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2022 Mack Terrapro (Te)

Owner reports · Recalls · Investigations

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NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

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Official recalls

5

26V139000 · Engine And Engine Cooling:engine:engine Control Module (ecu/ecm):software

Mar 11, 2026

Mack Trucks, Inc. (Mack) is recalling certain 2022-2027 TerraPro trucks. The engine control unit (ECU) software may allow the engine to start when the transmission is not in Neutral. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect."

Consequence & remedy

Consequence: Starting the vehicle while in gear may cause unexpected vehicle movement, increasing the risk of a crash or injury.

Remedy: Dealers will update the ECU software, free of charge. Owner notification letters were mailed April 14, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0492. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov March 18, 2026.

25V030000 · Service Brakes, Air:antilock

Jan 23, 2025

Mack Trucks, Inc. (Mack) is recalling certain 2010-2018 MRU and 2019-2025 Terrapro towing vehicles. The vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

Consequence & remedy

Consequence: Driving without a functioning anti-lock brake system may result in the trailer not braking as intended, increasing the risk of a crash.

Remedy: Dealers will add an ABS warning light and circuitry, free of charge. Owner notification letters were mailed April 28, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0474.

24V792000 · Electrical System:software; Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Oct 23, 2024

Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Consequence & remedy

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

Additional source detail variants (2)

Electrical System:software

Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

Service Brakes, Hydraulic:antilock/traction Control/electronic Limited Slip:control Unit/module

Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Consequence: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.

22V401000 · Steering

Jun 7, 2022

Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.

Consequence & remedy

Consequence: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.

21V953000 · Parking Brake

Dec 9, 2021

Mack Trucks, Inc. (Mack) is recalling certain 2008-2019 TerraPro (MRU) and 2019-2022 TerraPro (TE) vehicles. A brake control valve air leak into the attached exhaust hose can create excessive back pressure, causing the parking brake to release unexpectedly.

Consequence & remedy

Consequence: The unexpected release of the parking brake may allow the vehicle to rollaway, increasing the risk of a crash.

Remedy: Dealers will remove the exhaust tube and fitting from the valve, free of charge. Owner notification letters were mailed February 8, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0433.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

PE20003 · Vehicle Roll Away

Opened Apr 1, 2020 · Closed Jan 10, 2024

Status: closed (inferred from source dates) · Parking Brake; Parking Brake:conventional:air; Service Brakes, Air:controls; Service Brakes, Air:supply:hoses, Lines/piping, And Fittings

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Additional source detail variants (8)

Parking Brake:conventional:air

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Parking Brake:conventional:air

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Parking Brake

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Parking Brake

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Service Brakes, Air:controls

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Service Brakes, Air:controls

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Service Brakes, Air:supply:hoses, Lines/piping, And Fittings

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.

Service Brakes, Air:supply:hoses, Lines/piping, And Fittings

On April 1, 2020, following information received from the Office of Defects Investigation (ODI) network of fleet contacts, ODI opened PE20-003 to investigate reports of vehicle roll away in certain model year (MY) 2008-2020 Autocar and Mack refuse trucks equipped with certain Bendix PP-1 push-pull pneumatic park brake control valves with a pipe-away exhaust configuration. Prior to ODI’s investigation,[KK(1]  Bendix Commercial Vehicle Systems LLC (Bendix), the subject component manufacturer, published two related technical service bulletins (TSBs): Bendix Push-Pull Type Control Valves Service Data SD-03-3611 Rev. 007 (2019-03) and Bendix PP-1 & PP-8 Park Control Valve Wear and Replacement Notice Technical Bulletin TCH-003-056 (2019-11-20). ODI sent Information Request (IR) letters to motor vehicle manufacturers Autocar LLC (Autocar) and Volvo Trucks North America/Mack Trucks, Inc. (Volvo/Mack) and motor vehicle equipment manufacturer Bendix. IR response data from all three manufacturers was analyzed and cross-referenced to gain further understanding. To date, ODI is aware of 5 vehicle roll-away incidents related to the alleged defect condition in the subject vehicles equipped with the subject components, resulting in 4 crashes and 1 injury. On December 9, 2021, Volvo/Mack notified the agency of a safety recall (21V953) to address a safety defect in certain MY 2008-2019 TerraPro (MRU) and MY 2019-2022 TerraPro (TE) trucks originally equipped with the subject components. [KK(2] On January 1, 2023, Autocar notified the agency of a safety recall (23V023) to address a safety defect in certain MY 2008-2020 ACX (Xpeditor), MY 2012-2020 ACMD (Xpert), MY 2010-2020 ACTT (Xspotter), MY 2008-2010 WX and MY 2008-2010 WXLL trucks. Volvo/Mack and Autocar's recall remedies involve removing the vent line fitting threaded into the exhaust port of the subject PP-1 valve. [VD(3] Both Autocar and Mack have stopped equipping new refuse trucks with park control valves using the exhaust pipe-away configuration. After discussions between ODI and Bendix concerning ways to prevent new PP-1 valves from being sold and installed with a potential for the exhaust to become restricted, Bendix will take the following actions: 1) issue a letter to all original equipment (OE) customers with important safety information warning them about the safety risk of attaching plumbing to the exhaust port when the subject component is used as a park control valve; and 2) affix a warning label on all aftermarket parts warning not to install pipe-away exhaust port plumbing. In view of the recalls being conducted by Volvo/Mack and Autocar, and the actions taken by Bendix, ODI has closed this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist in equipment or other model or MY vehicles that have not been recalled. The agency reserves the right to take further action if warranted.