AutoStatsIQ
Data through Oct 2026
Model year

2021 Kenworth W990

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

Recalls (5)Complaints (0)Investigations (0)Bulletins (53)
Recall campaigns covering this model year5293k 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 W990 by year filed

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

No campaigns match these filters.Reset filters
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

5 recall campaigns cover the 2021 Kenworth W990

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 W990
CampaignFiledSubjectComponentVehiclesRemedy
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
21V-906Nov 19, 2021Work brake (winch brake) may unintentionally disengage the service brakes during winching operations, causing the vehicle to rollElectrical system908Software update
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-506Aug 26, 2020Axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nutsPowertrain1,097Part replacement
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 Kenworth W990

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

    53 manufacturer communications cover this model year

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

    • 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.
    • 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.
    • 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…
    • 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…
    • 02-174 Aug 30, 2023 · Service Bulletin/Repair Instructions
      Certain W990 hood-mounted engine air intake covers could loosen and rattle or separate from vehicle. New air intake covers are available with improved retention. Installation of new covers requires hood modification. Procedures are available for replacement…
    • 02-184 Aug 30, 2023 · Service Bulletin/Repair Instructions
      Certain W990 chassis may have hood hardware that could loosen. Additionally, some chassis may have hood rests that are too rigid causing excessive noise. Hood attaching hardware and hood rests will be replaced as necessary.
    • 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…
    • 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…
    • 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.
    • 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…
    • E286 Mar 23, 2022 · Service Bulletin/Repair Instructions
      Engine Model Year 2021B and later PACCAR MX-11 and MX-13 Fuel Injector Adjustment During First C Service
    • 51-013 Feb 4, 2022 · Service Bulletin/Repair Instructions
      Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a prim…
    • E280 Dec 2, 2021 · Service Bulletin/Repair Instructions
      Non-Safety Campaign: Certain DC tools were incorrectly calibrated. The resulting torque issue could affect the EPA21 MX-11 and MX-13 Oil Pan and/or the Exhaust Manifold.
    • E282 Dec 17, 2021 · Service Bulletin/Repair Instructions
      Information Only: Due to differences between the PACCAR MX-11 or MX-13 2021A and 2021B engines, technicians must be able to identify which of these engines are in a chassis.
    • 43-071 Sep 21, 2021 · Service Bulletin/Repair Instructions
      Fix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue op…
    • 02-168 Sep 20, 2021 · Service Bulletin/Repair Instructions
      Information Only - Rear axle Quarter Fenders with less than two inches of clearance between the top of the quarter fender and the bottom of the trailer/equipment are susceptible to damage. The lack of clearance could result in cracked/broken quarter fenders…
    • 21-KWE Aug 17, 2021 · Service Bulletin/Repair Instructions
      Safety Recall – Interim Notification - Certain Mahle HVAC control heads may have a soldering defect which may result in inoperative HVAC controls. Inoperative HVAC defrost may reduce driver visibility, increasing the risk of an accident. This bulletin will …
    • 21KWD Jun 14, 2021 · Service Bulletin/Repair Instructions
      Information Only – C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast the end of the 2021 calendar year without particulate matter (PM) sensors installed .
    • 02-160 Feb 10, 2021 · Service Bulletin/Repair Instructions
      Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
    • 32-017 Feb 25, 2021 · Service Bulletin/Repair Instructions
      Non-Safety Campaign – The batteries may drain quickly due to the VECU not going to sleep. Updated VECU software is available to resolve the issue.
    • 32-014 Oct 12, 2020 · Service Bulletin/Repair Instructions
      Fix-As-Fail – The Battery Management System (BMS) may report the incorrect battery condition. Additional diagnostics are available to correctly determine and repair the root cause of the issue.
    • A003 Oct 9, 2020 · Service Bulletin/Repair Instructions
      PACCAR has determined that all Set Forward Front Axle (SFFA) models with the PACCAR 20K front steer axle and wide-based tires have the potential to experience a shimmy or shake in the front axle. Wide-based tires include any series tires with widths of 385 …
    • 32-015 Jun 8, 2020 · Service Bulletin/Repair Instructions
      Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
    • 32-016 Mar 17, 2020 · Service Bulletin/Repair Instructions
      Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
    • 02-157 Feb 26, 2020 · Service Bulletin/Repair Instructions
      Fix-As-Fail: The seal on T680, T880, and W990 windshields may be delaminated. Replace the windshield and encapsulated seal to resolve the issue.
    • 36-005 Jan 31, 2020 · Service Bulletin/Repair Instructions
      Information Only - Driver Performance Assistance (DPA) Coasting and Braking Scores Not Incrementing, Stays at 50%. The average score will never change nor create driver assistance popups based upon driverâ™s actions. A future software update will resolve th…
    Source: NHTSA manufacturer communications files.
    About service bulletins