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10,172 listings
- $40,177great price$10,057 below market
- 60,788 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 3l, 6cyl
- Zeigler Buick GMC of Lincolnwood (69 mi away)
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Located in Lincolnwood, IL / 69 miles away from Rockford, IL
2021 GMC Sierra 1500 Denali Onyx Black 4WD*, NAVIGATION w/BACKUP CAMERA*, BLUETOOTH w/MUSIC STREAMING*, BLIND SPOT MONITOR*, PRE-COLLSION WARNING SYST...
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: 3GTU9FET7MG249507
Stock: M25205A
Certified Pre-Owned: No
Listed since: 06-27-2025 - $35,962great price$7,207 below market
- 90,044 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 3l, 6cyl
- Heller Chevrolet GMC (105 mi away)
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Located in El Paso, IL / 105 miles away from Rockford, IL
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: 1GTU9EET3MZ213176
Stock: HG25045B
Certified Pre-Owned: No
Listed since: 06-24-2025 - Price Drop$35,995great price$5,386 below market
- 99,161 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 3l, 6cyl
- Laura Buick GMC (252 mi away)
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Located in Collinsville, IL / 252 miles away from Rockford, IL
Recent Trade! Denali 3.0 Duramax Turbo Diesel Crew Cab 4x4. Navigation System, Power Sunroof, Towing Package, Trailer Brake Controller, 22' Wheels, Ba...
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: 1GTU9FET4MZ369314
Stock: L255342A
Certified Pre-Owned: No
Listed since: 06-20-2025 - Price Drop$27,900great price$10,345 below market
- 121,077 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 6.2l, 8cyl
- McDonald GMC (266 mi away)
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Located in Saginaw, MI / 266 miles away from Rockford, IL
Recent ArrivalBold chrome greets the dawn,Silent power stirs within—Denali’s grace moves.See the complete details below and call us at (989) 790...
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: 3GTU9FEL3MG138047
Stock: 15138047
Certified Pre-Owned: No
Listed since: 05-06-2025 - Price Drop$29,500great price$10,210 below market
- 134,357 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- AutoGiant USA (224 mi away)
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Located in Indianapolis, IN / 224 miles away from Rockford, IL
Priced below KBB Fair Purchase Price!CARFAX One-Owner.Dark Sky Metallic 2021 GMC Sierra 1500 SLT 4WD EcoTec3 6.2L V8 10-Speed AutomaticPremium Plus Pk...
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: 1GTU9DEL5MZ326251
Stock: K326251
Certified Pre-Owned: No
Listed since: 04-28-2025 - $43,000great price$7,125 below market
- 22,465 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- Dave Cross Motors (364 mi away)
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Located in Lees Summit, MO / 364 miles away from Rockford, IL
Cayenne Red Tintcoat 2021 GMC Sierra 1500 SLT 4WD 10-Speed Automatic EcoTec3 5.3L V8 One Owner, ** CLEAN VEHICLE HISTORY...NO ACCIDENTS **, 10-Speed A...
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: 3GTU9DED5MG141965
Stock: DG25144A
Certified Pre-Owned: No
Listed since: 04-24-2025 - $36,000great price$8,245 below market
- 68,528 miles
- No accidents, 1 owner, personal use
- 5'10” bed, 5.3l, 8cyl
- Zeigler Ford of Elkhart (159 mi away)
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Located in Elkhart, IN / 159 miles away from Rockford, IL
Onyx Black 2021 GMC Sierra 1500 AT4 LEATHER, MOONROOF, NAVIGATION, PUSH BUTTON START, REAR VIEW CAMERA, REMOTE START, HEATED SEATS, BLUETOOTH, 4X4, SP...
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: 1GTP9EED2MZ126911
Stock: MZ126911
Certified Pre-Owned: No
Listed since: 04-25-2025 - Price Drop$28,000great price$3,451 below market
- 83,685 miles
- No accidents, 1 owner, personal use only
- 6'7” bed, 5.3l, 8cyl
- Corwin Toyota of Bellevue (365 mi away)
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Located in Bellevue, NE / 365 miles away from Rockford, IL
Our Accident Free, One Owner 2021 GMC Sierra 1500 Elevation Double Cab 4X4 with the X31 Off-Road Pack has a bold presence that really raises your prof...
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: 1GTR9CED8MZ121970
Stock: 3121970
Certified Pre-Owned: No
Listed since: 06-26-2025 - Price Drop$37,984great price$9,066 below market
- 81,498 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- Stew Hansen Buick GMC (247 mi away)
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Located in Clive, IA / 247 miles away from Rockford, IL
2021 GMC Sierra 1500 Denali 4WD Premium Power Meets Bold Precision!81,498 Miles | One Owner | Local Trade | Clean Carfax | Car Bravo Certified | 6.2L ...
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: 1GTU9FEL0MZ303293
Stock: 25S3011
Certified Pre-Owned: Yes
Listed since: 07-09-2025 - Price Drop$33,495great price$5,945 below market
- 37,458 miles
- No accidents, 2 owners, personal use
- 5'10” bed, 2.7l, 4cyl
- Laura Buick GMC (252 mi away)
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Located in Collinsville, IL / 252 miles away from Rockford, IL
This Certified Pre-Owned vehicle comes with the following benefits: -12-month/12,000-mile Bumper-to-Bumper Limited Warranty (whichever comes first) fr...
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 (18 City/21 Highway)
Listing Information:
VIN: 3GTP9BEKXMG175187
Stock: L252997B
Certified Pre-Owned: Yes
Listed since: 05-30-2025 - $36,995great price$5,558 below market
- 76,252 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- Laura Buick GMC (252 mi away)
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Located in Collinsville, IL / 252 miles away from Rockford, IL
1-Owner New Vehicle Trade! AT4 6.2 V8 Crew Cab 4x4. Carbon Pro, Navigation System, Towing Package, Trailer Brake Controller, Backup Camera, Backup Sen...
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: 1GTP9EEL2MZ295057
Stock: L253787A
Certified Pre-Owned: No
Listed since: 04-25-2025 - Price Drop$40,498great price$8,053 below market
- 71,143 miles
- No accidents, 1 owner, personal use
- 6'7” bed, 6.2l, 8cyl
- Ken Ganley Kia Mentor (398 mi away)
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Located in Mentor, OH / 398 miles away from Rockford, IL
Conquer the Road with Power and Precision: Experience the 2021 GMC Sierra 1500 AT4, Where Rugged Capability Meets Luxurious Comfort in Every MileStep ...
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: 1GTP9EEL0MZ157680
Stock: 9833T
Certified Pre-Owned: No
Listed since: 07-24-2025 - Price Drop$41,791great price$7,201 below market
- 49,076 miles
- No accidents, 1 owner, personal use
- 5'10” bed, 5.3l, 8cyl
- Hubler Chevrolet Center (254 mi away)
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Located in Shelbyville, IN / 254 miles away from Rockford, IL
*** LOCATED IN SHELBYVILLE! *** CALL TODAY 317-392-4101! *** Non-Smoker vehicle, 2yr/100,000 POWERTRAIN WARRANTY! FULL FACTORY WARRANTY REMAINING! JUS...
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: 3GTU9DED2MG352539
Stock: P9121
Certified Pre-Owned: No
Listed since: 07-09-2025 - Price Drop$34,500great price$5,892 below market
- 80,599 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- Dale Howard Chevrolet GMC (217 mi away)
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Located in Iowa Falls, IA / 217 miles away from Rockford, IL
2021 GMC Sierra 1500 SLT 4WD Crew Cab – Premium Plus, X31 Off-Road, Fully LoadedThis 2021 GMC Sierra 1500 SLT 4WD Crew Cab in Summit White with a Je...
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: 3GTU9DED7MG249360
Stock: 25F348A
Certified Pre-Owned: No
Listed since: 05-29-2025 - $42,999great price$7,321 below market
- 59,877 miles
- No accidents, 3 owners, personal use only
- 5'10” bed, 3l, 6cyl
- Fulton Ford (282 mi away)
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Located in Fulton, MO / 282 miles away from Rockford, IL
2021 GMC Sierra 1500 Denali Cayenne Red Tintcoat Apple Carplay/Android Auto, Bluetooth, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Powe...
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: 1GTU9FET3MZ335039
Stock: MZ335039
Certified Pre-Owned: No
Listed since: 07-24-2025 - Price Drop$37,588great price$6,280 below market
- 58,993 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 5.3l, 8cyl
- Driveway (477 mi away)
- Home delivery*
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Located in Wexford, PA / 477 miles away from Rockford, IL
CarFax No Accidents Reported,CarFax 1-Owner,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Chrome Wheels,Heated Seats,Heated Steering Wheel...
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: 1GTU9DED0MZ254609
Stock: V254609A
Certified Pre-Owned: No - Price Drop$41,495great price$5,010 below market
- 65,056 miles
- No accidents, 1 owner, personal use only
- 6'7” bed, 6.2l, 8cyl
- Laura Buick GMC (252 mi away)
Close
Located in Collinsville, IL / 252 miles away from Rockford, IL
This Certified Pre-Owned vehicle comes with the following benefits: -12-month/12,000-mile Bumper-to-Bumper Limited Warranty (whichever comes first) fr...
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: 1GTU9FEL8MZ234627
Stock: L253356A
Certified Pre-Owned: Yes
Listed since: 05-14-2025 - Price Drop$40,434great price$5,899 below market
- 47,501 miles
- No accidents, 1 owner, personal use
- 5'10” bed, 3l, 6cyl
- Reiselman GMC (414 mi away)
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Located in Springfield, TN / 414 miles away from Rockford, IL
REARVIEW CAMERA!, BLUETOOTH!, USB PORT!, Apple-Android CAR PLAY!, ONE OWNER!, CLEAN CAR FAX!, SALES PRICE REFLECTS A $1500 DISCOUNT IF FINANCED WITH U...
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: 3GTU9EET8MG172141
Stock: 1R1015
Certified Pre-Owned: No
Listed since: 04-10-2025 - Price Drop$31,994great price$4,454 below market
- 113,152 miles
- No accidents, 3 owners, corporate fleet vehicle
- 5'10” bed, 5.3l, 8cyl
- Cowboy Chevrolet GMC (493 mi away)
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Located in Heber Springs, AR / 493 miles away from Rockford, IL
2 YEAR / 100K MILE QUALITY CERTIFIED POWERTRAIN COVERAGE, 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather, 12-Volt Rear Auxiliary Pow...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: No
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: 3GTP9EED3MG186759
Stock: MG186759
Certified Pre-Owned: No
Listed since: 03-03-2025 - $43,990great price$5,966 below market
- 58,887 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 3l, 6cyl
- Carvana - Cincinnati (321 mi away)
- Home delivery*
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Located in Cincinnati, OH / 321 miles away from Rockford, IL
At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...
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: 1GTU9EET7MZ216470
Stock: 2003867144
Certified Pre-Owned: No
Listed since: 07-10-2025 - New Listing$42,954great price$5,740 below market
- 68,253 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- Bob Ross Buick GMC (311 mi away)
Close
Located in Centerville, OH / 311 miles away from Rockford, IL
Experience premium power and luxury with this Onyx Black 2021 GMC Sierra 1500 Denali Crew Cab 4x4. Equipped with the potent EcoTec3 6.2L V8 engine 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:
Listing Information:
VIN: 3GTU9FELXMG311661
Stock: T2624A
Certified Pre-Owned: Yes
Listed since: 07-28-2025
Showing 1 - 21 out of 10,172 listings
Consumer Reviews for the GMC Sierra 1500
Read recent reviews for the GMC Sierra 1500
Valve lifter problem
Rod, 09/02/2021
2021 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
I have a 2021 GMC 5.3L w/10spd transmission. I pull a 21’ cargo trailer w/2 Polaris Trail Rzr’s. Yesterday at 13,800 miles the valve lifter on #5 cylinder went out. We were 80 miles from home in the middle of no-where. We limped home.
The truck is beautiful, pulls great and gets good mileage, but GM should let customers know about this kind of potential problem.
The dealer told me … today that it could take a month to get parts and get it fixed. I need the truck almost every day, but now I walk for a month! NOT HAPPY! I’ve been a GMC customer for 35 years and bought north of 17 new pickups. Never had this problem. When this is fixed I will have to look at other brands.
Used 2021 GMC Sierra 1500 in Rockford, IL Values
Estimated values
2021 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (3.0L 6cyl Turbodiesel 10A) with no options
| Condition | Trade-In | Private Party | Dealer Retail |
|---|---|---|---|
| Outstanding | $35,870 | $38,380 | $40,905 |
| Clean | $35,213 | $37,640 | $40,076 |
| Average | $34,119 | $36,406 | $38,693 |
| Rough | $32,696 | $34,801 | $36,896 |
The average list price of a used 2021 GMC Sierra 1500 in Rockford, Illinois is $37,298. The average mileage on a used GMC Sierra 1500 2021 for sale in Rockford, Illinois is 73,707. Based on the average mileage of 73,707 for used 2021 GMC Sierra 1500 for sale in Rockford, IL 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 2021 in Rockford, Illinois to be $34,119.
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* Delivery of any kind does not apply to Alaska and Hawaii. Contact the dealer for delivery details, restrictions and costs.