Your Guide to the 2027 GMC Acadia Denali Ultimate

GMC Super Cruise® has become one of the most talked-about features across the GMC lineup, bringing together convenience and safety in one impressive package. Super Cruise® is GMC's hands-free driving technology, designed to make those long highway stretches less taxing on you, while keeping you firmly in control—even with a trailer in tow. It's not “self-driving” in the full sense of the word. Think of it more as a highly capable driving assistant that steps in on compatible roads in Mandan, North Dakota and beyond. How Compatible-Road Mapping Makes It Possible Super Cruise® relies on a precisely mapped database of compatible highways across the United States and Canada. These roads have been pre-scanned using LiDAR (light detection and ranging) technology to create highly accurate 3-dimensional maps. When your GMC detects that you're traveling on a compatible road, the system can activate. This mapping is what separates Super Cruise® from basic Adaptive Cruise Control—it knows exactly where the road curves, where lanes begin and end, and what's ahead. Without this foundation, the hands-free experience simply wouldn't be safe or reliable. Lane Centering and Adaptive Cruise Control Once Super Cruise® is active, it uses a combination of GPS, cameras, and sensors to keep your vehicle centered in the lane. This is the lane-centering feature at work—it makes subtle steering adjustments continuously so you don't drift. At the same time, Adaptive Cruise Control manages your speed and following distance from the vehicle ahead. If traffic slows, your GMC slows with it. If it clears, your vehicle returns to your set speed. Together, these two systems work seamlessly to make highway driving noticeably less physically demanding. Additionally, if you’ve got a trailer in tow, you’re still able to use Super Cruise®. The system features Automatic Trailer Detection and can even recognize some trailers with sensors if there’s no electrical connection. The Super Cruise® system accounts for the trailer’s additional weight and size, adjusting braking, steering, and acceleration accordingly. The Driver Attention System Here's where GMC hands-free driving technology shows real thoughtfulness. Super Cruise® doesn't just let you check out—it keeps tabs on you through a small infrared camera mounted on the steering column. This camera monitors your eyes and head position to confirm that you're still paying attention to the road. If the system senses you're looking away for too long, it sends alerts through the steering wheel light bar, audio cues, and seat vibrations to bring your focus back. If you still don't respond, Super Cruise® will gradually slow the vehicle and, as a last resort, bring it to a stop and contact OnStar® for assistance. This layered approach is what makes Super Cruise® more than just a convenience feature—it's a responsible one. Which GMC Vehicles Offer Super Cruise®? Super Cruise® is available on select GMC models, including certain Sierra 1500, Sierra HD, and Yukon trims, among others in the lineup. Availability can vary by trim level and package, so it's worth checking which configuration best fits your needs. Drivers in Mandan, ND looking to experience GMC hands-free driving technology firsthand can explore the full GMC lineup to find the right match. Ready to Experience How GMC Super Cruise® Works? Understanding how does GMC Super Cruise® works is one thing—experiencing it is another. The combination of compatible-road mapping, lane centering, Adaptive Cruise Control, and driver attention monitoring creates a genuinely capable system that makes long highway drives more manageable. Stop by Schwan Buick GMC Learn more about Super Cruise®-equipped models and find the right GMC for your next adventure in Mandan, North Dakota—or wherever the map leads you.

If you own a Duramax®-powered GMC Sierra, don’t wait until the first freeze to think about your diesel truck’s winter maintenance. September is the ideal window to assess your truck's condition before cold temperatures make every task harder. Drivers in Mandan, North Dakota know how quickly conditions can shift, and getting ahead of the season now means fewer surprises when it matters most. Check Your Fuel System for Cold-Weather Readiness Diesel fuel behaves differently in cold weather than gasoline does. As temperatures drop, diesel can begin to gel, restricting flow through your fuel lines and filters. One of the most important GMC Sierra Duramax® cold weather tips is to switch to a winter-blend diesel fuel or add a quality anti-gel fuel additive before temperatures dip below freezing. You should also replace your fuel filter if it is overdue, since a clogged filter puts extra strain on the system when the engine is working hardest. Inspect Your Batteries and Electrical System Diesel engines rely on strong battery power to fire up in cold weather because they require higher compression to ignite. A battery that functions adequately in summer may struggle to turn over a Duramax® engine on a January morning. Have your battery load-tested in September while conditions are still manageable. Check the terminals for corrosion, inspect the cables for wear, and confirm that your alternator is charging properly. Many Duramax® trucks use dual batteries, so both units need to be evaluated. Review Your Coolant and Glow Plugs Your cooling system plays a critical role in diesel truck winter maintenance. Verify that your coolant mixture provides adequate freeze protection for the low temperatures common in Mandan, ND. A 50/50 mix of coolant and distilled water is a reliable starting point, but North Dakota winters may call for a richer coolant concentration. While you’re at it, have your glow plugs inspected. These components pre-heat the combustion chambers to help the engine start reliably in cold weather, and a failing glow plug can lead to hard starts or misfires. Evaluate Your Oil Viscosity Engine oil thickens in cold temperatures, which slows lubrication at startup—the most wear-intensive moment for any engine. Check your owner's manual for the recommended cold-weather oil viscosity for your specific Duramax® engine. Switching to a lower-viscosity oil for winter months can help ensure that critical components are protected from the moment you start your truck. This is one of the simplest, but most effective cold-weather tips for your GMC Sierra’s Duramax® engine that you can act on right now. Prepare Your Tires and Brakes Traction and stopping power are non-negotiable when snow and ice arrive. Inspect your tire tread depth and sidewalls for any cracking or damage. If you run all-season tires, confirm they’re rated for winter conditions. Examine your brake pads and rotors as well, since cold weather can expose weaknesses that are less noticeable during summer driving. A truck that tows or hauls through winter weather needs a braking system that’s fully up to the task. Visit Schwan Buick GMC Before the Season Changes The best diesel truck winter maintenance plan includes a professional inspection by technicians who know your vehicle. The team at Schwan Buick GMC can help you get your GMC Sierra Duramax® ready for whatever the season brings. Start September Strong and Drive with Confidence Diesel truck winter maintenance does not have to be overwhelming. By working through this checklist in September, Duramax® owners can head into the colder months with confidence. From fuel system care to battery checks and glow plug inspections, each step you take now protects your investment and keeps your GMC Sierra running reliably all winter long. Visit Schwan Buick GMC online to schedule your seasonal service in Mandan, North Dakota today.

Just because you aren’t buying a brand-new vehicle doesn’t mean you should have to compromise security and confidence. If you're looking for a quality pre-owned SUV but want more peace of mind than a handshake can give you, the Buick Certified Pre-Owned benefits program is worth a close look. Whether you're shopping from Mandan, Bismarck, or anywhere in between in North Dakota, understanding what CPO means for Buick can help you make a smarter, more confident buying decision. What Is the Buick Certified Pre-Owned Program? The Buick Certified Pre-Owned benefits program is designed to give buyers the reliability of a new vehicle purchase with the value of a pre-owned price. To qualify, vehicles must meet strict age and mileage requirements. Then they must pass a 172-point inspection covering everything from paint to brakes. Anything not up to standard must be repaired or replaced. This means every Buick CPO vehicle has been carefully reviewed before it ever reaches the lot. You're not just buying a used car—you're buying one that's been held to a higher standard. CarBravo is GM’s Certified Pre-Owned marketplace where you can browse vehicles and learn more about the program. The Buick CPO Warranty One of the biggest draws of a Certified Pre-Owned Buick is the coverage that comes with it. The Buick CPO Bumper-to-Bumper Limited Warranty covers CPO vehicles less than 10 model years old with less than 100,000 miles. You get 12 months or 12,000-mile coverage with no deductible that includes a long list of components. The BravoBudget Powertrain Limited Warranty covers CPO vehicles between 10 and 15 years old with mileage between 100,000 and 150,000 miles. Its added protections like these that reflect the confidence Buick has in their vehicles’ reliability and quality. Additional Buick Certified Pre-Owned Benefits Worth Knowing But wait, there’s more! CPO Buick vehicles include 24/7 roadside assistance, making it easier to handle unexpected situations no matter where you're driving. Every Buick CPO vehicle also comes with a CARFAX® Vehicle History Report, so you can review the vehicle's background before committing. That kind of transparency matters, especially when you're making a significant purchase. Beyond the warranty itself, Buick Certified Pre-Owned benefits extend to the ownership experience. CPO buyers may have access to special financing rates through GM Financial, which can make monthly payments more manageable compared to standard used vehicle financing. Some offers may also include trial periods for OnStar®, Buick's connected services platform, which provides features like emergency response, turn-by-turn navigation, and vehicle diagnostics. The myBuick mobile app is another perk worth mentioning. CPO owners can use it to access vehicle information, schedule service, and stay connected to their Buick from their smartphone. It's the kind of ownership support that typically comes with a new vehicle purchase—extended to the CPO experience as well. Why Buick CPO Makes Sense for Bismarck and Mandan Shoppers For drivers in the Bismarck and Mandan, ND area, a CPO Buick offers a practical way to get into a refined, well-equipped SUV without the new vehicle price tag. Buick's lineup—including popular models like the Encore GX, Envision, and Enclave—offers a lot of space, technology, and comfort. Choosing a CPO version of one of these models means you're getting those features with added protection built in. At Schwan Buick GMC, the team is ready to help you explore available certified pre-owned inventory and walk you through all the Buick Certified Pre-Owned benefits in detail. Visit to browse current CPO listings and find the right fit for your lifestyle and budget. Explore Buick Certified Pre-Owned at Schwan Buick GMC Shopping for a CPO vehicle is one of the smartest ways to balance quality and value. The Buick certified pre-owned benefits program gives you warranty protection, financing options, ownership tools, and the reliability of a thoroughly inspected vehicle. If you're ready to take the next step, Schwan Buick GMC is here to help. Stop in or visit us to get started today.