[Home](/) / [New vehicles](/new-vehicles/) / [GMC](/new-vehicles/gmc/) / [Sierra 2500HD](/new-vehicles/gmc/sierra-2500hd/) New · Covert Buick GMC Bee Cave # 2026 GMC Sierra 2500HD AT4 VIN 1GT4UPEY6TF350036 · Stock TF350036 ![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 1 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fd4f0f212-a046-4851-9d0c-6a3912d91908.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 2 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F0379fc21-94a9-4b85-ac08-4e0358344707.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 3 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F1abfec63-99c5-4e77-8f1e-ee5903495ccf.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 4 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F7805c883-2473-473d-9669-c706f414540b.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 5 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F89567dc5-e8d8-4f2e-a409-dc15ad045c0d.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 6 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fa7dc3d10-2aac-4fb7-aabd-ad336b91da4a.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 7 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F3c1dff6b-091c-4f26-84e7-8995b4a37237.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 8 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F2d9f6b6b-dd17-4b74-9c5f-9fedaa5176ea.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 9 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F04a6b26d-c7d8-41a0-95a7-5766e7edda6a.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 10 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F6153ec81-ca09-4004-9e83-08f51ad954da.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 11 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F51ec622d-6385-4822-9d40-b6cd1ead3f25.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 12 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F9a7915d8-7e57-48d8-964d-f834ee360128.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 13 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F29d95be0-cf84-48b9-9de2-f3e1990b0d0c.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 14 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F0afe98e8-5e30-45bc-8060-ca372ce4f868.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 15 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F0762942e-8a4a-4627-8573-1fc6520fca66.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 16 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fe008c9b1-6673-444a-b7d1-3e305c224533.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 17 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fe6719cc3-4cbb-487f-b51f-dd5ff8449657.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 18 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Ff8785e08-0c16-4a6f-9e3a-38dad7894999.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 19 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Ff2b098dc-2a8e-44e7-9984-f129e22692a9.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 20 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F504be4d9-94d1-4ed1-a577-8547c24f6e1e.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 21 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fbb75cbb8-169c-48e7-8ca5-1d94db93ac9e.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 22 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F737293df-e8c9-421a-9b20-cd8a09fc1ce9.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 23 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fd8a60335-885d-4b34-a281-d73f76d7f280.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 24 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F5068da01-2eb7-4896-a9b0-154331b49e90.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 25 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F2102d263-c5f5-4499-a39d-ed02152b282e.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 26 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fa363098b-544f-4622-91c3-b7ce673db2c2.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 27 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F8ff2ea50-9b23-4377-a3f0-b733b4382aaf.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Sterling Metallic, photo 28 of 28](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F0240562e-9bbb-420a-a5f3-58df8c4495c2.png&w=3840&q=80) 28 photos MSRP$90,799 Dealer discount−$6,795 **Manufacturer offers**Through Nov 30 GMC Bonus Cash−$2,000 Buick & GMC Consumer Cash−$2,500 Price$79,504 Price excludes tax, title, license and the $225 documentary fee. The offers as the manufacturer names them * GMC Bonus Cash−$2,000 * Buick & GMC Consumer Cash Program−$2,500 [Check availability](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey6tf350036/?form=availability)[Schedule a test drive](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey6tf350036/?form=test-drive)[Ask a question](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey6tf350036/?form=question) [Calculate your payment](https://app.autoapr.com/reveal/4d0nhx37/1GT4UPEY6TF350036) ## Calculate your payment Close [Trading in your car for this GMC Sierra 2500HD?Get an offer for it and put it toward this one.](/value-your-trade/) Covert Buick GMC Bee Cave[(512) 954-9290](tel:+15129549290) 16501 Sweetwater Village Dr Bldg 1, Austin, TX 78738 Sales: Monday to Saturday, 9 AM to 7 PM; closed Sunday ### Details Engine 6.6L V8 diesel Transmission 10-speed automatic Drivetrain 4WD Engine Duramax 6.6L V8 Turbodiesel Body 4D Crew Cab Exterior Sterling Metallic Interior Jet Black With Kalahari Accents Fuel Diesel ### Equipment 139 #### Packages * AT4 Preferred Package * AT4 Premium Plus Package * Gooseneck/5th Wheel Prep Package * Preferred Equipment Group 4SB 2 more * Technology Package * X31 Off-Road Package #### Safety * Emergency communication system: OnStar * Lane Departure Warning System * Security system * Unauthorized Entry Theft-Deterrent System 21 more * Automatic Emergency Braking * Buckle to Drive * Following Distance Indicator * Forward Collision Alert * Front Pedestrian Braking * HD Surround Vision * Inside Rearview Auo-Dimming Rear Camera Mirror * Rear Cross Traffic Alert * Ultrasonic Front and Rear Park Assist * Safety Alert Seat * Traction control * 4-Wheel Disc Brakes * ABS brakes * Dual front impact airbags * Dual front side impact airbags * Low tire pressure warning * Occupant sensing airbag * Overhead airbag * Brake assist * Electronic Stability Control * Panic alarm #### Technology * 7 Speakers * AM/FM radio: SiriusXM with 360L * Bose Premium 7-Speaker Sound System * Premium audio system: Premium GMC Infotainment System 14 more * Radio: AM/FM Stereo with Premium GMC Infotainment System * SiriusXM with 360L Trial Subscription * Steering Wheel Audio Controls * 120-Volt Bed Mounted Power Outlet * 120-Volt Instrument Panel Power Outlet * 2 Charge-Only Rear USB Ports * 2 Charge/Data USB Ports Inside Center Console * 2 USB Ports * Apple CarPlay/Android Auto * Multicolor 15" Diagonal Head-Up Display * OnStar Services Capable * Wireless Charging * Wireless Phone Projection * Steering wheel mounted audio controls #### Interior * Automatic temperature control * Electric Rear-Window Defogger * Front dual zone A/C * Rear window defroster 50 more * Driver Memory * Memory seat * Power driver seat * Push Button Start * Remote Vehicle Starter System * Universal Home Remote * Manual Tilt-Wheel/Telescoping Steering Column * Keyless Open and Start * Power Sunroof * LED Cargo Area Lighting * Auto-dimming Rear-View mirror * Floor-Mounted Center Console * Front Premium Floor Liners with Removable Carpet Insert * Heated steering wheel * Rear Premium Floor Liners with Removable Carpet Insert * Rear reading lights * Rear seat center armrest * Voltmeter * 10-Way Power Driver Seat Adjuster with Lumbar * 10-Way Power Passenger Seat Adjuster with Lumbar * Front Center Armrest * Heated 2nd Row Outboard Seats * Heated Driver and Front Outboard Passenger Seats * Heated front seats * Heated rear seats * Perforated Leather-Appointed Front Seat Trim * Power passenger seat * Ventilated Driver and Front Passenger Seats * Ventilated front seats * Power Front Passenger Windows with Express Up/Down * Power Sliding Rear Window with Defogger * Air Conditioning * Power windows * Remote keyless entry * Speed control * Compass * Driver door bin * Driver vanity mirror * Front reading lights * Illuminated entry * Outside temperature display * Overhead console * Passenger vanity mirror * Tachometer * Telescoping steering wheel * Tilt steering wheel * Trip computer * Front Bucket Seats * Split folding rear seat * Passenger door bin #### Exterior * Pickup Box * Auto High-beam Headlights * Front fog lights * Auto-dimming door mirrors 18 more * Bumpers: body-color * Gloss Black Header Grille and Grille Insert Bars * IntelliBeam Automatic High Beam on/Off * LED Smoked Amber Roof Marker Lamps * Rear step bumper * Rear Wheelhouse Liners * Spray-on Pickup Bedliner with GMC Logo * Turn signal indicator mirrors * Wheels: 20" High Gloss Black 8 Spokes Aluminum * Deep-Tinted Glass * Front Rain-Sensing Wipers * Rain sensing wipers * Delay-off headlights * Fully automatic headlights * Heated door mirrors * Power door mirrors * Alloy wheels * Variably intermittent wipers #### Mechanical * Off-Road Suspension * Speed-sensing steering * Front wheel independent suspension * Hill Descent Control 10 more * 2-Speed Active Transfer Case * Heavy-Duty 80 Amp Battery * Bed View Camera with Two Trailer Camera Provisions * Trailer Cam Provisions and Trailer Viewing Software * Trailer Side Blind Zone Alert * Hitch Guidance with Hitch View * in-Vehicle Trailering System App * 3.73 Rear Axle Ratio * Power steering * Front anti-roll bar ### From the store Call us at 512-954-9290 \- Duramax 6.6L V8 Turbodiesel with 470 hp and 975 lb-ft of torque \- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case \- AT4 Preferred Package and AT4 Premium Plus Package \- Gooseneck/5th Wheel Prep Package for serious towing capability \- X31 Off-Road Package with off-road suspension and hill descent control \- Technology Package with advanced camera systems and connectivity \- Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription \- Wireless phone projection and Apple CarPlay/Android Auto compatibility \- Multicolor 15" diagonal head-up display \- Heated and ventilated front seats with 10-way power adjustment \- Power sunroof with deep-tinted glass \- Bed View Camera with trailer camera provisions and viewing software \- HD Surround Vision with rear cross traffic alert and ultrasonic park assist \- Spray-on pickup bedliner with GMC logo \- 20" high gloss black aluminum wheels This 2026 GMC Sierra 2500HD AT4 is built for those who demand capability and refinement in equal measure. The legendary Duramax 6.6L turbodiesel engine delivers the power and torque needed for serious work, while the sophisticated ten-speed automatic transmission ensures smooth efficiency whether you're on the highway or tackling challenging terrain. With 4WD and the 2-Speed Active Transfer Case, you have the control to handle virtually any condition. The AT4 packages transform this truck into a premium work and adventure vehicle. Off-road suspension, hill descent control, and the X31 Off-Road Package prepare you for unpaved terrain and steep grades. The gooseneck/fifth-wheel prep package and in-vehicle trailering system provide the infrastructure for professional-grade towing operations. Technology seamlessly integrates into every aspect of your driving experience. The fifteen-inch head-up display keeps critical information in your line of sight. Multiple camera systems including bed view, trailer cam provisions, and HD surround vision eliminate blind spots and make maneuvering intuitive. Wireless charging, wireless phone projection, and SiriusXM with a 360L trial subscription keep you connected and entertained. Comfort extends throughout the cab with heated and ventilated front seats, heated second-row outboard seats, and a power sunroof. The premium leather-appointed seating and premium Bose sound system create an inviting environment for long drives. Dual-zone climate control and memory seat functions ensure personalized comfort for each occupant. Safety systems work continuously to protect you and your passengers. Automatic emergency braking, forward collision alert, lane departure warning, and rear cross traffic alert provide multiple layers of awareness. The safety alert seat and OnStar services add additional security and peace of mind. This truck is finished in silver, displaying the clean lines and commanding stance that define the Sierra 2500HD. The twenty-inch high gloss black wheels complement the bold exterior, while the spray-on bedliner with GMC logo demonstrates attention to detail and durability. Every element has been thoughtfully designed for those who refuse to compromise. Call us at 512-954-9290 Price includes: $2000 - GMC Bonus Cash. Exp. 11/30/2026 $2500 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026 ## Check availability Close 2026 GMC Sierra 2500HD AT4Stock TF350036 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Leave this field empty Check availability By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Schedule a test drive Close 2026 GMC Sierra 2500HD AT4Stock TF350036 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Preferred day (optional) Time of day (optional)Any timeMorningAfternoonEvening Leave this field empty Schedule a test drive By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Ask a question Close 2026 GMC Sierra 2500HD AT4Stock TF350036 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Your question Leave this field empty Ask a question By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Similar vehicles in stock [All new vehicles →](/new-vehicles/) [![2026 GMC Sierra 2500HD AT4 in Summit White](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F209a002a-5f40-4c7b-8228-ebd3f28eae02.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD AT4Summit White · 4WDMSRP $90,899Total savings $11,305Price$79,594Stock TF349739 · VIN 1GT4UPEY2TF349739](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey2tf349739/)[![2026 GMC Sierra 2500HD Denali Ultimate in Sterling Metallic](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F41bd4003-9087-4065-a12c-d032219327c5.png&w=3840&q=80)Used · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD Denali Ultimate41,958 mi · Sterling Metallic · 4WDPrice$79,604Stock F351128A · VIN 1GT4UXEY5TF103865](/inventory/used-2026-gmc-sierra-2500hd-denali-ultimate-4wd-4d-crew-cab-1gt4uxey5tf103865/)[![2026 GMC Sierra 2500HD Denali in Sterling Metallic](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F4e93e42b-f769-4ef0-b391-19d5cbe0f1e2.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD DenaliSterling Metallic · 4WDMSRP $91,275Total savings $11,064Price$80,211Stock TF371948 · VIN 1GT4UREY6TF371948](/inventory/new-2026-gmc-sierra-2500hd-denali-4wd-4d-crew-cab-1gt4urey6tf371948/)[![2027 Ram 2500 Laramie in Bright White Clearcoat](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F9e19933d-55c0-4525-8ad3-8d33df3510e0.png&w=3840&q=80)New · Covert CDJR Bee Cave2027 Ram 2500 LaramieBright White Clearcoat · 4WDMSRP $92,800Total savings $13,296Price$79,504Stock VG409818 · VIN 3C63R5FL7VG409818](/inventory/new-2027-ram-2500-laramie-4wd-4d-crew-cab-3c63r5fl7vg409818/)[![2027 Ram 3500 Laramie in Diamond Black](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F647bfb60-77de-40c5-b011-ae15fca7ea47.png&w=3840&q=80)New · Covert CDJR Bee Cave2027 Ram 3500 LaramieDiamond Black · 4WDMSRP $92,510Total savings $13,161Price$79,349Stock VG411330 · VIN 3C63RRJL0VG411330](/inventory/new-2027-ram-3500-laramie-4wd-4d-crew-cab-3c63rrjl0vg411330/)[![2026 GMC Sierra 3500HD SLE in Onyx Black](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F680bb92d-932f-4606-afe5-17f628ebc9e1.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 3500HD SLEOnyx Black · 4WDPrice$78,072Stock TF188365 · VIN 1GD5UTEY2TF188365](/inventory/new-2026-gmc-sierra-3500hd-sle-4wd-double-cab-1gd5utey2tf188365/)