
GMC AT4
Explore the GMC AT4 Trim at McGonigal Buick GMC
McGonigal Buick GMC offers a range of GMC AT4 models that cater to off-road enthusiasts while delivering the robust performance and luxury that GMC is known for. Whether you're looking for a pickup truck with heavy-duty capabilities or a versatile SUV, the GMC AT4 lineup has something for everyone. The AT4 trim adds off-road enhancements, rugged design elements, and advanced features that set it apart from the standard models. Below is an overview of the available GMC AT4 models and the unique benefits they offer for Kokomo, IN drivers looking to conquer any terrain.
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GMC AT4 Models at McGonigal Buick GMC

GMC Sierra 1500 AT4
The GMC Sierra 1500 AT4 is a full-size pickup truck that is designed for serious off-road performance. Equipped with a range of high-tech off-roading features and rugged design cues, the Sierra 1500 AT4 is perfect for those who want a truck that can handle rough terrains while still providing premium comfort.

Performance
The Sierra 1500 AT4 comes standard with a 3.0-liter Duramax® diesel powerhouse capable of 305 horsepower and 495 pound-feet of torque. For drivers seeking more power, the 6.2-liter V8 engine is available, offering 420 horsepower and 460 pound-feet of torque. Both engine options are paired with a 10-speed automatic transmission, providing smooth gear shifts and reliable performance across all driving conditions.

Off-Road Features
To ensure the Sierra 1500 AT4 is trail-ready, it comes equipped with advanced off-road features like:
- Two-inch factory-installed suspension lift: Provides additional ground clearance to navigate over obstacles.
- Skid plates: Offer protection for the vehicle's underbody while off-roading.
- Red recovery hooks: Functional and stylish, these hooks add a signature GMC AT4 design touch.
- Autotrac® two-speed transfer case: Ensures smooth transitions between two-wheel and four-wheel drive.
- Hill descent control: Helps manage downhill speeds on steep, uneven terrain.

Interior and Tech
Inside the Sierra 1500 AT4, you'll find an upscale cabin with high-end amenities like Jet Black leather seats accented with Kalahari stitching, a heated steering wheel, and a 13.4-inch touchscreen infotainment system with built-in Google services. Advanced safety features, including forward collision warning and lane-keeping assist, come standard.

GMC Sierra HD AT4
For drivers needing a more powerful workhorse, the GMC Sierra HD AT4 takes heavy-duty performance to the next level. The Sierra HD AT4 is ideal for towing and hauling large loads, making it perfect for both work and play.

Power & Performance
The Sierra HD AT4 is available with a 6.6-liter V8 engine that produces 401 horsepower and 464 pound-feet of torque. For those requiring even more power, the 6.6-liter Duramax® turbo-diesel engine delivers an impressive 445 horsepower and 910 pound-feet of torque. The Sierra HD AT4 can tow up to 21,130 pounds, making it an excellent choice for those who need serious towing capabilities.

Off-Road Features
The Sierra HD AT4 is built to handle challenging conditions with features like:
- Ranchero twin-tube shocks: Designed for off-road use, they provide smoother rides on uneven terrain.
- Durable underbody skid plates: Protect essential components from damage.
- Auto-locking rear differential: Automatically locks when it detects wheel slippage, ensuring better traction on rough terrain.

Interior
The interior of the Sierra HD AT4 is equipped with premium materials and advanced technology to enhance your driving experience. Features include heated and ventilated front seats, a customizable 12.3-inch digital driver display, and a wireless charging pad for your smartphone.

GMC Canyon AT4
The GMC Canyon AT4 is a midsize pickup truck that brings off-road capability in a smaller, more maneuverable package. It's perfect for drivers who want an agile truck that can handle both urban streets and rugged trails.

Performance
The Canyon AT4 comes with a powerful 2.7-liter turbocharged engine, delivering 310 horsepower and 430 pound-feet of torque. Paired with an eight-speed automatic transmission, the Canyon AT4 provides a smooth driving experience whether you're on the highway or off-road.
Off-Road Capabilities
The Canyon AT4 is equipped with off-road essentials such as:
- Off-road suspension system: Designed to absorb impacts and maintain stability on rough terrain.
- Four-wheel drive with low-range gearing: Offers better control and handling on steep climbs and rocky paths.
- Skid plates and red recovery hooks: Protects your vehicle and ensures you're prepared for any off-road challenge.
Technology & Interior
The Canyon AT4 is packed with tech features, including an 11.3-inch touchscreen infotainment system, wireless Apple CarPlay® and Android Auto™, and an HD rearview camera with Hitch View. Inside, the cabin is outfitted with Jet Black leather-appointed seats with Kalahari accents, making it both functional and luxurious.

GMC Yukon AT4
The GMC Yukon AT4 is the ultimate SUV for families who crave adventure. With three rows of seating and ample cargo space, the Yukon AT4 blends off-road capability with the comfort and convenience of a full-size SUV.
Performance
The Yukon AT4 offers two engine options: a 5.3-liter V8 engine producing 355 horsepower or a 6.2-liter V8 with 420 horsepower. Both engines are paired with a 10-speed automatic transmission and come standard with four-wheel drive, ensuring a powerful and capable performance on all terrains.
Off-Road Capabilities
Off-road features include:
- Magnetic ride control suspension: Automatically adjusts to different terrain conditions for a smoother ride.
- Active Response 4WD™: Provides superior traction by distributing power to all four wheels as needed.
- Hill descent control and skid plates: Ensure stability and protect the underbody on steep, rocky trails.
Interior
Inside the Yukon AT4, passengers enjoy heated and ventilated seats, a panoramic sunroof, and a 15-inch head-up display. The third-row seating offers plenty of legroom, while the cargo area provides ample space for gear, making the Yukon AT4 perfect for long trips and family adventures.

GMC Acadia AT4
The GMC Acadia AT4 is a midsize SUV that offers a balance between size, performance, and off-road ability. With seating for up to seven, the Acadia AT4 is versatile enough for family outings and adventurous road trips.

Performance & Off-Road Features
The Acadia AT4 is powered by a 3.6-liter V6 engine that produces 310 horsepower. It comes standard with an all-wheel-drive system and features like hill-start assist, hill-descent control, and a twin-clutch all-wheel drive (AWD) system for enhanced traction.
Interior & Comfort
The Acadia AT4 features premium materials inside, including Jet Black upholstery with Kalahari accents, a heated steering wheel, and tri-zone automatic climate control. For added convenience, it also has a hands-free power liftgate and remote start.

GMC Terrain AT4
The GMC Terrain AT4 is a compact SUV that offers off-road capability in a small, versatile package. Perfect for light off-roading and daily commutes, the Terrain AT4 is a great choice for drivers who want the best of both worlds.
Performance
The Terrain AT4 is powered by a 1.5-liter turbocharged engine that produces 170 horsepower. It comes standard with all-wheel drive and an AWD Traction Select system that allows drivers to switch between FWD, AWD, and Off-Road modes.
Off-Road Features & Interior
Off-road features include a front steel skid plate, 17-inch all-terrain tires, and hill-descent control. Inside, the Terrain AT4 offers a comfortable and tech-forward cabin with heated front seats, a seven-inch touchscreen, and available leather upholstery.
Experience the AT4 Trim in Your Favorite GMC Model
The GMC AT4 models available at McGonigal Buick GMC offer the perfect combination of rugged off-road capability, advanced technology, and luxurious interiors. Whether you're looking for a powerful pickup like the Sierra 1500 AT4 or a versatile SUV like the Acadia AT4, there's an AT4 model that suits your lifestyle. Visit McGonigal Buick GMC today to explore the full lineup, discuss financing, and find the perfect GMC AT4 for your next adventure.
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McGonigal Buick GMC
2828 E Markland Ave
Kokomo, IN 46901
- Sales: (765) 293-4101