2022 GMC SIERRA 1500 CREW CAB

If you've been searching for a capable, refined, and fuel-efficient full-size truck, this 2022 GMC Sierra 1500 AT4 for sale at Platinum Sales and Services Inc in Norco, CA is exactly what you've been looking for. With 56,818 miles, a turbocharged 3.0-liter inline-six diesel engine, and an off-road-ready AT4 trim package, this white crew cab short-bed puts premium truck ownership within reach at $44,995 — well below the original MSRP of a new Sierra AT4 Diesel.

About This 2022 GMC Sierra 1500 AT4 Crew Cab

The 2022 Sierra 1500 AT4 is one of GMC's most compelling configurations — blending rugged off-road capability with the kind of upscale interior that competes with luxury truck brands. This specific example presents in clean white exterior paint and comes equipped with the rare and desirable 3.0L Duramax Turbo-Diesel engine, a powertrain that's still highly sought after by truck buyers who want both towing strength and fuel economy. At just under 57,000 miles, this truck is well past its initial break-in period but has significant life ahead — a diesel-powered half-ton like this is engineered to go well beyond 200,000 miles with proper maintenance.

2022 GMC Sierra 1500 Performance and Engine

3.0L Duramax Turbo-Diesel — The Efficient Workhorse

The 3.0-liter inline-six Duramax diesel under the hood of this Sierra produces 277 horsepower and 460 lb-ft of torque, making it one of the most capable and fuel-efficient engines in the half-ton segment. Paired with a 10-speed automatic transmission with overdrive, this combination delivers smooth power delivery at highway speeds and serious pulling capability — the Sierra 1500 Diesel is rated to tow up to 9,100 lbs when properly equipped. Real-world fuel economy typically lands in the 23–28 MPG range on the highway, which is exceptional for a full-size 4WD crew cab truck. The 4-wheel drive system on the AT4 adds confidence on loose surfaces, muddy trails, and rain-soaked Southern California roads.

AT4 Off-Road Hardware

The AT4 isn't just a badge — it brings genuine off-road upgrades over the base and SLE trims. Expect Rancho monotube shocks, a 2-inch factory suspension lift, a locking rear differential, skid plates protecting the underbody, and Hill Descent Control. For buyers in Norco and the greater Riverside County area who want a truck that's comfortable on the 15 Freeway and capable on a weekend trail run, the AT4 Diesel genuinely delivers on both fronts.

GMC Sierra AT4 Features and Interior

Premium Cabin and Technology

Step inside the crew cab and you'll find an interior that punches above its class. The AT4 trim brings leather-appointed seating, heated front seats, and a heated steering wheel — appreciated during cooler Inland Empire mornings. The GMC Infotainment 3 system features a large touchscreen display with wireless Apple CarPlay and Android Auto compatibility, keeping you connected without the hassle of cables. A Bose premium audio system, rear-seat USB ports, and a power-adjustable driver's seat round out the comfort features. The crew cab configuration provides genuine rear-seat legroom, making this a practical daily driver for families or work crews alike.

Safety and Driver Assistance

The 2022 Sierra 1500 AT4 includes GMC's ProGrade Trailering System, a Multi-Color Surround Vision camera, Forward Collision Alert, Lane Keep Assist, and Automatic Emergency Braking. These aren't just checkbox features — for a truck you'll be driving daily through Riverside County traffic and towing on weekends, they add meaningful peace of mind.

GMC Sierra Reliability and Ownership

The Sierra 1500 with the 3.0L Duramax diesel has earned a strong reputation among truck owners and automotive journalists alike. The engine itself is based on proven diesel architecture and has demonstrated excellent long-term durability in early ownership reports. Unlike some diesel powertrains in larger trucks, the 3.0L inline-six in this application is known for being relatively low-maintenance — it does not use a diesel particulate filter regeneration cycle that's problematic in short-trip driving, and it pairs well with GM's 10-speed automatic. Owners consistently report high satisfaction with fuel economy, ride quality, and towing confidence. The AT4's suspension tuning also receives praise for absorbing rough road surfaces better than competitors while still maintaining composed highway manners.

Why Buy From Platinum Sales and Services Inc in Norco, CA

Platinum Sales and Services Inc is a trusted independent dealer located in Norco, in the heart of Riverside County, California. Independent dealers like Platinum Sales often carry hand-selected inventory with strong value pricing — and this Sierra AT4 Diesel is a prime example of that philosophy. You're getting a premium, low-depreciation truck at a price that's thousands below comparable dealer-certified examples. The team at Platinum Sales and Services is straightforward and knowledgeable, and with a direct line at 951-519-7008, getting answers is easy. Whether you're in Norco already or making the drive in from around the region, this is a dealership worth your time.

Financing a Used GMC Sierra Near Norco, CA

Financing a pre-owned truck doesn't have to be complicated. Platinum Sales and Services Inc works with a range of lenders to help buyers throughout Riverside County find a payment structure that works for their budget. Whether your credit is excellent, rebuilding, or somewhere in between, there are options available. At $44,995, this Sierra AT4 Diesel represents solid value with strong resale — meaning lenders view it favorably as well. Call 951-519-7008 to discuss your financing options before your visit, or come in to the lot in Norco and let the team walk you through the numbers in person.

Frequently Asked Questions

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

Yes — the 2022 Sierra 1500 AT4 with the 3.0L Duramax diesel is widely considered one of the best used truck values in the half-ton segment. It combines off-road capability, strong towing, excellent fuel economy, and a premium interior at a price point that's well below new.

How many miles is too many on a used GMC Sierra Diesel?

Diesel engines in modern half-ton trucks are built for longevity. A well-maintained 3.0L Duramax in a Sierra can realistically reach 200,000–250,000 miles or more. At 56,818 miles, this example is just entering the sweet spot of its service life.

What does the AT4 trim include on the Sierra 1500?

The AT4 is GMC's off-road-focused premium trim. It includes Rancho monotube shocks, a 2-inch suspension lift, skid plates, a locking rear differential, off-road tires, leather seating, heated seats and steering wheel, a premium audio system, and a full suite of driver assistance technology.

What is the towing capacity of the 2022 GMC Sierra 1500 with the diesel engine?

When properly equipped, the 2022 GMC Sierra 1500 with the 3.0L Duramax diesel is rated to tow up to 9,100 lbs — well suited for trailers, boats, and weekend equipment hauling throughout Southern California.

Why should I choose a diesel engine in a half-ton pickup truck?

The diesel advantage comes down to torque and efficiency. The 3.0L Duramax delivers 460 lb-ft of torque at low RPM for strong towing, while returning exceptional fuel economy — typically 23–28 MPG highway — compared to gasoline-powered half-tons in the same weight class.

Serving Norco and Surrounding Areas in Riverside County

Platinum Sales and Services Inc proudly serves truck buyers throughout Norco and across Riverside County, California. Customers regularly make the trip from Corona, Eastvale, Jurupa Valley, Mira Loma, Ontario, Chino, and communities throughout the Inland Empire to shop the inventory at Platinum Sales. Located conveniently near the 15 and 91 freeway corridors, the dealership is easy to reach whether you're coming from the western or eastern reaches of Riverside County. If you're looking for a used GMC Sierra 1500 AT4 in Riverside County or the broader Southern California region, this is a listing worth acting on quickly.

Contact Platinum Sales and Services Inc Today

Don't miss your chance to own this 2022 GMC Sierra 1500 AT4 Crew Cab Diesel in white — Stock #566997, VIN 1GTUUEETXNZ566997. At $44,995, it's priced to move. Call Platinum Sales and Services Inc in Norco, CA at 951-519-7008 to schedule a test drive, ask about financing, or simply confirm availability. The team is ready to help you get behind the wheel of one of the most capable and efficient trucks on the lot. Come see it in person — you'll understand immediately why the Sierra AT4 Diesel stands apart.