Vehicle report

2022 PETERBILT 337

Service bulletins

10 bulletins

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.

24KWL/PBL

Service Bulletin/Repair Instructions

The verbiage in the Introduction section has been updated.

22KWE/PBE

Service Bulletin/Repair Instructions

Sheppard Recall Order Process Update - The Parts section has been updated with revised steps for opening a TCS365 Order Support – Order Inquiry case.

24PBL

Service Bulletin/Repair Instructions

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

32-025

Service Bulletin/Repair Instructions

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.

13-065

Service Bulletin/Repair Instructions

13-065 DAVIE4 Chassis Air Leak Testing Info Only A new test is now available in DAVIE4 to properly measure chassis air system pressure decay, provide test results, and pass/fail criteria. Your DAVIE tool must be at version 24.05 or newer for the test to be available. A test procedure document has also been made available that shows all necessary setup and testing procedure criteria (procedure document attached in Links section). The DAVIE4 “Check the air pressure decay rate” test and the test procedure document MUST be followed anytime a chassis comes in for a warranty related air system repair where excessive air system pressure decay is suspected. Warranty claims filed for air system pressure decay may be denied if DAVIE4 test AND test procedure have not been followed.

16-044

Service Bulletin/Repair Instructions

Fix As Fail The height control valve (HCV) rod on vehicles with low air leaf suspensions is prone to toggling over center during rough road conditions. With full suspension articulation, HCV bracket flexes and toggles over center the HCV linkage, which results in either deflated airbags or makes them unable to inflate. Fix-as-fail start date is 07/30/2024.

CE019

Service Bulletin/Repair Instructions

07/24/2024 - Updated the Emissions Warranty Coverage tables. Added new coverage tables and PartsLists for GHG/Vehicle Parts and ZEP/BEV Parts. 03/07/2022 - New Emissions bulletin which consolidates older versions and accounts for new CARBemissions requirements that go into effect with Engine Model Year 2022.

45-064

Service Bulletin/Repair Instructions

Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to deliver secure software updates remotely. This will reduce downtime and save on maintenance costs for eligible vehicles.

14-043

Service Bulletin/Repair Instructions

Fix-As-Fail On certain chassis with Low Air Leaf Suspension or Low-Low Air Leaf Suspension, the Height Control Valve (HCV) arm may be rubbing on other components when the bend in the arm is facing outboard. Flipping the bend in the HCV arm inboard prevents the rub.

13-060

Service Bulletin/Repair Instructions

The service information for Bendix Air Dryer maintenance is being updated to include new procedures.

Reading this report

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.

2022 Peterbilt 337 Service Bulletins: 10 bulletins | CarFathom