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When the job demands serious muscle, Indianapolis drivers count on the GMC Sierra 2500. At Ray Skillman Southside Buick GMC, we carry the full GMC 2500 lineup, from the tough-as-nails Pro to the luxury-loaded Denali Ultimate, so you can find the right fit for how you actually put your truck to work.
This truck has earned its reputation one demanding job at a time. Contractors, fleet operators, and hard-working families have relied on it for raw capability combined with a cabin designed to make long days at the wheel feel far more manageable.
The standard 6.6L V8 gas engine handles hauling, towing, and job site demands without missing a beat. For drivers who need more, the available 6.6L Duramax Turbo-Diesel V8 pairs with an Allison 10-speed automatic for smooth, confident performance under serious load. Properly configured as a Crew Cab, this Sierra 2500 can tow up to 21,870 lbs, keeping it at the top of its class for heavy-duty capability.
Every trim includes the Sierra HD Pro Safety package as standard, covering Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, IntelliBeam automatic headlights, and Buckle to Drive. That safety foundation is in place from the base Pro up, so you’re covered regardless of where you start in the lineup.
The available ProGrade Trailering System brings up to 14 camera views through HD Surround Vision, giving you a clear picture of what’s behind, beside, and below your rig when you hook up. Trailer tire pressure, connection status, and sway management all come through on the infotainment screen, keeping your attention on the road. Upper trims add a 13.4-inch central touchscreen and a 12.3-inch digital driver information center for organized access to navigation, gauges, and vehicle settings.
The available 15-inch Head-Up Display puts speed and driving alerts directly in your line of sight. That kind of hands-free visibility adds up fast on long hauls or when you’re guiding a loaded truck through traffic.
Sierra 2500 Crew Cab models offer best-in-class standard front head and leg room, so taller drivers aren’t folded behind the wheel after a few hours. Seating ranges from durable vinyl on the Pro to perforated leather on the SLT, then up to full-grain leather with authentic wood trim on the Denali and Denali Ultimate. The available 16-way power front seats with massaging feature make a difference you’ll feel on any drive that runs long.
Storage throughout the cab is practical and well-organized, with a large center console that doubles as a mobile workstation and rear seat compartments that fold flat for extra floor space. The MultiPro Tailgate opens in multiple positions to simplify loading, hauling, or just sitting down when the workday wraps up.
Finding the right fit means knowing what each trim actually brings to the table. Here’s a clear look at how the lineup stacks up across the features that matter most.
| Feature | Pro | SLE | SLT | AT4 | AT4X | Denali | Denali Ultimate |
|---|---|---|---|---|---|---|---|
| Infotainment Display | 7″ | 13.4″ | 13.4″ | 13.4″ | 13.4″ | 13.4″ | 13.4″ |
| Seating Material | Vinyl | Cloth | Perforated Leather | Leather | Leather | Premium Leather | Full-Grain Leather |
| Heated & Ventilated Front Seats | — | — | ✓ | ✓ | ✓ | ✓ | ✓ |
| Power Front Seat Adjustment | Standard | Standard | 10-Way | 10-Way | 10-Way | 12-Way | 16-Way + Massage |
| Off-Road Hardware | — | — | — | Rancho Shocks + Skid Plates | Multimatic DSSV + Locking Diffs | — | — |
| Premium Audio | — | — | — | Bose | Bose | Bose 12-Speaker | Bose 12-Speaker + KICKER |
| HD Surround Vision | Avail. | Avail. | Avail. | ✓ | ✓ | ✓ | ✓ |
| Duramax Diesel Available | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Features represent standard and available equipment. Configurations may vary. Visit gmc.com for complete specifications.
Our team can walk you through every GMC 2500 trim in person, compare builds side by side, and pull current inventory to see what’s ready to go. Stop by and let us help you narrow it down.
We’ve been serving the Indianapolis south side and surrounding communities for generations as part of the Ray Skillman Auto Group, one of the nation’s Top 100 dealers. We’ve earned GMC Dealer of the Year recognition three times over by putting customers first at every step, and our low-pressure approach gives you time to explore and compare without feeling rushed toward a decision.
Our finance team works with a wide range of budgets and credit situations, trade-in valuations are quick and straightforward, and our factory-trained GMC technicians keep your truck in top shape long after the sale. Browse our current inventory online or stop by today. We’re ready to help you find the right truck and make the whole process as simple as it should be.
The GMC Sierra 2500 is built around serious capability, with available towing of up to 21,870 lbs when properly configured as a Crew Cab. The available 6.6L Duramax Turbo-Diesel V8 paired with an Allison 10-speed automatic transmission brings considerable torque to the hitch, making it one of the most capable options in the heavy-duty segment. If maximum towing is your priority, the diesel powertrain is the one to focus on.
Seven trim levels are currently available: Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate. Each is designed with a different kind of driver in mind, from the work-focused Pro to the Denali Ultimate with full-grain leather and 16-way massaging front seats. At Ray Skillman Southside Buick GMC, our team can walk you through every option to find the right fit for your needs and budget.
Yes, our service department is staffed with factory-trained GMC technicians who specialize in Sierra trucks and the full lineup. We handle everything from routine oil changes and tire rotations to more involved powertrain and drivetrain work. Scheduling is easy online or by phone, and we include a complimentary multi-point inspection with every service visit.
Buyers can choose from Regular Cab, Double Cab, and Crew Cab styles, paired with either a standard or long bed depending on the cab chosen. Crew Cab models offer best-in-class standard front head and leg room, making them a popular choice for drivers who put in long hours on the road or at the job site. Our team can help you determine which setup fits your work habits and hauling needs best.
Yes, we make the trade-in process quick and straightforward. You can get an estimated value online before you come in, or bring your vehicle in and our team handles the rest. Applying your trade toward a new truck is a simple way to lower your out-of-pocket cost and get into the vehicle you actually want.
Yes, our finance team works with a wide range of credit histories and has relationships with national banks as well as local lenders. Whether your credit is strong or you’re working through some challenges, we look for a loan structure that fits your budget. Getting pre-approved online is quick and easy if you want a head start before stopping by.
Ray Skillman Southside Buick GMC carries a full heavy-duty truck inventory and serves drivers from across the south side and surrounding communities. Browse our current selection online or stop by to see what is in stock and take a test drive. Our team is ready to help you compare options and move forward at whatever pace works for you.