22PBF Mirror May Detach and Become Road Hazard – 2022-2023 Peterbilt 579

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-940 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : PACCAR Incorporated Submission Date : DEC 16, 2022 NHTSA Recall No. : 22V-940 Manufacturer Recall No. : 22PBF Manufacturer Information : Manufacturer Name : PACCAR Incorporated Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004 Company phone : 940 591 4220 Population : Number of potentially involved : 2,565 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2022-2023 Peterbilt 579 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : ALL Power Train : DIESEL Descriptive Information : Model 579 (MLU) trucks built with optional molded hood mirror before all assemblies were built with wire harness or tether. Production Dates : SEP 16, 2021 – JAN 31, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Certain trucks are equipped with molded hood mirrors that may experience a pivot joint failure. Within that population of trucks there are mirrors that do not have a wire harness or tether to keep the upper half of the mirror with the truck if the pivot joint fails. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A mirror with a pivot joint break without a wire harness or tether can result in foreign object debris on the roadway increasing the risk of a crash and/or injury. Description of the Cause : Molding flaws in the mirror pivot joint may cause hardware to backout or molded stem may break. Identification of Any Warning that can Occur : No prior warning. Involved Components : Part 573 Safety Recall Report 22V-940 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Mirror-Hood Component Description : Model 579 MLU Molded Hood Mirror Component Part Number : L59-6006-100, L59-6006-100R, L59-6006-200, L59-6006-200R Supplier Identification : Component Manufacturer Name : Velvac Inc. Address : 2405 S Calhoun Rd New Berlin Wisconsin 53151 Country : United States Chronology : 10-27-2022: Engineering notified Safety & Compliance that warranty claims were being received for hood mirrors breaking at the pivot joint. 10-28-2022 Engineering provided list of trucks built with L59-6006 mirror. 11-09-2022 Engineering warranty group provided warranty claims for Safety & Compliance to review. 11-16-2022 Engineering warranty group provided updated warranty claims. Engineering provided details on pivot joint failures and corrective actions at the supplier. 11-17-2022 Engineering forwarded Safety & Compliance questions on to the supplier. 11-21-2022 Supplier answered questions Safety & Compliance had. 11-22-2022 Safety Committee reviewed investigation. They requested that the mirror build dates and failures be compared to determine if the failure rate varied throughout the suspect time frame. 11-23-2022 Customer service group provided US/Canada registry for suspect chassis list. 11-30-2022 Met with supplier to review warranty claims and returned parts to help determine how each failed and whether they had a wire harness or tether. 58 warranty claims out of 28,734 mirrors built for a 0.2% failure rate. 12-13-2022: Safety Committee determines a safety related defect exists. Part 573 Safety Recall Report 22V-940 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, and dealers will inspect for the presence of a wire harness or tether. If neither is present, dealers will replace the hood mirror assembly. 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 : Remedy components have a wire harness or tether. Identify How/When Recall Condition was Corrected in Production : All mirrors in current production have a wire harness or tether to mitigate mold process errors. Harnesses were installed starting 11/20/2021 and tethers started 6/28/2022. Recall Schedule : Description of Recall Schedule : Customers will be notified within 60 days. Planned Dealer Notification Date : FEB 14, 2023 – FEB 14, 2023 Planned Owner Notification Date : FEB 14, 2023 – FEB 14, 2023 * NR – Not Reported

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PETERBILT MOTORS COMPANY A MCIOIII. COMPANY 1700 WOODBROOK STREET DENTON. TEXAS 76205-7864 940-59 1-4000 Recall Notice: 22PBF IMPORTANT SAFETY RECALL INFORMATION Issued in Accordance With Federal Law N**H**T*S A -U.S.Oeporment al …. ,., l,,1,,, 1111 ,1111,1,,111,1,,u o11•l11111•1l1111••111111l1111ll1111 _,P8F msT-0.ASS – U.S. f05Wl: l’M) <lM/11(). (ll Pem-.No. 4S9 Tl P1 0030 ~ :II ,nm. rr-z 0 –I n m IMPORTANT SAFETY RECALL February 17, 2023 Subject: Safety Recall: 22PBF – 579 MLU Molded Hood Mirror NHTSA: #22V940 EXPIRATION DATE: NONE This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page. Dear Peterbilt Customer, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Peterbilt has decided that a defect, which relates to motor vehicle safety, exists in certain model 579 MLU chassis built between 09/16/2021 and 01/31/2022 that are equipped with optional, molded hood mirrors built without a wire harness or tether. These hood mirrors may experience a pivot joint failure due to molding flaws resulting in foreign object debris on the roadway, increasing the risk of a crash and/or Injury. These failures can occur with no prior warning. What is the problem? What will your dealer do? What should you do? Model 5 79 MLU Molded Hood Mirror assemblies built without a wire harness or tether may have molding flaws in the mirror pivot joint which may cause hardware to backout or molded stern may break. When parts are available, your dealer will replace the necessary parts per the decided repair procedure. There is no action raquired on your part at this time. You will receive a letter notifying you when the parts are available. Peterbilt Motors Company has initiated this recall to remedy the issue at no charge to you. Currently, the parts are not available to correct this condition. However, Peterbilt is required to nofify customers of the existence of the iderrtified safety defect. You will be notified by mail when the repair procedure and parts become available. 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: Peterbilt Motors Company, 1700 Woodbrook St, Denton, TX 76205, Attn: Customer Service Department. If you conclude that Peterbllt has not enabled you to remedy this defect in a reasonable time and without charge, you may submit a complaint to: Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590, or call the toll free Vehicle Safety Hotlne at 1-888-327-4236 {TTY: 1-800-424-9153); or go to http://www.safercar.gov. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If you no longer own this vehicle, we would appreciate your advising us of the new owner. Please send all known ownership and address changes to PBDiv,warranty.Oocs@paccar.com. We apologize for any inconvenience this preventive procedure may cause and thank you for your participation in helping Peterbilt provide the highest levels of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to Peterbilt and Its dealer network. Industry-leading quality, performance and reliability are hallmarks of Peterbilt products, and we thank you for making Peterbilt your truck of choice. Sincerely, 4/Vl.~ ?-/2.- Michelle Ponsonby Director of Customer Service Peterbilt Motors Company Our records Indicate that these vehicles are affected by 22PBF and are owned by Scan this QR code to open the Peterblt Dealer Locator. II

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Objet: Rappel de sécurité : 22PBF – Rétroviseur moulé sur le capot sur 579 MLU Rappel de Transport Canada : 2022-729 DATE D’EXPIRATION : AUCUNE Cet avis concerne votre véhicule. Votre (vos) NIV(s) se trouve(nt) au bas ou au verso de la présente. Cher client Peterbilt, Le présent avis vous est envoyé conformément aux exigences de la Loi sur la sécurité automobile. La présente a pour but de vous informer que votre véhicule est susceptible d’avoir un défaut qui pourrait porter atteinte à la sécurité humaine. Peterbilt a constaté qu’une défectuosité reliée à la sécurité des véhicules automobiles est présente dans certains châssis de modèle 579MLU, fabriqués entre le 16/09/2021 et le 31/01/2022 et équipés de rétroviseurs optionnels moulés sur le capot et construits sans faisceau électrique ou sangle. Il est possible que ces rétroviseurs sur le capot soient sujets à une défectuosité de l’articulation cylindrique suite à des défauts de soudure résultant de débris de matière étrangère sur la chaussée, augmentant le risque d’accident et/ou de blessure. Ces défectuosités peuvent se produire sans préavis. Quel est le problème? Les assemblages de rétroviseur moulé sur le capot sur modèle 579 MLU construits sans faisceau électrique ou sangle peuvent comporter des défauts de soudure dans l’articulation cylindrique du rétroviseur, ce qui pourrait occasionner un retrait de la soudure ou un bris de la tige moulée. Que fera votre concessionnaire? Lorsque les pièces seront disponibles, votre concessionnaire remplacera les pièces nécessaires selon la procédure de réparation convenue. Que devriez-vous faire? Aucune action n’est requise de votre part pour l’instant. Vous recevrez une lettre vous avisant du moment où les pièces seront disponibles. Peterbilt Motors Company a mis en place ce rappel afin de remédier au problème, sans frais. Actuellement, les pièces ne sont pas disponibles pour corriger cette condition. Cependant, Peterbilt se doit d’aviser ses clients de l’existence de la défectuosité reliée à la sécurité ayant été identifiée. Vous serez avisé par courrier lorsque la procédure de réparation et les pièces seront disponibles. Si vous avez besoin de plus d’information au sujet de ce rappel, d’un remboursement pour avoir remédié sans préavis au problème associé à ce rappel, ou rencontrez des difficultés à obtenir un rendez-vous pour cette réparation, veuillez communiquer avec Peterbilt Motors Company, 1700 Woodbrook St, Denton, TX 76205, à l’attention du département du service à la clientèle. Pour de l’information additionnelle au sujet de ce rappel, vous pouvez communiquer avec Transport Canada au 1-800-333-0510. La loi fédérale nécessite de tout bailleur de véhicules qui reçoit cet avis de rappel d’en faire parvenir une copie à toute personne ayant loué un véhicule et ce, dans un délai de dix jours. Si ce véhicule ne vous appartient plus, nous apprécierions que vous nous fassiez part du nom du nouveau propriétaire, si vous le connaissez. Veuillez faire parvenir toute information relative au nouveau propriétaire et son adresse à PBDiv.Warranty.Docs@paccar.com. Nous nous excusons pour tout inconvénient causé par cette procédure préventive et vous remercions de votre participation afin d’aider Peterbilt à offrir les plus hauts niveaux de satisfaction de la clientèle et d’expertise de service. Nous apprécions votre entreprise ainsi que votre constante fidélité envers Peterbilt et son réseau de concessionnaires. Les produits Peterbilt se distinguent en étant leader de l’industrie en matière de qualité, performance et fiabilité et nous vous remercions de faire d’un Peterbilt votre camion préféré. Salutations, Michelle Ponsonby Directrice du service à la clientèle Peterbilt Motors Company February 17, 2023 / 17 février 2023 Subject: Safety Recall: 22PBF – 579 MLU Molded Hood Mirror Transport Canada Recall: 2022-729 EXPIRATION DATE: NONE This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page. Dear Peterbilt Customer, This notice is sent to you in accordance with the requirements of the Motor Vehicle Safety Act. This is to inform you that your vehicle may contain a defect that could affect the safety of a person. Peterbilt has decided that a defect, which relates to motor vehicle safety, exists in certain model 579 MLU chassis built between 09/16/2021 and 01/31/2022 that are equipped with optional, molded hood mirrors built without a wire harness or tether. These hood mirrors may experience a pivot joint failure due to molding flaws resulting in foreign object debris on the roadway, increasing the risk of a crash and/or injury. These failures can occur with no prior warning. What is the problem? Model 579 MLU Molded Hood Mirror assemblies built without a wire harness or tether may have molding flaws in the mirror pivot joint which may cause hardware to backout or molded stem may break. What will your dealer do? When parts are available, your dealer will replace the necessary parts per the decided repair procedure. What should you do? There is no action required on your part at this time. You will receive a letter notifying you when the parts are available. Peterbilt Motors Company has initiated this recall to remedy the issue at no charge to you. Currently, the parts are not available to correct this condition. However, Peterbilt is required to nofify customers of the existence of the identified safety defect. You will be notified by mail when the repair procedure and parts become available. 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: Peterbilt Motors Company, 1700 Woodbrook St, Denton, TX 76205, Attn: Customer Service Department. For additional information about the recall, you can contact Transport Canada at 1-800-333-0510. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If you no longer own this vehicle, we would appreciate your advising us of the new owner. Please send all known ownership and address changes to PBDiv.Warranty.Docs@paccar.com. We apologize for any inconvenience this preventive procedure may cause and thank you for your participation in helping Peterbilt provide the highest levels of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to Peterbilt and its dealer network. Industry-leading quality, performance and reliability are hallmarks of Peterbilt products, and we thank you for making Peterbilt your truck of choice. Sincerely, Michelle Ponsonby Director of Customer Service Peterbilt Motors Company IMPORTANT SAFETY RECALL IMPORTANT RAPPEL DE SÉCURITÉ Scan this QR code to open the Peterbilt Dealer Locator. Balayez ce code à barres afin d’accéder à Dealer Locator de Peterbilt AHEEEHA CJDHENJNDLEFJHIDO AHEEEHA BNFFFNB MGAOALIKAKBON M A BNFFFNB FOBAOCFH DFNHJDGCCBKADJAGMAINALAB ALLJFHFHEBDIANDGHJ EJOHGEGMKHBMD IEMDMFED JNMCEJHOE AFCDOGANADFML MFOEDEFHMLGBKOEIDLMLBDNJENIEOCHFI MFFNFNE ACOBBOMLCEMI KDMAHFHACOO A BBB A JCLKDADFBCG JHDAAFEAGNHHC HHHHHHH HH H H HH H H H H H H Our records indicate that these vehicles are affected by 22PBF and are owned by

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22PBF Page 1 of 3 22PBF – 579 MLU Molded Hood Mirror Safety Recall Author: Gunnar Nelson 2/7/2023 Red Field Title: Used in Recalls Purple Text – KW Only (When Published to PACCARnet) Blue Text – PB Only (When Published to PACCARnet) Black Text – Applies to Both Divisions Title (metadata) 22PBF – 579 MLU Molded Hood Mirror Safety Recall 22PBF – 579 MLU Molded Hood Mirror Safety Recall Description 22PBF – 579 MLU Molded Hood Mirror Safety Recall Bulletin No. 22PBF Bulletin Category Replacement Parts (Recall) Supplier (Recall Only) Velvac Image Service Subject 22PBF – 579 MLU Molded Hood Mirror Safety Recall Section Cab – 02 22PBF – 579 MLU Molded Hood Mirror Safety Recall Page 2 of 3 What’s New Abstract Safety Recall – A mirror with a pivot joint break that does not have a wire harness or tether can result in foreign object debris on the roadway increasing the risk of a crash and/or injury. Revision Condition / Complaint / Introduction Certain model 579 MLU trucks equipped with molded hood mirrors may experience a mirror, pivot-joint failure. Within that population of trucks, there are mirrors that do not have a wire harness or tether to keep the upper half of the mirror with the truck if the pivot joint fails. Chassis Affected / Situation PB – 2,995 (2,643 US and 430 CAN) model 579 MLU MY 2022-2023 with molded hood mirror. PPD – Component Sales – Chassis list by Engine Serial Number or EMY. Chassis VINs may not be available. Service Action / Resolution Safety Recall – This bulletin will be updated when the repair procedure and parts are available. Warranty 22PBF – 579 MLU Molded Hood Mirror Safety Recall Page 3 of 3 Parts Background KW Chassis List PB Chassis List KW US Customer Letter PB US Customer Letter KW Canada Customer Letter (English & French) PB Canada Customer Letter (English & French) Procedures Document (Shared KW & PB) Procedure Links Channels KWUS ☐ KWCA☐ KWGS☐ PBUS☒ PBCA☒ Same bulletin published to KW & PB regions? No Publish On 2/3/2023

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3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 1/6  Edit  Clone 22PBF – 579 MLU Molded Hood Mirror Safety Recall Number 22PBF Supplier Velvac Description 579 MLU Molded Hood Mirror Safety Recall Date 3/13/2023 What’s New Safety Recall – A mirror with a pivot joint break that does not have a wire harness or tether can result in foreign object debris on the roadwayincreasing the risk of a crash and/or injury. Introduction Certain model 579 MLU trucks equipped with molded hood mirrors may experience a mirror pivot-joint failure. Within that populati on oftrucks, there are mirrors that do not have a wire harness or tether to keep the upper half of the mirror with the truck if the pivot joint fails. Situation 2,995 (2,565 US and 430 CAN) model 579 MLU MY 2022-2023 with molded hood mirror. Resolution Campaign Inspect mirrors for presence of wire harness or tether. Replace mirror assembly if no wire harness or tether is present. 3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 2/6 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. Warranty PETERBILT WARRANTY STATEMENT There is no ti me or mileage limit for this recall. Peterbilt will pay for parts at dealer net plus applicable mark up and labor. All vehicles within this recall will need to have the hood mirrors inspected for the presence of a wire harness or tether. If neither is present,the mirror must be replaced. NOTE If a truck arrives at the dealer to have repairs related to 22PBFperformed and it has a mirror with a broken pivot joint that is equipped with a wire harness or tether: T his bulleti n does not apply, and repair will need to be processed through standardwarranty. NOTE A picture of the serial number for the mirror being replaced must beatt ached to the warranty claim or the claim may be denied. Take-Off Parts Dispositi on: Destroy take-off parts 30 days aft er claim is paid 3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 3/6 PRWS CLAIM CODING CampaignCode: 22PBF CampaignType: Safety Recall ClaimCategory : Truck Repair Type: Proacti ve CustomerConcernCode: 62 Causal Code: 23 Correcti veActi on Code: 12 ResponsibilityCode: SUPPLIER FailureLocati on: 002-010-006 Causal Part: L59-6006-100 (BlackMirror Housing) L59-6006-100R (BlackMirror Housing) L59-6006-200 (ChromeMirror Housing) L59-6006-200R (ChromeMirror Housing) SupplierCode: 18331AA SRT Code: B22-PFA (0.1 hrs.) Inspecti on only of thehood mirrors per bulleti nprocedure. B22-PFB (0.3 hrs.) Inspecti on andReplacement of bothhood-mounted mirrors(Black Mirror Housings). B22-PFC (0.2 hrs.) Inspecti on andReplacement of onehood-mounted mirror – 3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 4/6 Left Hand Side (BlackMirror Housing). B22-PFD (0.2 hrs.) Inspecti on andReplacement of onehood-mounted mirror –Right Hand Side (BlackMirror Housing). B22-PFE (0.3hrs.) Inspecti on andReplacement of bothhood-mounted mirrors(Chrome MirrorHousings). B22-PFF (0.2hrs.) Inspecti on andReplacement of onehood-mounted mirror –Left Hand Side(Chrome MirrorHousing). B22-PFG (0.2hrs.) Inspecti on andReplacement of onehood-mounted mirror –Right Hand Side (ChromeMirror Housing). Procedure Please follow your dealership’s safety procedures and precauti ons to ensure the vehicle can be safely repaired and maintained. Please see repair procedure in the Links secti on of this bulleti n. 3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 5/6 NOTE A picture of the serial number for the mirror being replacedmust be att ached to the warranty claim or the claim may bedenied. Parts Parts are available from PACCAR Parts. Prior to ordering parts, please verify if there is an existi ng backorder in your system. Existi ng backorders will be fulfi lled. Please be surethat backorders are allocated to support this campaign. PACCAR Parts is acti vely working with the supplier to increase inventory levels to meet demand related to this bulleti n. Due to demand, PACCAR Parts is currently limiti ng dealer orders for all mirror part numbers involved in this campaign to one of each, per 3/20/23, 8:27 AM Federal Recall Bulletin https://paccarnet.sharepoint.com/sitepages/wtyfedrecallbltndetail.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3J3YXJyYW50eSIsImxpc3R… 6/6 dealer per day. Links 22PBF Chassis List 22PBF Inspecti on and Repair Procedures 22PBF US Customer Lett er 22PBF Canadian French Customer Lett er 22PBF Canadian English Customer Lett er Revision History 03/17/2023 – Changed take-off parts dispositi on from return to supplier to destroy 30 days aft er claim is paid.

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PETERBILT MOTORS COMPANY A MCIOIII. COMPANY 1700 WOODBROOK STREET DENTON. TEXAS 76205-7864 940-59 1-4000 Safety Recall Notice: 22PBF IMPORTANT SAFETY RECALL INFORMATION Issued in Accordance With Federal Law N**H**T*S A -U.S.Oeporment al …. ,., 1••ll•1 •l•l1•1l0lll,,,1l •l•ll •l1ll• loll1l11llllll,11l ll1l• ll•1 11I I0331MZP8F msT-0.ASS – U.S. f05Wl: l’M) <lM/11(). (ll Pem-.No. 4S9 =”‘II m :;! :a Tl P1 m 0001 n ~ r►- rz 0 –I nm IMPORTANT SAFETY RECALL March 24, 2023 Subject: Safety Recall: 22PBF – 579 MLU Molded Hood Mirror NHTSA: 22V940 EXPIRATION DATE: NONE This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page. Dear Peterbilt Customer, Peterbilt has decided that a defect, which relates to motor vehicle safety, exists in certain Model Year 2022-2023 model 579 MLU chassis built between 09/16/2021 and 01/31/2022 that are equipped with optional, molded hood mirrors built without a wire harness or tether. These hood mirrors may experience a pivot joint failure resulting In foreign object debris on the roadway, Increasing the risk of a crash and/or injury. These failures can occur with no prior warning. What is the problem? What w/11 your dealer do? What should you do? MY22- 23 model 579 MLU Molded Hood Mirror assemblies built without a wire harness or tether may experience a mirror pivot joint failure. Inspect optional, molded, hood mirrors for presence of wire harness or tether. If no harness or tether Is present, mirrors will be replaced with improved versions that are built with a wire harness or tether. Please contact your closest dealer to schedule this repair. Peterbilt Motors Company has initiated this recall to remedy the issue at no charge to you. Your dealer will inspect the optional, molded hood mirrors for the presence of a wire harness or tether. If no harness or tether is present, mirrors will be replaced with improved versions that are built with a wire harness or tether. To find your Peterbilt dealer, please visit the Dealer Locator at www.Peterbilt.com or scan the QR code. When contacting your Peterbilt dealer, reference the Safety Recall number and the NHTSA number. This repair may take up to 1 hour of labor depending on dealer scheduling. 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: Peterbilt Motors Company, 1700 Woodbrook St, Denton, TX 76205, Attn: Customer Service Department. If you conclude that Peterbilt has not enabled you to remedy this defect in a reasonable time and without charge, you may submit a complaint to: Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590, or call the toll free Vehicle Safety Hotlne at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. If you no longer own this vehicle, we would appreciate your advising us of the new owner. Please send all known ownership and address changes to PBDiy.Warranty.Docs@paccar.com. We apologize for any inconvenience this preventive procedure may cause and thank you for your participation in helping Peterbilt provide the highest levels of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to Peterbilt and its dealer network. Industry-leading quality, performance and reliability are hallmarks of Peterbilt products, and we thank you for making Peterbilt your truck of choice. Sincerely, -wt.~?~ Michelle Ponsonby Director of Customer Experience Peterbilt Motors Company Our records Indicate that these vehicles are affected by 22PBF and are owned by Scan this QR code to open the Peterblt Dealer Locator. II

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-940 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : PACCAR Incorporated Submission Date : APR 13, 2023 NHTSA Recall No. : 22V-940 Manufacturer Recall No. : 22PBF Manufacturer Information : Manufacturer Name : PACCAR Incorporated Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004 Company phone : 940 591 4220 Population : Number of potentially involved : 2,565 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2022-2023 Peterbilt 579 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : ALL Power Train : DIESEL Descriptive Information : Model 579 (MLU) trucks built with optional molded hood mirror before all assemblies were built with wire harness or tether. Production Dates : SEP 16, 2021 – JAN 31, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Certain trucks are equipped with molded hood mirrors that may experience a pivot joint failure. Within that population of trucks there are mirrors that do not have a wire harness or tether to keep the upper half of the mirror with the truck if the pivot joint fails. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A mirror with a pivot joint break without a wire harness or tether can result in foreign object debris on the roadway increasing the risk of a crash and/or injury. Description of the Cause : Molding flaws in the mirror pivot joint may cause hardware to backout or molded stem may break. Identification of Any Warning that can Occur : No prior warning. Involved Components : Part 573 Safety Recall Report 22V-940 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Mirror-Hood Component Description : Model 579 MLU Molded Hood Mirror Component Part Number : L59-6006-100, L59-6006-100R, L59-6006-200, L59-6006-200R Supplier Identification : Component Manufacturer Name : Velvac Inc. Address : 2405 S Calhoun Rd New Berlin Wisconsin 53151 Country : United States Chronology : 10-27-2022: Engineering notified Safety & Compliance that warranty claims were being received for hood mirrors breaking at the pivot joint. 10-28-2022 Engineering provided list of trucks built with L59-6006 mirror. 11-09-2022 Engineering warranty group provided warranty claims for Safety & Compliance to review. 11-16-2022 Engineering warranty group provided updated warranty claims. Engineering provided details on pivot joint failures and corrective actions at the supplier. 11-17-2022 Engineering forwarded Safety & Compliance questions on to the supplier. 11-21-2022 Supplier answered questions Safety & Compliance had. 11-22-2022 Safety Committee reviewed investigation. They requested that the mirror build dates and failures be compared to determine if the failure rate varied throughout the suspect time frame. 11-23-2022 Customer service group provided US/Canada registry for suspect chassis list. 11-30-2022 Met with supplier to review warranty claims and returned parts to help determine how each failed and whether they had a wire harness or tether. 58 warranty claims out of 28,734 mirrors built for a 0.2% failure rate. 12-13-2022: Safety Committee determines a safety related defect exists. As of 12-13-2022, PACCAR received 77 warranty claims and 1 report about 3 trucks in the field that may be Part 573 Safety Recall Report 22V-940 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 related between January 2021 and December 2022. Zero reports of deaths or injuries have been received. Description of Remedy : Description of Remedy Program : Paccar will notify owners, and dealers will inspect for the presence of a wire harness or tether. If neither is present, dealers will replace the hood mirror assembly. 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 : Remedy components have a wire harness or tether. Identify How/When Recall Condition was Corrected in Production : All mirrors in current production have a wire harness or tether to mitigate mold process errors. Harnesses were installed starting 11/20/2021 and tethers started 6/28/2022. Recall Schedule : Description of Recall Schedule : Customers will be notified within 60 days. Planned Dealer Notification Date : FEB 14, 2023 – FEB 14, 2023 Planned Owner Notification Date : FEB 14, 2023 – FEB 14, 2023 * NR – Not Reported

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