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1,549 listings
- $37,749great price$6,600 below market
- 87,627 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Buick GMC Park Meadows (10 mi away)
- Home delivery*
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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$48,999good price$4,243 below market
- 21,311 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Buick GMC West (11 mi away)
- Home delivery*
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Located in Golden, CO / 11 miles away from Denver, CO
Off-Road Performance PackageAt4 Premium PackageEngine; 6.2L Ecotec3 V8Lpo; Performance Upgrade PackageTechnology PackageLpo; Cat-Back Performance...
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: 3GTP9EEL5LG219105
Stock: LG219105
Certified Pre-Owned: No
Listed since: 07-12-2025 - Price Drop$45,999good price$3,533 below market
- 34,334 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Buick GMC West (11 mi away)
- Home delivery*
Close
Located in Golden, CO / 11 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: 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: 3GTU9FEL6LG364016
Stock: LG364016
Certified Pre-Owned: No
Listed since: 06-06-2025 - Price Drop$41,499fair price$124 below market
- 63,112 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 3l, 6cyl
- Emich Chevrolet (5 mi away)
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Located in Lakewood, CO / 5 miles away from Denver, CO
Clean CARFAX. 2020 GMC Sierra 1500 Denali 4WD 22/26 City/Highway MPG Clean Carfax Vehicle History Report, Sierra 1500 Denali, 4D Crew Cab, 3.0L I6, 10...
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: 3GTU9FET2LG368659
Stock: P368659
Certified Pre-Owned: No
Listed since: 06-02-2025 - Price Drop$31,498fair price$2,039 below market
- 104,604 miles
- 1 accident, 2 owners, personal use
- 6'7” bed, 5.3l, 8cyl
- AutoNation Chrysler Dodge Jeep Ram Southwest (7 mi away)
- Home delivery*
Close
Located in Littleton, CO / 7 miles away from Denver, CO
The following items have been reconditioned on this vehicle: new brakes! Slt Premium PackageLpo; 22" (55.9Cm) High Gloss Black WheelsSlt Convenie...
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 - $45,690fair price$138 above market
- 41,805 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Chrysler Jeep West (11 mi away)
- Home delivery*
Close
Located in Golden, CO / 11 miles away from Denver, CO
Denali Ultimate PackageEngine; 6.2L Ecotec3 V8White Frost TricoatLeather SeatsNavigation SystemKeyless StartCooled Front Seat(S)Jet Black; Forg...
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: 1GTU9FEL2LZ350968
Stock: LZ350968
Certified Pre-Owned: No
Listed since: 07-14-2025 - $40,798fair price$838 above market
- 83,409 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Toyota Arapahoe (9 mi away)
- Home delivery*Five Star Dealer
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Located in Centennial, CO / 9 miles away from Denver, CO
At4 Premium PackageEngine; 6.2L Ecotec3 V8Technology PackageAt4 Preferred PackageDriver Alert Package IiSunroof; PowerDriver Alert Package ILpo...
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: 1GTP9EEL3LZ333006
Stock: LZ333006
Certified Pre-Owned: No
Listed since: 07-26-2025 - $40,500fair price$926 above market
- 46,949 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- Sterling Auto Sales (24 mi away)
Close
Located in Franktown, CO / 24 miles away from Denver, CO
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: 3GTU9DED4LG364349
Stock: 25116
Certified Pre-Owned: No
Listed since: 07-22-2025 - 67,527 miles
- No accidents, 4 owners, personal use only
- 6'7” bed, 6.2l, 8cyl
- Genesis of Littleton (6 mi away)
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Located in Littleton, CO / 6 miles away from Denver, CO
Satin Steel Metallic 2020 GMC Sierra 1500 SLT 4WD 10-Speed Automatic EcoTec3 6.2L V8 2-Keys, Sierra 1500 SLT, Double Cab, EcoTec3 6.2L V8, 10-Speed Au...
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: 1GTV9DEL8LZ143235
Stock: EPLZ143235
Certified Pre-Owned: No
Listed since: 06-16-2025- 70,395 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 3l, 6cyl
- Johnson Auto Plaza (19 mi away)
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Located in Brighton, CO / 19 miles away from Denver, CO
**Accident-Free Carfax** **Sierra 1500 AT4 Crew Cab 4WD** *3.0L Duramax Turbo Diesel* *AT4 Preferred Package* *Driver Alert Package I* *Driver Alert P...
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: 1GTU9EET8LZ289135
Stock: C563699B
Certified Pre-Owned: No
Listed since: 07-08-2025- Price Drop
- 75,667 miles
- No accidents, 3 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- Ken Garff Ford Greeley (50 mi away)
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Located in Greeley, CO / 50 miles away from Denver, CO
Traditional Certified, 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/...
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: 3GTU9DED3LG209663
Stock: LG209663T
Certified Pre-Owned: No
Listed since: 07-24-2025 
Photos not available- 74,605 miles
- No accidents, personal use only
- 6'7” bed, 5.3l, 8cyl
- Castle Rock Chevrolet GMC (24 mi away)
Close
Located in Castle Rock, CO / 24 miles away from Denver, CO
Sierra 1500 SLT, 10-Speed Automatic, 4WD, Jet Black Leather, 120-Volt Bed Mounted Power Outlet, 4-Wheel Disc Brakes, 4G LTE Wi-Fi Hotspot Capable, 6-S...
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: 1GTR9DED9LZ175797
Stock: LZ175797A
Certified Pre-Owned: No
Listed since: 07-31-2025- Price Drop$38,000great price$5,444 below market
- 56,070 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- McDonald Hyundai (9 mi away)
- Home delivery*
Close
Located in Highlands Ranch, CO / 9 miles away from Denver, CO
CARFAX One-Owner. Clean CARFAX. 2021 GMC Sierra 1500 SLT 4WD ** SLT PREMIUM PLUS PACKAGE ** $7145 OPTION ** X31 OFF ROAD PACKAGE ** LANE KEEP ASSIST *...
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: 3GTU9DED7MG254431
Stock: HPMG254431
Certified Pre-Owned: No
Listed since: 06-18-2025 - $34,998
- 28,835 miles
- No accidents, 1 owner, personal use only
- Levi's Auto Sales 1 (5 mi away)
Close
Located in Denver, CO / 5 miles away from Denver, CO
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: 1GTU9BED4LZ232275
Stock: 6775
Certified Pre-Owned: No - $35,990fair price$1,883 below market
- 87,840 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- Herl Chevrolet GMC (175 mi away)
Close
Located in Goodland, KS / 175 miles away from Denver, CO
This 2019 GMC Sierra 1500 SLT Red Quartz Tintcoat with Dark Walnut/Slate interior has 87840 miles. No Accidents! SLT Convenience PackagePower Sliding ...
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: 3GTU9DED0KG253845
Stock: KG253845
Certified Pre-Owned: No
Listed since: 06-30-2025 - Price Drop$43,597fair price$2,061 below market
- 25,618 miles
- No accidents, 4 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- EchoPark Automotive Denver (Thornton) (13 mi away)
- Five Star Dealer
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Located in Thornton, CO / 13 miles away from Denver, CO
At EchoPark, it’s all about offering you options for a happy experience. We have thousands of new-to-you makes and models that range from sedans to tr...
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: 3GTU9DEDXMG223982
Stock: PMG223982
Certified Pre-Owned: No
Listed since: 07-20-2025 - $44,971fair price$11 below market
- 46,830 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- ClearShift Loveland (50 mi away)
Close
Located in Loveland, CO / 50 miles away from Denver, CO
2021 GMC Sierra 1500 Denali with the 5.3L V8 engine and Driver Alert Package I, offering a premium full-size truck experience with advanced safety and...
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: 1GTU9FED9MZ186838
Stock: KM186838
Certified Pre-Owned: No
Listed since: 06-26-2025 - Price Drop$39,997fair price$1,089 above market
- 57,293 miles
- No accidents, personal use only
- 5'10” bed, 5.3l, 8cyl
- Castle Rock Chevrolet GMC (24 mi away)
Close
Located in Castle Rock, CO / 24 miles away from Denver, CO
EcoTec3 5.3L V8, 10-Speed Automatic, 4WD, Cayenne Red, Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster...
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: 1GTU9DED7MZ304549
Stock: MZ304549A
Certified Pre-Owned: Yes
Listed since: 07-02-2025 - $34,999fair price$472 below market
- 117,868 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
At4 Premium PackageEngine; 6.2L Ecotec3 V8Technology PackageAt4 Preferred PackageSunroof; PowerDriver Alert Package IDriver Alert Package IiLpo...
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: 3GTP9EEL1KG295743
Stock: KG295743
Certified Pre-Owned: No
Listed since: 07-31-2025 - Price Drop$32,895fair price$1,632 below market
- 120,893 miles
- No accidents, 2 owners, personal use
- 5'10” bed, 3l, 6cyl
- Turner Automotive (175 mi away)
Close
Located in Montrose, CO / 175 miles away from Denver, CO
Cayenne Red 2021 GMC Sierra 1500 Denali 4WD 10-Speed Automatic 3.0L I6The Turner Toyota Advantage.... 22/26 City/Highway MPGTax, title and licens...
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: 1GTU9FET9MZ147903
Stock: U7088
Certified Pre-Owned: No
Listed since: 06-07-2025 - Price Drop$39,582good price$3,185 below market
- 70,640 miles
- 1 accident, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoNation Ford Littleton (9 mi away)
- Home delivery*
Close
Located in Littleton, CO / 9 miles away from Denver, CO
Denali Ultimate PackageEngine; 6.2L Ecotec3 V8Technology PackageGmc Multipro Power Steps; Rearward ArticulatingSunroof; PowerDriver Alert Package...
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: 1GTU9FEL2KZ281908
Stock: KZ281908
Certified Pre-Owned: No
Listed since: 07-25-2025
Showing 1 - 21 out of 1,549 listings
Consumer Reviews for the GMC Sierra 1500
Read recent reviews for the GMC Sierra 1500
Pretty Bummed Out
Matthew Laraway, 12/13/2020
2020 GMC Sierra 1500 4dr Crew Cab 4WD 5.8 ft. SB (4.3L 6cyl 6A)
Hopefully all will get resolved...coming out of a Tahoe with 110,000 miles and excited to get into my 2020 Sierra Denali 1500 Carbon Pro with the Duramax Diesel.
At this point, I have had the car 2 weeks and it has been back at the deal twice, this time going on 4 days. First issue was a coolant sensor that set off an engine warning and the second problem is car wouldn’t start due to … dead battery. Apparently 4 open recalls on the 2020 and I guess my dealer didn’t take care of them? They still can’t figure out what is draining the battery. Truck has about 900 miles on it. Now have the feeling of “what’s going to be messed up?” Every time I press the start button. Certainly takes the enjoyment out of owning this physically beautiful truck. When it works it is an absolute joy to drive and it is the best looking truck on the road....all that said....I want it gone.
Used 2020 GMC Sierra 1500 in Denver, CO Values
Estimated values
2020 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (6.2L 8cyl 10A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $34,367 | $36,891 | $39,325 |
| Clean | $33,639 | $36,087 | $38,446 |
| Average | $32,425 | $34,749 | $36,980 |
| Rough | $30,847 | $33,008 | $35,075 |
The average list price of a used 2020 GMC Sierra 1500 in Denver, Colorado is $39,531. The average mileage on a used GMC Sierra 1500 2020 for sale in Denver, Colorado is 65,868. Based on the average mileage of 65,868 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 $32,425.
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