2026 GMC Sierra 1500 AT4
$5,100 more than this car
- 3,710 mi
- 4WD
- Automatic
- Gasoline
- Truck
Northside Ford Lincoln · Effingham, IL · 0 mi away
13,583 miles · truck

Experience rugged capability, premium comfort, and impressive diesel performance with this used 2025 GMC Sierra 1500 AT4 , now available at Russ Braunecker Cadillac Buick GMC in Effingham, Illinois . Equipped with a turbo-diesel engine , this Sierra 1500 AT4 delivers the power and torque drivers want for towing, hauling, off-road adventures, and everyday driving. The 2025 GMC Sierra 1500 AT4 combines the strength of a full-size pickup with specialized off-road capability. Its turbo-diesel engine provides strong low-end torque and confident performance, making this Sierra an excellent choice for drivers who need additional capability for towing trailers, hauling equipment, or tackling challenging terrain. The AT4 stands out with rugged exterior styling, a bold GMC grille, signature C-shaped LED lighting, distinctive AT4 badging, red recovery hooks, dark exterior accents, premium wheels, and an aggressive stance. Its off-road-focused design gives the Sierra a commanding presence while providing the capability to confidently explore beyond the pavement. Inside, the Sierra 1500 AT4 provides a refined cabin designed for both work and recreation. Features include leather-appointed seating, heated and ventilated front seats, a heated steering wheel, power-adjustable seating, automatic climate control, a large GMC infotainment touchscreen, wireless Apple CarPlay and Android Auto?, Google built-in compatibility, wireless smartphone charging, multiple USB ports, and premium audio. For drivers who tow, the combination of the Sierra 1500 AT4 and turbo-diesel engine provides an especially appealing package. Available trailering technologies may include an integrated trailer brake controller, Hitch Guidance, Trailer Sway Control, Tow/Haul mode, multiple camera views, and additional trailer-focused technology designed to make towing easier and more confident. The Sierra AT4 also offers advanced safety and driver-assistance technologies designed to provide additional confidence on and off the road. Features include Automatic Emergency Braking, Forward Collision Alert, Lane Keep Assist with Lane Departure Warning, Blind Zone Steering Assist, Rear Cross Traffic Braking, Adaptive Cruise Control, HD Surround Vision, Rear Pedestrian Alert, and additional intelligent safety technologies. If you're searching for a used 2025 GMC Sierra 1500 AT4 diesel for sale near Effingham, IL , a GMC Sierra 1500 turbo diesel , a pre-owned diesel pickup , a GMC AT4 off-road truck , or a used diesel truck in Central Illinois , this Sierra 1500 AT4 deserves a closer look. Its combination of turbo-diesel performance, off-road capability, towing strength, premium comfort, and bold GMC styling makes it an outstanding choice for both work and adventure. At Russ Braunecker Cadillac Buick GMC , we're proud to offer a carefully selected inventory of quality pre-owned vehicles backed by competitive pricing, flexible financing options, and exceptional customer service. Our knowledgeable team is committed to helping you find the right truck to fit your towing, work, recreation, and lifestyle needs. Contact Russ Braunecker Cadillac Buick GMC at 217-347-0505 or come by 2309 S Banker Street, Effingham, IL 62401 today to schedule your test drive, explore in-house financing options, or learn more about this exceptional 2025 GMC Sierra 1500 AT4 Diesel before it's gone! Happily servicing the Decatur, Mattoon, Effingham, Peoria, Morton, Bloomington, Vandalia, Altamont, Salem, Mt. Vernon, Flora, Louisville, Olney Champaign, Centralia and surrounding areas!
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
In the typical middle range · 33% of 3 similar listings ask more than this car.
How we calculate market value: comparable cars for sale now plus their last listed prices.
Price tracked by AutosXchange since Nov 13, 2026. No price change at this dealership since Nov 13 ($56,270).
AutosXchange Intel Hub: Price changes for this model in Illinois · This model in the Intel Hub · Market movers in Illinois
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 14); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2024–2026 Sierra 1500 AT4 · used · any miles · within 50 miles of Effingham, Illinois. All 3 comparable cars for sale, nearest first.
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Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Northside Ford Lincoln · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
Russ Braunecker Auto Group · Effingham, IL · 0 mi away
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