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NHTSA vehicle safety data

2016 Mack CXU Recalls & Complaints

The 2016 Mack CXU has 1 NHTSA recall campaign and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Mack dealer.

NHTSA recall and complaint data for the 2016 Mack CXU. Recall data is refreshed daily from NHTSA.

2016 Mack CXU owner complaints

Owners have filed 1 complaint with NHTSA about the 2016 Mack CXU, describing incidents dated November 5, 2025.

Most-cited components

  • Power Train 1 complaint

Newest complaints

  • ODI #11697726 · Filed

    Second occurrence of below happening, first time being 11/28/25, and most recently 11/05/25. Clutch engaged uncommanded while stopped with service brakes engaged. Truck kept trying to power through the service brakes until it was forcefully stalled out with service brakes. Truck is start-able…

Read the full complaint

NHTSA defect investigations

NHTSA's investigations file lists the 2016 Mack CXU in 1 investigation. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.

Open and recently closed NHTSA defect investigations

Internal Rubber Diaphragm Incomplete Attachment

NHTSA #15V025000 · Parking Brake — Driveline — Hydraulic — Actuator · NHTSA notice

Reported January 22, 2015 · Mack Trucks, Inc.

Potentially affected: 349 vehicles

Repair completion: 76.5% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Mack campaign SC0387 · Owners notified March 20, 2015 · Vehicles built May 20, 2014 – March 24, 2015 (per NHTSA)

Defect description

Mack Trucks, Inc. (Mack) is recalling certain model year 2015 and 2016 CXU and LEU trucks manufactured May 20, 2014, to March 24, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured from January 9, 2014, through February 3, 2015. The affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator.

Safety consequence

If the diaphragm is not completely attached, there may be internal leakage from the service section past the diaphragm, potentially trapping air pressure in the parking brake section. This air pressure in turn, if not vented, may prevent full release of the actuator unit, and may induce brake drag and may result in overheated wheelend service brakes, increasing the risk of a fire.

Manufacturer remedy

Mack will notify owners, and dealers will inspect the brake actuator and replace, as necessary, free of charge. The recall began March 20, 2015. Owners may contact Mack customer service at 1-610-709-2131. Mack's number for this recall is SC0387.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Other Mack CXU model years

Check your 2016 Mack CXU VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack CXU at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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