2025 GMC Sierra 2500 HD Trims Guide

Professional-Grade Capability Meets Refined Luxury

The 2025 GMC Sierra 2500 HD delivers professional-grade capability with refined execution, bridging worksite demands and luxury comfort seamlessly. Starting at $46,300, this heavy-duty workhorse offers dual powertrain strategies and seven distinct trim levels to match any need from utilitarian work truck to luxury hauler.

2025 Sierra 2500 HD Overview

Key Powertrain Specifications

Standard Engine: 6.6L V8 Gas producing 401 hp / 464 lb-ft torque

Available Engine: Duramax 6.6L Turbo-Diesel V8 producing 470 hp / 975 lb-ft torque

Transmission: Allison 10-speed automatic

Max Towing: Up to 22,500 pounds (conventional)

The 2025 GMC Sierra 2500 HD brings uncompromising strength, premium craftsmanship, and advanced technology together for demanding jobs and long-haul weekends alike. Recent updates include standard trailer-brake controller across all trims and enhanced safety feature availability on base models, cementing its position as GM's premium heavy-duty offering.

Awards & Accolades

U.S. News: Ranks Sierra 2500 HD #4 among heavy-duty trucks with an impressive 8.7/10 rating

Car and Driver: Awards 6.5/10 for its balanced approach to capability and comfort

Critics consistently praise its refined ride quality and upscale interior appointments that distinguish it from mainstream competitors.

2025 Sierra 2500 HD Trim Levels

2025 GMC Sierra 2500HD Trim Levels

2025 GMC Sierra 2500HD Pro
*Starting at $46,300
2025 GMC Sierra 2500HD Pro

Powered by a 6.6L V8 gas engine with 401 horsepower and 464 pound-feet of torque, the Pro trim delivers power for all your trucking needs. Available in all cab and bed configurations with rear-wheel or four-wheel drive.

2025 GMC Sierra 2500HD SLE
*Starting at $50,400
2025 GMC Sierra 2500HD SLE

Enhanced comfort and modern tech with cloth seating surfaces, 13.4-inch infotainment touchscreen with Google built-in, and 12.3-inch driver information display. Traction select system with tow/haul mode boosts trailering performance.

2025 GMC Sierra 2500HD SLT
*Starting at $60,100
2025 GMC Sierra 2500HD SLT

Focuses on creature comforts with heated 10-way power-adjustable front seats and heated steering wheel. MultiPro tailgate ensures easy bed access and transforms into a work surface. Includes ProGrade trailering system.

2025 GMC Sierra 2500HD AT4
*Starting at $71,000
2025 GMC Sierra 2500HD AT4

Well-equipped for outdoor explorations with 20-inch wheels, off-road suspension, and Rancho twin-tube shocks. Skid plates protect the underbody. HD Surround Vision with up to 14 camera views and adaptive cruise control standard.

2025 GMC Sierra 2500HD Denali
*Starting at $73,900
2025 GMC Sierra 2500HD DENALI

Unique styling with chrome wheel details and authentic open-pore wood interior trims. Can be customized with rear camera mirror and power sunroof. 12-way heated and ventilated power front seats for long-haul comfort.

2025 GMC Sierra 2500HD AT4X
*Starting at $83,200
2025 GMC Sierra 2500HD AT4X

Tuned for serious off-road with Multimatic DSSV dampers and factory-installed 1.5-inch suspension lift. Goodyear Territory 35-inch mud-terrain tires, rear electronic-locking differential, and heavy-duty skid plates.

2025 GMC Sierra 2500HD Denali Ultimate
*Starting at $92,800
2025 GMC Sierra 2500HD Denali Ultimate

The pinnacle of luxury and performance with 470 hp/975 lb-ft Duramax turbo-diesel standard. Full-grain leather, 16-way massaging seats, MultiPro tailgate audio system by Kicker, and exclusive styling elements.

Key Specifications & Capabilities

Powertrain Options

Standard 6.6L V8 Gas:
401 horsepower @ 5,200 rpm
464 lb-ft torque @ 4,000 rpm

Available Duramax 6.6L Turbo-Diesel:
470 horsepower @ 2,800 rpm
975 lb-ft torque @ 1,600 rpm

Transmission: Allison 10-speed automatic with tow/haul mode

Towing & Payload Capacity

Maximum Conventional Towing: 22,500 lbs

Maximum Gooseneck Towing: 23,100 lbs

Maximum Payload Capacity: 4,279 lbs

Fifth-Wheel Towing: Up to 22,170 lbs

2025 GMC Sierra 2500HD Interior

Premium interior with available 13.4-inch touchscreen and 12.3-inch digital gauge cluster

2025 GMC Sierra 2500HD Towing

Professional-grade towing capacity for heavy loads

Technology & Safety Features

Sierra 2500 HD's technological arsenal centers around available 13.4-inch touchscreen paired with 12.3-inch digital gauge cluster, providing wireless Apple CarPlay and Android Auto integration. Standard safety suite includes forward collision warning, automatic emergency braking, pedestrian detection, and lane departure warning.

Infotainment & Connectivity

  • Available 13.4-inch diagonal touchscreen
  • 12.3-inch digital driver information center
  • Wireless Apple CarPlay & Android Auto
  • Available Google built-in
  • Available Bose premium audio systems
  • MultiPro Tailgate Audio System by Kicker (available)

Trailering Technology

  • ProGrade Trailering System
  • In-Vehicle Trailering App
  • Transparent Trailer View
  • HD Surround Vision (up to 14 camera views)
  • Standard trailer brake controller
  • Trailering camera provisions

Safety & Driver Assistance

  • Sierra HD Pro Safety Suite (standard)
  • Forward Collision Alert
  • Automatic Emergency Braking
  • Lane Departure Warning
  • Available Adaptive Cruise Control
  • Available Rear Camera Mirror
2025 GMC Sierra 2500HD Technology

Advanced technology with available 13.4-inch touchscreen and digital gauge cluster

2025 GMC Sierra 2500HD MultiPro Tailgate

Innovative MultiPro Tailgate with six functions for enhanced utility

2025 Sierra 2500 HD FAQs

What is the difference between the gas and diesel engines?
The standard 6.6L V8 gas produces 401 hp/464 lb-ft, while the available Duramax 6.6L turbo-diesel delivers 470 hp with a massive 975 lb-ft of torque - ideal for heavy towing.
Which trim is best for off-road capability?
The AT4X offers the most serious off-road hardware with Multimatic DSSV dampers, 1.5-inch lift, and 35-inch mud-terrain tires. The AT4 provides excellent off-road capability with Rancho shocks and skid plates.
What is the maximum towing capacity?
Properly equipped, the Sierra 2500 HD can tow up to 22,500 pounds conventionally or 23,100 pounds with a gooseneck hitch.
What technology comes standard?
All trims include the Sierra HD Pro Safety Suite (forward collision alert, automatic emergency braking, lane departure warning), trailer brake controller, and wireless smartphone integration.
Which trim offers the most luxury features?
The Denali Ultimate is the pinnacle with full-grain leather, 16-way massaging seats, premium audio, and exclusive styling. The standard Denali also offers significant luxury appointments.
What is the MultiPro Tailgate?
This innovative tailgate offers six functions including primary gate, full-width step, load stop, standing work surface, secondary gate, and inner load stop for enhanced utility.
Can I get the diesel engine on lower trims?
Yes, the Duramax turbo-diesel is available across all trim levels, though it's standard on the Denali Ultimate.
What is Transparent Trailer View?
This available camera technology uses multiple cameras to create a virtual view "through" your trailer, helping with lane changes and backing up while towing.

Experience Professional-Grade Capability at Ritchey Buick GMC

Located at 932 N Nova Rd, Daytona Beach, FL 32117, Ritchey Buick GMC is your premier destination for the 2025 GMC Sierra 2500 HD lineup. Our truck specialists can help you find the perfect trim and configuration for your needs, whether you require maximum towing capacity, off-road capability, or luxury comfort.

2025 GMC Sierra 2500HD

Making the right heavy-duty truck choice is important for both work and lifestyle. Ritchey Buick GMC is here to help with personalized consultations to match you with the perfect Sierra 2500 HD configuration. We'll walk you through all available options, financing solutions, and help you take advantage of current incentives.

Our team understands the demands of professional-grade work and the importance of having a truck that can handle both worksite challenges and family adventures. Stop by Ritchey Buick GMC today to experience the 2025 Sierra 2500 HD difference firsthand!

*Manufacturer's Suggested Retail Price. Does not include destination charge. Option, content and accessory pricing, and other dealer charges not included. Tax, title, license and other fees extra. Actual price determined by Ritchey Buick GMC.