Used GMC Sedans for Sale in Colorado

Filters (2)

Location:

Only show listings in CO?

Include delivery listings?

0 listings match your search criteria. The following filters have been removed:

Body style

3,163 vehicles found

Shop with transparent pricing.

Only show listings that include dealer fees
Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Gray
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents, Perforated Leathe
Transmission:
Automatic
Mileage:
22,940
Stock #:
ARZ128580
VIN:
1GTUUEE8XRZ128580
Gray 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Alpine Buick GMC

Sponsored by Alpine Buick GMC

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

22,940 mi

Highlands Ranch, CO
13 mi away
Fair Deal
Manufacturer certified

$53,027

Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
14,625
Stock #:
WP8778
VIN:
3GTUUGEL1RG231211
Summit White 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2024 GMC Sierra 1500

Denali Crew Cab 4WD

14,625 mi

Thornton, CO
9 mi away
Fair Deal

$57,494

Year:
2021
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
6.6L V8 Biodiesel
Exterior color:
White Frost Tricoat
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
19,013
Stock #:
G623913A
VIN:
1GT49REY8MF318817
White Frost Tricoat 2021 GMC Sierra 2500HD Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2021 GMC Sierra 2500HD

Denali Crew Cab 4WD

19,013 mi

Brighton, CO
15 mi away
Fair Deal
Manufacturer certified

$62,488

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260641
VIN:
1GTPUCEK4TZ388199
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $57,045

$47,795

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
53
Stock #:
TZ509551
VIN:
1GTUUCE88TZ509551
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $62,700

$51,249

$49,249

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
2,965
Stock #:
L194395
VIN:
3GTUUDEL7TG194395
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$7,145

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $69,460

$61,598

$55,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Glacier White Tricoat
Fuel type:
Diesel
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
2,719
Stock #:
L224179
VIN:
3GTUUDE85TG224179
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,895

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $68,785

$55,165

$53,165

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Glacier White Tricoat
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
10
Stock #:
G260703
VIN:
3GTUUGE81TG298460
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,505

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $75,279

$64,841

$63,336

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Black (Obsidian Rush)
Transmission:
Automatic
Mileage:
120
Stock #:
L284613
VIN:
3GTUUFE84TG284613
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,895

 

2026 GMC Sierra 1500

AT4X Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $84,980

$72,026

$70,026

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
22
Stock #:
TG328591
VIN:
3GTUUCE82TG328591
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $65,064

$52,614

$50,614

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260659
VIN:
1GTPUCEK5TZ396649
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $56,550

$47,360

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
50
Stock #:
260612
VIN:
1GTUUEE82TZ414723
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,849

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Aurora, CO
8 mi away

New car

MSRP $72,860

$64,348

$62,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Combined gas mileage:
16 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
TG489565
VIN:
3GTUUAED3TG489565
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$6,250

 

2026 GMC Sierra 1500

Pro Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $53,970

$48,970

$43,519

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
10
Stock #:
G642487
VIN:
3GTUUGE88TG442487
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Brighton, CO
15 mi away

New car

MSRP $74,480

$62,585

$60,585

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
11
Stock #:
TG242647
VIN:
3GTUUDE83TG242647
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $66,835

$54,384

Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Gray
Combined gas mileage:
25 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents, Perforated Leathe
Transmission:
Automatic
Mileage:
22,940
Stock #:
ARZ128580
VIN:
1GTUUEE8XRZ128580
Gray 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Alpine Buick GMC

Sponsored by Alpine Buick GMC

2024 GMC Sierra 1500

AT4 Crew Cab 4WD

22,940 mi

Highlands Ranch, CO
13 mi away
Fair Deal
Manufacturer certified

$53,027

Year:
2024
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
14,625
Stock #:
WP8778
VIN:
3GTUUGEL1RG231211
Summit White 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2024 GMC Sierra 1500

Denali Crew Cab 4WD

14,625 mi

Thornton, CO
9 mi away
Fair Deal

$57,494

Year:
2021
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
6.6L V8 Biodiesel
Exterior color:
White Frost Tricoat
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
19,013
Stock #:
G623913A
VIN:
1GT49REY8MF318817
White Frost Tricoat 2021 GMC Sierra 2500HD Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2021 GMC Sierra 2500HD

Denali Crew Cab 4WD

19,013 mi

Brighton, CO
15 mi away
Fair Deal
Manufacturer certified

$62,488

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260641
VIN:
1GTPUCEK4TZ388199
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $57,045

$47,795

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
53
Stock #:
TZ509551
VIN:
1GTUUCE88TZ509551
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $62,700

$51,249

$49,249

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
2,965
Stock #:
L194395
VIN:
3GTUUDEL7TG194395
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$7,145

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $69,460

$61,598

$55,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Glacier White Tricoat
Fuel type:
Diesel
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
2,719
Stock #:
L224179
VIN:
3GTUUDE85TG224179
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,895

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $68,785

$55,165

$53,165

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Glacier White Tricoat
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
10
Stock #:
G260703
VIN:
3GTUUGE81TG298460
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,505

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $75,279

$64,841

$63,336

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Black (Obsidian Rush)
Transmission:
Automatic
Mileage:
120
Stock #:
L284613
VIN:
3GTUUFE84TG284613
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,895

 

2026 GMC Sierra 1500

AT4X Crew Cab 4WD

Longmont, CO
28 mi away

New car

MSRP $84,980

$72,026

$70,026

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
22
Stock #:
TG328591
VIN:
3GTUUCE82TG328591
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $65,064

$52,614

$50,614

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260659
VIN:
1GTPUCEK5TZ396649
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
10 mi away

New car

MSRP $56,550

$47,360

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
50
Stock #:
260612
VIN:
1GTUUEE82TZ414723
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,849

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Aurora, CO
8 mi away

New car

MSRP $72,860

$64,348

$62,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Combined gas mileage:
16 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
TG489565
VIN:
3GTUUAED3TG489565
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$6,250

 

2026 GMC Sierra 1500

Pro Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $53,970

$48,970

$43,519

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
10
Stock #:
G642487
VIN:
3GTUUGE88TG442487
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Brighton, CO
15 mi away

New car

MSRP $74,480

$62,585

$60,585

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
11
Stock #:
TG242647
VIN:
3GTUUDE83TG242647
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $66,835

$54,384

A better way to discover your best deal

Let us help you find a car you’ll love.