MACK CXU (Pinnacle)
PowerObserved trucks and fleets, single-power-unit inspection outcomes, and failure groups grounded in the federal CFR section and BASIC reference.
Interpretation guardrail
These roadside results reflect operators' maintenance and duty cycle as much as the vehicle. They are not evidence of a manufacturer defect. OOS rates and failure frequencies are normalized per inspection, never presented as a raw count pretending to be a rate.
Violation detail is as of Jun 16, 2026; it is not current. Platform and cab labels appear only where external evidence established them. A missing label means “not established,” never “no.”
Observed model footprint
Attributed inspection span: Jun 12, 2023 – Sep 8, 2026.
Reported trucks sum FMCSA truck_units across distinct observed fleets after the existing plausibility clamp. It is operator context, not this model's production count, and never uses power_units or MCS-150 mileage.
Level-scoped OOS outcomes
Rates count OOS inspections only inside the same inspection-level population used by their denominator.
Top violation groups
Attributable vehicle violations grouped only by CFR section and BASIC category as of Jun 16, 2026. Frequencies are per 100 attributed inspections.
CFR 393.9 · Vehicle Maintenance: 10,904 violations; 1,633 marked OOS.
CFR 392.2 · Unsafe Driving: 6,818 violations; 47 marked OOS.
CFR 393.75 · Vehicle Maintenance: 5,064 violations; 3,056 marked OOS.
CFR 393.45 · Vehicle Maintenance: 4,355 violations; 975 marked OOS.
CFR 393.11 · Vehicle Maintenance: 3,590 violations; 65 marked OOS.
CFR 393 · Vehicle Maintenance: 3,545 violations; 1,442 marked OOS.
CFR 396.3 · Vehicle Maintenance: 3,225 violations; 1,436 marked OOS.
CFR 393.47 · Vehicle Maintenance: 2,752 violations; 173 marked OOS.
CFR 396.17 · Vehicle Maintenance: 2,748 violations; 0 marked OOS.
CFR 393.55 · Vehicle Maintenance: 2,640 violations; 0 marked OOS.
Established platform and cab splits
Only externally sourced labels are listed; the model rollup above still includes VINs whose labels are not established.
No platform or cab label is established for this model. That does not mean the model has no platform variants or cab configurations; it means this store has no sourced label to publish.