Does the 2025 Mack Pioneer PR (4) have any recalls?

11 recalls found in NHTSA data as of September 22, 2026, covering: service brakes, air, exterior lighting, equipment, steering, electrical system, service brakes, hydraulic. Recalls apply to the model and year; whether a particular vehicle is included, and whether it has been repaired, depends on its VIN.

How do I check if my 2025 Mack Pioneer PR (4) recall has been fixed?

Enter your 17-character VIN at nhtsa.gov/recalls, or ask a Mack dealer. Recall repairs are free. NHTSA's VIN search doesn't list recalls that were already repaired.

How many complaints have owners filed about the 2025 Mack Pioneer PR (4)?

0 complaints filed with NHTSA. Complaints are unverified reports from the public that NHTSA uses to decide what to investigate.

2025 Mack Pioneer PR (4) recalls

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

11 recalls found in NHTSA data as of September 22, 2026

For the 2025 Mack Pioneer PR (4). These apply to the model and year, not to one particular vehicle: check your VIN to see whether yours is included and whether it has been repaired.

One of these recalls carries a manufacturer safety advisory to stop driving or to park outside until repaired. See below.

Has your Mack been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

Check your VIN with NHTSA

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.

2025 Mack Pioneer PR (4) recalls, newest first

April 23, 2026NHTSA 26V2610002,772 vehicles potentially affected

Service brakes, air › Antilock › Control unit/module

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-2027 Anthem (4) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC).
Consequence: A loss of anti-lock brakes and electronic stability control increases the risk of a crash or injury.
Remedy: Dealers will inspect the rear brake modulator electrical connectors, install a protective cover, and replace the rear brake modulators, as necessary, free of charge. Owner notification letters were mailed June 8, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0494. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning April 30, 2026.

This recall on nhtsa.gov

April 1, 2026NHTSA 26V20700086 vehicles potentially affected

Exterior lighting › Turn signal

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2027 Anthem (4) trailers. The trailer turn signals may not function properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: Turn signals that do not function properly may fail to indicate the driver's intention to change vehicle direction, increasing the risk of a crash.
Remedy: Dealers will update the turn signal indicator software, free of charge. Owner notification letters were mailed May 7, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0493. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov April 1, 2026.

This recall on nhtsa.gov

November 20, 2025NHTSA 25V803000247 vehicles potentially affected

Exterior lighting › Lighting control module › Software

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (4) and 2025-2026 Pioneer vehicles. The automatic high beams (AHB) may not switch to low beam headlights as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: High beam headlights that do not switch to low beam as intended can reduce visibility for oncoming traffic, increasing the risk of a crash.
Remedy: As an interim action, Mack will update the vehicle software through an over-the-air (OTA) update to disable the AHB feature, free of charge. Owner letters were mailed May 29, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0488. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025.

This recall on nhtsa.gov

November 20, 2025NHTSA 25V80100046 vehicles potentially affected

Equipment › Mechanical

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. The load lock clamps, located on the back of the cab, may loosen and cause the load lock bars to become unsecured.
Consequence: A loose or unsecured load lock bar can result in a loss of cargo, creating a road hazard and increasing the risk of a crash.
Remedy: Dealers will replace the load lock clamps, free of charge. Owner notification letters were mailed December 18, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0489. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 27, 2025.

This recall on nhtsa.gov

September 18, 2025NHTSA 25V622000156 vehicles potentially affected

Exterior lighting › Lighting control module

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. When towing a trailer, the trailer lights may fail to illuminate due to an improperly manufactured body control module.
Consequence: Trailer tail lights and turn signals that do not illuminate as intended can reduce visibility to other drivers, increasing the risk of a crash.
Remedy: Dealers will replace the trailer body input/output module, free of charge. Owner letters were mailed November 19, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0484.Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning September 25, 2025.

This recall on nhtsa.gov

August 11, 2025NHTSA 25V52100032 vehicles potentially affected

Steering

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and 2025-2026 Pioneer vehicles. The dynamic steering and oversteer guidance feature may malfunction and cause a loss of steering control.
Consequence: A loss of steering control increases the risk of a crash.
Remedy: The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.

This recall on nhtsa.gov

January 21, 2025NHTSA 25V02600021 vehicles potentially affected

Service brakes, air › Supply › Reservoir/tank

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 Pinnacle (PI/PN) trucks. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
Consequence: Insufficient air volume can reduce braking performance and increase the risk of a crash.
Remedy: Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed February 10, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0473.

This recall on nhtsa.gov

October 23, 2024NHTSA 24V79200059,338 vehicles potentially affected

Electrical system › Software

Summary: 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.
Components: Electrical system › Software; Service brakes, hydraulic › Antilock/traction control/electronic limited slip › Control unit/module

This recall on nhtsa.gov

July 30, 2024NHTSA 24V567000242 vehicles potentially affected

Seats › Critical fasteners

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 Anthem, Granite, and Pinnacle vehicles equipped with RollTek driver's seat assemblies. The seat pedestal and seat belt attachment may have been improperly tightened.
Consequence: An improperly tightened seat pedestal and seat belt attachment may not restrain the occupant as intended, increasing their risk of injury during a crash.
Remedy: Dealers will replace and tighten the seat pedestal and seat belt attachment bolts, free of charge. Owner notification letters were mailed September 16, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0469.
Components: Seats › Critical fasteners; Seat belts › Critical fasteners

This recall on nhtsa.gov

July 2, 2024NHTSA 24V50400059 vehicles potentially affected

Steering › Linkages › Tie rod assembly

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025 LR, Granite, and Pinnacle vehicles equipped with Composilite EXS20 steerable lift axle suspension assemblies. The tie rod assembly ball stud could have been improperly heat treated and can fail.
Consequence: The ball stud can separate from the vehicle becoming a road hazard, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the tie rod end assemblies as necessary, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0468.

This recall on nhtsa.gov

June 9, 2024NHTSA 24V4240007 vehicles potentially affected

Power train › Axle assembly

Do not drive until repaired

Summary: Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and Pinnacle trucks. The tie rod assemblies may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control.
Consequence: A sudden loss of steering control increases the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been completed. Dealers will inspect and replace the tie rod ends as necessary, free of charge. Owner notification letters were mailed June 17, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0466.
Components: Power train › Axle assembly; Steering › Linkages › Tie rod assembly

This recall on nhtsa.gov

Owner complaints

No owner complaints about the 2025 Mack Pioneer PR (4) were found in NHTSA’s complaint data.

Other Mack Pioneer PR (4) years

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Questions

Does the 2025 Mack Pioneer PR (4) have any recalls?: 11 recalls found in NHTSA data as of September 22, 2026, covering: service brakes, air, exterior lighting, equipment, steering, electrical system, service brakes, hydraulic. Recalls apply to the model and year; whether a particular vehicle is included, and whether it has been repaired, depends on its VIN.
How do I check if my 2025 Mack Pioneer PR (4) recall has been fixed?: Enter your 17-character VIN at nhtsa.gov/recalls, or ask a Mack dealer. Recall repairs are free. NHTSA's VIN search doesn't list recalls that were already repaired.
How many complaints have owners filed about the 2025 Mack Pioneer PR (4)?: 0 complaints filed with NHTSA. Complaints are unverified reports from the public that NHTSA uses to decide what to investigate.