record (SIR) at the time of RO open date to qualify.” Also, “Through Standard Warranty or any applicable active Exte…
    • 25KWC Apr 9, 2025 · Service Bulletin/Repair Instructions
      Safety Recall – Interim Notification Certain Kenworth T680E Battery Electric Vehicle (BEV) chassis equipped with certain Accelera High VoltageInterlock Loop (HVIL) circuit configurations may experience a sudden loss of high voltage power with unintended ope…
    • 25WC/PBC - KW Apr 30, 2025 · Service Bulletin/Repair Instructions
      Safety Recall Certain Kenworth T680E Battery Electric Vehicle (BEV) chassis equipped with certain Accelera High VoltageInterlock Loop (HVIL) circuit configurations may experience a sudden loss of high voltage power with unintended opening of electrical cont…
    • 46-010 May 8, 2024 · Service Bulletin/Repair Instructions
      A software update is available for T680E Battery Electric Vehicles. This software update corrects certain issues with odometer and cold weather operation.
    • E316 May 21, 2024 · Service Campaign
      Campaign Certain PACCAR MX-13 engines contain bolts for the main bearing caps which may fail under certain conditions.
    • 04-024 Jun 1, 2024 · Service Bulletin/Repair Instructions
      Campaign Certain T680 Next Gen fairings may have a loose or missing bushing that allows the rear partial fairing to rattle during operation. Parts and procedures are available to replace the pin on the fairing (both sides) with a bolt/spacer combination to …
    • 24KWD Apr 9, 2024 · Service Bulletin/Repair Instructions
      Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air volume requirements per FMVSS/CMVSS 121 âAir Brake Systemsâ. This bulletin will be updated when repair parts and procedures are available.
    • 24KWE Mar 21, 2024 · Service Bulletin/Repair Instructions
      Safety Recall – INTERIM NOTIFICATION Parts are not currently available for this safety recall. This bulletin will be updated once repair parts are available. The right-hand shift stalk may have an improper wire harness terminal crimp within the wire harne…
    • E306 Oct 18, 2023 · Service Bulletin/Repair Instructions
      PACCAR MX-11 & MX-13 EPA2021 Fuel Filter Drain & Change Info Incorrect fuel filter drain and replacement procedures on EPA21 MX-11 and MX-13 engines can result in the following Debris and contaminants introduced into the high-pressure fuel system. Denial…
    • 36-008 Sep 11, 2023 · Service Bulletin/Repair Instructions
      Certain T680 Next Gen pre-production chassis are eligible to receive production-level software, dash switches, and driver information displays.
    • 04-022 Sep 1, 2023 · Service Bulletin/Repair Instructions
      Replacement fuel bezels are available for T680 Next Gen fairings. New bezels have updated attachments to prevent the bezel from becoming loose.
    • 45-065 Sep 1, 2023 · Service Bulletin/Repair Instructions
      Certain T680 Next Gen Cummins X15 have fan hub bracket hardware that is under torqued and could become loose and/or fail. Procedures are available to replace and properly torque the hardware.
    • 46-003 Aug 1, 2023 · Service Bulletin/Repair Instructions
      There is currently a repair procedure available for T680E and T880E chassis that will address issues caused by the previous BEV2 R5.00_002 software update. This repair involves replacement of the Bendix ABS control module with an updated version and a softw…
    • E290 Jun 28, 2023 · Service Bulletin/Repair Instructions
      FIX-AS-FAIL Updated procedures and claim filing information. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information
    • 43-072 Jun 2, 2023 · Service Bulletin/Repair Instructions
      Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will now be able to re…
    • 02-176 Apr 11, 2023 · Service Bulletin/Repair Instructions
      T680 NextGen A-pillar fairing adhesive is not properly securing the fairing to the A-pillar. Procedures are available to apply new adhesive to the A-Pillar fairing.
    • E290 Mar 31, 2023 · Service Bulletin/Repair Instructions
      FIX-AS-FAIL Updated procedures and claim filing information. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Refer to E300 for in-tank additive information
    • E300 Mar 31, 2023 · Service Bulletin/Repair Instructions
      PACCAR will reimburse customers for the local purchase of in-tank fuel additive for EPA2021 compliant MX engines. This is a one-time reimbursement. Only customers who have received E290 injector cleaning qualify for this reimbursement. See bulletin for limi…
    • 03-087 (E295) Feb 24, 2023 · Service Bulletin/Repair Instructions
      Certain Model Year 2021-2024 chassis with PACCAR MX engines and optional fuel filter restriction virtual gauge may display incorrect restriction levels. The virtual gauge will be temporarily disabled until a revised sensor strategy is developed.
    • E303 Jan 12, 2023 · Service Bulletin/Repair Instructions
      This campaign is the final opportunity to replace the oil filter screw cap to reduce occurrences of broken bypass valve tabs. Broken oil valve tabs can cause oil flow obstruction to critical engine parts, resulting in serious engine damage. Customers that d…
    • 41-023 Oct 18, 2022 · Service Bulletin/Repair Instructions
      Certain T680 NextGen air filter elements that may have been damaged due to excessive vibration were replaced without inspecting the air intake system for dust intrusion. Those vehicles must be inspected to assess possible progressive damage."
    • 45-064 Oct 18, 2022 · Service Bulletin/Repair Instructions
      Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to del…
    • E296 Aug 3, 2022 · Service Bulletin/Repair Instructions
      Kenworth is providing guidance for PACCAR MX Engine Composite Oil Pan leak troubleshooting to avoid over-repairs and to provide warrantable repair guidance. Oil leaks, if not repaired, can lead to severe engine damage.
    • 42-060 May 20, 2022 · Service Bulletin/Repair Instructions
      Fix As Fail - Certain chassis, equipped with an RCX230 Horton fan clutch and a Cummins X15 or ISX12N engine, are experiencing an adapter harness failure. This failure causes the fan to remain activated while the truck is in operation and may result in a che…
    • 22KWB May 10, 2022 · Service Bulletin/Repair Instructions
      Safety Recall â“ Interim Notification - The Dana D-Series front axle steer arm fasteners that attach the steer arm to the steering knuckle may fail, increasing the risk of a crash or injury. Repair information will be added when a repair procedure and parts…
    Source: NHTSA manufacturer communications files.
    About service bulletins