9 NHTSA safety recalls cover the Mack Pioneer PR (4), across model years 2025–2027. 1 carry a do-not-drive or park-outside warning. Every recall repair is free at any Mack dealer.
Is yours affected? Check your Pioneer PR (4) by VIN — or pick your model year below for every recall, complaint and fix.
Recalls by model year
Of the Mack Pioneer PR (4) model years, the 2026 has the most recalls (9).
Recalls: NHTSA campaigns covering each Mack Pioneer PR (4) model year on this page. Separate scales: compare the shape, not the heights across panels.
| Model year | Recalls |
|---|---|
| 2025 | 7 |
| 2026 | 9 |
| 2027 | 5 |
What these recalls fix, grouped by the vehicle system NHTSA files them under:
Mack is recalling certain 2025-2027 Pioneer PR and Anthem AN trucks due to detachable intake bezels. Check if your VIN is affected.
Mack is recalling certain 2026-2027 Pioneer PR and Anthem AN trucks due to reduced braking performance. Dealers will install new software free of charge.
Mack recalls certain 2026-2027 Pioneer PR trucks due to wheel detachment risk. Stop driving until dealers inspect and repair wheels free of charge.
Mack recalls certain 2025-2027 Pioneer (4) and 2026-2027 Anthem trucks due to rear brake modulator defects that can cause loss of ABS and stability control.
Mack recalls certain 2025-2027 Pioneer (4) trailers due to malfunctioning turn signals. Dealers will update software free of charge.
When the Mack Pioneer PR (4) recalls were issued, by year — a cluster usually means one defect recalled in stages or across a platform.
Owners have filed 0 complaints with NHTSA about the Mack Pioneer PR (4). These are reports, not recalls: they are how NHTSA spots defects.
See Mack Pioneer PR (4) complaints, TSBs and investigations by year →
We have 9 NHTSA safety recalls on record for the Mack Pioneer PR (4), covering model years 2025–2027. The most recent was issued Oct 1, 2026 (Structure).
The 2026 Mack Pioneer PR (4) has the most, with 9 recalls on record. Every model year with a recall is listed on this page with links to each one.
By system: Exterior Lighting (3), Structure (1), Service Brakes, Electric (1), Wheels (1).
1 of these recalls carry an NHTSA do-not-drive or park-outside warning. If your vehicle is covered by one, follow it until the repair is done and ask the dealer about a tow or loaner. Most other recalls let you keep driving, but book the repair promptly.
Run a VIN recall check: enter your 17-character VIN to see the recalls on record for your exact year, then confirm at NHTSA.gov which are still unrepaired on your vehicle. Any Mack dealer can also look it up.
Yes. Federal law requires Mack to fix safety recalls free of charge at any authorized Mack dealer, regardless of the vehicle’s age or how many owners it has had.