# Service bulletins for the 2024 Peterbilt 536

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 bulletins from NHTSA, as of 2026-10-19.

- [42\-070](/bulletins/11038569.md), 2026-10-17, Service bulletin: UNKNOWN OR OTHER. Due to supplier constraints, an authorized aftermarket surge tank has been made available.
- [T017](/bulletins/11037625.md), 2026-10-01, Service bulletin: UNKNOWN OR OTHER; POWER TRAIN. Information has been added to identify that ECAT incorrectly identifies PS386 as the correct transmission oil for TX\-8 transmission on certain vehicles.\[
- [P001](/bulletins/11037541.md), 2026-09-29, Service bulletin: ENGINE. "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
- [24KWL/PBL](/bulletins/11036291.md), 2026-08-20, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS. The verbiage in the Introduction section has been updated.
- [43\-080](/bulletins/11033918.md), 2026-06-17, Service bulletin: ELECTRICAL SYSTEM. "KW: A new recommended repair has been added to verify the software level and close the campaign in SIR.The repair procedure has been updated with additional note boxes for clear instructions. PB: The repair procedure has been updated with additional note boxes for clear instructions."
- [02\-177](/bulletins/11033351.md), 2026-06-03, Service bulletin: ELECTRICAL SYSTEM. Troubleshooting procedures for 2.1m cab power windows are now available.
- [14\-034](/bulletins/11032290.md), 2026-05-06, Service bulletin: UNKNOWN OR OTHER. Bogie Crossmember Torque Value Update \- Procedure has been updated to correct torque values.
- [45\-069](/bulletins/11029787.md), 2026-03-05, Service bulletin: ENGINE. Cummins TSB 210203 has been updated to remove the PACCAR suction side fuel filter part number from Table 1 as the filter is no longer compatible.
- [24PBE\_KWE](/bulletins/11029738.md), 2026-03-05, Service bulletin: ELECTRICAL SYSTEM. The Parts section has been updated to clarify that freight charges for safety recall orders should not be passed on to the end customer.
- [25PACF](/bulletins/11027067.md), 2026-01-06, Service bulletin: EXTERIOR LIGHTING. Parts and procedures are now available for all affected chassis equipped with Vehicle Electronic Control Unit \(VECU\) part number Q21\-1157\-013\-011 / Q21\-1157\-013\-013 / Q21\-1157\-002\-002 / Q21\-1157\-004\-004 / Q21\-1157\-006\-006 / Q21\-1157\-009\-009. See attached Parts Matrix for required parts per chassis.
- [25KWB/25PBB](/bulletins/11027057.md), 2026-01-06, Service bulletin: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. A new Recommended Repair has been added. It must be used if safety recall 25PACF is performed prior to or at the same time as this repair since the 25PACF remedy also satisfies this safety recall.
- [24PBE](/bulletins/11026415.md), 2025-12-05, Service campaign: ELECTRICAL SYSTEM; POWER TRAIN. The right\-hand shift stalk may have an improper wire harness terminal crimp within the wire harness connector. Loss of communication between the right\-hand shift stalk and the vehicle may result in the vehicle being disabled after it comes to a stop, thereby increasing the risk of crash or injury. A warning will appear on the dash display when communication is lost, including transmission or engine warnings, “\!” next to DNR/DNRP indicator, “\-“ in the DNR/DNRP indicator, and/or chimes, depending upon whether you are operating a diesel/gas or battery electric vehicle.
- [25PACF](/bulletins/11022490.md), 2025-09-03, Service campaign: EXTERIOR LIGHTING. Procedures are now available for Phase 1 chassis equipped with Internal Combustion Engines \(ICE\) and Vehicle Electronic Control Unit \(VECU\) part number Q21\-1157\-013\-011 / Q21\-1157\-013\-013. Parts and procedures for Phase 2 chassis will be available at a later date. This bulletin will be updated at that time. Please refer to the condition section for more details. Certain Ethernet Multiplexed Architecture \(EMUX\) chassis fail to conform to Federal and Canada Motor Vehicle Safety Standards \(FMVSS/CMVSS\) No. 108. Delayed or unsteady illumination of the vehicle’s stop lamps, reverse lamps, turn signal lamps and inadvertent change in headlamp illumination or lift axle position may"
- [24PBJ](/bulletins/11021490.md), 2025-08-05, Service bulletin: POWER TRAIN; SUSPENSION. "Safety Recall Parts and repair procedures are now available. Certain Meritor 10\-16K and 18\-23K Front Steer Drive Axles may have insufficient wheel bearing grease. Insufficient lubrication in the wheel bearing may cause the wheel hub to overheat and become damaged, which may increase the risk of a crash or thermal event . The driver may hear noise, excessive steering play, and/or smoke from the front wheel.
- [25PBA](/bulletins/11017897.md), 2025-05-06, Service bulletin: VEHICLE SPEED CONTROL. Certain Model 535/536/537/548 may have an oversized magnet carrier in the throttle pedal assembly, which may cause the pedal to stick, and may increase the risk of a crash. Driver may feel sticking or that pedal does not return to idle once released. Pressing the service brake will overcome a stuck throttle pedal and allow the vehicle to stop. All affected chassis must perform a date inspection on the throttle pedal. If the date falls on or between suspect range, 08/12/2022 through 12/14/2022, throttle pedal is considered bad and will need to be replaced. Safety Recall start date: 03/27/2025
- [25PBB](/bulletins/11016628.md), 2025-04-04, Service bulletin: ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Safety Recall The Exterior Lighting Switch \(ELS\) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non\-compliance with FMVSS/CMVSS 101 and 108. Affected chassis must have the Vehicle Soft ware updated.
- [43\-080 PB](/bulletins/11016473.md), 2025-04-04, Service campaign: ELECTRICAL SYSTEM. As of 03/25/2025, this campaign has resumed. Software updates are now available to complete this campaign.
- [T020 \- PB](/bulletins/11016468.md), 2025-04-04, Service bulletin: POWER TRAIN. Fix\-As\-Fail Certain Model 535, 536, 537, and 548 chassis equipped with a PACCAR TX\-8 transmission received transmission software with an incorrect variable. This software issue may cause DTC 521215\-2 to set, the Transmission Dash Light to Illuminate, and shifting to be restricted. A software update is now available to fix the issue. Fix\-as\-Fail start date: 03/19/2025.
- [25PBB](/bulletins/11014765.md), 2025-03-04, Other: EXTERIOR LIGHTING; ELECTRICAL SYSTEM. "Safety Recall – Interim Notification The Exterior Lighting Switch \(ELS\) in certain Model 535, 536, 537, 548, and 567 chassis may not function and can be reset only by a key cycle. This issue may result in non\-compliance with US Federal Motor Vehicle Safety Standards \(FMVSS\) or Canadian Motor Vehicle Safety Standards \(CMVSS\) 101 and 108. This bulletin will be updated when software and programming procedures are available."
- [25PBA](/bulletins/11013801.md), 2025-02-06, Service bulletin: ENGINE; VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Safety Recall – Interim Notification Certain vehicles may have an oversized magnet carrier in the throttle pedal assembly, which may cause the pedal to stick, and may increase the risk of a crash. Driver may feel sticking or that pedal doesn’t return to idle once released. Pressing the service brake will overcome a stuck throttle pedal and allow the vehicle to stop. This bulletin will be updated once parts and procedures are available. INTERIM Safety Recall start date: 01/29/2025
- [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
- [24PBJ](/bulletins/11012372.md), 2025-01-07, Service bulletin: STEERING; WHEELS. INTERIM Safety Recall Certain Meritor 10\-16K and 18\-23K Front Steer Drive Axles may have insuffi cient wheel bearing grease. Insuffi cientlubricati on in the wheel bearing may cause the wheel hub to overheat and become damaged, which may increasethe risk of fi re. The driver may hear noise, excessive steering play, and/or smoke from front wheel. INTERIM Safety Recall start date: 12/12/2024
- [32\-025](/bulletins/11010926.md), 2024-12-03, Service bulletin: ENGINE. Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied.
- [24PBGC](/bulletins/11005567.md), 2024-08-03, Service bulletin: STEERING. SAFETY RECALL Repair parts and procedures are now available. Certain Peterbilt vehicles from Model Year 2025 may contain steering gear\(s\) with sector shaft gear teeth that may prematurely wear, crack, or fracture and interfere with the steering gear mechanism. This may lead to steering gear binding, which may increase the risk of a crash.
- [98\-026](/bulletins/11000767.md), 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

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