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Used
2021 GMC Sierra 1500 Denali trucks
for sale
near
Brookfield, 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 Denali
Vehicle information
Features
Reviews
I just got my Tesla at Affinity.
I just got my Tesla at Affinity. Milton was amazing. He knew exactly what I needed. I strongly suggest that you go see him before EV credit is over.
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
Great customer service.
Bought a car on Wednesday night noticed the brake light was out. Told me to bring it back on Monday and they would take care of it. Did the oh I am in a cabin filter and even filled it up. Will shop again.
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 Denali
Vehicle information
Features
Reviews
Super accommodating and easy to reach by phone
Thanks again for all your help! Highly recommend! Excellent customer service Very accommodating and friendly staff If you’re looking for a used car this place is the best
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 Denali
Vehicle information
Features
Reviews
Eva and the team at Castle cars of Naperville we great!
Eva and the team at Castle cars of Naperville we great! In and out, the team was friendly and very attentive to my questions and needs. Highly recommend!
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.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I had a really good experience with this dealership.
I had a really good experience with this dealership. They were responsive and answered and questions that I had. In particular I want to share with you how great a gentleman named Steve was. He was awesome and he made the process go smoothly. Also a gentleman by the name of Chris helped me out and he was great. Keep up the great work fellas!
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 Denali
Vehicle information
Features
Reviews
I am satisfied with my visit.
I am satisfied with my visit. I do think more thorough inspections should be done. My headlight was out and I knew this before the visit, but on the checklist it was marked as good. I love the cookies that are left after service visits as well .
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I've been purchasing automobile from Haggerty in Villa
I've been purchasing automobile from Haggerty in Villa Park for OVER 25 years. Also have them serviced at the Villa Park Haggerty location and body work done at the Glen Ellyn Chevy location. Good people and great service,
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
They were patient to answer all my questions and provided
They were patient to answer all my questions and provided all the answers I needed about transportation of the vehicle to me I would highly recommend them
GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent service even delivered the new car door to door
Excellent service even delivered the new car door to door very convenient. They made the whole car buying process very easy. I would highly recommend them to anyone who is interested in a buying a new car.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent service Professional service Quick
Excellent service Professional service Quick service Polite customer service Excellent customer communication Very detailed repairs
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I went to Hawk St.
I went to Hawk St. Charles with the intention of just looking at the Broncos. I test drove 2 . D.J. Was my salesperson . He was so well informed on both vehicles. Showing me all options. I easily made my decision to buy the Big Bend Sasquatch. I got a great deal. I couldn?t be happier with my purchase. I?m obsessed! Thank you to all of Hawk Ford St.Charles. I will be recommending you to all my friends and family.
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Used
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Vehicle information
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 Denali | 1 Good deal |
About the 2021 GMC Sierra 1500 Denali
Denali shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2021 GMC Sierra 1500 Denali cost?
The 2021 GMC Sierra 1500 Denali price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 Denali is $40,137, with pricing starting at $24,000.
What is the MPG of the 2021 GMC Sierra 1500 Denali?
The 2021 GMC Sierra 1500 Denali offers up to 15 MPG in city driving and 22 MPG on the highway for a combined rating of 17 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 options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 GMC Sierra 1500 Denali?
The 2021 GMC Sierra 1500 Denali compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 Denali 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.
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
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) |
*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.
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
