22KWJ – Tie Rod Clamps Failure – 2023 Kenworth T370, T480, T800, T800B, T880, W900B, W990

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; Customer Service Department If 1(1 ~ ~ ,w:• ] ►f •; I ~~~~~~~ 6~~ck Company Kirkland, Washington 98083-1000 A PA«AR COMPANY (425) 825-5888 IMPORTANT SAFETY RECALL INFORMATION Issued in Accordance 0 With Federal Law U.S. O.partm•nt of Tronsporto11on *N*H**T*S A www,nhm.gov IMPORTANT SAFETY RECALL Subject: Safety Recall 22KWJ – Meritor Tie Rod Clamps First Class Mail US Postage PAID Seattle.WA Permit No. 2389 4 JJ m 0 )> rr z 0 –I 0 m December 15, 2022 IMPORTANT SAFETY RECALL This notice applies to your vehicle; VIN: ——– This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Subject: Safety Recall 22KWJ – Meritor Tie Rod Clamps NHTSA Recall number 22V782 Dear Kenworth Customer, &an this OR code to open the Kenworth Dealer Locator • • Kenworth Truck Company has determined that a defect, which relates to motor vehicle safety, exists in certain Model Year 2023 T370, T480, T800, T880, W900, and W990 chassis built from 01/05/2022 through 06/06/2022. Certain tie rod clamps manufactured by Meritor are subject to cracking due to heat treatment issues during manufacturing. Clamp fracture could lead to tie rod separation from the cross tube and loss of steering control, increasing the risk of a crash. Drivers and service personnel may notice a loss of vehicle alignment preceding a complete fracture of the clamp. Kenworth has initiated a recall to remedy the defect. Parts and procedures are now available. Please contact your Kenworth dealer. To find your Kenworth dealer, please visit Dealer Locator at www.Kenworth.com. This repair may take up to 2 hours of labor depending on vehicle configuration and dealer scheduling. This repair will be performed at no charge to you. The problem is … Certain tie rod clamps manufactured by Meritor may be subject to cracking What your dealer will do … Dealers will replace the tie rod clamps What you must do … Contact your Kenworth Dealer to schedule an appointment for repair If you had this inspection and/or repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. Please contact your Kenworth dealer for more information. If you require further information about this recall, reimbursement of a pre-notification remedy associated with this recall or experience any difficulty in making arrangements for this repair, please contact Kenworth Customer Service using one of the following: Email: Kenworth.Campaigns@paccar.com with the bulletin number in the subject line or Mail: Kenworth Truck Company, P.O. Box 1000, Kirkland, WA 98083-1000, Attn: Customer Service Department or Phone:425-828-5888 You may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov, if you believe that the manufacturer or dealer failed or was unable to remedy the defect without charge within a reasonable time following the earliest date upon which replacement parts and procedures become available. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of th is notice to the lessee within ten days. If you no longer own this vehicle, we would appreciate your advising us of the new owner if you know their name. We regret any inconvenience that this work may cause you and appreciate your cooperation in this matter. Thank you, Afl ,…-~ μ11,’1/~tn+L._ Annick Hollingsworth Director of Service Platforms Kenworth Truck Company

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Safety Recall 22KWJ: Meritor Tie Rod Clamps Number 22KWJ / 22V782 / 2022-592 Supplier Meritor Description Safety Recall 22KWJ: Meritor Tie Rod Clamps Date 11/1/2022 What’s New c:J Edit c..O Clone Safety Recall – Interim Notification Certain Meritor tie rod clamps are subject to cracking due to heat treatment issues during manufacturing. Clamp fracture could lead to tie rod separation from the cross tube and partial loss of vehicle steering capability, increasing the risk of a crash. This bulletin will be updated when repair parts and procedures are available. Introduction Certain Meritor tie rod clamps are subject to cracking due to heat treatment issues during manufacturing. Clamp fracture could lead to tie rod separation from the cross tube and partial loss of vehicle steering capability, increasing the risk of a crash. Drivers and service personnel may notice a loss of vehicle alignment preceding a complete fracture of the clamp. Situation 83 (39 US and 44 CAN) Model Year 2023 T370, T480, T800, T880, W900, and W990 chassis built from 01/05/2022 through 06/22/2022. Resolution Safety Recall This Interim Notification will be updated when parts and repair procedures are available. Federal Law It is a violation of Federal law for a dealer to sell or lease new vehicles covered by this recall until the defect or noncompliance has been corrected. Links Chassis List Authored by: JB3

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-782 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : PACCAR Incorporated Submission Date : OCT 18, 2022 NHTSA Recall No. : 22V-782 Manufacturer Recall No. : 22PBJ and 22KWJ Manufacturer Information : Manufacturer Name : PACCAR Incorporated Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004 Company phone : 940 591 4220 Population : Number of potentially involved : 79 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Peterbilt 348, 367, 389,548,567 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The recall population was determined by identifying chassis numbers that correspond with date range for axle serial numbers and axle part number provided by supplier Production Dates : JAN 06, 2022 – AUG 27, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Kenworth T370, T480, T800, T800B, T880, W900B, W990 Vehicle Type : Body Style : Power Train : NR Descriptive Information : The recall population was determined by identifying chassis numbers that correspond with date range for axle serial numbers and axle part number provided by supplier Production Dates : JAN 12, 2022 – JUL 29, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Tie rod clamps may crack and lose clamping ability. Reduced clamp load to the tie rod end could allow the tie rod end to separate from the crosstube. Separation is more likely to occur when tie rod loads are highest, which is at slow vehicle speeds over rough terrain or turning maneuvers. FMVSS 1 : NR Part 573 Safety Recall Report 22V-782 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 FMVSS 2 : NR Description of the Safety Risk : Separation of the tie rod end from the cross tube could result in partial loss of vehicle steering capability, increasing the risk of a crash. Description of the Cause : Excessive carbon was introduced to the tie rod clamp surface during the heattreating process. Identification of Any Warning that can Occur : The initial effect would be a vehicle out of alignment. If both clamps on the tie rod cracked, the tube could rotate and result in a partial loss of steering capability. Involved Components : Component Name 1 : Tie Rod Clamp Component Description : NR Component Part Number : B05-6029 Supplier Identification : Component Manufacturer Name : Meritor Address : 2135 West Maple Troy Michigan 48084 Country : United States Chronology : 8/31/2022: Safety and Compliance was notified by Meritor of potential tie rod clamp failures. 9/1/2022 through 10/5/2022: Safety & Compliance opens investigation and creates chassis list based on dates provided by Meritor. Manufacturing checks assembly plants for vehicles to be quarantined. 10/7/2022: Safety & Compliance checked warranty system and found no claims or reports related to the issue. 10/10/2022: Peterbilt and Kenworth held joint Safety Committee meeting and determined that a defect relating to motor vehicle safety exists. Part 573 Safety Recall Report 22V-782 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Paccar will notify owners. Authorized dealers will replace both tie rod clamps in affected vehicles free of charge. Owners who incurred costs to obtain a remedy for the problem addressed in the recall in advance of receiving notification may seek reimbursement through the process outlined in the general reimbursement plan on file. How Remedy Component Differs from Recalled Component : Replacement tie rod clamps will meet Meritor’s specifications for heat treatment. Identify How/When Recall Condition was Corrected in Production : The recall condition was corrected in production on 8/29/2022. Recall Schedule : Description of Recall Schedule : Customers will be notified within 60 days. Planned Dealer Notification Date : DEC 16, 2022 – DEC 16, 2022 Planned Owner Notification Date : DEC 16, 2022 – DEC 16, 2022 * NR – Not Reported

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