AutoStatsIQ
Data through Oct 2026
Model year

2026 Kenworth L770

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

Recalls (2)Complaints (0)Investigations (0)Bulletins (13)
Recall campaigns covering this model year256k 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 L770 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 L770

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 L770
CampaignFiledSubjectComponentVehiclesRemedy
26V-022Jan 19, 2026Right-hand stand-up (RHSU) configuration on the steering cross-shaft may become stressed and failSteering219Part replacement
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 L770

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

    13 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."
    • 43-089 Aug 21, 2026 · Service Bulletin/Repair Instructions
      This optional software update is expected to be available after 08/28/2026.
    • 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…
    • 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…
    • 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.
    • 26PACA May 20, 2026 · Service Bulletin/Repair Instructions
      ​Updated cross shaft and bearing installation steps have been added to the repair procedures.
    • 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.
    • 26PACA Feb 28, 2026 · Service Campaign
      KW: ​Certain Kenworth L770 chassis may have Right-Hand (RH) steering cross shaft bearing mounting holes that are misaligned, resulting in increased stress on the steering cross shaft on the Right-Hand Stand-Up (RHSU) controls configuration. Failure of the R…
    • 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…
    • 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.
    About service bulletins