Campaign 25V-026

Air tanks have an insufficient volume of air for the brake system

Defect 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-888-275-9171) or go to nhtsa.gov.

Source: NHTSA ODI recalls file, campaign 25V026000. Text as published by NHTSA.

Vehicles covered

2 product lines are covered

Owner complaints filed with NHTSA about brakes on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 25V-026
Make	Model	Model years	Complaints on this component
Mack	Pinnacle (pi/pn)	2024	0
Mack	Pioneer PR (4)	2025	0

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

1 service bulletin on this component came first

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

26V-620 Sep 28, 2026
Inaccurate axle load calculations may cause reduced braking performance while transporting smoothbore tanker trailers
26V-261 Apr 23, 2026
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…
25V-867 Dec 15, 2025
Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs
25V-495 Jul 29, 2025
Brake drum and steer axle combination are incompatible, which may cause a loss of brake function
25V-030 Jan 23, 2025
Vehicles are missing the anti-lock brake (ABS) warning light and circuitry that controls the anti-lock brake function for an attached trailer
24V-167 Mar 1, 2024
Park brake light may indicate the incorrect brake status due to an incorrect park brake pressure switch