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NHTSA ID Number: 11014762

Manufacturer Communication Number: E321

TSB/Document Date: 2025-03-04


Summary

Certain chassis equipped with a PACCAReBay logo MX-11 EMY18 engine are eligible to receive software improvements to increase vehicle uptime and functionality of emissions fault detection. The software updates will allow Forward NOx sensor deviations to be detected prior to OBD Emission Limit (OBDEL) exceedance.


2/28/25, 9:07 AM

Emission Service Bulletin

E321 - PACCAReBay logo MX-11 EMY18 Manufacturer Self-Test Software Update
2/27/2025

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E321

Section
Engine - 45

Subject
PACCAReBay logo MX-11 EMY18 Manufacturer Self-Test Software Update

Whats New Abstract
Chassis equipped with an EMY18 PACCAReBay logo MX-11 engine are eligible to receive software improvements to increase vehicle uptime and functionality of
emissions fault detection. The following area will be updated:
Allow Forward NOx sensor deviations to be detected prior to OBD Emission Limit (OBDEL) exceedance.
Campaign start date: 02/28/2025

Condition
Chassis equipped with an EMY18 PACCAReBay logo MX-11 engine are eligible to receive software improvements to increase vehicle uptime and functionality of
emissions fault detection. The following area will be updated:
Allow Forward NOx sensor deviations to be detected prior to OBD Emission Limit (OBDEL) exceedance.
The issue listed above will not result in a Malfunction Indicator Lamp (MIL) or an issue with vehicle functionality/drivability.
Campaign start date: 02/28/2025

https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

Chassis Affected
1,461 (1,418 U.S. and 43 Canada) Model Year 2018-2020 365, 520, 567, and 579 chassis with an EMY18 PACCAReBay logo MX-11 engine.

Action
Emissions Recall
1. Service all chassis affected that enter your dealership, even if the customer has no issue with the chassis.
2. Review the attached chassis list for your dealer code and schedule your customer(s) for service if their chassis is on the list.
3. In Service Management, select Campaign E321 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.
4. If you are not using Service Management to start repair orders, review SIR for “Complete” next to the E321 campaign code prior to performing this
repair.
5. Campaign 43-072 MUST be completed prior to performing campaign E321.

Check SIR to determine if campaign 43-072 is open for the chassis you are working on.
If 43-072 is open, please refer to the bulletin and complete all necessary repairs and software updates per bulletin procedures.
Once all repairs /updates for 43-072 are complete, continue with the procedures in this bulletin.
If 43-072 shows complete or does not apply to your chassis, continue with the procedures in this bulletin.
6. Follow the procedures attached in the Links section to update software for the PCI-2 and EAS-4.

Warranty
Starting on 02/28/2025 this campaign does not expire.

https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

PeterbilteBay logo will pay for labor:
For Dealers using the PRWS Warranty Application, select the Recommended Repair from the Recommended Repair section.

FOR NON-CALIFORNIA REGISTERED CHASSIS
0.5 hours labor to connect battery charger, connect DAVIE4, process a file through PVP, and update PCI and ACM software per bulletin procedures.
Use Recommended Repair E321A.
FOR CALIFORNIA REGISTERED CHASSIS
0.6 hours labor to connect battery charger, connect DAVIE4, process a file through PVP, update PCI and ACM software, and complete California Proof
of Correction form per bulletin procedures. Use Recommended Repair E321B.

https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

For supplemental repairs file a long form claim and manually enter E321 in the “Campaign Code” field.
File the claim within 7 days in accordance with the Warranty Policy.
PeterbilteBay logo dealers may perform repairs on KenwortheBay logo chassis however, Recommended Repair codes do not apply. For KenwortheBay logo chassis repairs, file a
long form claim and use E321 in the “Campaign Code” field.
Take-Off Parts Disposition: N/A

​PRWS CLAIM CODING ​​​
Campaign
​E321
Code:

​ ampaign
C
Type:

​ laim
C
Engine
Category:

​Repair Type: ​Proactive

​029 - Does
Customer
not
Concern
​Causal Code:
Operate
Code:
Properly

​Field Repair

​59
Requires
Program
Update

​23 ​ orrective
C
Program/ ​Responsibility
Action
​CAMP
Reprogram/ Code:
Code:
Reflash
F​ ailure
​045-021Location: 003
S​ upplier
Code:

​N/A

​Causal Part:

​2298833PEX

​SRT Code:

​ 24-50A
B
0.5 hours
Bulletin
E321 Connect
battery
charger,
connect
DAVIE4,
process a

https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

file through
PVP, and
update PCI
and ACM
software
per bulletin
procedures.
FOR NONCALIFORNIA
REGISTERED
CHASSIS.
B24-50B
0.6 hours
Bulletin
E321 Connect
battery
charger,
connect
DAVIE4,
process a
file through
PVP, update
PCI and
ACM
software,
and
complete
California
Proof of
Correction
form per
bulletin
procedure.
FOR
CALIFORNIA
REGISTERED
CHASSIS.
https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

Parts
Parts are available through PACCAReBay logo Parts.
​Quantity

​Part Number ​Description

​ s Needed
A
(For California
​Y53-6109
Registered
Chassis Only)

​Label - Repair

Procedure
Please follow your dealership's safety procedures and precautions to ensure the vehicle can be safely repaired and maintained.
1. Campaign 43-072 MUST be completed prior to performing campaign E321.

Check SIR to determine if campaign 43-072 is open for the chassis you are working on.
If 43-072 is open: refer to bulletin 43-072 and complete all necessary repairs and software updates per bulletin procedures.
Once all repairs/updates for 43-072 are complete, proceed with step 2.
If 43-072 shows complete or does not apply to your chassis: proceed with next step.
2. Perform software update per E321 repair procedure.

https://paccarnet.sharepoint.com/sitepages/emissvcbltin.aspx?ctx=eyJ3ZWJVcmwiOiJodHRwczovL3BhY2Nhcm5ldC5zaGFyZXBvaW50LmNvbS9zaXRlcy9hdXRob3JzZXJ2aWNlIiwibGlzdElkIjoiNGExY…

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2/28/25, 9:07 AM

Emission Service Bulletin

Attachments
E321 - Chassis List
E321 - Software Update Procedure
CUSTOMER LETTERS
E321 - US EPA Customer Letter
E321 - US CARB Customer Letter
E321 - Canadian English Customer Letter
E321 - Canadian French Customer Letter
E321 - Puerto Rico Spanish Customer Letter

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7/7

Select the date.

EMISSIONS RECALL

This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page.
Subject:

E321: PACCAReBay logo MX-11 EMY18 MST Software Update
EXPIRATION DATE: No expiration

Dear PeterbilteBay logo Customer,
You are receiving this notice in accordance with the Canadian Environmental Protection Act of 1999.
PeterbilteBay logo Motors Company has determined that certain Model 365, 520, 567, and 579 chassis manufactured from 05/19/2017 through 01/18/2019
and equipped with EMY18 PACCAReBay logo MX-11 engines fail to conform with emission control requirements. Your vehicle may be releasing pollutants
which exceed regulatory standards. Due to issues with engine and aftertreatment control software, On Board Diagnostics were unable to detect
issues with the Forward NOx Sensor within regulatory limits. This can cause NOx to exceed the regulatory limit.
What is the problem?

Engine and aftertreatment software issues are causing On Board Diagnostics not to detect issues
with the Forward NOx sensor within regulatory limits.

What will your dealer do?

Your dealer will apply software updates to the PCI-2 and EAS-4 modules to allow for Forward NOx
fault detection within regulatory limits.

What should you do?

Contact your dealer immediately to schedule an appointment.

PeterbilteBay logo Motors Company has initiated this notice to remedy the issue with no charge to you. Please contact your PeterbilteBay logo dealer to schedule an
appointment for these services. To find your PeterbilteBay logo dealer, please visit “Find A Dealer” at www.Peterbilt.com or scan the QR code below. When
contacting your PeterbilteBay logo dealer, reference the bulletin number and VIN(s) listed in this letter. This repair may take up to 1 hour of labor depending
on vehicle configuration and dealer scheduling.
If you had this repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a prenotification remedy of the problem associated with this recall.
In order to ensure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as soon as
possible. Failure to do so could be determined as lack of proper maintenance of your vehicle.
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 the PeterbilteBay logo Customer Experience Department at PB.Tech.Pubs.Dept@paccareBay logo.com.
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@paccareBay logo.com.
We apologize for any inconvenience this work may cause and thank you for your participation in helping PeterbilteBay logo provide the highest levels of
customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to PeterbilteBay logo and its dealer network.
Industry-leading quality, performance and reliability are hallmarks of PeterbilteBay logo products, and we thank you for making PeterbilteBay logo your truck of choice.
Sincerely,
Michelle Ponsonby
Director of Customer Experience
PeterbilteBay logo Motors Company

Sélectionner la date

RAPPEL RELATIF AUX ÉMISSIONS

Cet avis concerne votre véhicule. Votre (vos) NIV(s) se trouve(nt) au bas ou au verso de la présente.
Objet : Campagne E321 – Mise à jour du logiciel MST du moteur MX-11 EMY 18 de PACCAReBay logo
DATE D’EXPIRATION : Aucune
Cher client PeterbilteBay logo,
Nous vous faisons parvenir cet avis conformément aux exigences de la Loi canadienne relative à la protection de l’environnement (1999).
PeterbilteBay logo Motors Compagnie a constaté que certains châssis de modèles 365, 520, 567 et 579, fabriqués entre le 19/05/2017 et le
18/01/2019, équipés de moteurs MX-11 EMY 18 de PACCAReBay logo ne sont pas conformes aux exigences relatives au contrôle des émissions. Il
est possible que votre véhicule libère des polluants excédant les normes réglementaires. En raison de problèmes avec le moteur et le
logiciel de contrôle du post-traitement, les services de diagnostics embarqués n’ont pas été en mesure de détecter les problèmes avec le
capteur avant d’oxyde d’azote dans les limites réglementaires. Ceci peut entraîner un dépassement de la limite réglementaire d’oxyde
d’azote.
Quel est le problème ?

Des problèmes de moteur et de logiciel de post-traitement empêchent les services de
diagnostics embarqués de détecter les problèmes avec le capteur avant d’oxyde d’azote
dans les limites réglementaires.

Que fera votre concessionnaire ?

Votre concessionnaire appliquera des mises à jour logicielles aux modules PCI-2 et EAS-4
afin de permettre la détection d’une défectuosité d’oxyde d’azote avant dans les limites
réglementaires.

Que devez-vous faire ?

Communiquer immédiatement avec votre concessionnaire afin de prendre rendez-vous.

PeterbilteBay logo Motors Compagnie a mis en place cet avis afin de remédier au problème, sans frais. Veuillez communiquer avec votre
concessionnaire PeterbilteBay logo afin de prendre rendez-vous pour ces services. Pour trouver votre concessionnaire PeterbilteBay logo, veuillez consulter
‘’Trouver un concessionnaire’’ sur www.Peterbilt.com ou balayer le code à barres. Au moment de communiquer avec votre concessionnaire
PeterbilteBay logo, veuillez-vous référer au numéro de bulletin ainsi qu’au(x) NIV(s) listé(s) à la présente. Cette réparation peut nécessiter jusqu’à
1 heure de main-d’œuvre selon la configuration du véhicule et la disponibilité du concessionnaire.
Si vous avez procédé à cette réparation avant la réception de la présente, vous pourriez être admissible à un remboursement de vos frais
pour avoir remédié sans préavis au problème associé à ce rappel.
Afin d’assurer votre pleine protection selon les clauses de la garantie relative aux émissions, il est recommandé de procéder au service de
votre véhicule le plus rapidement possible. Votre manquement à vous conformer à cette recommandation pourrait être interprété comme un
manque d’entretien approprié de votre véhicule.
Si vous avez besoin de plus d’information au sujet de ce problème, d’un remboursement pour avoir remédié sans préavis au problème
associé à ce rappel ou rencontrez des difficultés à prendre rendez-vous pour cette réparation, veuillez communiquer avec le département
d’expérience-client de PeterbilteBay logo sur PB.Tech.Pubs.Dept@paccareBay logo.com.
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@paccareBay logo.com.
Nous nous excusons pour tout inconvénient causé par cette procédure préventive et vous remercions de votre participation afin d’aider
PeterbilteBay logo 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 PeterbilteBay logo et son réseau de concessionnaires. Les produits PeterbilteBay logo se distinguent en étant leader de
l’industrie en matière de qualité, performance et fiabilité et nous vous remercions de faire d’un PeterbilteBay logo votre
camion préféré.
Salutations,
Michelle Ponsonby
Directrice du service à la clientèle
PeterbilteBay logo Motors Company

Elija la fecha.

RETIRADA POR EMISIONES

Este aviso se aplica a su vehículo. El número o los números de identificación de su vehículo (VIN) se pueden encontrar en la parte inferior de esta
página o en el reverso.
Asunto:

E321: Actualización de software de PACCAReBay logo MX-11 EMY18 MST
FECHA DE VENCIMIENTO: sin vencimiento

Estimado cliente de PeterbilteBay logo:
PeterbilteBay logo Motors Company determinó que ciertos chasis de los modelos 365, 520, 567 y 579 fabricados del 05/19/2017 al 01/18/2019 y equipados
con motores EMY18 PACCAReBay logo MX-11 no cumplen con los requisitos de control de emisiones. Es posible que su vehículo esté emitiendo
contaminantes que superen las normas regulatorias de la Agencia de Protección Ambiental de EE. UU. (Environmental Protection Agency, EPA) y
de California. Debido a problemas con el software de control del motor y el tratamiento posterior, el diagnóstico a bordo no podía detectar
problemas con el sensor delantero de óxido de nitrógeno (NOx) dentro de los límites regulatorios. Este problema puede hacer que los NOx
superen el límite regulatorio.
¿Cuál es el problema?

Los problemas del software del motor y del tratamiento posterior están haciendo que el diagnóstico
a bordo no detecte problemas con el sensor delantero de NOx dentro de los límites regulatorios.

¿Qué hará su distribuidor?

Su distribuidor realizará actualizaciones de software a los módulos PCI-2 y EAS-4 para permitir
que la detección de fallas del sensor delantero de NOx esté dentro de los límites regulatorios.

¿Qué debe hacer usted?

Comuníquese con su distribuidor de inmediato para programar una cita.

PeterbilteBay logo Motors Company ha iniciado este aviso para subsanar el problema sin cargo para usted. Comuníquese con su distribuidor PeterbilteBay logo para
programar una cita a fin de realizar estos servicios. Para encontrar su distribuidor PeterbilteBay logo, consulte “Find a Dealer” (Buscar un distribuidor) en
www.Peterbilt.com o escanee el código QR. Cuando se comunique con su distribuidor PeterbilteBay logo, mencione el número de boletín y los VIN
mencionados en esta carta. Esta reparación podría demorar hasta 1 hora de mano de obra según la configuración del vehículo y el cronograma
del distribuidor.
Si ya le realizaron esta reparación antes de la recepción de esta carta, es posible que usted sea elegible para recibir un reembolso por el costo
de obtener una solución antes de la notificación del problema asociado a esta retirada.
Para los vehículos registrados en California; el centro de servicios le proporcionará un certificado de prueba de corrección. Si el conductor no
es el propietario registrado del vehículo, debe proporcionar una dirección para enviar el certificado por correo. Este certificado es necesario como
condición de registro del vehículo.
Para garantizar la protección plena según las disposiciones de garantía de emisiones, se recomienda que envíe su vehículo para que reciba
servicio lo más pronto posible. De no hacerlo, podría determinarse la falta de mantenimiento correcto del vehículo.
Si necesita más información sobre esta retirada, el reembolso de una solución previa al aviso asociado a esta retirada o tiene alguna dificultad
para coordinar esta reparación, comuníquese con el Departamento de Atención al Cliente de PeterbilteBay logo a PB.Tech.Pubs.Dept@paccareBay logo.com.
La reglamentación federal requiere que todo arrendador que reciba este aviso de retirada envíe una copia de este aviso al arrendatario en un
plazo de diez días. Si ya no es el propietario de este vehículo, agradeceremos si nos proporciona la información del nuevo propietario. Envíe todos
los cambios conocidos de titularidad y dirección a PBDiv.Warranty.Docs@paccareBay logo.com.
Lamentamos cualquier inconveniente que este trabajo pueda causarle y le agradecemos su participación para ayudar a PeterbilteBay logo a brindar los
niveles más elevados de satisfacción al cliente y experiencia en servicio. Valoramos su negocio y apreciamos su continua lealtad hacia PeterbilteBay logo y
su red de distribuidores. La calidad líder en la industria, el rendimiento y la confiabilidad son sellos de los productos PeterbilteBay logo, y le agradecemos por
hacer de PeterbilteBay logo su elección en camiones.

Muy atentamente,

Michelle Ponsonby
Directora de Experiencia del Cliente
PeterbilteBay logo Motors Company

Escanee este código QR para abrir el
buscador de distribuidores PeterbilteBay logo.

Select the date.

EMISSIONS RECALL

This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page.
Subject:

E321: PACCAReBay logo MX-11 EMY18 MST Software Update
EXPIRATION DATE: No expiration

Dear PeterbilteBay logo Customer,
PeterbilteBay logo Motors Company has determined that certain Model 365, 520, 567, and 579 chassis manufactured from 05/19/2017 through
01/18/2019 and equipped with EMY18 PACCAReBay logo MX-11 engines fail to conform with emission control requirements. Your vehicle may be
releasing pollutants which exceed EPA and California regulatory standards. Due to issues with engine and aftertreatment control software,
On Board Diagnostics were unable to detect issues with the Forward NOx Sensor within regulatory limits. This can cause NOx to exceed
the regulatory limit.
What is the problem?

Engine and aftertreatment software issues are causing On Board Diagnostics not to detect
issues with the Forward NOx sensor within regulatory limits.

What will your dealer do?

Your dealer will apply software updates to the PCI-2 and EAS-4 modules to allow for Forward
NOx fault detection within regulatory limits.

What should you do?

Contact your dealer immediately to schedule an appointment.

PeterbilteBay logo Motors Company has initiated this notice to remedy the issue with no charge to you. Please contact your PeterbilteBay logo dealer to
schedule an appointment for these services. To find your PeterbilteBay logo dealer, please visit “Find A Dealer” at www.Peterbilt.com or scan the QR
code below. When contacting your PeterbilteBay logo dealer, reference the bulletin number and VIN(s) listed in this letter. This repair may take up to
1 hour of labor depending on vehicle configuration and dealer scheduling.
If you had this 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.
For vehicles registered in California; you will be provided with a Proof of Correction certificate by the service facility. If the driver is not
the registered owner of the vehicle, please provide an address to mail the certificate to. This certificate will be required as a condition of
vehicle registration.
In order to ensure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as
soon as possible. Failure to do so could be determined as lack of proper maintenance of your vehicle.
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 the PeterbilteBay logo Customer Experience Department at
PB.Tech.Pubs.Dept@paccareBay logo.com or call (940) 591-4043.
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@paccareBay logo.com. You may also use the attached, postage-paid card to document a change of
address or any chassis involved in this recall that have changed ownership.
We apologize for any inconvenience this work may cause and thank you for your participation in helping PeterbilteBay logo provide the highest levels
of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to PeterbilteBay logo and its dealer
network. Industry-leading quality, performance and reliability are hallmarks of PeterbilteBay logo products, and we thank you for making PeterbilteBay logo your
truck of choice
Sincerely,

Michelle Ponsonby
Director of Customer Experience
PeterbilteBay logo Motors Company

Select the date.

EMISSIONS RECALL

This notice applies to your vehicle. Your VIN(s) can be found on the bottom or back of this page.
Subject:

E321: PACCAReBay logo MX-11 EMY18 MST Software Update
EXPIRATION DATE: No expiration

Dear PeterbilteBay logo Customer,
PeterbilteBay logo Motors Company has determined that certain Model 365, 520, 567, and 579 chassis manufactured from 05/19/2017 through
01/18/2019 and equipped with EMY18 PACCAReBay logo MX-11 engines fail to conform with emission control requirements. Your vehicle may be
releasing pollutants which exceed EPA and California regulatory standards. Due to issues with engine and aftertreatment control software,
On Board Diagnostics were unable to detect issues with the Forward NOx Sensor within regulatory limits. This can cause NOx to exceed
the regulatory limit.
What is the problem?

Engine and aftertreatment software issues are causing On Board Diagnostics not to detect
issues with the Forward NOx sensor within regulatory limits.

What will your dealer do?

Your dealer will apply software updates to the PCI-2 and EAS-4 modules to allow for Forward
NOx fault detection within regulatory limits.

What should you do?

Contact your dealer immediately to schedule an appointment.

PeterbilteBay logo Motors Company has initiated this notice to remedy the issue with no charge to you. Please contact your PeterbilteBay logo dealer to
schedule an appointment for these services. To find your PeterbilteBay logo dealer, please visit “Find A Dealer” at www.Peterbilt.com or scan the QR
code below. When contacting your PeterbilteBay logo dealer, reference the bulletin number and VIN(s) listed in this letter. This repair may take up to
1 hour of labor depending on vehicle configuration and dealer scheduling.
If you had this 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.
For vehicles registered in California; you will be provided with a Proof of Correction certificate by the service facility. If the driver is not
the registered owner of the vehicle, please provide an address to mail the certificate to. This certificate will be required as a condition of
vehicle registration.
In order to ensure your full protection under the emission warranty provisions, it is recommended that you have your vehicle serviced as
soon as possible. Failure to do so could be determined as lack of proper maintenance of your vehicle.
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 the PeterbilteBay logo Customer Experience Department at
PB.Tech.Pubs.Dept@paccareBay logo.com.
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@paccareBay logo.com.
We apologize for any inconvenience this work may cause and thank you for your participation in helping PeterbilteBay logo provide the highest levels
of customer satisfaction and service expertise. We value your business and appreciate your ongoing loyalty to PeterbilteBay logo and its dealer
network. Industry-leading quality, performance and reliability are hallmarks of PeterbilteBay logo products, and we thank you for making PeterbilteBay logo your
truck of choice.
Sincerely,

Michelle Ponsonby
Director of Customer Experience
PeterbilteBay logo Motors Company

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SaleBestseller No. 2
TOPDON RLink J2534 Reprogramming Tool, High-Speed J2534 Pass-Thru Programmer, OEM Reprogramming and Diagnostic Tool, Supports J2534/D-PDU/CAN-FD/DoIP, 17+ Vehicle Brands Supported
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Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API


 


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TSB/Document ID: E321

Replacement Service Bulletin Number:

MFR Communication Date: 2025-03-01

MFR Internal Campaign ID/Software Version: E321

Communication Type: Emissions

NHTSA Components: ENGINE

MFR Component System:

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THINKCAR Bidirectional OBD2 Scanner Diagnostic Tool 689BT - All System Scan Tool with Bluetooth 5.0, 3000+ Active Tests,ECU Coding, 34+ Services, FCA, CAN-FD and DoIP, Wireless Update
108 Reviews
THINKCAR Bidirectional OBD2 Scanner Diagnostic Tool 689BT - All System Scan Tool with Bluetooth 5.0, 3000+ Active Tests,ECU Coding, 34+ Services, FCA, CAN-FD and DoIP, Wireless Update
  • [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
  • Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
  • Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
  • 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
  • Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.

Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API


 

Sale
XTOOL D7S Bidirectional Scan Tool, 2026 AI-Assisted OBD2 Scanner Diagnostic Tool with FCA AutoAuth, All System Car Scanner, 39+ Resets, ECU C0ding, PMI, Upgrade of D7, Crankshaft Relearn, CAN FD/DoIP
334 Reviews
XTOOL D7S Bidirectional Scan Tool, 2026 AI-Assisted OBD2 Scanner Diagnostic Tool with FCA AutoAuth, All System Car Scanner, 39+ Resets, ECU C0ding, PMI, Upgrade of D7, Crankshaft Relearn, CAN FD/DoIP
  • Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCAeBay logo Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations
  • 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCAeBay logo AutoAuth: Now supports FCAeBay logo SGW module for ChryslereBay logo, for JeepeBay logo, for DodgeeBay logo (2018+), for FiateBay logo (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for FordeBay logo, for LincolneBay logo, and for MazdaeBay logo ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
  • 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
  • Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMWeBay logo, for Benz and offline for BENZ, for MIT, along with PMI functions for FordeBay logo, for MazdaeBay logo, and for LincolneBay logo. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
  • OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently

Last update on 2026-06-30 / Affiliate links / Images from Amazon Product Advertising API


 

2026 BOSSCOMM IF745 Scanner Diagnostic Tool, Check Engine Code Reader with 6 Resets, ABS Bleeder/Oil/EPB/SAS/Throttle/Battery, Scanner Diagnostic Tool for Vehicles, Lifetime Free Update, Auto VIN
  • 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
  • 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
  • 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
  • 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.​
  • 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.

Last update on 2026-07-02 / Affiliate links / Images from Amazon Product Advertising API


 


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