Recall Register

2027 Peterbilt 579: recalls and complaints

NHTSA lists 3 recall campaigns for the 2027 Peterbilt 579. The newest campaign is 26V544000. NHTSA received the report on 21 Aug 2026. The NHTSA record gives the component Seats / Front Assembly / Seat Heater/Cooler. 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, 26V544000, in the NHTSA record

Dealers will replace the harnesses, free of charge. Owner notification letters are expected to be mailed October 20, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 or Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACE.
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

3 campaigns, newest first. 6,744 units in total.

  1. 26V544000Received . 811 units.

    Seats / Front Assembly / Seat Heater/Cooler

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt 567, 579, 589 and 2027 Kenworth T680, T880, and W990 vehicles. The seat ventilation harness may be missing heat-shrink, resulting in a short circuit.
    Consequence, in the NHTSA record
    A short circuit increases the risk of a fire.
    Remedy, in the NHTSA record
    Dealers will replace the harnesses, free of charge. Owner notification letters are expected to be mailed October 20, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 or Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACE.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 26PACE.

  2. 26V485000Received . 5,925 units.

    Electrical System / Wiring / Power Distribution Module/Ipdm

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2027 Peterbilt and Kenworth vehicles. Please see the recall report for a complete list of models. The power distribution center (PDC) box may be contaminated with oil, which could result in a loss of drive power, Antilock Brake System (ABS) functionality, exterior lighting, windshield wipers, or the defogging system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard numbers 103, "Windshield Defrosting and Defogging Systems," 104, "Windshield Wiping and Washing Systems," and 108, "Lamps, Reflective Devices, and Associated Equipment."
    Consequence, in the NHTSA record
    A loss of lighting, windshield wipers, ABS function, or a loss of drive power can increase the risk of a crash.
    Remedy, in the NHTSA record
    Dealers will inspect the PDC serial numbers, and replace the PDC boxes as necessary, free of charge. Owner letters were mailed September 23, 2026. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACD.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 26PACD. Owner notification date in the NHTSA record: .

  3. 26V442000Received . 8 units.

    Service Brakes, Air / Supply / Quick Release Valve

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2026-2027 Peterbilt 579 and 2027 Kenworth T680 tractors. The trailer air connection quick release (QR) valve in the air brake system may have been incorrectly installed, which can cause the trailer to become unstable after the driver applies the brakes. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
    Consequence, in the NHTSA record
    An incorrectly installed quick release valve that does not function properly can increase the risk of a crash.
    Remedy, in the NHTSA record
    Paccar inspected and reinstalled the valves, as necessary, free of charge. All affected tractors have been repaired and therefore no owner notification letters are necessary. Owners may contact Peterbilt's customer service at 1-940-591-4220 and Kenworth's customer service at 1-425-828-5888. PACCAR's number for this recall is 26PACC.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 26PACC.

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. 20061
  2. 20071
  3. 20082
  4. 20092
  5. 20103
  6. 20114
  7. 20126
  8. 201313
  9. 201412
  10. 20159
  11. 201610
  12. 201712
  13. 201813
  14. 20197
  15. 20205
  16. 20218
  17. 202214
  18. 202311
  19. 20247
  20. 20257
  21. 20262
  22. 20273

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. 2027 Peterbilt 579: recalls and complaints. https://recallregister.com/vehicle/peterbilt/579/2027/. 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
29 Sep 2026
Complaint file through
29 Mar 2018
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 2027 Peterbilt 579?
6,744 units in 3 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Peterbilt 579 have for all model years?
NHTSA lists 59 recall campaigns for the Peterbilt 579, model years 2006 to 2027. 3 of them name the 2027 model year.
Is an NHTSA investigation of the 2027 Peterbilt 579 open?
The NHTSA investigation file has no investigation that names this model year.