# 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. - Type: Service bulletin - NHTSA id: 11036291 - Published by NHTSA: 2026\-08\-20 - Manufacturer's number: 24KWL/PBL - Manufacturer's date: 2026\-08\-13 - NHTSA component: FORWARD COLLISION AVOIDANCE: WARNINGS ## NHTSA's summary The verbiage in the Introduction section has been updated. ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036291-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036291-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Driver assistance ## Vehicles listed - 2021 to 2025 KENWORTH C500 - 2025 KENWORTH C500 EXP - 2024 to 2025 KENWORTH C500B - 2021 to 2023 KENWORTH T270 - 2021 KENWORTH T280 - 2022 to 2025 KENWORTH T280 - 2021 to 2023 KENWORTH T370 - 2021 KENWORTH T380 - 2022 to 2025 KENWORTH T380 - 2021 KENWORTH T480 - 2022 to 2025 KENWORTH T480 - 2021 to 2025 KENWORTH T680 - 2021 to 2025 KENWORTH T800 - 2021 to 2025 KENWORTH T800B - 2021 to 2025 KENWORTH T880 - 2021 KENWORTH T880B - 2021 to 2025 KENWORTH W900 - 2021 to 2025 KENWORTH W900B - 2021 to 2025 KENWORTH W990 - 2020 to 2023 PETERBILT 337 - 2021 to 2025 PETERBILT 348 - 2021 to 2025 PETERBILT 365 - 2021 to 2025 PETERBILT 367 - 2021 to 2025 PETERBILT 389 - 2021 to 2025 PETERBILT 520 - 2021 PETERBILT 536 - 2022 to 2025 PETERBILT 536 - 2021 to 2022 PETERBILT 537 - 2023 to 2025 PETERBILT 537 - 2021 to 2023 PETERBILT 548 - 2024 to 2025 PETERBILT 548 - 2021 to 2025 PETERBILT 567 - 2021 to 2025 PETERBILT 579 - 2024 to 2025 PETERBILT 589 ## Recalls for the same vehicles and component - [23V007000](/recalls/nhtsa/23V007000.md), 2023-01-16: ELECTRONIC STABILITY CONTROL \(ESC\) - [21V719000](/recalls/nhtsa/21V719000.md), 2021-09-16: ELECTRONIC STABILITY CONTROL \(ESC\):CONTROL MODULE:SOFTWARE - [20V739000](/recalls/nhtsa/20V739000.md), 2020-11-25: ELECTRONIC STABILITY CONTROL \(ESC\) ## Other bulletins for the same vehicles and component - [36\-010](/bulletins/11032285.md), 2026-05-06, Service campaign: UNKNOWN OR OTHER; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL. 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. - [24PBL](/bulletins/11013775.md), 2025-02-05, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. 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 - [24KWA](/bulletins/10251173.md), 2024-03-04, Service bulletin: VISIBILITY; BACK OVER PREVENTION. 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. - [24PBA](/bulletins/10251172.md), 2024-03-04, Service bulletin: VISIBILITY; BACK OVER PREVENTION. 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\-003](/bulletins/10245191.md), 2023-11-10, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). 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\-085](/bulletins/10225582.md), 2022-11-02, Service bulletin: LANE DEPARTURE: BLIND SPOT DETECTION. 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\-058](/bulletins/10206093.md), 2022-01-06, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). Non\-Safety Campaign – Certain model 337 and 348 medium duty chassis were built with the ABS module installed incorrectly - [21PBl](/bulletins/10203082.md), 2021-11-05, Service bulletin: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\). 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\-004](/bulletins/10199985.md), 2021-08-05, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE. Fix\-as\-Fail: Radio does not mute when truck with auto trans is placed in reverse. Software flash resolves issue. JSON: [/v1/bulletins/11036291](/v1/bulletins/11036291) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2024KWL%2FPBL&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11036291&vehicle=Service%20bulletin%2024KWL%2FPBL)