Recall Register

2021 Kenworth T800B: recalls and complaints

NHTSA lists 5 recall campaigns for the 2021 Kenworth T800B. The newest campaign is 24V915000. NHTSA received the report on 9 Dec 2024. The NHTSA record gives the component Service Brakes, Hydraulic / Antilock/Traction Control/Electronic Limited Slip / Control Unit/Module. NHTSA has no complaint on file for this model year.

The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.

This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.

Remedy of the newest campaign, 24V915000, in the NHTSA record

Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.
NHTSA VIN lookup

Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.

NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .

Since the last update

No tracked figure of this page changed in a data update. What the log tracks

All updates to the register

Recall campaigns

5 campaigns, newest first. 226,446 units in total.

  • 24V915000Service Brakes, Hydraulic / Antilock/Traction Control/Electronic Limited Slip / Control Unit/Module
  • 23V717000Seat Belts
  • 21V391000Fuel System, Diesel / Fuel Injection System / Fuel Rail
  • 21V080000Engine
  • 20V506000Power Train / Axle Assembly

  1. 24V915000Received . 220,764 units.

    Service Brakes, Hydraulic / Antilock/Traction Control/Electronic Limited Slip / Control Unit/Module

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models. Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop functioning.
    Consequence, in the NHTSA record
    Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may not function properly or at all, increasing the risk of a crash.
    Remedy, in the NHTSA record
    Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220. PACCAR's numbers for this recall are 24KWL and 24PBL.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 24KWL 24PBL. Owner notification date in the NHTSA record: .

  2. 23V717000Received . 3,841 units.

    Seat Belts

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2020 Kenworth T660, 2018-2024 Kenworth T800 and W900 vehicles. An additional spacer may have been added to the joint that connects the seat to the seat belt tether and buckle, causing an unsecured connection.
    Consequence, in the NHTSA record
    An unsecured seat belt connection may not properly restrain an occupant during a crash, increasing their risk of injury.
    Remedy, in the NHTSA record
    Dealers will inspect and remove the additional spacer and replace the bolt, as necessary, free of charge. Owner letters were mailed March 20, 2024. Owners may contact PACCAR's customer service at 1-425-828-5888. PACCAR's number for this recall is 23KWK.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 23KWK. Owner notification date in the NHTSA record: .

  3. 21V391000Received . 612 units.

    Fuel System, Diesel / Fuel Injection System / Fuel Rail

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2018-2021 Peterbilt 337, 348, 365, 367, 520, 567, Kenworth T270, T370, T440, T470, T800 and T880 vehicles. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
    Consequence, in the NHTSA record
    A fuel leak in the presence of an ignition source increases the risk of a fire.
    Remedy, in the NHTSA record
    Dealers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWC and 21PBD.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 21KWC, 21PBD. Owner notification date in the NHTSA record: .

  4. 21V080000Received . 132 units.

    Engine

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.
    Consequence, in the NHTSA record
    A detached flywheel can cause loss of drive power, increasing the risk of a crash. Additionally, driveline pieces may be ejected from the engine compartment, increasing the risk of injury.
    Remedy, in the NHTSA record
    PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021. Owners may contact PACCAR customer service at 1-425-828-5888 (Kenworth) or 1-940-591-4220 (Peterbilt). PACCAR's numbers for this recall are 21KWA and 21PBB.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 21KWA / 21PBB. Owner notification date in the NHTSA record: .

  5. 20V506000Received . 1,097 units.

    Power Train / Axle Assembly

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2020-2021 Peterbilt 348, 365, 367, 389, 520, 567 and Kenworth T800, T880, W900, W990 vehicles equipped with Watson and Chalin steerable lift axle suspension systems (model SL2065). The axles may have lower rear pivot bolts that are not long enough to sufficiently engage the locking feature of the corresponding nuts.
    Consequence, in the NHTSA record
    The short screws can cause the hardware to separate from the suspension system and become road hazards, increasing the risk of a crash and/or injury.
    Remedy, in the NHTSA record
    PACCAR will notify owners, and dealers will inspect suspect chassis and replace the pivot bolts, as necessary, free of charge. The recall began September 29, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 and Peterbilt customer service at 1-940-591-4220. PACCAR's numbers for this recall is 20PBE and 20KWC.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 20PBE and 20KWC. Owner notification date in the NHTSA record: .

The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.

Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.

Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.

Complaints by component

The NHTSA complaint file has no complaint for this model year.

Investigations

The NHTSA investigation file has no investigation that names this model year.

Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.

Other model years

The number under each year is the number of recall campaigns.

  1. 19960
  2. 20000
  3. 20215
  4. 20225
  5. 20235
  6. 20241
  7. 20251

A year without a link has fewer than 2 campaigns and fewer than 25 complaints. It has no page.

Official channels

Cite this page

Recall Register. 2021 Kenworth T800B: recalls and complaints. https://recallregister.com/vehicle/kenworth/t800b/2021/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .

Sources

Source
NHTSA Office of Defects Investigation
Licence
US government work, public domain
Recall file through
30 Sep 2026
Complaint file through
30 Sep 2026
First complaint in the file
1 Jan 1995
Manufacturer in the recall file
PACCAR Incorporated

The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.

Questions

How many units are in the recall campaigns for the 2021 Kenworth T800B?
226,446 units in 5 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Kenworth T800B have for all model years?
NHTSA lists 9 recall campaigns for the Kenworth T800B, model years 1996 to 2025. 5 of them name the 2021 model year.
Is an NHTSA investigation of the 2021 Kenworth T800B open?
The NHTSA investigation file has no investigation that names this model year.