Used 2025 GMCSierra 1500 Denali Ultimate
- Exterior Color
- White Frost
- Interior Color
- Alpine Umber Premium Full-Grain Leather
- Odometer
- 25,259 miles
- Fuel Economy
- 15/19 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- 6.2L EcoTec3 V8
- VIN
- 1GTUUHEL6SZ175231
- Stock Number
- B154A
Included Packages & Accessories
Detailed Specifications
- 1st and 2nd row curtain head airbags
- 4-wheel ABS Brakes
- ABS and Driveline Traction Control
- Adaptive cruise control
- Aluminum/genuine wood center console trim
- Aluminum/genuine wood dash trim
- Aluminum/genuine wood door trim
- Anti-theft alarm system
- Audio System Premium Brand Speakers: Bose
- Audio controls on steering wheel
- Auxiliary Engine Cooler : Yes
- Auxiliary Transmission Cooler : Yes
- Bluetooth wireless phone connectivity
- Braking Assist
- Bucket front seats
- Climate Controlled : Driver and passenger heated
- Compass
- Cruise controls on steering wheel
- Daytime running lights
- Driver seat memory
- Driver's side electrochromatic auto-dimming mirrors
- Dual illuminated vanity mirrors
- Dual reverse tilt mirrors
- Electrochromatic rearview mirror
- External temperature display
- Fold-up cushion rear seats
- Front Ventilated disc brakes
- Front and rear reading lights
- Front fog/driving lights
- Fuel Consumption: City: 15 mpg
- Fuel Consumption: Highway: 19 mpg
- Heated driver mirror
- Heated passenger mirror
- Integrated Navigation System : with voice activation
- Leather seat upholstery
- Leather steering wheel trim
- Machined aluminum rims w/ painted accents
- Memorized Settings for 2 drivers
- Memorized Settings including door mirror(s)
- Metal-look shift knob trim
- OnStar
- Passenger Airbag
- Power 1-Touch Glass Sunroof
- Power Running boards
- Power remote w/tilt down driver mirror adjustment
- Power remote w/tilt down passenger mirror adjustment
- Power retractable mirrors
- Power windows
- Premium GMC Infotainment System
- Privacy glass: Deep
- Radio Data System
- Rear seats center armrest
- Remote Engine Start : Keyfob remote start
- Remote power door locks
- Remote window operation
- Side airbag
- SiriusXM with 360L AM/FM/Satellite Radio
- SiriusXM with 360L Satellite Radio
- Speed Sensitive Audio Volume Control
- Split rear bench
- Stability controll with anti-roll
- Surround Audio
- Tachometer
- Tilt and telescopic steering wheel
- Total Number of Speakers: 12
- Trailer hitch
- Trip computer
- Video Monitor Location: Front
- Wheel Diameter: 22
- Wheel Width: 9
KBB.com Consumer Reviews
- 4.0
Depreciation of 50%
By Manny A on 10/28/2026 10:06:36 AM
This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again. - 5.0
2021 GMC SLT 4WD SIERRA, Great Truck
By Ransom1 on 10/15/2026 4:18:42 PM
This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime. - 5.0
Great 4 cylinder truck
By Steve on 9/23/2026 2:01:15 AM
I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.