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974 listings
- Price Drop$32,998great price$5,185 below market
- 98,754 miles
- No accidents, 4 owners, personal use
- 5'10” bed, 5.3l, 8cyl
- CarMax South Broadway (6 mi away)
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Located in Littleton, CO / 6 miles away from Denver, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU9DEDXLG110063
Stock: 26869357
Certified Pre-Owned: No - New Listing$43,998good price$4,130 below market
- 52,331 miles
- 1 accident, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- CarMax Loveland (51 mi away)
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Located in Loveland, CO / 51 miles away from Denver, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9FEL9LZ159919
Stock: 26048872
Certified Pre-Owned: No - New Listing$41,999fair price$2,245 below market
- 87,612 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Buick GMC Park Meadows (10 mi away)
- Home delivery*
Close
Located in Lone Tree, CO / 10 miles away from Denver, CO
Denali Ultimate PackageLpo; 22" (55.9 Cm) Bright Chrome WheelsEngine; 6.2L Ecotec3 V8Technology PackageWhite Frost TricoatDriver Alert Package Ii...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9FEL2LZ159809
Stock: LZ159809
Certified Pre-Owned: No
Listed since: 04-18-2025 - Price Drop$32,392good price$2,922 below market
- 61,641 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 2.7l, 4cyl
- Phil Long Hyundai Motor City (61 mi away)
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Located in Colorado Springs, CO / 61 miles away from Denver, CO
Always over 1,000 Pre-Owned in stock! No Payments for 90 days!8-Speed Automatic, 4WD, Black Cloth.Clean CARFAX.Odometer is 11364 miles below market av...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
20 Combined MPG (19 City/22 Highway)
Listing Information:
VIN: 3GTP9CEK1LG399209
Stock: C44384B
Certified Pre-Owned: No
Listed since: 03-27-2025 - New Listing$40,998good price$1,354 below market
- 12,382 miles
- 5'10” bed, 5.3l, 8cyl
- CarMax West 104th Ave (13 mi away)
Close
Located in Federal Heights, CO / 13 miles away from Denver, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary Unavailable.
Features and Specs:
Listing Information:
VIN: 3GTU9CED2LG170557
Stock: 26760504
Certified Pre-Owned: No - $43,999fair price$1,029 below market
- 69,890 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Dodge Ram Colorado Springs (54 mi away)
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Located in Colorado Springs, CO / 54 miles away from Denver, CO
Denali Ultimate PackageEngine; 6.2L Ecotec3 V8Technology PackageWhite Frost TricoatDriver Alert Package IiGmc Multipro Power Steps; Rearward Arti...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU9FEL6LG364503
Stock: LG364503
Certified Pre-Owned: No
Listed since: 04-15-2025 - Price Drop$43,500fair price$1,121 below market
- 60,390 miles
- 1 accident, 2 owners, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Ford Arapahoe (9 mi away)
Close
Located in Centennial, CO / 9 miles away from Denver, CO
Denali Ultimate PackageEngine; 6.2L Ecotec3 V8Technology PackageDriver Alert Package IiGmc Multipro Power Steps; Rearward ArticulatingSunroof; Po...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9FEL6LZ292251
Stock: LZ292251
Certified Pre-Owned: No
Listed since: 03-31-2025 - $35,984fair price$1,613 above market
- 70,030 miles
- No accidents, 3 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- Drive-N-Motion Greeley (50 mi away)
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Located in Greeley, CO / 50 miles away from Denver, CO
Welcome to the best way to purchase your next vehicle! Drive N-Motion is a ZERO FEES - SET PRICING - SECURE FUTURE Automotive Sales and Service Dealer...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9CED4LZ120646
Stock: N10646
Certified Pre-Owned: No
Listed since: 03-31-2025 - New Listing$45,989fair price$1,184 below market
- 49,449 miles
- 1 accident, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- Phil Long Hyundai Motor City (61 mi away)
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Located in Colorado Springs, CO / 61 miles away from Denver, CO
Recent Arrival!Always over 1,000 Pre-Owned in stock! No Payments for 90 days!10-Speed Automatic, 4WD, Dark Walnut/Dark Ash Grey Leather.Odometer is 28...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTU9FEL0LZ214547
Stock: S10559A
Certified Pre-Owned: No
Listed since: 04-18-2025 - $43,979great price$5,728 below market
- 48,973 miles
- No accidents, 1 owner, personal use
- 5'10” bed, 6.2l, 8cyl
- AutoNation Buick GMC Park Meadows (10 mi away)
- Home delivery*
Close
Located in Lone Tree, CO / 10 miles away from Denver, CO
The following items have been reconditioned on this vehicle: new brakes and all new tires! At4 Value PackageEngine; 6.2L Ecotec3 V8Technology Pac...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTP9EEL4MZ259564
Stock: MZ259564
Certified Pre-Owned: No
Listed since: 03-18-2025 - New Listing
- 104,594 miles
- 1 accident, 2 owners, personal use
- 6'7” bed, 5.3l, 8cyl
- AutoNation Chrysler Dodge Jeep Ram Southwest (7 mi away)
- Home delivery*
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Located in Littleton, CO / 7 miles away from Denver, CO
Slt Premium PackageLpo; 22" (55.9Cm) High Gloss Black WheelsSlt Convenience PackageSunroof; PowerDriver Alert Package IAssist Steps; Chrome Wheel...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU9DED3LG340382
Stock: LG340382
Certified Pre-Owned: No
Listed since: 04-18-2025 - 111,089 miles
- 1 accident, 2 owners, personal use
- 5'10” bed, 5.3l, 8cyl
- O'Meara GMC (13 mi away)
Close
Located in Denver, CO / 13 miles away from Denver, CO
Experience the O’Meara Advantage. O’Meara offers a wide range of vehicles at competitive prices, and our knowledgeable staff is dedicated to helping c...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 3GTU9DED8LG452904
Stock: 7026GP
Certified Pre-Owned: No
Listed since: 04-10-2025- Price Drop$31,998good price$3,357 below market
- 90,339 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- CarMax South Broadway (6 mi away)
Close
Located in Littleton, CO / 6 miles away from Denver, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
17 Combined MPG (15 City/21 Highway)
Listing Information:
VIN: 1GTU9DED4KZ335254
Stock: 26729308
Certified Pre-Owned: No - $25,325fair price$222 below market
- 116,501 miles
- 1 accident, 2 owners, personal use only
- 6'7” bed, 5.3l, 8cyl
- Ken Garff Ford Greeley (50 mi away)
Close
Located in Greeley, CO / 50 miles away from Denver, CO
8-Speed Automatic, 4WD, Black Cloth.2021 GMC Sierra 1500 SLE Summit White Double Cab 14/20 City/Highway MPG Certified. EcoTec3 5.3L V8 8-Speed Automat...
AutoCheck Vehicle History Summary
Accident Free Vehicle: No
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTR9BEDXMZ175958
Stock: Z175958T
Certified Pre-Owned: No
Listed since: 03-12-2025 - $39,999fair price$263 above market
- 63,686 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 3l, 6cyl
- Reds Auto and Truck (32 mi away)
Close
Located in Longmont, CO / 32 miles away from Denver, CO
Red's is pleased to present this 2021 GMC Sierra 1500 Elevation! This sweet Sierra comes equipped with a 3.0L Duramax Turbo Diesel engine under the ho...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU9CET0MG288356
Stock: 2025-071
Certified Pre-Owned: No
Listed since: 03-13-2025 - $33,200good price$2,327 below market
- 104,390 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 3l, 6cyl
- AutoNation Buick GMC West (11 mi away)
- Home delivery*
Close
Located in Golden, CO / 11 miles away from Denver, CO
Engine; Duramax 3.0L Turbo-Diesel I6Preferred PackageX31 Off-Road PackageSeats; Front BucketPacific Blue MetallicTrailer Brake Controller; Integr...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTU9CET7MG193079
Stock: MG193079
Certified Pre-Owned: No
Listed since: 03-26-2025 - $34,999good price$1,575 below market
- 127,331 miles
- No accidents, 1 owner, personal use only
- 6'7” bed, 3l, 6cyl
- Reds Auto and Truck (32 mi away)
Close
Located in Longmont, CO / 32 miles away from Denver, CO
Red's is pleased to present this 2021 GMC Sierra 1500 AT4 Duramax! This awesome truck is super cool, coming equipped with the rare 3.0L Duramax Turbo ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
24 Combined MPG (22 City/26 Highway)
Listing Information:
VIN: 3GTU9EET4MG301007
Stock: 2025-153
Certified Pre-Owned: No
Listed since: 04-07-2025 - Price Drop$33,000good price$2,448 below market
- 113,229 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 3l, 6cyl
- AutoNation Ford Arapahoe (9 mi away)
Close
Located in Centennial, CO / 9 miles away from Denver, CO
Engine; Duramax 3.0L Turbo-Diesel I6Keyless StartCooled Front Seat(S)2021GMCSierra 1500 There's a level of quality and refinement in this GMC Sie...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/21 Highway)
Listing Information:
VIN: 3GTU9EET6MG393897
Stock: MG393897
Certified Pre-Owned: No
Listed since: 03-31-2025 - Price Drop$27,800fair price$401 below market
- 87,994 miles
- No accidents, 2 owners, personal use only
- 6'7” bed, 5.3l, 8cyl
- Lakeside Auto Brokers (61 mi away)
Close
Located in Colorado Springs, CO / 61 miles away from Denver, CO
Satin Steel Metallic 2019 GMC Sierra 1500 SLE 4WD 8-Speed Automatic EcoTec3 5.3L V8 8-Speed Automatic, 4WD, Black Cloth, 12-Volt Rear Auxiliary Power ...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 1GTR9BED1KZ348764
Stock: P16918
Certified Pre-Owned: No
Listed since: 04-02-2025 - $42,998fair price$678 below market
- 84,863 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- CarMax Golden (11 mi away)
Close
Located in Golden, CO / 11 miles away from Denver, CO
CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTP9EEL7MG306022
Stock: 26868569
Certified Pre-Owned: No - $45,521fair price$100 above market
- 59,950 miles
- No accidents, personal use only
- 6'7” bed, 6.2l, 8cyl
- ClearShift Loveland (50 mi away)
Close
Located in Loveland, CO / 50 miles away from Denver, CO
The 2021 GMC Sierra 1500 Denali is a premium full-size pickup truck that blends luxury, performance, and advanced technology. Under the hood, this Sie...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
19 Combined MPG (16 City/22 Highway)
Listing Information:
VIN: 1GTU9FEL4MZ244569
Stock: KM244569
Certified Pre-Owned: No
Listed since: 03-07-2025
Showing 1 - 21 out of 974 listings
Consumer Reviews for the GMCÂ Sierra 1500
Read recent reviews for the GMCÂ Sierra 1500
Good but not class leading
Davelv, 07/08/2020
2020 GMC Sierra 1500 Denali 4dr Crew Cab 6.6 ft. SB (5.3L 8cyl 8A)
Just put 8500 miles in 7 weeks on a new 2020 Sierra 1500 Denali with the 3.0 Duramax. Overall mpg was 24 with highway speeds at 75 to 80 mph. Driving at 55 mph in construction zones netted 40 to 50 mpg. Fantastic engine. Ride is smooth. Seats are comfortable. Easy to drive all day. However.... the navigation voice input is useless as it can't recognize most requests. Navigation … also will try to send you down a goat path which might be on the maps but is not a real road. And worse it still has the 2016-2018's occasional problem of saying go right when the direction is really left, and vice-versa. Expect to always have to use Apple Carplay as backup for finding stuff and getting good directions. Also the screen is small and can't adequately display maps and music info at the same time. Tailgate is very heavy, as is its subdoor which is tough to close when the gate is down. Truck came with an electrical cable hanging from underneath that if it had caught on something would have torn it away - but was easily re-positioned to tuck it out of harms way. Heads-up display is nice, but the navigation map doesn't fully translate to it, just arrows and road numbers. Radio when it starts in a garage says no satellite signal message which doesn't go away until the channel is changed in the clear. DEF usage about 1 gallon/1000 miles. The 3.0 Duramax starts quickly and idles at 300 rpm and is almost unnoticeable at stop lights. Definitely suggest getting a start/stop eliminator since otherwise it resets every time the engine starts. Lane keeping is weaker than the 2016-2018 models, and severely lags other manufacturer's capabilities to self-drive for extended periods. Adaptive cruse control uses camera and shuts off when driving into the sun, but the standard cruise can still be used - a radar unit would eliminate this problem. Interior has a lot of plastic on the doors and dash that scratches easily. Sunroof is still only a small single pane instead of dual pane. It is a nice vehicle but would be fantastic with technology upgrades, higher interior quality availability, and some luxury options, e.g. dual pane sunroof, rear window shades, 20 way seats. Note that Model selected was for the 5.3L, not 3.0 Duramax as Edmunds doesn't list it, but this review is for the 3.0 Duramax.
Used 2020 GMC Sierra 1500 in Denver, CO Values
Estimated values
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $29,348 | $31,651 | $33,873 |
| Clean | $28,727 | $30,962 | $33,115 |
| Average | $27,690 | $29,814 | $31,853 |
| Rough | $26,343 | $28,320 | $30,213 |
The average list price of a used 2020 GMC Sierra 1500 in Denver, Colorado is $37,517. The average mileage on a used GMC Sierra 1500 2020 for sale in Denver, Colorado is 79,782. Based on the average mileage of 79,782 for used 2020 GMC Sierra 1500 for sale in Denver, CO and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 1500 2020 in Denver, Colorado to be $27,690.
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