Service bulletins for the 2025 Peterbilt 537
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.
35 on file from NHTSA, as of 2026-10-19.
By type
By component
| R2306 - PB | 2024-12-03. Service bulletin. ELECTRICAL SYSTEM. TCS case requirements for EMUX software and PACCAR MX Pack 2 injector upfit have been removed. Software has been campaigned for both processes, and software assistance is no longer required. All EMUX jumper harness retrofit procedures have been updated to include a soft reverification step and procedures for 520, 567 car carrier, and 2.1m MD have been updated to include R&R procedures for VECU3. Parts Matrix has been updated – VECU3 has been added to numerous chassis. |
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| 24KWGD/24PBGD | 2024-09-10. Service bulletin. STEERING. This bulletin contains secondary inspection procedures and part replacement procedures for tie-rods identified as SUSPECT under 24PBGB ONLY. Certain chassis that have completed 24PBGB inspection with “GOOD” results but have not filed warranty claims to close out the campaign in SIR will need to file a claim and close out 24PBGD. Secondary inspection and replacement procedures are now available through this bulletin for parts found to be SUSPECT in the 24PBGB Safety Recall. Customers will be advised NOT TO DRIVE TRUCKS until this remedy is completed. |
| 24KWG/24PBGC | 2024-09-10. Service bulletin. STEERING. Safety Recall Campaign start date: 6/17/2024 This bulletin contains secondary inspection procedures and part replacement procedures for drag links identified as SUSPECT under 24PBGA ONLY. Certain chassis that have completed 24PBGA inspection with “GOOD” results but have not fi led warranty claims to close out the campaign in SIR will need to fi le a claim and close out 24PBGC. Secondary inspection and replacement procedures are now available through this bulletin for parts found to be SUSPECT in the 24PBGA Safety Recall. Customers will be advised NOT TO DRIVE TRUCKS until this remedy is completed. |
| 24PBGD | 2024-08-03. Service bulletin. STEERING. This bulletin contains secondary inspection procedures and part replacement procedures for tie-rods identified as SUSPECT under 24PBGB ONLY. Certain chassis that have completed 24PBGB inspection with “GOOD” results but have not filed warranty claims to close out the campaign in SIR will need to file a claim and close out 24PBGD. Secondary inspection and replacement procedures are now available through this bulletin for parts found to be SUSPECT in the 24PBGB Safety Recall. Customers will be advised NOT TO DRIVE TRUCKS until this remedy is completed. |
| 24KWGB/24PBGB | 2024-07-03. Service bulletin. STEERING. Safety Recall Certain model year 2025 Peterbilt 220, 536, 537, 548, 567, 579, and 589 chassis may have a tie-rod with a ball stud that does not meet hardness specification. The ball stud may fracture, leading to a loss of steering and reduced vehicle control, increasing the risk of a crash. Customers will be advised NOT TO DRIVE TRUCKS until the remedy is completed. |
| 24KWGA/24PBGA | 2024-07-03. Service bulletin. STEERING. Safety Recall Certain model year 2025 Peterbilt 536, 537, and 548 vehicles may have a drag link with a ball stud that does not meet hardness specification. The ball stud may fracture, leading to a loss of steering and reduced vehicle control, increasing the risk of a crash. Customers will be advised NOT TO DRIVE TRUCKS until the remedy is completed. |
| 98-026 | 2024-06-04. Service bulletin. SEATS. Information Only New tools are required to support PACCAR TX-8 / ZF transmissions. Part numbers E0l-1012 (Adapter, Jack TX-8), E0l-1014 (Front Seal Installer), and E0l-1015 (Rear Seal Installer) are currently available to order |
| 41-027 | 2024-06-04. Service bulletin. ENGINE. On certain Peterbilt, New Medium Duty chassis that are equipped with the optional engine intake air Pre-Filter (option code 3281830) the Pre-Filter may become clogged and cause premature failure/breach of the primary intake air filter. In some cases, a failed/breached primary filter can result in unusually high engine RPMs and high crankcase pressure. However, a failed/breached primary filter may not exhibit any of these symptoms. The immediate fix for this issue is to modify the Pre-Filter by removing the filter media from the base plate, and then reinstalling the modified Pre-Filter base plate. |
| E307 | 2024-05-04. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. CARB Emission s Manufacturer Warranty term and/or kilometers conversion displayed in certain EMY 2022-2023 PX-7 or PX-9 Operator’s Manuals are incorrect. |
| 15-031 | 2024-04-04. Service bulletin. STEERING. This Bulletin contains parts ordering and replacement procedures for Steering Gears identified as SUSPECT under 24PBC ONLY. Steering Gears repaired under this bulletin MUST be entered into the Serial Number Tracking Form for 24PBC. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.