AutoStatsIQ
Data through Oct 2026
Model year

2021 Kenworth T800

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

Recalls (1)Complaints (0)Investigations (0)Bulletins (8)
Recall campaigns covering this model year1936 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 T800 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

One recall campaign covers the 2021 Kenworth T800

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 T800
CampaignFiledSubjectComponentVehiclesRemedy
24V-145Feb 23, 2024Air tanks have an insufficient volume of air for the brake systemBrakes936Repair or modification
Source: NHTSA ODI recalls file.
Look up a VIN at NHTSA
Owner complaints

What owners reported about the 2021 Kenworth T800

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

    8 manufacturer communications cover this model year

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

    • 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."
    • 24KWL/PBL Aug 13, 2026 · Service Bulletin/Repair Instructions
      The verbiage in the Introduction section has been updated.
    • 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.
    • 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.
    • 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…
    • 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…
    Source: NHTSA manufacturer communications files.
    About service bulletins