New 2025 GMC Sierra HD for Sale in Pasadena | Thorson Motors
2025 GMC Sierra Heavy Duty Available Trims
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KEY FEATURES
CAPABILITY
Serious power. Serious trailering.
DURAMAX 6.6L TURBO-DIESEL V8 ENGINE
Sierra Heavy Duty’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and Allison 10-speed automatic transmission.
SERIOUS TOWING POWER
The 2500 Crew Cab offers available max towing of up to 21,870 lbs.
ADVANCED TRAILERING TECH
The 2025 Sierra Heavy Duty offers more trailering-assistance technologies than any competitor in its class, so you can trailer with confidence.
DURAMAX 6.6L TURBO-DIESEL V8 WITH ALLISON 10-SPEED AUTOMATIC TRANSMISSION
- 975 lb.-ft. of torque and 470 horsepower
- A broad band of power and torque over the entire operating speed range
- Exhaust brake to improve control when towing
- Potent turbo vane actuator and tough valve springs
STANDARD ON DENALI ULTIMATE
AVAILABLE ON PRO | SLE | SLT | AT4 | DENALI | AT4X
ADVANCED TRAILERING TECH
ProGrade Trailering Tech
- This advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of confidence and visibility
Up to 14 available camera views
- More views help to provide a more confident trailering experience, such as transparent trailer view, which is compatible with most traditional, gooseneck and fifth-wheel trailers
Adaptive Cruise Control with Trailering
- This available feature allows the truck’s Adaptive Cruise Control to account for additional drag and increased braking distances when towing a trailer
INTERIOR
Premium interiors to make every trip first-class.
16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE
Experience serious comfort in Sierra Heavy Duty’s available best-in-class 16-way power front seats with massaging feature.
LUXURIOUS MATERIALS
Sierra HD Denali Ultimate’s Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of Mt. Denali’s summit.
SPACIOUS CABIN
The Sierra Heavy Duty truck features best-in-class Crew Cab front head and leg room.
TECHNOLOGY
Keep informed and in command.
13.4" DIAGONAL CENTER TOUCHSCREEN
This available tablet-style touchscreen — the largest in its class — is the customizable, high-tech centerpiece of the cabin.
15" DIAGONAL MULTICOLOR HEAD-UP DISPLAY
The available 15" diagonal Head-Up Display helps keep important information like speed and alerts in clear view.
12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER
Control and customize important vehicle, driving, and infotainment content in high-resolution clarity with an available 12.3" diagonal digital Driver Information Center.
MULTICOLOR 15" DIAGONAL HEAD-UP DISPLAY
The available multicolor 15" diagonal Head-Up Display can project the following key information directly onto your windshield:
- Speed
- Safety Alerts
- Audio
- Low-Fuel Warning
- Phone
- Off-Road Inclinometer
STANDARD ON AT4X | DENALI ULTIMATE
AVAILABLE ON AT4 | DENALI
EXTERIOR
Powerfully bold. Stands out proud.
BOLD FRONT END
Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper, and fascia.
LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING
LED projector headlamps with striking animated sequences help enhance Sierra Heavy Duty’s impressive exterior design.
SIX-FUNCTION MULTIPRO TAILGATE
The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job in your work truck.
MULTIPRO TAILGATE
The world’s first six-function GMC MultiPro Tailgate helps improve loading, unloading, and accessing the cargo box.
- Open the primary gate using the key fob’s power release
- Load stop to help prevent items from sliding out of the bed
- Fold-down inner gate for easy access when loading and unloading
- Inner gate can fold into a full-width step, capable of holding up to 375 lbs.
- Inner gate load stop to help prevent second-tier items from sliding out of the bed
- Inner gate can be disabled to prevent it from being opened when a hitch or other equipment is installed
- The opened inner gate provides a work surface as well as second-tier loading
- Take music outdoors with the available integrated MultiPro Tailgate Audio System by KICKER
STANDARD ON SLT | AT4 | DENALI | AT4X | DENALI ULTIMATE
AVAILABLE ON PRO | SLE
Closed Position
Primary Gate Position
Primary Load Stop Position
Easy Access Position
Full-Width Step
Work Surface Position
SAFETY
SIERRA HD PRO SAFETY
Every GMC Sierra 2500 HD and GMC Sierra 3500 HD trucks include active safety and driver assistance technologies that help while driving and trailering. Sierra HD Pro Safety includes:
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam
- Lane Departure Warning
- Buckle to Drive
- Automatic Emergency Braking
New 2025 GMC Sierra Heavy Duty - Gallery
Disclaimer
Product information may feature optional equipment and accessories. Please see Thorson Motor Center for specific product availability.
* MSRP excludes destination handling fees, tax, title, license and registration. Images may include optional equipment and accessories at extra cost.
** EPA-estimated mpg ratings. Your mileage may vary for many reasons, including your vehicle’s condition and how/where you drive.