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Service bulletin 24KWL/PBL

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11036291
Published by NHTSA2026-08-20
Manufacturer's number24KWL/PBL
Manufacturer's date2026-08-13
NHTSA componentFORWARD COLLISION AVOIDANCE: WARNINGS

NHTSA's summary

The verbiage in the Introduction section has been updated.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance

Vehicles listed
KENWORTH C5002021 to 2025
KENWORTH C500 EXP2025
KENWORTH C500B2024 to 2025
KENWORTH T2702021 to 2023
KENWORTH T2802021
KENWORTH T2802022, 2023, 2024, 2025
KENWORTH T3702021 to 2023
KENWORTH T3802021
KENWORTH T3802022, 2023, 2024, 2025
KENWORTH T4802021
KENWORTH T4802022, 2023, 2024, 2025
KENWORTH T6802021, 2022, 2023, 2024, 2025
KENWORTH T8002021 to 2025
KENWORTH T800B2021 to 2025
KENWORTH T8802021, 2022, 2023, 2024, 2025
KENWORTH T880B2021 (the catalog's model; the bulletin names a series or trim of it)
KENWORTH W9002021 to 2025
KENWORTH W900B2021 to 2025
KENWORTH W9902021, 2022, 2023, 2024, 2025
PETERBILT 3372020, 2021, 2022, 2023
PETERBILT 3482021, 2022, 2023, 2024, 2025
PETERBILT 3652021, 2022, 2023, 2024, 2025
PETERBILT 3672021, 2022, 2023, 2024, 2025
PETERBILT 3892021, 2022, 2023, 2024, 2025
PETERBILT 5202021, 2022, 2023, 2024, 2025
PETERBILT 5362021
PETERBILT 5362022, 2023, 2024, 2025
PETERBILT 5372021 to 2022
PETERBILT 5372023, 2024, 2025
PETERBILT 5482021 to 2023
PETERBILT 5482024, 2025
PETERBILT 5672021, 2022, 2023, 2024, 2025
PETERBILT 5792021, 2022, 2023, 2024, 2025
PETERBILT 5892024, 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V0070002023-01-16. ELECTRONIC STABILITY CONTROL (ESC)
21V7190002021-09-16. ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE
20V7390002020-11-25. ELECTRONIC STABILITY CONTROL (ESC)

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
36-0102026-05-06. Service campaign. Bendix Fusion Camera Parameter Correction - (KW) Certain Kenworth T680 chassis may have certain software parameters out of specification. Certain out of specification parameters may result in customer dissatisfaction. (PB) Certain Peterbilt Model 579 chassis may have certain software parameters out of specification. Certain out of specification parameters may result in customer dissatisfaction.
24PBL2025-02-05. Service bulletin. Safety Recall Updated software and procedures are now available. Certain Vehicle Model Year 2021-2025 Peterbilt chassis configured for trailer towing require a software update for the Bendix EC80 ABS ECU. Software update procedures for certain Battery-Electric Vehicles (BEV) and EC80 ABS ECU part numbers are not yet available. This bulletin will be updated when software update procedures are available for these chassis. Safety Recall publish date: 1/10/25
24KWA2024-03-04. Service bulletin. SAFETY RECALL Certain T180/T280/T380/T480 chassis may have cab mirror glass lock rings not fully seated. This could result in loss of mirror glass, reducing rear visibility and increasing the risk of an accident or injury. Missing mirrors cause non-compliance with FMVSS 111 / CMVSS 111. Mirror glass lock rings must be inspected and, if necessary, reseated.
24PBA2024-03-04. Service bulletin. SAFETY RECALL Certain 535/536/537/548 chassis may have cab mirror glass lock rings not fully seated. This could result in loss of mirror glass, reducing rear visibility and increasing the risk of an accident or injury. Missing mirrors cause non-compliance with FMVSS 111 / CMVSS 111. Mirror glass lock rings must be inspected and, if necessary, reseated.
46-0032023-11-10. Service bulletin. A software fix for model 520EV that are not equipped with ESP (Stability Control) is now available. The currently available soft ware, part number:SCM_1p5_BC_R5p00_003, will address issues caused by software version R5.00_002 that affect Peterbilt Model 520EV. The software update will correct the following issues: 1.) Power gauge displays axle RPM instead of power draw, 2.) Air conditioning compressor is inoperative below 10 mph (16 kmh) and over 40 mph (65 kmh), 3.) Low air and low coolant audible alarms (buzzers) are inoperative below 10 mph (16 kmh), and 4.) (520EV Only) Does not charge without ignition in on position.
03-0852022-11-02. Service bulletin. Info Only - Parts kits are now available to install the Bendix Side Collision Mitigation Radar system (BlindSpotter) on chassis that were delivered with a Prewire sales code due to parts shortages. Ordering and installation procedures are included.
13-0582022-01-06. Service bulletin. Non-Safety Campaign – Certain model 337 and 348 medium duty chassis were built with the ABS module installed incorrectly
21PBl2021-11-05. Service bulletin. Electric Stability Control – Malfunction Indicator Lamp May Not Illuminate – NHTSA ID: 21V-719. An incorrectly programmed software parameter results in a failed signal from the electronic stability control (ESC) system to the dash lamp that indicates a malfunction. Updating the software parameter via Davie4 resolves the issue.
52-0042021-08-05. Service bulletin. Fix-as-Fail: Radio does not mute when truck with auto trans is placed in reverse. Software flash resolves issue.