Sierra TurboMaxTM engines, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
Maintenance Note
N/A
First Visit: 12 Months/12,000 Miles
Roadside Assistance Note
N/A
Sierra TurboMaxTM engines, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles