2018 GMC Sierra 1500 Denali

6.2L V8 | Denali Ultimate Package | Sunroof

$36,990

75,348 Miles
3GTU2PEJ0JG129858
Stock #: 7738
Show Me the CARFAX Badge
  Drivetrain   4WD
  Transmission   8-speed automatic
  Engine   8cyl - 6.2L
  Fuel Type   Gas
  MPG City   15
  MPG Highway   20
  Interior   Cocoa/Dark Sand
  Exterior   White Frost Tricoat

2018 GMC Sierra 1500 Denali 4WD Crew Cab – 6.2L V8 | Denali Ultimate Package | Sunroof
(VDP: 3GTU2PEJ0JG129858 75,348 miles)

Overview
This 2018 GMC Sierra 1500 Denali Crew Cab 4x4 is a truly loaded, top-of-the-line half-ton that combines luxury, capability, and true Colorado utility. Powered by the potent 6.2L EcoTec3 V8 delivering 420 horsepower and 460 lb-ft of torque, and equipped with the coveted Denali Ultimate Package, this truck offers everything a Denver driver could want — 22-inch premium wheels, MagneRide Magnetic Ride Control, power sunroof, tri-mode power steps, and integrated trailer brake controller. Finished in stunning White Frost Tricoat over a Cocoa/Dark Sand leather interior, it's ready to tackle I-70 mountain runs, tow your toys up to the high country, or cruise Cherry Creek in style. With a clean CARFAX, two owners, 19 service records, and just 75,348 well-maintained miles, this Denali stands out in the Denver used truck market as a rare find.

Vehicle Walkaround Video

Vehicle Details
• VIN: 3GTU2PEJ0JG129858
• Engine: 6.2L EcoTec3 V8 (420 hp / 460 lb-ft)
• Transmission: Automatic
• Drivetrain: 4WD with 2-speed Autotrac Transfer Case
• Exterior Color: White Frost Tricoat
• Interior Color: Cocoa/Dark Sand
• Odometer: 75,348 miles
• Denali Ultimate Package
• 22-inch Aluminum Wheels with Premium Paint and Chrome Inserts
• P285/45R22 SL 110H All-Terrain Blackwall Tires
• Power Sunroof
• Tri-Mode Power Steps (rearward articulating, foot-activated)
• MagneRide Magnetic Ride Control Suspension
• Active Noise Cancellation
• Integrated Trailer Brake Controller
• Chrome Recovery Hooks
• Heavy-Duty Locking Rear Differential
• 3.23 Rear Axle Ratio
• GVWR 7,200 lbs.
• Bose Premium Sound System with Subwoofer
• Wireless Phone Charging (Qi/PMA)
• Dual-Zone Automatic Climate Control
• Heated Power-Adjustable, Power-Folding, Auto-Dimming Mirrors
• Remote Vehicle Starter System
• Universal Home Remote
• 8-inch Customizable Multi-Color Driver Display
• Power-Adjustable Pedals
• Tilt and Telescoping Steering Column
• 110-Volt AC Power Outlet
• Front and Rear Park Assist (Ultrasonic)
• Rear Vision Camera with Dynamic Guide Lines
• Safety Alert Seat
• Teen Driver Mode
• StabiliTrak with Proactive Roll Avoidance and Trailer Sway Control
• Hill Start Assist and Hill Descent Control
• High-Performance LED Headlamps with GMC Signature Lighting
• LED Fog Lamps and LED Signature Taillamps
• Denali Chrome Grille
• Chrome Body-Side Moldings, Door Handles, and Mirror Caps
• EZ-Lift and Lower Tailgate with Remote Locking
• Spray-On Bed Liner with Embossed Denali Logo
• LED Cargo Box Lighting
• CornerStep Rear Bumper
• Deep-Tinted Glass
• All-Weather Floor Liners
• Wheel Locks (Set of 4)
• Rear 60/40 Folding Bench Seat
• Auto-Dimming Inside Rearview Mirror
• Illuminated Vanity Mirrors
• Frame-Mounted Underbody Shields (4WD)
• Heavy-Duty 720 CCA Battery
• 150-Amp Alternator
• External Engine Oil Cooler and Auxiliary Transmission Cooler
• 4-Wheel Disc Brakes with DURALIFE Rotors and ABS
• Capless Fuel Fill
• OnStar with GMC Connected Access
• Clean CARFAX – No Accidents Reported
• GMC Certified Pre-Owned History
• 19 Service Records

Mike's Notes
I personally inspected this Sierra Denali when it hit our Denver lot, and let me tell you — this is the trim to have if you want a luxury half-ton that still works like a truck. What jumped out at me first was the 6.2L V8; it makes this truck move in a way the standard 5.3 just doesn't, which matters when you're climbing Loveland Pass or passing slower traffic on I-70. The White Frost Tricoat paint still has serious depth to it, the 22-inch Denali wheels are clean, and the Cocoa/Dark Sand leather interior shows very light wear for a truck with 75K miles. I love that the CARFAX shows 19 service records with regular oil changes, a full brake job in 2022, transmission fluid flush, and a fresh alignment and coolant service in 2025 — this truck has been babied. Zero accidents, GMC Certified history, and with the Denali Ultimate Package (sunroof, power steps, trailer brake controller, MagneRide suspension) you're getting nearly $8K in options that make daily driving genuinely nicer. If you've been shopping loaded Denalis in Denver, come drive this one before it's gone.

Features and Benefits
• 6.2L EcoTec3 V8 (420 hp / 460 lb-ft) – Effortless power for towing trailers up to the mountains and confident passing at Colorado's high altitudes where lesser engines lose steam.
• 4WD with 2-Speed Autotrac Transfer Case – Handles Denver snowstorms, unplowed trailheads, and ski trips to A-Basin with rotary-dial simplicity.
• MagneRide Magnetic Ride Control – Adaptive shocks read the road 1,000 times per second, smoothing out rough Front Range pavement while keeping the truck planted when loaded.
• Denali Ultimate Package – A near-$8,000 factory upgrade bundle including the sunroof, 22-inch wheels, power steps, and trailer brake controller — all standard on this truck.
• Integrated Trailer Brake Controller – Safely tow your camper, boat, or side-by-side to the high country with smooth, dialed-in braking response.
• Heated Power-Folding Mirrors & LED Lighting – Clear visibility on dark, snowy Colorado mornings — mirrors defrost quickly and premium LEDs light up mountain backroads.
• Tri-Mode Power Retractable Running Boards – Easy step-in for passengers, then they tuck away for better ground clearance and aerodynamics on the highway.
• Bose Premium Audio with Subwoofer – Concert-quality sound for long road trips to Moab, Telluride, or across the plains.
• Spray-On Bed Liner with Denali Logo – Permanent, water-tight protection for hauling firewood, mountain bikes, or job-site gear without worrying about scratches.
• Clean CARFAX with 19 Service Records – Documented maintenance history and no reported accidents give you confidence in the long-term value of this truck.
• Front & Rear Park Assist with Rear Camera – Makes parking this big Crew Cab in tight LoDo parking garages and downtown lots much less stressful.
• Remote Start & Heated Leather – Warm up the cabin and seats from your kitchen on those single-digit January mornings in Denver.

Fully serviced, professionally detailed, and road-ready — this vehicle represents Mile High Car Helper's commitment to quality, value, and transparency.

Dealer Details
Visit our indoor Denver showroom to experience this vehicle in person.

Mile High Car Helper
1709 S Acoma St, Denver, CO 80223
Call/Text: 720-605-1749
www.milehighcarhelper.com

Hours: Mon–Fri 10 AM–6 PM | Sat 10 AM–5 PM | Closed Sunday

We offer local credit union financing, nationwide shipping, and full in-house services including detailing, paintless dent repair, window tint, and clear mask.

Equipment 

Comfort
Seating capacity: 5
Split front seats: Bucket front seats
Rear head restraints: Height adjustable rear seat head restraints
Rear head restraint control: Manual rear seat head restraint control
Rear head restraint control: 2 rear seat head restraints
Front seatback upholstery: Plastic front seatback upholstery
Door trim insert: Vinyl door trim insert
Headliner material: Cloth headliner material
Headliner coverage: Full headliner coverage
Panel insert: Aluminum instrument panel insert
Gearshifter material: Urethane gear shifter material
Door panel insert: Aluminum and simulated wood door panel insert
Console insert material: Aluminum and simulated wood console insert
Interior accents: Chrome interior accents
Rear seat upholstery: Vinyl rear seat upholstery
Rear seatback upholstery: Carpet rear seatback upholstery
Heated steering wheel: Heated steering wheel
Front seat type: Bench front seat
Armrests rear: Rear seat center armrest
Armrests front storage: Front seat armrest storage
Cabback insulator: Cabback insulator
Convenience
Capless fuel filler: Capless fuel filler
Passenger doors rear left: Conventional left rear passenger door
Rear cargo door: Tailgate
Passenger doors rear right: Conventional right rear passenger door
Memory settings: Memory settings include: door mirrors
Overhead console: Mini overhead console
Overhead console storage: Overhead console storage
Glove box: Locking glove box
Number of beverage holders: 10 beverage holders
Seatback storage pockets: 2 seatback storage pockets
Door bins front: Driver and passenger door bins
Cruise control: Cruise control with steering wheel mounted controls
Driver foot rest: Driver foot rest
Accessory power: Retained accessory power
12V power outlets: 2 12V power outlets
Tire pressure: Tire pressure fill assist
Door locks: Power door locks with 2 stage unlocking
Auto door locks: Auto-locking doors
Keyfob remote start: Keyfob remote start
Tachometer: Tachometer
Oil pressure gauge: Oil pressure gauge
Engine/electric motor temperature gauge: Engine/electric motor temperature gauge
Voltmeter: Voltmeter
Engine hour meter: Engine hour meter
Clock: Digital clock
Compass: Compass
Temperature display: Exterior temperature display
Speedometer: Redundant digital speedometer
Engine temperature warning: Engine temperature warning
Battery charge warning: Battery charge warning
Low level warnings: Low level warning for oil, coolant, fuel, washer fluid and brake fluid
Key in vehicle warning: Key in vehicle warning
Door ajar warning: Door ajar warning
Turn signal warning: Turn signal on warning
Oil pressure warning: Oil pressure warning
Transmission fluid temperature warning: Transmission fluid temp warning
Trip computer: Trip computer
Wipers: Variable intermittent front windshield wipers
Beverage holders rear: Rear beverage holders
Driver information center: Driver information center
Day/Night rearview mirror: Day/Night rearview mirror
Front reading lights: Front reading lights
Rear reading lights: Rear reading lights
Variable panel light: Variable instrument panel light
Headlights on reminder: Headlights on reminder
Trip odometer: Trip odometer
Ignition type: Mechanical
Original Warranty
Basic warranty: 36 month/36,000 miles
Powertrain warranty: 60 month/60,000 miles
Corrosion perforation warranty: 72 month/100,000 miles
Roadside warranty: 60 month/60,000 miles
Maintenance warranty: 24 month/24,000 miles
Safety and Security
Electronic stability control: Electronic stability control system with anti-roll
Brake type: 4-wheel disc brakes
ABS Brakes: 4-wheel antilock (ABS) brakes
Brake assist system: Brake assist system
Hill control: Hill descent control
Headlight type: Projector beam headlights
Headlights: LED low and high beam headlights
Auto headlights: Auto on/off headlight control
Running lights: LED daytime running lights
Delay off headlights: Delay-off headlights
High mount stop light: High mounted center stop light
Perimeter approach lighting: Remote activated perimeter approach lighting
LED brake lights: LED brake lights
Front impact airbag driver: Driver front impact airbag
Front side impact airbag driver: Seat mounted side impact driver airbag
Overhead airbags: Curtain first and second-row overhead airbags
Front impact airbag passenger: Passenger front impact airbag
Front side impact airbag passenger: Seat mounted side impact front passenger airbag
Occupancy sensor: Airbag occupancy sensor
Number of airbags: 6 airbags
3-point seatbelt: Rear seat center 3-point seatbelt
Height adjustable seatbelts: Front height adjustable seatbelts
Seatbelt pretensioners: Front seatbelt pretensioners
Illuminated entry: Illuminated entry
Instrumentation display: Analog instrumentation display
Low tire pressure warning: Tire specific low air pressure warning
Immobilizer: Immobilizer
Restricted driving mode/alerts: Restricted driving mode/alerts
Hill start assist: Hill start assist
Seatbelt pretensioners number: 2 seatbelt pre-tensioners
Child door locks: Manual rear child safety door locks
Rear camera: Rear mounted camera
Interior courtesy lights: Fade interior courtesy lights
Remote panic alarm: Remote panic alarm
Cab mounted cargo light: Cab mounted cargo light
In-car Entertainment
RDS: Radio data system (RDS)
Antenna: Fixed audio antenna
Number of first-row screens: 2 total number of 1st row displays
Speakers number: 7 speakers
Exterior and Appearance
Skid plate: 2 underbody skid plates
Body panels: Galvanized steel/aluminum body panels with side impact beams
Shutters: Active grille shutters
Number of doors: 4 doors
Bed liner: Spray-in pickup bed liner
Box style: Standard style pickup box
Bed-rail protectors: Pickup bed-rail protectors
Fenders: Black fender flares
Grille style: Chrome grille
Window Trim: Chrome side window trim
Special paint: Monotone paint
Rear bumper step: Rear bumper step
Bumper insert: Chrome front bumper insert
In-box lighting: LED in-box lighting
Powertrain and Mechanical
Alternator Type: Alternator
Battery type: Heavy-duty lead acid battery
Battery run down protection: Battery run down protection
Engine cooler: Engine oil cooler
Radiator: Heavy-duty radiator
Powertrain type: ICE
Transmission oil cooler: Transmission oil cooler
Drive type: Four-wheel drive
Traction control: All-speed ABS and driveline traction control
Suspension auto correcting: Adaptive ride suspension
Suspension ride type front: Independent front suspension
Suspension type front: Short and long arm front suspension
Front anti-roll: Front anti-roll bar
Springs front: Front coil springs
Suspension ride type rear: Rigid axle rear suspension
Springs rear: Rear leaf springs
Rear Springs: Regular grade rear springs
Speed sensitive steering: Speed sensitive power steering
Steering: Electric power-assist steering system
Steering type: Rack-pinion steering
Ventilated brakes: Front and rear ventilated disc brakes
ABS Brakes: Four channel ABS brakes
Suspension type rear: Leaf spring rear suspension
Rear locking differential: Automatic rear locking differential
Sequential shift control: Sequential shift control
Locking hub control: Auto locking hub control