Mack Trucks Recalls 2015 Models Due to Seat Belt Bolt Torque Defect
Mack Trucks is recalling 2015 CHU, CXU, and GU trucks because seat belt bolts may not be torqued correctly, risking detachment in a crash.
What this means for you
Real risk of harm even if no illness or injury has been reported yet. Stop using the product and follow the agency's guidance.
Our severity reasoning: The recall involves a safety restraint system defect that increases the risk of injury in a crash, but no injuries or deaths have been reported in the source text, fitting the 'High' criteria for risk-of-harm products without reported injury.
Plain-English summary
Mack Trucks, Inc. is recalling certain 2015 model year CHU, CXU, and GU trucks manufactured between June 4, 2014, and June 18, 2014. The recall involves a defect where the bolts attaching the seat belt to the seat frame may not have been torqued to the required specification. This issue could cause the bolts to loosen over time, allowing the seat belt to detach from its mounts.
If the seat belt detaches, it would fail to properly restrain the occupant, increasing the risk of injury in the event of a crash. The recall began in October 2014. Mack will notify owners, and dealers will tighten the bolts to the required specification free of charge.
Owners may contact Mack customer service at 1-800-528-6586 for more information. Mack's number for this recall is SC0383. Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or visit www.safercar.gov.
The recalled product
- Product
- MACK GRANITE (GU), CHU, PINNACLE (CXU)
- Brand
- MACK
- Manufacturer
- Mack Trucks, Inc.
- Category
- Vehicle — Trucks
- Affected units
- 381
Is your product affected?
Check your packaging against the codes below. If any of them match, the product is part of this recall.
Model numbers (3)
- GRANITE (GU)
- CHU
- PINNACLE (CXU)
Distribution
Distributed nationwide across the United States.
Related recalls
Same brand · MACK
- SevereMack Recalls 2025 TerraPro Trucks Due to Steering Gearbox Fastener Issue
NHTSA · 2026-08-06
- HighMack Recalls 2027 Anthem and Pioneer Trucks for Marker Light Defect
NHTSA · 2026-08-06
- SevereMack Trucks Recalls 644 Vehicles Due to Wheel Lug Nut Loosening Risk
NHTSA · 2026-05-28
- SevereMack Trucks Recalls 2025-2027 Pioneer and Anthem Models for Brake Defect
NHTSA · 2026-04-23
- HighMack Recalls 2025-2027 Trailers Due to Turn Signal Software Defect
NHTSA · 2026-04-01
Same manufacturer · Mack Trucks, Inc.
See all →- HighMack Recalls Grote Replacement Marker Lights for Visibility Failure
NHTSA · 2026-08-12
- HighMack TerraPro Trucks Recalled for Engine Control Software Defect
NHTSA · 2026-03-11
Same hazard · seat belt failure
See all →- Severe
- High
- Severe
- High2026 Hyundai Kona rear center seat belt buckle failure risk
NHTSA · 2026-07-14
- HighNissan Recalls 2026 Leaf Vehicles Due to Rear Seat Belt Retractions
NHTSA · 2026-07-01