Used 2025 GMC Sierra AT4

Stock: 205028AVIN: 1GT4UPEY8SF205028

Stock: 205028A VIN: 1GT4UPEY8SF205028

Used 2025 GMC Sierra AT4

Detailed Pricing
McGraw Motors Price:
$67,179
Doc Fee:
$225
McGraw Ford Price:
$67,404
View Window Sticker

Vehicle Highlights

Views
110
Overview
205028A
Stock
1GT4UPEY8SF205028
VIN
49,528
Miles
Truck
Body
4X4
Drivetrain
Titanium Rush Metallic
Exterior
JET BLACK W/KALAHARI ACCENTS
Interior
159
Wheelbase
V8, 6.6L
Engine
Diesel
Fuel
10-speed automatic
Transmission
4
Doors
Crew Cab
Cab Type
Description
Vehicle Details
Discover the capability and refinement of this pre-owned 2025 GMC Sierra 2500 AT4, now available in Corpus Christi, TX. With 49,528 miles, this heavy-duty pickup is built to handle demanding jobs, weekend towing, and everyday driving with confidence. Powered by a proven V8 6.6L Diesel engine and equipped with 4WD, the GMC Sierra 2500 AT4 delivers the strength, traction, and durability serious truck shoppers expect. The AT4 trim adds rugged off-road styling and premium comfort throughout the cabin. Inside, you'll find thoughtful features designed to keep every drive convenient and connected, including Steering Wheel Audio Controls, Hands Free Bluetooth, a BOSE Stereo, and a Heated Steering Wheel for added comfort on cooler mornings. This truck is also a CARFAX 1-Owner vehicle, giving buyers added peace of mind and a well-documented ownership history. Whether you need a dependable diesel truck for hauling, towing, or daily use, this GMC Sierra 2500 AT4 stands out for its capability and upscale interior features. Its bold exterior, refined ride, and utility make it a great fit for contractors, ranchers, and drivers who want premium performance in a tough package. If you're searching for a pre-owned GMC Sierra 2500 in Corpus Christi, TX, this 4WD diesel pickup deserves a closer look. Visit us today to see why the GMC Sierra 2500 AT4 remains a top choice among heavy-duty trucks.

Equipment
This vehicle's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. This 2025 GMC Sierra 2500 has a clean CARFAX vehicle history report. Never get into a cold vehicle again with the remote start feature on this 2025 GMC Sierra 2500. The leather seats in this 3/4 ton pickup are a must for buyers looking for comfort, durability, and style. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this 3/4 ton pickup. Anywhere on the planet, you will have hundreds of digital stations to choose from. This vehicle is a certified CARFAX 1-owner. An off-road package is equipped on this 2025 GMC Sierra 2500. See what's behind you with the back up camera on this model. This GMC Sierra offers Android Auto for seamless smartphone integration. It's Lane Departure Warning keeps you safe by alerting you when you drift from your lane.

Packages
Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners. AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. Titanium Rush Metallic. LED Smoked Amber Roof Marker Lamps. Trailer Tire Pressure Monitor Sensors. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Features
Adaptive Cruise

Adaptive Cruise

Apple CarPlay

Apple CarPlay

Bed Liner

Bed Liner

Blind Spot Monitor

Blind Spot Monitor

Bluetooth®

Bluetooth®

Brake Assist

Brake Assist

Collision Warning

Collision Warning

Ventilated Seats

Ventilated Seats

Cross-Traffic Alert

Cross-Traffic Alert

Cruise Control

Cruise Control

Heated Seats

Heated Seats

Lane Keep

Lane Keep

Leather Seats

Leather Seats

Multi-zone Climate

Multi-zone Climate

Parking Assist

Parking Assist

Power Seat

Power Seat

Power Windows

Power Windows

Premium Audio

Premium Audio

Push Button Starting

Push Button Starting

Rain Sensing Wipers

Rain Sensing Wipers

Rear Heated Seats

Rear Heated Seats

Rearview Camera

Rearview Camera

Satellite Radio

Satellite Radio

Security System

Security System

Sunroof / Moonroof

Sunroof / Moonroof

Sunshade

Sunshade

WiFi Hotspot

WiFi Hotspot

LED Headlights

LED Headlights

Remote Start

Remote Start

Tow Hitch

Tow Hitch

Heated Steering Wheel

Heated Steering Wheel

Details
Model Overview
The Sierra HD comes in one of several different body styles with long and short bed options. However, despite this complexity there are only two available engines, both V8 units displacing 6.6 liters. The gasoline option makes 401 horsepower and 464 lb-ft of torque. The more expensive diesel engine is aided by a turbocharger and makes 470 horsepower and a massive 975 lb-ft of torque. Unlike the gasoline engine, the diesel is mated to a 10-speed automatic to handle all that torque. When properly equipped, a Sierra HD 3500 should be able to tow up to 35,000lbs with a 5th wheel attachment, or 20,000 lbs with a traditional trailer hitch, thanks in large part to the massive torque produced by its diesel V8. Sierra HD models are available with either rear-wheel drive of selectable four-wheel drive.

The Sierra HD comes in either 2500 form or 3500 form with 3500 versions offering a bit more towing capacity and payload because they can be optioned with a "dually" setup, giving the truck an extra pair of wheels on the rear axle. Both trucks can be optioned with a regular cab, a double cab featuring four conventional doors, or a crew cab with even bigger rear seats. Truck beds are either 6'9" or 8' depending on configuration, though the only restriction to bed size is in the regular cab version, which always comes with the longer bed.

In addition to copious options for the basic architecture of the truck, Sierra buyers are also offered plenty of choices when it comes to the tech in their new vehicle. GMC's ProGrade Trailering system features fifteen camera views to help keep an eye on things behind the truck, even counting a class exclusive transparent trailer view among its features. The available heads up display on the Sierra HD is massive, measuring 15-inches across, while the rear-view mirror can be switched between displaying an actual mirror and the view from the rearward facing camera. GM claims their MultiPro tailgate is the world's first six-function tailgate. In practice that means it's easy to load things into and out of the back of the truck, while also providing a ton of utility options for carrying loads with the tailgate dropped. It also has a built-in step to make it easier to climb in and out of the bed of the truck.

Concentrating on off-roading capabilities, 4AT models come standard with four-wheel drive along with a more off-road biased suspension setup that includes Rancho Shocks. Other standard features on the 4AT include skid plates, an Eaton locking differential, Michelin all-terrain tires, a heads-up display, GMC's HD Surround Vision camera system, hill descent control and an off road mode.

Most buyers though, will probably opt for the Denali version of the Sierra HD. Available in both 2500 and 3500 forms, Denali versions of the Sierra HD come standard with the bigger crew cab, body colored front and rear bumpers, LED lights in the cargo bed, tinted glass, LED headlights, daytime running, front fog and taillights, powered external mirrors, a MultiPro tailgate, UltraSonic front and rear parking sensors, Lane Departure Warning, Lane Change Alert with Automatic Braking, Rear Cross-Traffic Alert, Following Distance Indicator and Hill Descent Control (HDC).

The Denali Interior features include, 4G LTE Wi-Fi, Bluetooth and Apple CarPlay\Android Auto connectivity, a 13.4-inch infotainment screen and a 12.3-inch digital instrument cluster, a 7-speaker sound system, dual-zone climate control, heated front and rear seats, vented front seats, a heated steering wheel, keyless start and wireless device charging.
Model Strengths
Towing Capacity
Interior Space
Well Thought Out Technology
Available Off-road Equipment
Powerful Engine Options
Upscale Denali Edition
Model Changes
The GMC Sierra 2500HD and 3500HD roll into 2025 with minimal changes.
Model Value
The GMC Sierra HD competes with the RAM 2500 and 3500 as well as the Ford F-250 and F-350. The Sierra costs a bit more than its competitors, but it comes with a bigger and more powerful engine than the Ford, while the Dodge is significantly cheaper for the stripped down 'Tradesman' trim level. In addition to its robustness, the Sierra comes with a ton of tech to make trailering easier, including an available camera system that utilizes no fewer than fifteen cameras. Meanwhile, those who want all that functionality with a good dose of comfort, will find no better truck than the upscale Denali versions of the Sierra HD.
Features
Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners
AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps
AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote
Power-Retractable Black Assist Steps
Technology Package
Power Sunroof
Titanium Rush Metallic
LED Smoked Amber Roof Marker Lamps
Trailer Tire Pressure Monitor Sensors
Apple CarPlay/Android Auto smart device wireless mirroring
Forward Collision Alert with Automatic Braking
Front Pedestrian Braking
Wi-Fi Hotspot capable mobile hotspot internet access
HD Rear Vision Camera w/Hitch View rear mounted camera
Adaptive cruise control
Head-up display
Automatic Emergency Braking predictive brake assist system
Cruise control with steering wheel mounted controls
Ventilated driver and front passenger seats
Keyfob remote start
Heated steering wheel
Heated driver and front passenger seats
Heated rear seats
Leather front seat upholstery
Primary monitor touchscreen
Lane Departure Warning
Rear Cross-Traffic Alert collision warning
First-row sliding and tilting glass sunroof with express open/close activation sunshade
Driver seat power reclining
lumbar support
cushion tilt
fore/aft control and height adjustable control
AutoTrac part and full-time 4WD
Front wireless smart device charging
Google Built-In built-in virtual assistant
Teen Driver restricted driving mode/alerts
Keyless Open/Keyless Start with hands-free access and push button start
Keyfob window control
HD Surround Vision w/Hitch View aerial view camera
Smart device remote start
Push-button
GCW Alert weight capacity alert
Video-feed rearview mirror
Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
Bluetooth wireless audio streaming
Hitch Guidance vehicle to trailer hitching assist
Gauge cluster display size: 12.30
Front mounted camera with washer
Right side camera
Pickup box camera
Left side camera
Trailer Side Blind Zone Alert blind spot warning
Following Distance Indicator
Trailer tire pressure and temperature sensors
Trailer light test
Trailer light malfunction warning
Trailer theft alarm
Dual-zone front climate control
Full gauge cluster screen
Auto high-beam headlights
Immobilizer
Bose speakers
Package
X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
Mechanical
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
Hill Descent Control
Transfer case, two-speed active, electronic Autotrac with push button control
Auto-locking rear differential
Four wheel drive
Cooling, external engine oil cooler
Cooling, auxiliary external transmission oil cooler
Air filter, heavy-duty
Air filtration monitoring
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
Trailer brake controller, integrated
In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
Recovery hooks, Red
Skid Plates protect the oil pan, front axle and transfer case
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
Suspension, Off-Road includes twin-tube shocks
Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Brake lining wear indicator
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
Exterior
Tire, spare LT275/70R18 all-terrain, blackwall
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Bumper, front, body-color lower
Bumper, rear body-color with bumper CornerSteps
Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (TCH), not available with any other Ship Thru code.)
Bed Step, Black integrated on forward portion of bed on driver and passenger side
CornerStep, rear bumper
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Wheelhouse liners, rear
Moldings, beltline, Black
Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
Fog lamps, LED
Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting
Mirror caps, high gloss Black
Glass, deep-tinted
Wipers, front rain-sensing
Door handles, body-color
Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Tailgate and bed rail protection caps, top
Entertainment
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
Interior
Seat, Up-level Rear with Storage Package 60/40 folding bench, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
Seat adjuster, driver 10-way power including lumbar
Seat adjuster, passenger 10-way power including lumbar
Seats, heated second row outboard seats
Driver memory recalls driver "presets" for power driver seat and outside mirrors
Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Floor covering, color-keyed carpeting
Steering wheel, wrapped
Steering wheel, heated
Steering wheel audio controls
Steering column, manual Tilt-Wheel and telescoping
Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
Rear Seat Reminder
GMC Premium information Display- 13.4" diagonal Multicolor touch screen
Exterior Temperature Display, located in radio display
Compass, located in instrument cluster
Remote vehicle starter system
Adaptive Cruise Control
Wireless Charging
Theft-deterrent system, unauthorized entry
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
USB ports, (2) charge-only, rear
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
Air vents, rear
Air conditioning, dual-zone automatic climate control
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
Safety
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
Front and Rear Park Assist, ultrasonic
Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions
Trailer Camera Provisions and trailer viewing software
Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
Rear Seat Belt Indicator
Rear Cross Traffic Alert
Trailer Side Blind Zone Alert
Seat Belt Adjustable Guide Loops, front row only
Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)
Safety Alert Seat
Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (OnStar Basics includes select remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. For MY25 vehicles, OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
Similar Vehicles

2025 GMC Sierra Denali

Stock: 297535A

Quick View

2024 GMC Sierra AT4X

Stock: 311987A

Quick View

2017 GMC Sierra SLT

Stock: 249248A

Quick View

2016 GMC Sierra SLE

Stock: 222410A

Quick View

Dealer FAQs

Can I get financed for an auto loan at McGraw Ford?

Getting financed with us is fast and fun. Whether you’ve always enjoyed a sterling credit history, are currently working on improving your credit score even more, or this is your first time buying a car, you can count on the friendly experts at McGraw Ford to make the whole process transparent and easy to understand. To learn more and get the ball rolling on the right loan for your unique financial situation, call (361) 758-5361 or apply online now.

What is the financing process like at McGraw Ford?

Easy and relaxed. Our primary goal is your total satisfaction, so we provide you with as much time and expert insight as you need to properly consider all of your loan options. This commitment to friendly, honest, and fair service is truly a breath of fresh air and ensures that you drive away happy, satisfied, and behind the wheel of the vehicle you've always wanted.

What are the steps in the financing process at McGraw Ford?

Great question. Securing a competitive loan from McGraw Ford takes only three easy steps. First up is to either apply online for pre-approval via our quick and convenient online credit application or call (361) 758-5361. From here, one of our financing experts will connect with you to go over the details of your loan offers and ensure that you have everything you need to make a smart and informed decision.

After reviewing your proposed loan terms and consulting with our financial advisors and your trusted personal confidants (friends, family members, etc.), there is only one step left: Finalizing the perfect loan for you via a simple and respectful process. By following these three short steps, you can make the most of the best loan experience here in Corpus Christi.

What is involved in securing an auto loan in Corpus Christi TX?

The answer to this question includes a variety of factors, such as:

  • Your car's purchase price
  • Your trade in and equity position
  • If the vehicle you are purchasing is new or used
  • The length of your existing loan's life
  • Your current credit score
  • How much you are choosing to invest in a down payment

People from all around Corpus Christi come to purchase a clean car, truck, or SUV from our used car lot each and every day. Most loans prepared by our team are entirely unique, so the factors that will shape your bank loan will depend on your specific situation, desires, and needs.

Our expert financial professionals are happy to find and present lots of great offers to ensure that you are in complete control and that you are receiving the best deal possible on the loan you need. Our customers make great and informed decisions based on all of their available options thanks to a perfectly transparent process that we take seriously.

Who can I call at McGraw Ford to get the financing process started?

Any of our amazing specialists will be more than happy to help you get the ball rolling on your dream car. All you have to do is dial (361) 758-5361 when you have a few free moments and you'll soon see that getting approved for a car loan at McGraw Ford is quick, easy, and convenient.

* Pricing -  All vehicle pricing shown is assumed to be correct and accurate. Incentives, credit restrictions, qualifying programs, residency, and fees may raise, lower, or otherwise augment monthly payments. Additionally, incentives offered by the manufacturer are subject to change and may fluctuate or differ based on region and other considerations. Unless otherwise noted or specified, pricing shown does not include title, registration, or tax fees and costs.

* MPG - Vehicle information, as well as features and other inclusions, may vary by model and are based exclusively on standard equipment. No claims, warranties, or guarantees have been made related to the accuracy of customer payments, model equipment, or vehicle pricing. Please call with any questions you might have and to reassert the accuracy of any information presented here.

© 2026 McGraw Ford