22PBC – ABS Telltale Not Enabled – 2023 Peterbilt 535

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Our records indicate that these vehicles are affected by 22PBC and are owned by July 22, 2022 Subject: Safety Recall: 22PBC – ABS Telltale Not Enabled NHTSA: #22V424 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 non-compliance exists in certain 2020 through 2023 Model Year, 536 and 537 chassis built from 11/4/2022 through 1/7/2022. ABS telltale does not illuminate in the digital display during self-test, and does not indicate to the operator any malfunction of the ABS has occurred. This is non-compliant with US regulation FMVSS 105. What is the problem? ABS telltale does not illuminate in the digital display during self-test. What will your dealer do? When the repair procedure and software are available, your dealer will reprogram the affected modules. What should you do? There is no action required on your part at this time. You will receive a letter notifying you when the repair procedure and software are available. Peterbilt Motors Company has initiated this recall to remedy the issue with no charge to you. Currently, the repair procedure is unavailable to correct this condition. However, Peterbilt is required to notify customers of the existence of the identified safety defect. You will be notified by mail when the repair procedure and software 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 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 Hotline 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.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 Interim Notification Scan this QR code to open the Peterbilt Dealer Locator. 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

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No. 22PBC Page 1 of 3 Recall – 22PBC ABS Telltale not Enabled: NHTSA #22V424, TC #2022-314 Author: Darrell Cook 11/8/2022 Title (metadata) 22PBC: 22PBC ABS Telltale not Enabled NHTSA #22V424, TC #2022-314 Description ABS Telltale not Enabled Bulletin No. 22PBC Bulletin Category Field Service Supplier (Recall Only) Image Service Subject 22PBC ABS Telltale not Enabled NHTSA #22V424, TC #2022-314 Section Brakes – 13 What’s New Abstract Non-Compliance Recall – The repair procedure is now available. On certain vehicles, the ABS telltale is not enabled and will not illuminate during self-test or any ABS malfunction. These vehicles do not comply with US regulation FMVSS 105 or Canadian regulation CMVSS 105, which require an indicator lamp for antilock brake system malfunction. Unknowingly operating a vehicle with inoperative ABS may increase the risk of a crash. Revision Condition / Chief Complaint ABS Telltale / Warning message on digital dash does not illuminate during self-test. ABS Telltale / Warning message will also not illuminate during an ABS fault or malfunction. 22PBC ABS Telltale not Enabled NHTSA #22V424, TC #2022- 314 22PBC Page 2 of 3 Chassis Affected 4 (1 US / 3 Canada) Model Year 2020-2023 536 and 537 chassis built from November of 2019 through January of 2022 equipped with hydraulic brakes. Service Action Campaign Service all affected chassis that enter your dealership, even if the customer has no issue with the chassis. • Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on the list. • In Service Management, select Campaign 22PBC to add it to the case. If the unit is released back into service without performing the repair, make sure to also release the Campaign in Service Management. • If you are not using Service Management to start repair orders, review SIR for “Complete” or “In Process” next to the “22PBC” campaign code prior to performing this repair. • Follow the procedures to re-enable the ABS telltale. Warranty There is no time or mileage limit for this recall. Peterbilt will pay for parts at dealer net plus applicable mark up and labor: • 0.3 hours labor to program driver digital display with DAVIE 4. Use Quick Claim Code 22PBC. PRWS CLAIM CODING Campaign Code: 22PBC Campaign Type Field Repair Claim Category: Truck Repair Type Proactive Customer Concern Code 192 Causal Code 51 22PBC ABS Telltale not Enabled NHTSA #22V424, TC #2022- 314 22PBC Page 3 of 3 Corrective Action Code 23 Responsibility Code: Camp Failure Location 013-011-079 Causal Part Q97-6022 Supplier Code SRT Code B22-PBC 0.3 hrs – update chassis software via DAVIE 4 Display in SIR Always Visible Editable by dealer? No KW AutoPay Choose an item. PB AutoPay Yes Parts Software only. No parts required. Background Procedure Please follow your dealership’s safety procedures and precautions to ensure the vehicle can be safely repaired and maintained. Please see attached procedure in Links section. Links Dealer\Chassis List Procedure U.S. Customer Letter Canada English Customer Letter Canada French Customer Letter Channels KWUS ☐ KWCA☐ KWGS☐ PBUS☒ PBCA☒ Same bulletin published to KW & PB regions? No Publish On Click or tap to enter a date.

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 Edit  Clone 22PBC ABS Telltale not Enabled NHTSA #22V424, TC#2022-314 Number 22PBC Description 22PBC ABS Telltale not Enabled NHTSA #22V424, TC #2022-314 Date 7/8/2022 What’s New Non-Compliance Recall – The ABS telltale was not enabled on certain vehicles, so the ABS telltale would neverilluminate on aff ected vehicles, even in the event of an ABS malfuncti on. This is non-compliant with US regulati on FMVSS 105 and Canadian Regulati on CMVSS 105, which requires anindicator lamp for anti lock brake system malfuncti on. Introduction ABS Telltale / Warning message on digital dash does not illuminate during self-test. ABS Telltale / Warning messagewill also not illuminate during an ABS fault or malfuncti on. Situation 4 (1 US / 3 Canada) Model Year 2020 through 2023, 536 and 537 chassis built from November of 2019 throughJanuary of 2022 equipped with hydraulic brakes. Resolution Non-Compliance Recall This bulleti n will be updated when the repair procedure and parts 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 ornoncompliance has been corrected.

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Our records indicate that these vehicles are affected by 22PBC and are owned by Subject: Safety Recall: 22PBC – ABS Telltale Not Enabled NHTSA: #22V424 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 certain model year 2020 through 2023, 536 and 537 chassis, manufactured during 11/4/2022 through 1/7/2022, fail to conform to Federal Motor Vehicle Safety Standard (“FMVSS”) No. 105 – Hydraulic and Electric Brake Systems. The ABS telltale is not enabled and does not illuminate in the digital display during self-test or any ABS malfunction. Unknowingly operating a vehicle with inoperative ABS may increase the risk of a crash. What is the problem? ABS telltale does not illuminate in the digital display during self-test or any ABS malfunction. What will your dealer do? Update the digital display software. What should you do? Please contact your Peterbilt dealer to schedule this repair. Peterbilt Motors Company has initiated this recall to remedy the issue at no charge to you. Your dealer will update the software of the digital display. Please contact your Peterbilt dealer to schedule an appointment for these services. 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 Hotline 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.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 Scan this QR code to open the Peterbilt Dealer Locator. 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

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-424 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : PACCAR Incorporated Submission Date : JUN 15, 2022 NHTSA Recall No. : 22V-424 Manufacturer Recall No. : 22KWC and 22PBC Manufacturer Information : Manufacturer Name : PACCAR Incorporated Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004 Company phone : 940 591 4220 Population : Number of potentially involved : 3 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Peterbilt Model 535 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The affected population was determined by identifying vehicles with hydraulic brakes that had the ABS telltale parameter disabled. Production Dates : JAN 13, 2022 – JAN 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2022-2022 Kenworth T180 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The affected population was determined by identifying vehicles with hydraulic brakes that had the ABS telltale parameter disabled. Production Dates : APR 22, 2021 – APR 22, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2023-2023 Kenworth T280 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The affected population was determined by identifying vehicles with hydraulic brakes that had the ABS telltale parameter disabled. Production Dates : JAN 07, 2022 – JAN 07, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-424 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Noncompliance : Description of the Noncompliance : The ABS telltale was not enabled on certain vehicles, so the ABS telltale would never illuminate on affected vehicles, even in the event of an ABS malfunction. This is noncompliant with FMVSS 105, which requires an indicator lamp for antilock brake system malfunction. FMVSS 1 : 105 – Hydraulic and electric brake systems FMVSS 2 : NR Description of the Safety Risk : On affected vehicles, the driver may not be informed of a malfunction of the ABS system. This may increase the risk of a crash. Description of the Cause : The parameter which enables the ABS telltale was inadvertently disabled. Identification of Any Warning that can Occur : The driver may notice that the ABS telltale is not briefly illuminated when the key is turned on. Involved Components : Component Name 1 : ABS Telltale Parameter Component Description : Parameter which enables function of ABS Telltale Component Part Number : Part number does not exist Supplier Identification : Component Manufacturer Name : PACCAR Address : 777 106th Ave NE Bellevue Washington 98033 Country : United States Chronology : 02-01-2022: Paccar Plant identifies one vehicle which does not have the ABS telltale enabled. Engineering begins to investigate, and identifies the issue is isolated to vehicles with hydraulic brakes, which use different parameter settings. All vehicles at Paccar Plants held for corrective action. Investigation opened. 03-15-2022: Permanent corrective action implemented. Investigation continues. 04-11-2022: Affected population updated and under review. 06-08-2022: Investigation summarized and affected population firmed. 06-09-2022: Safety committee meeting held. The committee concurs that a safety related noncompliance Part 573 Safety Recall Report 22V-424 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 exists and the affected population shall be recalled. Description of Remedy : Description of Remedy Program : Paccar will notify customers and dealers, and will complete a software update to correct the parameter setting. This will enable the ABS telltale to function properly per regulatory requirements. Owners who incurred costs to obtain a remedy for the problem addressed by 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 : Vehicles with the remedy will show the ABS telltale parameter as enabled. Identify How/When Recall Condition was Corrected in Production : Engineering documentation has been updated to ensure the ABS telltale is enabled on vehicles with hydraulic brakes and ABS. All vehicles manufactured on or after January 14, 2022 have the ABS telltale enabled. Recall Schedule : Description of Recall Schedule : Customers will be notified within 60 days. Planned Dealer Notification Date : AUG 14, 2022 – AUG 14, 2022 Planned Owner Notification Date : AUG 14, 2022 – AUG 14, 2022 * NR – Not Reported

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