AT4
Century Buick GMC — Tampa, FL
GMC AT4.
Where the Road Ends,
the Adventure Begins.
AT4 is GMC's premium off-road trim — built to go further, grip harder, and handle what pavement can't. Seven model families. Three capability tiers. Red recovery hooks, all-terrain tires, and Professional Grade DNA standard on every one. In stock now at Century Buick GMC in Tampa.
What Every GMC AT4 Comes With
AT4 isn't a badge you bolt on — it's a package of purpose-built off-road capability that GMC engineers into each vehicle from the ground up. Every AT4 in the lineup shares these core credentials.
Red Front Recovery Hooks
The most recognizable AT4 signature. Those bold red recovery hooks aren't cosmetic — they're fully rated tow points designed to pull you out of the mud, sand, or wherever the terrain takes you. Exclusive to AT4 and above across the entire GMC lineup.
Front Skid Plate & Underbody Protection
Steel skid plates protect the engine, transfer case, and fuel tank from rocks, stumps, and trail debris. The underbody shielding is engineered to take hits so your drivetrain doesn't. Off-road standard, not an add-on.
Off-Road-Tuned Suspension
Every AT4 rides on a lifted, off-road-tuned suspension with increased ground clearance over the base trims. Whether it's rock-crawling low-speed capability or high-speed dirt road confidence, the suspension is calibrated for the trail, not just the street.
All-Terrain Tires — Standard
AT4 models ship with all-terrain tires as standard equipment — not all-season passenger tires wrapped in an aggressive sidewall. Real all-terrain compound and tread pattern for traction in mud, gravel, sand, and wet pavement alike.
AWD/4WD & Selectable Terrain Modes
All-wheel or four-wheel drive is standard on every AT4 model. Pair that with multiple selectable terrain modes — including the AT4-exclusive off-road mode — and you have a system actively optimizing traction for the surface you're on.
AT4-Exclusive Exterior & Interior Styling
Dark exterior accents, unique AT4 badging, blacked-out trim elements, and AT4-stitched seating mark every model as distinctly off-road capable — and distinctly different from anything below it in the lineup. The look backs up the capability.
Three Tiers of AT4 Capability
Not all AT4 models are built the same. GMC offers three levels of off-road intensity — AT4, AT4X, and AT4 Ultimate — so you can match the truck to the terrain you actually drive.
Tier 1 — Foundation
AT4
Premium off-road ready out of the box
- Red front recovery hooks
- Front skid plate + underbody shield
- Off-road-tuned lifted suspension
- All-terrain tires standard
- AWD or 4WD standard
- Selectable terrain drive modes
- Hill Descent Control
- AT4 exterior & interior badging
Available on: Terrain · Acadia · Canyon · Sierra 1500 · Sierra HD · Sierra EV · Yukon
Tier 2 — Extreme Off-Road
AT4X
Factory-built for serious trail work
- Everything in AT4, plus:
- Factory suspension lift (up to 3 inches)
- Front & rear electronic locking differentials
- Multimatic DSSV spool-valve dampers
- More aggressive all-terrain tire sizing
- Upgraded underbody protection
- AT4X-exclusive badging & styling
- Enhanced rock-crawl capability
Available on: Canyon · Sierra 1500 · Sierra HD
Tier 3 — Luxury Off-Road
AT4 Ultimate
Off-road capability meets Denali luxury
- Everything in AT4, plus:
- Air Ride Adaptive Suspension standard
- Magnetic Ride Control
- Full-grain Obsidian Rush leather seats
- 16-way power seats with massage
- Bose 18-speaker premium audio
- Available Super Cruise hands-free driving
- Available Night Vision technology
Available on: Yukon / Yukon XL (from $97,900)
Seven Ways to Go AT4
From a compact SUV to a full-size electric truck, every AT4 model brings its own capability — and the same red hooks, skid plates, and all-terrain attitude.
Compact SUV
2026 GMC Terrain AT4
From $39,400 MSRP
175
HP
AWD
Drive
17"
AT Tires
6
Drive Modes
- Red front recovery hooks
- Off-road-tuned lifted suspension
- 17" dark machined wheels + all-terrain tires
- Front skid plate + steel underbody shield
- Hill Descent Control
- AT4-exclusive Terrain mode (6 total modes)
- AT4 badging interior & exterior
Mid-Size SUV — 3 Row
2026 GMC Acadia AT4
From $52,300 MSRP
328
HP
AWD
Standard
7
Seats
AT
Tires
- AWD standard (optional on lower trims)
- Red front recovery hooks
- Front skid plates + underbody protection
- Lifted off-road suspension
- All-terrain tires standard
- Selectable terrain drive modes
- AT4 exterior & interior styling
Mid-Size Pickup — AT4 & AT4X
2026 GMC Canyon AT4 / AT4X
AT4 From $45,700 · AT4X From $55,500
310
HP
430
lb-ft
4WD
Drive
7,700
Lbs Tow
- 2.7L TurboMax — 310 HP / 430 lb-ft
- Red front recovery hooks + skid plates
- All-terrain tires, AT4 suspension lift
- AT4X: 3-inch factory lift
- AT4X: Front & rear electronic locking diffs
- AT4X: Multimatic DSSV spool-valve dampers
- AT4X — most capable mid-size off-road truck available
Full-Size Pickup — AT4 & AT4X — Most Popular
2026 GMC Sierra 1500 AT4 / AT4X
AT4 From approx. $58,000 · AT4X Higher
420
Max HP
460
lb-ft
4WD
Drive
13,300
Lbs Tow
- Red recovery hooks + multi-layer skid plates
- Available 6.2L V8 — 420 HP / 460 lb-ft
- Off-road-tuned suspension + AT tires
- MultiPro Tailgate — 6 configurations
- ProGrade Trailering with up to 14 cameras
- AT4X: Multimatic DSSV dampers
- AT4X: Electronic locking front & rear differentials
Heavy-Duty Pickup — 2500 & 3500
2026 GMC Sierra HD AT4 / AT4X
Sierra 2500 AT4 From approx. $60,000
470
HP Diesel
975
lb-ft
36,000
Lbs Tow
4WD
Drive
- AT4 off-road package on HD platform
- Red recovery hooks + heavy-duty skid plates
- 6.6L Duramax Diesel available — 975 lb-ft
- Available 6.6L V8 Gas — 401 HP
- Allison 10-speed automatic
- Sierra 3500 HD: up to 36,000-lb towing
- AT4X available on 2500 & 3500
Full-Size SUV — AT4 & AT4 Ultimate
2026 GMC Yukon / Yukon XL AT4
AT4 From $76,600 · AT4 Ultimate From $97,900
420
HP
4WD
Drive
8,500
Lbs Tow
9
Passengers
- High approach-angle front fascia + skid plate
- Red recovery hooks + 20" AT tires
- Magnetic Ride Control standard
- 6.2L V8 standard on AT4 Ultimate
- AT4 Ultimate: Air Ride Adaptive Suspension
- AT4 Ultimate: Obsidian Rush full-grain leather
- AT4 Ultimate: Bose 18-speaker + Night Vision available
New for 2026 — Sierra EV AT4
All-New · Electric · Off-Road · 2026
2026 GMC Sierra EV AT4
The most capable EV truck GMC has ever built. The Sierra EV AT4 pairs electric performance — 725 HP and 775 lb-ft of instant torque — with factory off-road equipment that puts it in a class of its own. This is what happens when an electric powertrain meets an AT4 build sheet.
725
Horsepower
775
lb-ft Torque
478
Mi Est. Range
$79,300
Starting MSRP
4.4s
0–60 MPH
2"
Suspension Lift
CrabWalk — Diagonal Movement
4-Wheel Steer
35" All-Terrain Tires
2-Motor e4WD
Red Front Recovery Hooks
2-Inch Factory Suspension Lift
Illuminated Red GMC Badge
Selectable Off-Road Drive Modes
Max Range Battery: 478 Mi
Instant Electric Torque
CrabWalk allows the Sierra EV AT4 to move diagonally at low speeds by steering the rear wheels independently — a capability no gas-powered Sierra can match. Add 4-wheel steer for superior maneuverability on the trail and in tight spaces, and you have a truck that genuinely uses its electric architecture as an off-road advantage.
Ask About Sierra EV AT4 at Century Buick GMCAT4 Lineup at a Glance
Every AT4 shares the core off-road DNA. Here's how capability scales across all seven model families.
| Feature | Terrain | Acadia | Canyon | Sierra 1500 | Sierra HD | Sierra EV | Yukon |
|---|---|---|---|---|---|---|---|
| Red Recovery Hooks | |||||||
| Skid Plates | |||||||
| All-Terrain Tires | |||||||
| AWD/4WD Standard | |||||||
| Hill Descent Control | |||||||
| AT4X Available | — | — | — | — | |||
| Locking Differentials | — | — | AT4X | AT4X | AT4X | — | — |
| Multimatic DSSV Dampers | — | — | AT4X | AT4X | AT4X | — | — |
| CrabWalk / 4-Wheel Steer | — | — | — | — | — | — | |
| AT4 Ultimate Available | — | — | — | — | — | — | |
| Air Ride Suspension | — | — | — | — | — | — | Ultimate |
Why Buy Your AT4 from Century Buick GMC
You chose AT4 because you don't settle. Neither do we. Here's what makes Century Buick GMC the right place to buy your next off-road GMC in the Tampa Bay area.
Exclusive Lifetime Powertrain Warranty
Every new GMC AT4 purchased at Century Buick GMC comes with our exclusive Lifetime Powertrain Warranty. Engine, transmission, and drivetrain covered for life — at zero additional cost. No other GMC dealer in Tampa Bay offers this on an AT4.
In-Stock AT4 Inventory
We stock AT4 models across the full GMC lineup — from Terrain to Yukon to Sierra EV. No factory orders with months of waiting. Find your AT4, configure it the way you want, and take delivery on your schedule.
Straightforward Pricing
No bait-and-switch. No add-on packages that inflate the number after you've already fallen in love with the truck. Century Buick GMC prices competitively from day one so you know what you're paying before you walk in the door.
Vehicle Delivery Available
We deliver to your home or office throughout the Tampa Bay area — Brandon, Carrollwood, South Tampa, Westchase, St. Petersburg, and beyond. Your AT4 comes to you, ready for the trail.
Competitive Trade-In Program
Get a real offer on your current vehicle — fast, transparent, and applied directly to your AT4 purchase. Start your trade-in valuation at CenturyBuickGMC.com before you ever step foot on the lot.
Pre-Approval in Minutes
Get pre-approved for financing online before you visit. We work with multiple lenders to find the best rate for your situation — whether you're buying, leasing, or financing an AT4 or AT4X model.
Serving Off-Road Buyers Across Tampa Bay
GMC AT4 Tampa FL
Canyon AT4X Tampa
Sierra AT4 Tampa Bay
Terrain AT4 Tampa
Acadia AT4 Tampa
Yukon AT4 Tampa
Sierra EV AT4 Tampa
GMC AT4X Brandon FL
Off-Road Truck Carrollwood
GMC AT4 South Tampa
Off-Road SUV Westchase
AT4 Dealer St. Petersburg
AT4 Ultimate Tampa FL
GMC Off-Road Dealer Tampa
Exclusive Century Lifetime Powertrain Warranty
Every new 2026 GMC AT4, AT4X, and AT4 Ultimate purchased at Century Buick GMC is covered by our exclusive Lifetime Powertrain Warranty — engine, transmission, and drivetrain, for as long as you own the vehicle. You buy a truck built to go further. We back it for life. No other Tampa Bay GMC dealer can say that.
Lifetime Coverage
All AT4 Models
Engine & Drivetrain
Century Exclusive
AT4X Eligible
Frequently Asked Questions
What does AT4 mean on a GMC?
AT4 is GMC's premium off-road trim level, positioned above Elevation and below Denali in the lineup. Every AT4 includes red front recovery hooks, front skid plates, off-road-tuned suspension with a lifted ride height, all-terrain tires, and AWD or 4WD as standard equipment. AT4 is purpose-built for off-road capability while maintaining Professional Grade refinement on the street.
What is the difference between AT4 and AT4X?
AT4X takes the off-road capability of the standard AT4 considerably further. Where the AT4 has off-road-tuned suspension and all-terrain tires, the AT4X adds a factory suspension lift (up to 3 inches on the Canyon), front and rear electronic locking differentials, and Multimatic DSSV spool-valve dampers — the same technology used in professional racing. AT4X is available on the Canyon, Sierra 1500, and Sierra HD.
What is AT4 Ultimate on the Yukon?
AT4 Ultimate is the Yukon's pinnacle trim — a unique combination of AT4 off-road capability and Denali-level luxury available nowhere else in the GMC lineup. It adds Air Ride Adaptive Suspension, Magnetic Ride Control, Obsidian Rush full-grain leather seating with massage, a Bose 18-speaker audio system, available Night Vision technology, and available Super Cruise hands-free driver assistance. Starting at $97,900.
What makes the 2026 Sierra EV AT4 unique?
The Sierra EV AT4 is a first-of-its-kind electric off-road truck. Its 2-motor e4WD system enables CrabWalk — the ability to move diagonally at low speeds by steering the rear wheels independently. Add 35-inch factory all-terrain tires, a 2-inch suspension lift, 725 HP, 775 lb-ft of instant torque, and up to 478 miles of estimated range, and it's the most technically capable AT4 ever built. Starting at $79,300.
Which GMC AT4 is best for towing?
The Sierra HD AT4 leads the lineup with the Sierra 3500 HD capable of up to 36,000 lbs of fifth-wheel towing when equipped with the 6.6L Duramax Diesel and Allison 10-speed automatic. The Sierra 1500 AT4 tows up to 13,300 lbs. The Canyon AT4 handles up to 7,700 lbs. For towing a boat, trailer, or equipment across the Tampa Bay area, the Sierra HD AT4 is the undisputed choice.
Does Century Buick GMC's Lifetime Warranty apply to AT4 models?
Yes. Century Buick GMC's exclusive Lifetime Powertrain Warranty applies to every new GMC sold at our Tampa dealership — including all AT4, AT4X, and AT4 Ultimate models. Engine, transmission, and drivetrain are covered for as long as you own the vehicle. This warranty is not available at other GMC dealers in the Tampa Bay area and requires no additional purchase.
Your AT4 Is Ready. The Trail Is Waiting.
Seven AT4 models in stock at Century Buick GMC in Tampa. Lifetime Powertrain Warranty included. No runaround on price.
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The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.