Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
P001
KW: The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 8 chassis. The total chassis count is now 130. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section.
P002
KW: A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 2 chassis. The total chassis count is now 4. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section.
43-089
This optional software update is expected to be available after 08/28/2026.
24KWC/24PBC
Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
24KWL/PBL
The verbiage in the Introduction section has been updated.
31-002
An installation guide is now available for temporary solar battery maintainers used on vehicles in dealer inventory. Using solar battery maintainers according to the attached guide can reduce instances of dead or undercharged batteries in stock vehicles at dealerships. Use of solar maintainers is considered a best practice for battery maintenance.
32-009
The battery care, maintenance, and charging guidelines have been updated to include Absorbent Glass Mat (AGM) battery information. Dealers are responsible for maintaining inventory trucks and on-shelf batteries.
T024
KW & PB: New software is available for download. The DAVIE4 cache must be cleared before attempting to reprogram a chassis that is experiencing problems to ensure the latest version of software is installed. Follow all steps in the attached procedures before submitting a TCS case.
T-024
The repair procedure has been updated to include diagnostic steps.
27-012
The attachment for Eaton bulletin TAIB-1015 has been updated to the latest version to improve process flow.
43-080
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.
99-051
There is an update to the CARB Base Emissions Warranty Limits table and Manufacturer’s Warranty Coverage section in certain Engine Model Year (EMY) 2025 MX-11 and MX-13 Operator’s Manuals.
02-177
Troubleshooting procedures for 2.1m cab power windows are now available.
43-087
(KW) Certain T680 / T800 / T880 / W900 / W990 have updated GHG labels available for order and installation.
41-024
Procedures have been updated to include additional truck models in the service intervals table.
45-070
The attached procedures document has been updated with more detail and explanations. This is not a stand-alone procedure. Cummins Quickserve troubleshooting will specify the use of these procedures while troubleshooting specific fault codes.
14-034
Bogie Crossmember Torque Value Update - Procedure has been updated to correct torque values.
E326
EPA17-24 MX Fuel Injector Connector - This bulletin has been revised to include all EPA17-24 and CARB24 PACCAR MX engines.
37-004
PACCAR MX-13 VECU3 Software Update - Certain heavy-duty chassis equipped with a PACCAR MX-13 engine are eligible for a Vehicle Electronic Control Unit (VECU3) software update.
43-083
Exhaust Stack Isolators - Early wear of the polyurethane exhaust stack isolators may occur on certain Kenworth chassis due to excessive heat. Early wear of the polyurethane exhaust stack isolators may occur on certain Peterbilt chassis due to excessive heat.
14-036
One-Piece Aluminum Crossmember Repair - Repair procedures are available to support the replacement of intermediate or midship one-piece aluminum crossmembers.
25PACF
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.
25PBE
Parts and repair procedures are now available. Certain chassis may have a rear suspension tracking rod that interferes with the left rear brake valve components during full suspension travel. This interference could cause a loss of the rear service brake or ABS modulation for one rear axle wheel end, increasing the risk of a crash.
E323
A required spacer tool set is now available to streamline the injector replacement process. The spacer tool set allows certain fuel system components to be loosened instead of removed to provide access to the injectors. See Bulletin 98-031 for details. Tools are not reimbursable through this Bulletin.
R2306 - PB
All EMUX retrofit procedures updated to make it clear that the VECU3 must have software updated and vehicle mileage confirmed correct before updating the Digital Display. Parts and Procedure section also updated to include the Vehicle Emissions Control Information label ordering and installation instructions. This label is required for all chassis involved in R2306. Included additional reference to Cummins bulletin C7014 in the procedure section for ordering emissions labels.
43-080 PB
As of 03/25/2025, this campaign has resumed. Software updates are now available to complete this campaign.
E322 - PB
Campaign An MX-13 CARB Software update is available to improve reliability and uptime. The software must be updated to NA-110C before releasing any chassis to the final customer. Certain Vehicle Model Year 2025 567, 579, and 589 chassis equipped with Engine Model Year (EMY) 2024 CARB MX-13 engines and NA-100C software may experience a Malfunction Indicator Lamp (MIL) due to a software issue. Without this update, a derate may occur. Campaign start date is 01/15/2025.
24PBL
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
E319
Emissions Campaign Engine Model Year 2024 may not be displayed correctly on the PACCAR MX Engine Label. New and improved PACCAR MX Engine Labels are now available to be installed. Campaign start date is 11/26/2024
24PBH
Safety Recall Reference Cummins Safety Recall C7083 Cummins alerted Peterbilt to a defect which relates to motor vehicle safety that may affect certain Cummins X15 engines. Refer to Cummins Safety Recall C7083 for repair information.
E322
E322 - EMY2024 CARB MX Software Update - INTERIM Campaign – Interim Notification Certain model year 2025 567, 579 and 589 chassis equipped with EMY2024 CARB MX-13 engines and NA-100C software may experience a Malfunction Indicator Lamp (MIL) due to a software issue. If ignored, a derate may occur. This bulletin will be updated once the software is available.
E290
FIX-AS-FAIL Updated to include EPA2024 compliant engines. Fuel Filters must be changed before first cleaning. EPA2021 injector cleaning is referenced in RMI for certain injector faults. Complete the procedures in E290. Discard any previous versions of E290 procedures – always use the most current document from the link in the bulletin.
27-010
Fix As Fail Approximately 150 chassis built with an Allison 6th Gen 4500 series 6-speed transmission were assembled with the incorrect transmission harness. A procedure to re-pin transmission harness has been developed. Fix-as-Fail start date is 09/18/2024.
24KWGD/24PBGD
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.
24PBGD
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
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.
15-031
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.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.