2024 GMC Sierra 2500HD Denali Ultimate Crew Cab 4WD

The 2024 GMC Sierra 2500HD Denali Ultimate in Onyx Black with Alpine Umber interior delivers premium heavy-duty diesel power, first-class Crew Cab comfort, and 4WD capability for drivers who want serious truck strength without giving up luxury. Powered by a Duramax 6.6L V8 Turbodiesel engine and paired with a 10-speed automatic transmission, this Sierra 2500HD Denali Ultimate brings massive torque, confident towing performance, and smooth power delivery in a truck built to handle real work while still looking every bit the top-shelf pickup it is. With just 21,445 miles, this Denali Ultimate offers low-mileage appeal, upscale presence, and the kind of heavy-duty capability that does not need to shout to be taken seriously. Entertainment and Connectivity Features Large touchscreen infotainment display Apple CarPlay integration Android Auto integration Bluetooth hands-free connectivity Built-in navigation capability Premium audio system Wireless phone charging USB charging and media ports Steering wheel mounted audio and phone controls Voice recognition capability Added Features Denali Ultimate premium trim package Onyx Black exterior Alpine Umber interior 4WD capability Duramax 6.6L V8 Turbodiesel performance Crew Cab configuration Low 21,445 miles Premium leather-appointed seating Heated and ventilated front seats Power-adjustable front seats with memory settings Advanced trailering technology Strong towing and hauling appeal Safety Features Forward Collision Alert Automatic Emergency Braking capability Lane Departure Warning capability Following Distance Indicator HD Surround Vision capability Front and rear park assist Electronic Stability Control Anti-lock braking system Advanced airbag system Trailer sway control Standard Features LED headlamps and LED daytime running lights Premium alloy wheels Dual-zone automatic climate control Power windows and door locks Remote start capability Push-button start Spacious Crew Cab interior Rear seat air vents Power-folding side mirrors Premium interior trim and Denali Ultimate accents Mechanical Features Duramax 6.6L V8 Turbodiesel engine 10-speed automatic transmission Four-wheel drive Heavy-duty suspension system Four-wheel disc brakes Electric power steering Integrated towing capability Strong diesel torque for towing and hauling Built for heavy-duty work, travel, and demanding use Smooth long-haul diesel performance Why drivers choose Port Lavaca Auto Group for their next vehicle Trusted dealership serving Texas drivers with transparent, pressure-free buying experiences Large selection of quality SUVs, trucks, and cars ready for immediate delivery Knowledgeable product specialists who help match drivers with the right vehicle Flexible financing options for a wide range of buyers Ongoing customer support and service after the sale Strong reputation backed by consistent five-star Google reviews Customer Review Highlight We shopped around quite a bit before buying, and Port Lavaca Auto Group stood out right away. They were professional, easy to talk to, and made sure everything was clear from start to finish. Heather W., March 2026 From its low-mileage condition and proven Duramax diesel power to its Denali Ultimate luxury and 4WD capability, the 2024 GMC Sierra 2500HD is built for drivers who want heavy-duty truck capability, refined comfort, and the confidence to tow, haul, and travel without compromise.

Additional Information

Gooseneck/5th Wheel Prep Package,Preferred Equipment Group 5SB,Technology Package,X31 Off-Road Package,12 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium Series 12-Speaker System,Premium audio system: Premium GMC Infotainment System,Radio: AM/FM w/Premium GMC Infotainment System,SiriusXM w/360L,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Heads-Up Display,Memory seat,Power driver seat,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar and GMC connected services capable,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power moonroof,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Panic alarm,Security system,Unauthorized Entry Theft-Deterrent System,Speed control,2-Speed Active Transfer Case,220-Amp Alternator,Block heater,Dual Heavy-Duty 70 Amp Battery,Auto-dimming door mirrors,Bumpers: body-color,Front License Plate Kit,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Signature Denali Grille in Vadar Chrome,Spray-On Bedliner w/Denali Logo,Turn signal indicator mirrors,2 Charge-Only Rear USB Ports,2 Charge/Data USB Ports Inside Center Console,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera w/2 Trailer Camera Provisions,Buckle to Drive,Compass,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,Garage door transmitter,Genuine wood dashboard insert,Genuine wood door panel insert,GMC Connected Access Capable,HD Surround Vision,Heated steering wheel,Illuminated entry,Inside Rearview Auto-Dimming Rear Camera Mirror,Leather steering wheel,Multicolor 15" Diagonal Head-Up Display,OnStar & GMC Connected Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Alert,Rear Prem Floor Liners w/Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Cam Provisions & Trailer Viewing Software,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wireless Charging,Wireless Phone Projection,16-Way Power Driver Seat Adjuster w/Lumbar,16-Way Power Passenger Seat Adjuster w/Lumbar,Front Bucket Seats,Front Center Armrest,Full Grain Leather Seat Trim,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Power passenger seat,Rear Underseat Storage (LPO),Safety Alert Seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,Integrated Trailer Brake Controller,Trailer Tire Pressure Monitor Sensors,Alloy wheels,Wheels: 20" Ultra-Bright Machined Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Front Passenger Windows w/Express Up/Down,Power Sliding Rear Window w/Defogger,Rain sensing wipers,Variably intermittent wipers,3.42 Axle Ratio