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Heavy-Duty Strength in the 2025 GMC Sierra HD

2025 GMC Sierra HD

The 2025 GMC Sierra HD is a potent vehicle, with enormous power under the hood and various great features. A showcase for American ingenuity, there's so much to love about this vehicle.

Power and Performance

GMC is known for producing powerful vehicles, and the heavy-duty 2025 Sierra HD takes this potency to the next level. The standard engine is a 6.6-liter V8, offering a massive 401 horsepower and 464 lb-ft.

If that's not enough for your needs, you can go all out with a Duramax Turbo-Diesel V8 engine, offering 570 horsepower and 975 lb-ft of torque. With an available 36,000 lbs of towing, you can conquer any challenge with the GMC Sierra HD by your side.

Customizable

If you're the type of person who likes to customize their vehicle, look no further than the 2025 Sierra HD. This truck offers a range of options so you can stamp your personality on the truck. Seven different trims offer a choice of engines and drivetrains, allowing you to tweak the performance according to your preferences.

Choose from a range of cab and bed sizes to get the most out of the space in the truck. Inside, you can choose different seat trims and stitching to maximize your comfort. Select your choice of beautiful paint finishes and alloy wheels to complete your look.

Luxurious Interior

Despite its enormous power, the 2025 Sierra HD has a softer touch too. Inside the cab, you'll find a range of features to maximize comfort and convenience, like available 16-way power seats with a massage feature. The cab is super spacious too, with best-in-class head and legroom.

Driver Assistance

The 2025 Sierra HD comes with driver assistance, lending you a helping hand on the road. Forward collision alert, lane departure warning, and automatic emergency braking are just some of the features that help you avoid hazards wherever you go.

MultiPro Tailgate

All the best pickup trucks have a quality tailgate, and the 2025 Sierra HD is no exception. A MultiPro Tailgate comes standard on the SLT, AT4, Denali, AT4X, and Denali Ultimate trims. It's also available on the Pro and SLE trims.

The six-function tailgate can be used for several different purposes, including loading and unloading. Inner gates stop items from sliding out or can convert into a workspace. You can even select the Integrated MultiPro Tailgate Audio System by KICKER to enjoy music outside.

Looking for a quality vehicle for adventures or everyday life? Our dealership can offer you a range of new or pre-owned vehicles to suit your needs. Take a trip to Alexander GMC of Simi Valley in Simi Valley, CA today and find the vehicle that's right for you.

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Used GMC Trucks

Used GMC Trucks in Simi Valley: Why They Still Make So Much Sense

Buying a truck is rarely a casual decision. It’s about capability, reliability, and how well it fits into your daily routine. That’s exactly why used GMC trucks continue to hold their appeal. They don’t suddenly lose their purpose after the first owner. If anything, they become a more practical way to access the same Professional Grade engineering without stretching your budget. For drivers in Simi Valley, Thousand Oaks, and across Ventura County, that balance of value and capability is hard to ignore. more Real Value That Shows Up Beyond the Price Tag The strongest argument for buying used is straightforward. Depreciation does the heavy lifting for you. A used GMC truck delivers much of the same performance, durability, and feature content as a new model, but at a significantly lower entry point. That opens the door to trims, packages, and capabilities that might otherwise sit just out of reach. When browsing the used truck inventory at Alexander GMC of Simi Valley, it becomes clear how much more truck you can get for your money. A Lineup That Still Covers Every Kind of Driver GMC’s truck range has always been well defined, and that carries over into the used market. The Sierra 1500 remains a go-to for everyday versatility, balancing comfort with real capability. Step up to Sierra HD models, and you’re into serious towing and hauling territory, ideal for drivers commuting through Simi Valley or heading out with equipment toward Moorpark or beyond. Then there’s the Canyon. Smaller, easier to maneuver, and well-suited to both city streets and light trail use around the hills outside Ventura County. Exploring the pre-owned GMC lineup online makes it easier to compare these options side by side and find what fits your routine. Capability and Features That Hold Up Over Time One of the more overlooked advantages of used GMC trucks is how well their features age. Even models a few years old often include available 4WD systems, trailering packages, touchscreen infotainment, and advanced towing tools. These aren’t features that become obsolete overnight. They continue to deliver value every time you use the truck. Higher trims like AT4 and Denali add another layer, bringing either off-road capability or a more refined interior experience, often at a much more accessible price point when purchased pre-owned. Built to Work, Designed to Last GMC trucks are engineered with durability in mind, and that shows in the used market. With proper maintenance and a solid service history, these trucks continue to perform reliably for years. For buyers who want added reassurance, exploring GMC Certified Pre-Owned vehicles through your local dealership provides an extra layer of inspection and coverage. It’s a practical way to buy with confidence, especially if the truck will be part of your daily workload. A Smarter Way to Shop in Simi Valley Where you buy matters just as much as what you buy. Working with a local dealership like Alexander GMC of Simi Valley gives you access to a team that understands how drivers in the area use their trucks. If that’s commuting along the 118, hauling gear, or heading out for weekend trips along the coast, they can help guide you toward the right fit. You can start by browsing the used inventory online, comparing available Sierra and Canyon models, and narrowing down your options before stepping onto the lot. Find the Right Used GMC Truck for Your Life Used GMC trucks make sense because they continue to deliver where it matters. Capability, durability, and real-world usability. For drivers in Simi Valley, Thousand Oaks, Moorpark, and the surrounding Ventura County area, they offer a practical path to owning a truck that’s ready for both work and everyday life. Explore current availability at Alexander GMC of Simi Valley and schedule a test drive online to see which truck fits your needs.

Yukon XL

Which GMC SUV Fits Your California Lifestyle? A Closer Look at GMC SUVs in Simi Valley, CA

Whether you're hauling the family through the Santa Monica Mountains or navigating busy freeways on your daily commute, there's a GMC SUV that’s built for your lifestyle in Simi Valley, California. GMC offers a range of sport utility vehicles, from the compact Terrain to the full-size Yukon, so finding the right match comes down to understanding what each model brings to the table. more The GMC Terrain - Efficiency Meets Everyday Versatility If you're looking for a smaller footprint with a comfortable, well-equipped cabin, the 2026 GMC Terrain is a smart option. This capable crossover delivers a turbocharged 175 hp, boasts fuel economy up to 27 MPG combined, and offers both front-wheel and all-wheel drive. It feels manageable in tight city parking or on winding canyon roads. Trim levels like the Denali and AT4 add upscale features and light off-road capability, respectively. For Simi Valley drivers who don't need a lot of cargo space but want a polished, reliable daily driver that can handle off-roading as well, the Terrain fits the bill. The GMC Acadia - The Family-Friendly Middle Ground The 2026 GMC Acadia steps up in size and capability without going into full-size territory. This mid-size SUV was named Best 3-Row SUV for Families by U.S. News & World Report and it's easy to see why. With 5-star safety ratings, seating for up to 8 passengers, available 2 nd -row captain’s chairs, and a refined interior with options like heated, ventilated, massaging front seats and premium leather upholstery, long drives are a welcome treat. If weekends mean road trips up the Pacific Coast Highway or day excursions to local parks, the Acadia offers up to 97.5 cu. ft. total, and 57.3 cu. ft. with just the 3 rd row folded flat. Among GMC SUVs, the Acadia strikes a balance that many California families will appreciate. The GMC Yukon and Yukon XL - Maximum Space for Maximum Adventure For those who truly need to go big, the 2026 GMC Yukon and Yukon XL deliver full-size capability with a premium feel. These are the SUVs built for larger families who need extra space, with both models providing 44.5” of front-row legroom and 42” in the 2 nd row. The Yukon XL stretches out further than the Yukon in the 3 rd row, providing 36.7” and making it one of the most passenger-friendly options on the road. Add the Denali or AT4 trim and you get features like an air ride adaptive suspension, premium leather seating, and the kind of road presence that's hard to ignore. For those considering GMC SUVs, the Yukon lineup represents the top of the class in size and refinement. Which Trim Level Is Right for You? Beyond the base models, GMC's Denali and AT4 trims offer distinct personalities. Denali trims are focused on luxury think premium materials, exclusive styling, and additional comfort features like heated, ventilated, massaging seats and executive 2 nd -row seating. AT4 trims, on the other hand, lean into off-road readiness with raised suspension, skid plates, and all-terrain tires. If Southern California's backcountry trails call to you, the AT4 is worth exploring. If you prefer a refined experience on and off the highway, Denali delivers on that front. Either way, speaking with a GMC dealer in Simi Valley, CA, is the best way to explore the full lineup and find your ideal match. Visit Alexander Buick GMC in Simi Valley, CA Choosing the right GMC SUV doesn't have to be complicated. Whether the Terrain, Acadia, or Yukon feels like the right fit, there's an option in the GMC lineup that matches your California lifestyle. Stop by Alexander Buick GMC Simi Valley and we’ll walk you through current inventory, and you can take a test drive. Let the right SUV find you.

2026 GMC Acadia 

What You Need to Know About the 2026 GMC Acadia

The 2026 GMC Acadia is a mid-size SUV designed for families and adventurers alike. With three rows of versatile seating, a bold exterior, and a long list of standard safety features, it's built to handle everything from daily commutes to weekend road trips. If you're in the market for a capable, well-equipped SUV, the Acadia deserves a close look. more Exploring the 2026 GMC Acadia Trims One of the best things about the 2026 GMC Acadia is how much variety it offers across its trim lineup. The 2026 GMC Acadia trims include the Elevation, AT4, Denali, and Denali Ultimate — each designed with a distinct personality and purpose. The Elevation serves as the entry point and comes well-equipped right out of the gate. It includes a 2.5L turbo engine producing 328 hp and 326 lb.ft. of torque, a 15-inch diagonal Premium GMC Infotainment System, a Bose 12-speaker audio system, and seating for up to eight passengers. The AT4 is the off-road-focused option. It adds an Active Torque Control all-wheel drive system, an off-road-tuned suspension, a lifted ride height, and 18-inch dark machined aluminum wheels wrapped in all-terrain tires. It also features an AT4-exclusive Terrain Mode through the Traction Select System and a distinctive Forest Storm interior with Mahogany accents. The Denali brings a more refined, upscale experience. It swaps in leather-appointed first- and second-row seats, a unique Denali grille with Galvano Silver accents, 20-inch machined aluminum wheels with a Pearl Nickel finish, and a configurable 8-inch diagonal Head-Up Display. Heated and ventilated front seats are standard, as are third-row power-folding seats and second-row one-touch folding seats. The Denali Ultimate sits at the top of the lineup and includes everything in the Denali, plus Super Cruise hands-free driver assistance technology with a three-year OnStar One plan, a panoramic sunroof, a Bose 16-speaker Performance Series sound system, and Woodland Mahogany full-leather massaging front seats with plaited contrast stitching. Technology That Keeps You Connected The 2026 GMC Acadia puts a strong emphasis on in-vehicle technology, and it shows throughout the cabin. The standard 15-inch diagonal Premium GMC Infotainment System features a color touchscreen with Google built-in compatibility and voice-activated technology. It supports both wireless Apple CarPlay® and Android Auto™, so connecting your smartphone is seamless. An 11-inch diagonal Driver Information Center is standard across all 2026 GMC Acadia trims, giving every driver access to a digital cluster they can customize to suit their preferences. An 8-inch diagonal configurable Head-Up Display is available on the Elevation and AT4 and comes standard on the Denali and Denali Ultimate. For those who want the ultimate in convenience, available Super Cruise hands-free driver assistance technology lets you go hands-free on a growing network of compatible roads. The system is standard on the Denali Ultimate and available on the Elevation, AT4, and Denali. The Acadia also includes six USB ports total a mix of Type-A and Type-C ports spread across all three rows — so passengers in every seat can stay charged and connected. Safety Features Built Into Every Model Safety is a major priority with the 2026 GMC Acadia, and the numbers back that up. Every trim comes standard with more than 19 safety and driver assistance features, giving every driver a strong foundation of protection before they even consider optional add-ons. Standard features across all trims include Enhanced Automatic Emergency Braking, Blind Zone Steering Assist, Forward Collision Alert, Rear Cross Traffic Braking, Adaptive Cruise Control, Lane Keep Assist with Lane Departure Warning, Reverse Automatic Braking, and a Rear Camera Mirror, among others. Nine camera views are also standard, including HD Surround Vision, which makes navigating tight spaces and parking lots much more manageable. Remote Start is standard across the entire lineup as well, which is a handy feature for drivers in Simi Valley, California, where temperatures can vary significantly between seasons. Capability and Cargo Space The 2026 GMC Acadia doesn't just look capable — it delivers where it counts. The standard 2.5L turbo engine pairs with an eight-speed automatic transmission to provide responsive, confident performance. When properly equipped with the Trailering Package, every Acadia trim can tow up to a maximum of 5,000 lbs. The Traction Select System adds another layer of capability by allowing drivers to switch between up to six drive modes depending on road conditions. The AT4 adds an exclusive Terrain Mode for more demanding off-road situations. Inside, the Acadia offers impressive cargo flexibility. With all seats up, the third row provides 23.0 cu.ft. of space behind it. Fold down the second and third rows, and that expands to a maximum of 97.5 cu.ft. behind the first row — plenty of room for luggage, gear, or groceries. The AT4's lifted ride height gives it a ground clearance of 7.7 inches, compared to 6.7 inches on the Elevation and 7.3 inches on the Denali and Denali Ultimate. Bold Exterior Design The exterior of the 2026 GMC Acadia makes a confident statement. Its long wheelbase, tall ride height, and wide stance give it a bold, commanding road presence. Signature LED headlamps are standard on the Elevation, while the AT4 features exclusive Night Rider chrome accents and the Denali adds animated lighting and Galvano Silver finishes. The Denali Ultimate goes a step further with a Vader Chrome grille and GMC emblems for a striking, premium look. For added convenience, every trim features the Autosense power liftgate, which opens hands-free when you approach the rear of the vehicle with your key for a small but practical touch that makes a real difference on busy days. The Acadia is available in several exterior colors, including Glacier White Tricoat, Summit White, Ebony Twilight Metallic, Volcanic Red Tintcoat, Sterling Metallic, and Crystal Metallic. Visit Us to Explore the 2026 GMC Acadia Whether you're drawn to the everyday practicality of the Elevation or the refined luxury of the Denali Ultimate, the 2026 GMC Acadia has a trim that fits your lifestyle. The wide range of 2026 GMC Acadia trims means there's a configuration for nearly every type of driver, from families needing three rows of space to adventure-seekers who want off-road capability. Stop by Alexander GMC of Simi Valley to explore the full Acadia lineup in person. Our team is ready to help you find the right trim, answer your questions, and get you behind the wheel. Visit us online at simigmc.com to browse current inventory or schedule a test drive today.