New and used 2026 GMC Sierra 1500 SLT trucks for sale in Gilcrest, CO
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$58,489
MSRP $67,890
Est. $1,066/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Red
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11468
- VIN
- 1GTUUDED9TZ316246
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$58,294
MSRP $65,945
Est. $1,062/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 266184
- VIN
- 3GTUUDE8XTG341501
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- G260751
- VIN
- 3GTUUDE89TG432260
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Folding Mirrors
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Transwest GMC DenverReviews
Transwest GMC Denver review
Everyone was professional and no pressure sales. A number very no nonsense dealership. I would go back to purchase again and would recommend to friends to go to Trans West GMC.
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$58,489
MSRP $67,890
Est. $1,066/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Red
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11468
- VIN
- 1GTUUDED9TZ316246
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$63,917
MSRP $69,730
Est. $1,165/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Red
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- GM11932
- VIN
- 1GTUUDE86TZ286318
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- G260791
- VIN
- 3GTUUDE88TG434680
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Power Folding Mirrors
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Satellite Radio
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Transwest GMC DenverReviews
Transwest GMC Denver review
Rafael H was very attentive to what we were looking for in a clean used diesel p up . His assistance in our purchase with our purchase was very good . professional, not pushy Gerald & Kay Schreiber
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$58,294
MSRP $65,945
Est. $1,062/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 266184
- VIN
- 3GTUUDE8XTG341501
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$57,594
MSRP $67,245
Est. $1,050/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- 266455
- VIN
- 3GTUUDED2TG329582
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMCReviews
2026 GMC Sierra 1500 review
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
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$64,959
MSRP $70,610
Est. $1,184/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 direct injection, DOHC, variable valve control, i
- Stock #
- TG473937STK
- VIN
- 3GTUUDE85TG473937
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMCReviews
2026 GMC Sierra 1500 review
A little expensive, but comfortable, quiet, smooth ride. Great performance out of the 6.2L and better than expected fuel economy in the low 20s. Outstanding interior and good looking exterior, especially in the Downpour Metallic color. I don’t have 700 miles on it yet and have owned it for 3 weeks. Therefore, I can’t pass judgement yet on the reliability, but so far I am very satisfied. This replaced an 8 year old Ford F150 that served me quite well with only a couple of issues in the 100,000 plus miles.
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$57,594
MSRP $67,245
Est. $1,050/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- 266454
- VIN
- 3GTUUDED7TG329366
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$61,974
MSRP $68,625
Est. $1,129/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Premium gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 direct injection, variable valve control, premi
- Stock #
- TZ515532STK
- VIN
- 1GTUUDEL9TZ515532
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$63,742
MSRP $69,530
Est. $1,162/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Gray
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- 3.0L Duramax<sup>®</sup> Turbo Diesel engine
- Stock #
- GM12029
- VIN
- 1GTUUDE86TZ345559
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -
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$63,844
MSRP $67,245
Est. $1,164/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Regular gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- GM11926
- VIN
- 3GTUUDED4TG329311
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC HummerReviews
Weld County Garage GMC Hummer review
Erik Anaya made our buying experience a pleasure. Everyone was helpful and knowledgeable. They have a great inventory and we never felt pressured to buy a vehicle. They helps us pick out a vehicle that met our needs. I would highly recommend Weld County Garage.
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$63,764
MSRP $70,415
Est. $1,162/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Premium gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 direct injection, variable valve control, premi
- Stock #
- 266486
- VIN
- 1GTUUDEL5TZ519223
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$64,949
MSRP $64,949
Est. $1,184/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM12044
- VIN
- 3GTUUDED0TG356442
Features
- Convenience
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC HummerReviews
Weld County Garage GMC Hummer review
Raul, Derek and Alfonso made our buying experience simple! Found the perfect truck for our needs
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$58,680
MSRP $68,480
Est. $1,069/mo Loveland Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- TZ451711
- VIN
- 1GTUUDE81TZ451711
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Loveland Buick GMC -





$57,594
MSRP $67,245
Est. $1,050/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- 266455
- VIN
- 3GTUUDED2TG329582
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMCReviews
2026 GMC Sierra 1500 review
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
-





$62,284
MSRP $68,935
Est. $1,135/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Summit White
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- 266173
- VIN
- 1GTUUDE85TZ256677
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMCReviews
2026 GMC Sierra 1500 review
I bought the AT 4 version. Loaded. Has good ground clearance. It's powered with a 3.0 l turbocharged diesel. Has lots of horsepower and torque. I've had no problem but I talked to my friend who's a certified mechanic and they're having a lot of problems with the engine blowing up at very low mileage. A lot of the time less than 15,000. Some of them have problems with the thrust bearings failing causing increased crankshaft play back and forth to the point where the timing chain and the rubber belt that runs the oil pump can fail. The engine has been described as grenading. They're basically self-destructs. There's a specific power code that indicates low oil pressure and allowed rattle sound before it finally fails. I heard that the engines were on back order, so if you're one of the unfortunates you can plan on waiting 10 or 12 weeks or longer to get your truck back. They have to remove the cab completely to swap motors. But overall I love the truck. It's a big improvement over the 2022 I just traded in.
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$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11663
- VIN
- 3GTUUDED6TG329665
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$64,314
MSRP $70,965
Est. $1,172/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Premium gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 direct injection, variable valve control, premi
- Stock #
- 266487
- VIN
- 1GTUUDEL4TZ519231
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$58,440
MSRP $70,540
Est. $1,065/mo Loveland Buick GMC
Check Availability Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 14-19
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- TG418652
- VIN
- 3GTUUDEL5TG418652
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Loveland Buick GMC -





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11481
- VIN
- 1GTUUDED3TZ317148
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11743
- VIN
- 3GTUUDED0TG329452
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11484
- VIN
- 1GTUUDED6TZ317175
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11659
- VIN
- 3GTUUDED1TG329671
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC Hummer -





$62,874
MSRP $71,525
Est. $1,146/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 gasoline direct injection, variable valve contr
- Stock #
- 266165
- VIN
- 3GTUUDEL4TG239891
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11483
- VIN
- 1GTUUDED5TZ317510
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC HummerReviews
Weld County Garage GMC Hummer review
Welc County Garage gave me smoothest car buying experience! Kevin is the best! He was very understanding and reassuring with my specific needs. He also kept in contact to make sure I was satisfied after my purchase! 5 stars!
-





$61,746
MSRP $67,245
Est. $1,125/mo Weld County Garage GMC Hummer
Check Availability Vehicle Information
- Ext. color
- White
- Int. color
- Jet Black, Perforated leather-appointed front outboard seat trim
- Drivetrain
- Four-wheel Drive
- MPG
- 15-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
- Stock #
- GM11662
- VIN
- 3GTUUDED3TG329588
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Weld County Garage GMC HummerReviews
Weld County Garage GMC Hummer review
Great experience! When I contacted Weld County Garage about a used vehicle, Sales Consultant Miguel Orozco provided exceptional service. Due to my 1.5-hour commute from the WCG location, Miguel provided photos and videos of the vehicle so I could be sure it was worth taking a full day off. I later learned that Miguel had come in on his day off to assist me, a gesture I genuinely appreciate. Having visited numerous dealers in my search, Weld County Garage stood out as the most helpful, professional, and customer-centric. They were not just interested in making a quick sale, but in understanding what I was looking for and finding the right vehicle that fit my needs and those of my family. Unlike many dealerships, WCG encouraged me to take the vehicle to my mechanic for a pre-sale diagnostic check, and all details listed on/about the vehicle were 100% correct. Like many, I have never had a pleasant experience purchasing a used car. However, thanks to Miguel and Craig, the entire process was painless and drama-free, instilling in me a newfound confidence in car buying -- especially with the right dealership staff. Thanks for a great experience, WCG!
2026 GMC Sierra 1500 review
This is a great truck. it drives and handles so well. I feel very safe driving this truck. The suspension is the best of any truck I have ever owned.
-





$61,125
MSRP $67,125
Est. $1,114/mo Loveland Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Dark Walnut/Slate
- Drivetrain
- Four-wheel Drive
- MPG
- 14-18
- Fuel type
- Gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 5.3L V-8 direct injection, variable valve control, regul
- Stock #
- TG516880
- VIN
- 3GTUUDED3TG516880
Features
- Convenience
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Loveland Buick GMC -





$63,764
MSRP $70,415
Est. $1,162/mo Markley Buick GMC
Check Availability Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-19
- Fuel type
- Premium gasoline
- Transmission
- Automatic
- Engine
- EcoTec3 6.2L V-8 direct injection, variable valve control, premi
- Stock #
- 266486
- VIN
- 1GTUUDEL5TZ519223
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Sunroof/Moonroof
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
Markley Buick GMC -





Vehicle Information
- Ext. color
- Onyx Black
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 22-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- TG440240
- VIN
- 3GTUUDE8XTG440240
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- USB Port
- WiFi Hotspot
- Exterior
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
VanGuard GMC -





Vehicle Information
- Ext. color
- Sterling Metallic
- Int. color
- Jet Black
- Drivetrain
- Four-wheel Drive
- MPG
- 15-26
- Fuel type
- Diesel
- Transmission
- Automatic
- Engine
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
- Stock #
- TG283174
- VIN
- 3GTUUDE84TG283174
Features
- Convenience
- Adaptive Cruise Control
- Cooled Seats
- Heated Seats
- Heated Steering Wheel
- Keyless Entry
- Keyless Start
- Navigation System
- Remote Start
- Entertainment
- Android Auto®
- Apple CarPlay®
- Bluetooth®
- Premium Sound System
- USB Port
- WiFi Hotspot
- Exterior
- Alloy Wheels
- Tow Hitch
- Tow Hooks
- Safety
- Automatic Emergency Braking
- Backup Camera
- Blind Spot Monitor
- Brake Assist
- LED Headlights
- Lane Departure Warning
- Rain Sensing Wipers
- Rear Cross Traffic Alert
- Stability Control
- Seating
- Leather Seats
- Memory Seat
Dealer
VanGuard GMC
About the 2026 GMC Sierra 1500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 1500 SLT cost?
The 2026 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $55,400.
What is the MPG of the 2026 GMC Sierra 1500 SLT?
The 2026 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2026 GMC Sierra 1500 SLT?
The 2026 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
- GMC Sierra 2500
- GMC Sierra 1500 Limited
- GMC Sierra 1500 Hybrid
- GMC Savana 1500
- Chevrolet Silverado 1500
Is the 2026 GMC Sierra 1500 SLT reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
85% of drivers recommend this car
- Comfort
- 4.4
- Interior
- 4.4
- Performance
- 4.6
- Value
- 3.9
- Exterior
- 4.6
- Reliability
- 4.6
SLT (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" SLT | 4WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
| Inventory price | ||
| Starting at $55,400 | Starting at $58,500 | Starting at $59,200 |
| Combined MPG | ||
| 17 | 16 | 16 |
| Engine | ||
| 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
2026 GMC Sierra 1500 SLT by city
-
2026 GMC Sierra 1500 SLT in Milliken, CO
56 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Platteville, CO
61 listings starting at $53,199
-
2026 GMC Sierra 1500 SLT in La Salle, CO
56 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Evans, CO
56 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Greeley, CO
49 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Johnstown, CO
56 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Mead, CO
61 listings starting at $53,199
-
2026 GMC Sierra 1500 SLT in Aristocrat Ranchettes, CO
59 listings starting at $53,199
-
2026 GMC Sierra 1500 SLT in Firestone, CO
61 listings starting at $53,199
-
2026 GMC Sierra 1500 SLT in Kersey, CO
49 listings starting at $55,640
-
2026 GMC Sierra 1500 SLT in Berthoud, CO
59 listings starting at $53,199
-
2026 GMC Sierra 1500 SLT in Fort Lupton, CO
59 listings starting at $53,199
2026 GMC Sierra 1500 trims
-
2026 GMC Sierra 1500 Elevation
96 listings starting at $46,138
-
2026 GMC Sierra 1500 Pro
61 listings starting at $43,804
-
2026 GMC Sierra 1500 Denali
41 listings starting at $63,344
-
2026 GMC Sierra 1500 AT4
26 listings starting at $63,930