2022 GMC SIERRA 1500 LIMITED CREW CAB

If you're hunting for a capable, fully loaded full-size truck in the Atlanta metro area, this 2022 GMC Sierra 1500 Limited Crew Cab AT4 for sale at Pristine Cars & Trucks in Marietta, Georgia deserves a serious look. Equipped with GMC's legendary 6.2-liter EcoTec3 V8, true 4WD, and the rugged AT4 trim package, this is a truck built for buyers who demand both off-road capability and premium comfort — and it's available right here in Cobb County.

About This 2022 GMC Sierra 1500 Limited Crew Cab AT4

The Sierra 1500 Limited designation means this unit was produced as GM extended the outgoing generation into the new model year, carrying over the full suite of proven hardware and technology that made the fifth-generation Sierra so popular. At 168,456 miles, this truck has clearly been put to work — and that's not a bad thing. The 6.2-liter EcoTec3 V8 is an engine with a well-documented reputation for longevity, regularly reaching 200,000-plus miles with proper maintenance. Buyers shopping high-mileage trucks should look for service history and inspect the 10-speed transmission fluid condition, but mechanically, this platform is one of the most robust in the segment. The Crew Cab body style means four real doors and generous rear-seat space, and the 5 3/4-foot bed strikes the right balance between cargo capacity and daily maneuverability.

2022 GMC Sierra 1500 Performance and Engine

6.2-Liter EcoTec3 V8 with Dynamic Fuel Management

The heart of this truck is GMC's 6.2-liter EcoTec3 V8 paired with Dynamic Fuel Management (DFM). This isn't just a big displacement engine for show — DFM actively manages all eight cylinders, cycling between multiple displacement modes in real time to optimize fuel efficiency without sacrificing power when you need it. The result is a V8 that feels effortless at highway speeds, confident when towing, and surprisingly reasonable at the pump for its class.

Backed by a 10-speed automatic transmission with overdrive, power delivery is smooth and well-calibrated whether you're merging onto I-75, hauling a trailer up into the North Georgia mountains, or crawling over uneven terrain in 4WD. The 4WD drivetrain on the AT4 trim is purpose-built for more than light duty — it pairs with an available off-road suspension tune and underbody protection to give this truck genuine capability beyond the pavement.

GMC Sierra AT4 Features and Interior

What the AT4 Trim Brings to the Table

The AT4 sits above the SLT in GMC's lineup and targets buyers who want premium interior refinement alongside legitimate off-road credibility. Standard AT4 equipment on this generation includes a factory-lifted suspension, skid plates for underbody protection, front recovery hooks, and exclusive AT4 badging and trim. Inside, expect heated front seats, a leather-appointed interior, a large infotainment touchscreen with Apple CarPlay and Android Auto compatibility, a premium audio system, and a full suite of driver assistance features including forward collision alert, lane keep assist, and rear camera.

The Crew Cab configuration adds to the livability factor — rear passengers get meaningful legroom that makes this truck genuinely comfortable for five adults on long drives, not just short hauls.

GMC Sierra Reliability and Ownership

The fifth-generation GMC Sierra and its Chevy Silverado twin have earned strong marks from owners for powertrain durability, particularly in trucks equipped with the 6.2-liter V8. The EcoTec3 engine family uses an aluminum block design with direct injection and variable valve timing — a modern architecture that holds up well over time. The 10-speed transmission, co-developed with Ford, had some early tuning criticism but has largely been resolved in later production years.

At this mileage, a prospective buyer should budget for consumables — brakes, tires, belts, and potentially a transmission service if not recently completed. However, owners who maintain this platform properly consistently report trouble-free operation well beyond 200,000 miles. The AT4 off-road components, including the suspension, are durable and replacement parts are widely available and competitively priced.

Why Buy From Pristine Cars & Trucks in Marietta, Georgia

Pristine Cars & Trucks is located in Marietta, in the heart of Cobb County, putting it in one of the most accessible spots in the greater Atlanta area. Whether you're coming off I-75, cutting across from East Cobb, or making the trip from nearby Smyrna or Kennesaw, this dealership is easy to reach. Pristine Cars & Trucks focuses on used vehicles with transparent pricing — the truck you see on this page is the truck you come to see, no surprises. The team understands that high-mileage truck buyers are often experienced, practical shoppers who want straight answers, and that's exactly what you'll get.

Financing a Used GMC Sierra Near Marietta

Financing a used truck with higher mileage is something many lenders handle every day, and Pristine Cars & Trucks works with a range of financial institutions to find options that fit your situation. Whether your credit is excellent, rebuilding, or somewhere in the middle, the finance team can explore what's available. This truck is competitively priced — see the current price listed on this page — and getting pre-qualified is a straightforward process. Come in, bring your ID and proof of income, and let the team walk you through your options with no pressure.

Frequently Asked Questions

Is the 2022 GMC Sierra 1500 Limited AT4 a good buy?

Yes — especially for buyers who need a proven full-size 4WD truck with a powerful V8. The AT4 trim adds off-road capability and premium features that make it versatile for both work and recreation. The 6.2-liter EcoTec3 engine is widely regarded as one of the best truck engines available in its class.
 

Is 168,000 miles too many for a GMC Sierra with a 6.2-liter V8?

Not necessarily. The EcoTec3 6.2-liter V8 is built for longevity and commonly runs past 200,000 miles with regular oil changes and proper maintenance. At this mileage, a pre-purchase inspection and a review of available service records are smart steps — but the engine itself is not a liability at this point in its life.
 

What does the AT4 trim include on the Sierra 1500?

The AT4 trim includes a factory off-road suspension lift, front skid plates, recovery hooks, an off-road-tuned MultiMatic damper system, heated leather seats, a premium infotainment system with wireless connectivity, and exclusive AT4 interior and exterior styling. It's positioned as GMC's off-road-focused trim below the top-tier Denali.
 

What is Dynamic Fuel Management (DFM) on the 6.2-liter EcoTec3?

Dynamic Fuel Management is GM's cylinder deactivation technology that can operate the engine on as few as two cylinders and as many as eight, depending on load and driving conditions. It works seamlessly in the background to improve fuel economy without affecting power delivery, and most drivers never notice the transitions.
 

Does the Sierra 1500 AT4 have real 4WD capability?

Yes. The AT4's 4WD system is a proper four-wheel drive setup designed for off-road use, not just a marketing label. Combined with the lifted suspension, skid plate protection, and available hill descent control, the AT4 can handle mud, snow, gravel, and uneven terrain that would challenge a standard pickup.

Serving Marietta and Surrounding Areas in Cobb County

Pristine Cars & Trucks proudly serves truck buyers throughout Marietta and the broader Cobb County region. Shoppers regularly make the trip from Smyrna, Kennesaw, Acworth, Powder Springs, and Austell, as well as from Cherokee County to the north and Paulding County to the west. The Marietta location puts the dealership within easy reach of most of the northwest Atlanta suburbs, making it a convenient stop whether you're visiting from nearby or driving in from farther out across the metro.

Contact Pristine Cars & Trucks Today

Ready to get behind the wheel of this 2022 GMC Sierra 1500 Limited Crew Cab AT4? Call Pristine Cars & Trucks in Marietta, Georgia at 770-941-1194 to schedule your test drive or ask any questions about the vehicle. Stock number NG156500 is available now — don't wait on a truck like this. Come visit us in Marietta, in Cobb County, and let's get you into the right truck today.