Mack Pioneer PR (4)Years to avoid, problems & recalls

NHTSA has 0 owner complaints and 15 safety recalls on record for the Mack Pioneer PR (4).

Years to avoidNoneBased on weighted complaints Best years—Fewest complaints for their age Owner complaints0—Safety recalls152025–2027 model years

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports. Updated daily. How we score years.

Best & worst years

Mack Pioneer PR (4) years to avoid

Complaints by model year, colored by the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Pioneer PR (4) median. Tap a year for its full report.

0 0 0

'25'26'27

Avoid
Caution
Solid
Best
Not rated

2027Too new–/1000 complaints · 6 recalls 2026Too new–/1000 complaints · 9 recalls 2025Too new–/1000 complaints · 12 recalls

Complaints by system

Most common Mack Pioneer PR (4) problems

All model years combined: 0 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.

15 recalls

Mack Pioneer PR (4) recalls

Newest first. The ring shows the share of affected vehicles repaired, from the manufacturer's latest report to NHTSA.

Bumpers: active shutters/grill26V-631 · 2025–2027 · Oct 1, 2026 · 3,096 vehicles Service brakes, electric: software/programming26V-620 · 2026–2027 · Sep 28, 2026 · 850 vehicles Exterior lighting26V-515 · 2027 · Aug 6, 2026 · 513 vehicles Wheels: lugs/nuts/bolts/studs26V-351 · 2026–2027 · May 28, 2026 · 644 vehiclesDo not drive Antilock: control unit/module26V-261 · 2025–2027 · Apr 23, 2026 · 2,772 vehicles Exterior lighting: turn signal26V-207 · 2025–2027 · Apr 1, 2026 · 86 vehicles Equipment: mechanical25V-801 · 2025–2026 · Nov 20, 2025 · 46 vehicles Lighting control module: software25V-803 · 2025–2026 · Nov 20, 2025 · 247 vehicles Exterior lighting: lighting control module25V-622 · 2025–2026 · Sep 18, 2025 · 156 vehicles Steering25V-521 · 2025–2026 · Aug 11, 2025 · 32 vehicles Supply: reservoir/tank25V-026 · 2025 · Jan 21, 2025 · 21 vehicles Electrical system: software24V-792 · 2025 · Oct 23, 2024 · 59,338 vehicles

Showing the 12 newest of 15 recalls. Each model-year page lists all recalls for that year.