Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
2021 GMC Sierra 1500 trucks
for sale
near
Prospect Heights, IL
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Battery
Todd was very helpful and made sure my car was pulled inside when leaving as it was very slippery outside
This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I initially called this dealer when I saw an online used
I initially called this dealer when I saw an online used vehicle for sale. The sales person that answered the call and helped me was Sam. From the initial conversation up to making the purchase of the car Sam helped me in every step. Very knowledgeable and helpful person. I would trust this guy for any other purchase here for sure.
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excellent customer service!
Excellent customer service! Manny and the team were very informative. Thank you Woody Buick GMC!
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.





Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great.
Great. Sales person was excellent. The Finance Manager was excellent. The Ranger Raptor is the best car I've owned. i would definitely buy here again.
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.






GMC Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very professional, excellent communication Friendly
Very professional, excellent communication Friendly staff, and had the vehicle we wanted, would deal with them again
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My salesman Esad was great.
My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Excellent customer service!
Excellent customer service!! They help me find the perfect car for me, and kept me within my budget!! Friendly staff and beautiful showroom!! Two thumbs way up!! A shout out to Mike Medina the GM who really helped make this purchase smooth and quick! I will be recommending Elgin Auto Sales to all my friends and family!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Michael did wonderful everything was done in a timely
Michael did wonderful everything was done in a timely manner, the service was outstanding. Would recommend to anyone looking for a dependable and trustworthy experience.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great selection of cars.
Great selection of cars. I bought my Tesla at Affinity and couldn't be happier. After going to a few different places Affinity had the cleanest and by far the best service. I will be back again when the time comes.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I worked with Rocky and had an amazing experience.
I worked with Rocky and had an amazing experience. This was my first car purchase from a dealership of any sort so I was very nervous, but he was incredibly kind and helpful and explained everything I had questions on. He was very thorough and I felt super satisfied when I walked off the lot with my car. Cannot thank him enough! Same with Matt the financial adviser there, he was also incredibly thorough and kind and explained anything I had questions on! I highly recommend this dealership and these guys! They were amazing! :D






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
No issues 2 months later.
Bought 3 work trucks. Good price, no nonsense or upsell. 2 months have gone by and I am very happy so far. The amount of trucks they have is beyond belief.






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Great place to buy a vehicle.
Great place to buy a vehicle. The staff is very friendly and the process was very easy






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
We've worked with Tony before & he is very
We've worked with Tony before & he is very knowledgeable & knows just what we like.






GMC Certified
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Danylo and the whole crew at Libertyville Chevy made my
Danylo and the whole crew at Libertyville Chevy made my journey to buying my first car go very smooth. Danylo was very professional and personable. We spoke about many things outside of just buying a car. He made it easy for me to be comfortable in whatever my choice was going to do. The entire team was very encouraging and helping during the process to ensure I understood everything and was taken care of.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
This dealer had the used car I was looking for.
This dealer had the used car I was looking for. The car had the right mileage and a clean fax. The dealership was 1 hour 20 minutes away from me heavy traffic all the way. I figured I would call and ask about the car anyway but I wasn’t planning to drive there. I talked to Phil, a sales rep, and what a gentleman he was. He told me the car was a trade-in and was in fantastic condition. Well, he talked me into driving down there. I arrived about 10 in the morning and left with my new used car by 1:30 that afternoon. I walked Phil through my 128 point inspection, 2 test drives and I ending up looking under the car for any problems. I could not find anything wrong. The car was in great condition just as Phil had described. Phil was a perfect gentleman through the whole process. Every dealership employee I encountered could not do enough for me. Great experience - great car! 6 star experience!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Joey Dalporto assisted us with our purchase of a used
Joey Dalporto assisted us with our purchase of a used Buick Cascade. He was very approachable and helpfully answered all our questions. It was a great car-buying experience.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Price listed is the price you pay!
Dealt with this CarMax dealer over the phone and email. Tried to negotiate a price based on other dealers in the area for the same vehicle and was told that the price listed was the price you pay!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I need a new radio.
I need a new radio. My oil change is fixed. I need to schedule a long appointment






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Rebecca was a great help, she answered all my questions,
Rebecca was a great help, she answered all my questions, kept me updated, telling me what to expect & I was out the door, Yes I'll recommend them






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Juan was excellent to work with, we quickly agreed on a
Juan was excellent to work with, we quickly agreed on a price, the vehicle was cleaned and ready to go by the time the paperwork was complete. Highly recommend.
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $36,000 | |
2025 GMC Sierra 1500 | $35,495 | 2 Good deals |
2024 GMC Sierra 1500 | $34,998 | 31 Good deals |
2023 GMC Sierra 1500 | $30,699 | 36 Good deals |
2022 GMC Sierra 1500 | $33,890 | 7 Great deals |
2020 GMC Sierra 1500 | $27,950 | 16 Good deals |
2019 GMC Sierra 1500 | $16,999 | 11 Good deals |
About the 2021 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 16
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

How much does the 2021 GMC Sierra 1500 cost?
The 2021 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 is $38,906, with pricing starting at $15,980.
What is the MPG of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 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 trim, driving conditions, driving habits, vehicle maintenance, and other factors.
Is the 2021 GMC Sierra 1500 reliable?
The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.
Is the 2021 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
AT4 (2 styles)
Style | |
---|---|
4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
Inventory price | |
Starting at $55,900 | Starting at $54,700 |
Combined MPG | |
16 | 17 |
Engine | |
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (7 styles)
Style | ||||||
---|---|---|---|---|---|---|
4WD Double Cab 147" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Crew Cab 147" | 4WD Crew Cab 157" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
Inventory price | ||||||
Starting at $37,300 | Starting at $34,000 | Starting at $36,400 | Starting at $39,700 | Starting at $40,000 | Starting at $34,700 | Starting at $30,100 |
Combined MPG | ||||||
19 | 21 | 21 | 19 | 19 | 16 | 16 |
Engine | ||||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) |
Denali (3 styles)
Style | ||
---|---|---|
2WD Crew Cab 147" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali |
Inventory price | ||
Starting at $55,800 | Starting at $59,300 | Starting at $59,600 |
Combined MPG | ||
17 | 18 | 18 |
Engine | ||
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (7 styles)
Style | ||||||
---|---|---|---|---|---|---|
4WD Double Cab 147" Elevation w/3VL | 4WD Crew Cab 147" Elevation w/3VL | 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 4WD Double Cab 147" Elevation w/3SB | 4WD Crew Cab 147" Elevation w/3SB | 2WD Crew Cab 147" Elevation |
Inventory price | ||||||
Starting at $44,600 | Starting at $47,200 | Starting at $49,300 | Starting at $43,100 | Starting at $46,400 | Starting at $49,000 | Starting at $45,700 |
Combined MPG | ||||||
19 | 19 | 19 | 21 | 19 | 19 | 21 |
Engine | ||||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (5 styles)
Style | ||||
---|---|---|---|---|
4WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Double Cab 147" SLE |
Inventory price | ||||
Starting at $47,100 | Starting at $47,400 | Starting at $41,400 | Starting at $43,800 | Starting at $44,700 |
Combined MPG | ||||
19 | 19 | 21 | 21 | 19 |
Engine | ||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT (3 styles)
Style | ||
---|---|---|
4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
Inventory price | ||
Starting at $50,800 | Starting at $47,500 | Starting at $51,100 |
Combined MPG | ||
18 | 17 | 18 |
Engine | ||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 Trucks by city
-
2021 GMC Sierra 1500 Trucks in Prospect Heights, IL
9 Great Deals out of 46 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Wheeling, IL
9 Great Deals out of 48 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Mount Prospect, IL
9 Great Deals out of 46 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Arlington Heights, IL
9 Great Deals out of 46 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Buffalo Grove, IL
9 Great Deals out of 44 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Des Plaines, IL
9 Great Deals out of 46 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Riverwoods, IL
9 Great Deals out of 45 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Northbrook, IL
6 Great Deals out of 35 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Rolling Meadows, IL
9 Great Deals out of 46 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Glenview, IL
6 Great Deals out of 40 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Deerfield, IL
9 Great Deals out of 45 listings starting at $28,300
-
2021 GMC Sierra 1500 Trucks in Palatine, IL
9 Great Deals out of 46 listings starting at $28,300
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
Certified cars are manufacturer warrantied and typically go through a rigorous multi-point inspection.
This car is likely to sell soon based on the price, features, and condition.
${award_blurb}
${award_two_blurb}