Knoxville professionals who spend weekends hauling boats along the Tennessee River waterfront often look northeast to find a heavy-duty tow rig. Our showroom in Morristown provides a relaxed, small-city buying experience just a short drive from the scenic trails of Panther Creek State Park. By focusing on a transparent, customer-first sales process, we ensure that every visitor receives the attention they deserve.
We maintain an extensive selection of new and pre-owned trucks and SUVs, making it easy to find the exact vehicle that fits your lifestyle. Our sales staff understands the mechanical nuances of the entire lineup, helping you compare engine options, towing packages, and cabin finishes without any high-pressure tactics. If you want to check our current lot availability or speak with a sales specialist, you can give our team a quick call today.
To experience our inventory in person, plan a visit to our dealership. Finding us is simple, and you can easily map out your drive using our showroom directions to secure a personalized walkthrough of our latest models.
Table of Contents
- Decoding the 2026 GMC Sierra 1500 Towing and Power Capabilities
- Inside the 2026 GMC Yukon Seating Configurations and Passenger Capacity
- Premium Cabins Compared: Sierra Denali vs Silverado High Country
- Streamlined Auto Financing and Trade-In Solutions at Our Dealership
- Answers to Your GMC Shopping and Ownership Questions
- Drive Home Your Next GMC From Our Showroom
Decoding the 2026 GMC Sierra 1500 Towing and Power Capabilities
The 2026 GMC Sierra 1500 delivers engineered capability across a highly versatile powertrain lineup. For maximum trailering, a properly equipped Sierra 1500 can tow up to 13,300 pounds, making it a robust option for hauling heavy equipment or large recreational trailers. If you opt for the 3.0L turbo-diesel engine, which generates 305 hp and 495 lb-ft of torque paired with a 10-speed automatic transmission, the truck achieves a towing capacity of 9,000 lbs while maintaining an efficient EPA-rated 22 city / 26 hwy MPG.
Different trims cater to specific driving dynamics and capability requirements. The trail-ready AT4 and AT4X come standard with Four-wheel Drive and the high-torque 3.0L diesel. For refined street performance, the Denali features a 5.3L engine producing 355 hp and 383 lb-ft of torque, while the range-topping Denali Ultimate utilizes a potent 6.2L V8 that puts out 420 hp and 460 lb-ft of torque. Meanwhile, the accessible Elevation, Pro, and SLE trims employ a highly responsive 2.7L engine delivering 310 hp and 430 lb-ft of torque mated to an 8-speed automatic transmission.
Selecting the right configuration depends on your specific hauling demands and budget. If you are looking for a great selection, you can explore our pre-owned cars under $20k to find reliable utility. For those who need more passenger space alongside towing capability, we also recommend that you look through our pre-owned SUV inventory. Before finalizing your purchase, be sure to check our current offers to maximize your savings on available packages and accessories.
Engine & Performance
Powertrain specs by trim
| Feature | AT4 | AT4X | Denali | Denali Ultimate | Elevation | Pro | SLE | SLT |
|---|---|---|---|---|---|---|---|---|
| Engine | 3.0L | 3.0L | 5.3L | 6.2L | 2.7L | 2.7L | 2.7L | 5.3L |
| Horsepower | 305 hp | 305 hp | 355 hp | 420 hp | 310 hp | 310 hp | 310 hp | 355 hp |
| Torque | 495 lb-ft | 495 lb-ft | 383 lb-ft | 460 lb-ft | 430 lb-ft | 430 lb-ft | 430 lb-ft | 383 lb-ft |
| Transmission | 10-speed automatic | 10-speed automatic | 10-speed automatic | 10-speed automatic | 8-speed automatic | 8-speed automatic | 8-speed automatic | 10-speed automatic |
| Drivetrain | Four-wheel Drive | Four-wheel Drive | Rear-wheel drive | Four-wheel Drive | Rear-wheel drive | Rear-wheel drive | Rear-wheel drive | Rear-wheel drive |
​
Inside the 2026 GMC Yukon Seating Configurations and Passenger Capacity
The 2026 GMC Yukon stands as the benchmark for full-size SUV versatility, offering generous cabin space and adaptable seating layouts designed to accommodate growing families and long-distance travelers. Most configurations of this premium SUV can comfortably seat up to eight passengers when equipped with the second-row bench seat. For those who prefer easier third-row access and enhanced individual comfort, choosing the second-row captain's chairs adjusts the layout to a seven-passenger capacity.
Cabin layout options vary across the trim lineup to match your aesthetic and functional preferences. Standard trims like the SLE and SLT offer flexible seating configurations that allow you to balance passenger comfort with cargo hauling. Moving up to the rugged AT4 or the luxurious Denali introduces premium seating surfaces and power-folding options that make transforming the interior effortless. The third row splits 60/40 and tumbles flat into the floor in a single motion, expanding the rear cargo area significantly for luggage, gear, or supplies.
We make finding the right family-sized vehicle simple with our diverse selection of late-model vehicles. If you want a premium family vehicle, you can browse our used GMC SUVs to compare different cabin layouts in person. For those who still require an open bed for work or recreation, we also encourage you to explore our pre-owned truck inventory. Should your vehicle ever require body repairs down the road, our team is ready to assist when you visit our certified collision center.
Dimensions & Capacity
Capacity and dimensions by trim
| Feature | AT4 | AT4X | Denali | Denali Ultimate | Elevation | Pro | SLE | SLT |
|---|---|---|---|---|---|---|---|---|
| Seating | 5 | 5 | 5 | 5 | 6 | 3 | 6 | 6 |
| Cargo | 62.9 cu ft | 62.9 cu ft | 62.9 cu ft | 62.9 cu ft | 71.7 cu ft | 71.7 cu ft | 71.7 cu ft | 62.9 cu ft |
| Curb weight | 5,500 lbs | 5,890 lbs | 4,890 lbs | — | 4,596 lbs | 4,288 lbs | 4,594 lbs | 4,611 lbs |
| Towing | 9,000 lbs | 8,700 lbs | 11,200 lbs | 8,900 lbs | 9,100 lbs | 9,100 lbs | 11,200 lbs | 13,100 lbs |
| Payload | 1,670 lbs | 1,380 lbs | 1,980 lbs | — | 2,206 lbs | 2,230 lbs | 2,206 lbs | 2,289 lbs |
​
Premium Cabins Compared: Sierra Denali vs Silverado High Country
When comparing top-tier luxury pickups, the interior details define the driving experience. The 2026 GMC Sierra Denali, which starts at a base MSRP of $66,100 with a destination charge of $2,795, sets itself apart with an ultra-premium cabin design. Inside the Denali, you will find authentic open-pore wood trim, real patterned aluminum accents, and premium Forge leather seating surfaces. Stepping up to the Denali Ultimate, which carries a base MSRP of $84,400 and a $2,795 destination charge, elevates the luxury further with full-grain leather and topographical map patterns etched into the wood trim.
In contrast, the Chevrolet Silverado High Country takes a slightly different approach to premium styling. While the High Country utilizes high-quality model-specific leather and distinct wood accents, it offers a different design approach than the Denali's brushed aluminum and the Ultimate's custom stitching. The Sierra's dashboard layout also integrates its digital displays with a focus on professional-grade symmetry, appealing to drivers who want a sophisticated mobile office.
Both trucks offer exceptional comfort, but the Sierra's materials present a more cohesive, executive-class atmosphere. If you are interested in experiencing these premium cabins firsthand, we invite you to browse our pre-owned vehicle inventory to compare various model years. We also highlight exceptional values in our hand-picked selection, so feel free to check our featured pre-owned vehicles to see our latest luxury truck arrivals.
Pricing
Pricing by trim
| Feature | AT4 | AT4X | Denali | Denali Ultimate | Elevation | Pro | SLE | SLT |
|---|---|---|---|---|---|---|---|---|
| Base MSRP | $67,000 | $79,600 | $66,100 | $84,400 | $50,500 | $38,300 | $48,700 | $55,100 |
| Destination charge | $2,795 | $2,795 | $2,795 | $2,795 | $2,795 | $2,795 | $2,795 | $2,795 |
​
Streamlined Auto Financing and Trade-In Solutions at Our Dealership
Over 75% of our customers take advantage of our tailored financing options to drive home their ideal GMC vehicle. Many shoppers who start their purchase online ask us if they can complete the entire transaction and arrange home delivery without visiting the showroom. We provide digital tools that allow you to structure your deal, select protection plans, and complete the buying process from the comfort of your home. You can take the first step today when you apply for financing online to receive a quick credit decision.
If you plan to use your current vehicle as a down payment, obtaining an accurate valuation is essential. Our online appraisal tool, powered by Kelley Blue Book, provides a transparent estimate based on current market data. You can get your instant trade-in offer in minutes, which we will honor when you bring the vehicle to our lot. Applying this value directly to your purchase can help lower the amount you need to finance.
Whether you are looking to purchase a brand-new model or a high-quality pre-owned option, we have solutions tailored to your financial goals. For buyers seeking a vehicle with minimal wear, we suggest you shop our low-mileage used vehicles to find near-new quality at a pre-owned price point. Our finance team works with a variety of reputable lenders to secure competitive rates for every customer.
​
Answers to Your GMC Shopping and Ownership Questions
Q: What warranty coverage comes with a new GMC vehicle?
GMC backs every new truck and SUV with a 3-year/36,000-mile limited bumper-to-bumper warranty along with a powertrain warranty for peace of mind. Additionally, your first scheduled maintenance visit is covered within 12 months or 12,000 miles of ownership. You can find these covered models when you browse our featured new vehicles online today.
Q: Is a diesel engine option available on the GMC Sierra 1500?
Yes, the Sierra 1500 offers the highly efficient 3.0L Duramax turbo-diesel engine, which provides exceptional low-end torque for towing. This engine is ideal for drivers who want maximum highway fuel economy without sacrificing pulling power. To see our current diesel lineup, you can shop our new diesel vehicles.
Q: Which GMC SUVs offer third-row seating configurations?
The full-size Yukon and the mid-size Acadia both offer spacious third-row seating configurations to accommodate larger families. The Yukon provides the most generous legroom and cargo capacity, while the Acadia offers a more maneuverable footprint for daily driving. If you are ready to compare these layouts, you can shop new GMC SUVs in our inventory.
Q: Can I custom order a GMC truck with specific towing packages?
Yes, our sales team can help you custom order a pickup built to your exact trailering and accessory specifications. Ordering directly from the factory can help you select the engine, axle ratio, and camera technologies that fit your needs for heavy hauling. To start exploring your options, you can shop new GMC trucks on our website.
Q: Are there federal tax credits currently available for new GMC electric vehicles?
The federal clean vehicle tax credits under IRC §30D were terminated by Public Law 119-21 on September 30, 2025. Present-day buyers do not qualify for these credits unless they acquired the vehicle via a binding written contract on or before that date. We recommend consulting with your tax preparer and our sales team to verify your specific situation.
Q: How often should the transmission fluid be changed in a GMC truck or SUV?
Under normal driving conditions, the automatic transmission fluid and filter should be replaced every 97,500 miles to ensure optimal gear shifts and longevity. If you frequently tow heavy trailers or drive in severe conditions, this interval drops to every 45,000 miles. Keeping up with this schedule protects your powertrain warranty and maintains vehicle resale value.
​
Drive Home Your Next GMC From Our Showroom
Finding the perfect vehicle requires a dealership that prioritizes your needs, offering a diverse inventory and transparent sales support. From heavy-duty haulers to premium family-sized SUVs, our team is committed to helping you navigate the buying process with complete confidence. We invite you to explore our showroom and experience the professional-grade engineering that defines the GMC brand.
If your driving needs lean toward commuter options, you can also browse our pre-owned sedans to find excellent fuel economy and modern safety features. Our sales specialists are ready to guide you through a test drive, explain different trim levels, and help you finalize your purchase.
When you are ready to take the next step, you can reach out to our sales department by calling (423) 616-5979 to schedule an appointment. You can also plan your visit by getting our showroom directions to see our complete lineup in person today.
Keep Your Vehicle Running Strong
Keep your vehicle performing at its best with our service team:
© 2026 Rusty Wallace GMC Morristown. All rights reserved.