9,900 lbs to 11,000 lbs (depending on configuration)
Curb Weight Range:
Approx. 6,000 lbs - 7,000 lbs
Payload Capacity Max:
Up to ~5,500 lbs (configuration dependent)
Towing Capacity Max:
Up to 23,100 lbs (with proper trailering equipment and configuration)
🛡️ Safety Features
Ratings
NHTSA Rollover Rating:
4-Star (for applicable configurations)
Active Features
ABS:
Standard Four-Wheel Antilock Braking System (ABS)
Traction Control:
StabiliTrak Stability Control with Traction Control
Passive Features
Airbags:
Driver and Front Passenger Airbags, Available Side-Curtain Airbags (configuration dependent)
Seatbelts:
Front and Rear Seatbelt Pretensioners
💡 Technology Features
Infotainment
Infotainment System:
Available touch-screen infotainment systems with navigation, USB, Bluetooth connectivity.
Driver Assistance
Parking Assist:
Available Rear Park Assist.
Camera:
Available Rear Vision Camera.
Connectivity
Bluetooth:
Available Bluetooth hands-free calling and audio streaming.
🔧 Maintenance
Service Intervals
Oil Change Interval Diesel:
Typically 5,000-7,500 miles or 6-12 months, depending on operating conditions (refer to manual for specifics).
Oil Change Interval Gasoline:
Typically 7,500 miles or 6-12 months, depending on operating conditions (refer to manual for specifics).
Tire Rotation:
Recommended every 7,500 miles.
Fluid Specifications
Engine Oil Diesel:
API CJ-4, SAE 15W-40 (check manual for specific viscosity based on ambient temperature).
Engine Oil Gasoline:
API SN, SAE 5W-30 (check manual for specific viscosity based on ambient temperature).
Coolant:
GM P/N 12346290 (Dex-Cool Extended Life Antifreeze/Coolant, Orange)
Brake Fluid:
DOT 3
Known Issues
Duramax Emisiones System:
Potential issues with Diesel Particulate Filter (DPF) regeneration and Diesel Exhaust Fluid (DEF) system on earlier models.
Duramax Egr Cooler:
Some Duramax engines can experience EGR cooler failures.
Transmission Governors:
Allison transmissions can have occasional issues with governor solenoid failures.
📚 Vehicle History
Brand Heritage
Gmc Legacy:
GMC (General Motors Truck Company) has a long history dating back to 1902, specializing in trucks and commercial vehicles.
Model Evolution
Sierra Hd Evolution:
The Sierra HD line evolved from the Chevrolet Silverado HD. The 2013 model is part of the GMT900 platform's refresh for heavy-duty trucks.
Production
Manufacturing Location:
Fort Wayne, Indiana, USA; Silao, Guanajuato, Mexico
🏆 Awards & Recognition
Recognitions
Heavy Duty Truck Awards:
GMC Sierra HD models have historically received positive reviews and awards for towing capability, durability, and powertrain performance in their class.
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