Recall Register

2026 Peterbilt 537: recalls and complaints

NHTSA lists 2 recall campaigns for the 2026 Peterbilt 537. The newest campaign is 25V436000. NHTSA received the report on 26 Jun 2025. The NHTSA record gives the component Exterior Lighting / Lighting Control Module / Software. 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, 25V436000, in the NHTSA record

Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 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 number for this recall is 25PACF.

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

2 campaigns, newest first. 61,638 units in total.

  1. 25V436000Received . 56,260 units.

    Exterior Lighting / Lighting Control Module / Software

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2024-2026 Kenworth T480, T680, T880, W990, Peterbilt 520, 536, 537, 548, 567, 579, 589, 2025 Kenworth T180, Peterbilt 535, 2025-2026 Kenworth T280, T380 and L770 vehicles. The tail brake light, upper and lower beam headlights, reverse light, and turn signal may not illuminate as intended. In addition, the lift axles, if lowered, may revert to a raised position, or oscillate up and down when the signal warning lights are activated. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."
    Consequence, in the NHTSA record
    Delayed and unsteady headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash. In addition, an unexpected position change of the lift axles may increase the risk of injury.
    Remedy, in the NHTSA record
    Dealers will update the VCU software, free of charge. Owner letters were mailed August 19, 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 number for this recall is 25PACF.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 25PACF. Owner notification date in the NHTSA record: .

  2. 25V041000Received . 5,378 units.

    Exterior Lighting / Hazard Flashing Warning Lights / Switch

    Defect, in the NHTSA record
    PACCAR Incorporated (PACCAR) is recalling certain 2025 Kenworth T180, Peterbilt 535, 567, 2025-2026 Kenworth T280, 2023-2026 Kenworth T380, 2024-2026 Kenworth T480, 2024-2026 Peterbilt 536, 537, and 548 trucks. The exterior lighting switch may fail, resulting in the hazard lights and the instrument display back-light brightness adjustment not functioning. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 101, "Control and Displays" and 108, "Lamps, Reflective Devices and Associated Equipment."
    Consequence, in the NHTSA record
    Inoperative hazard lights cannot alert other drivers as intended. In addition, the inability to adjust the brightness on the instrument panel display can make it difficult to see critical safety information or distract the driver. Both scenarios can increase the risk of a crash.
    Remedy, in the NHTSA record
    Dealers will update the vehicle cab controller unit (VECU) software, free of charge. Owners are advised that a non-responsive switch can be temporarily reset by a key cycle. Owner notification letters were mailed March 26, 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 25KWB and 25PBB.

    Report filed by PACCAR Incorporated. Manufacturer campaign number 25KWB 25PBB. 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. 20213
  2. 20227
  3. 202310
  4. 202411
  5. 20255
  6. 20262
  7. 20271

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. 2026 Peterbilt 537: recalls and complaints. https://recallregister.com/vehicle/peterbilt/537/2026/. 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
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 2026 Peterbilt 537?
61,638 units in 2 campaigns. A campaign can name other models and model years, and its units include them.
How many recall campaigns does the Peterbilt 537 have for all model years?
NHTSA lists 19 recall campaigns for the Peterbilt 537, model years 2021 to 2027. 2 of them name the 2026 model year.
Is an NHTSA investigation of the 2026 Peterbilt 537 open?
The NHTSA investigation file has no investigation that names this model year.