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Used
2018 GMC Sierra 1500 trucks
for sale
near
Edgewater, CO
- 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.
Certified
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Our salesman, Ed was great.
Our salesman, Ed was great. Patient, funny and knowledgeable. Only showed us the cars we were interested in . We would definitely work with him again.
2018 crew cab gmc Sierra 1500
Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Had a great experience buying my Jeep.
Had a great experience buying my Jeep. Would definitely come back to purchase from them again.
new owner of the gmc denali, 2018 6.2
handles and drives great, the electronics don't always work, mirrors don't always work, spray with wd 40, check engine light, EVAP culprit, auto nation has no luck with this, will drive it till the warrenty expires and its back to ford for me
Used
2018 GMC Sierra 1500 SLT
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Reviews
Jesus Hernandez was amazing and helped with us get into a
Jesus Hernandez was amazing and helped with us get into a vehicle same day woo!
best in class
My GMC Sierra is the best ride I have had in all the years that I have been driving. I started driving in 1977. I love my new Sierra.
Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great place to buy a new car they had what I was looking
Great place to buy a new car they had what I was looking for and they were professional took care of me.we were there for about 2 hrs that?s not bad for buying a new vehicle
Better than my old truck
The truck has more features than I need. It is quiet and comfortable. it has plenty of power to pull a work trailer. Overall a nice truck
Vehicle information
Features
Reviews
Great experience Diana helped me out a lot had an easy
Great experience Diana helped me out a lot had an easy first time buyer experience drove of with what I wanted thank you Diana and Ethio Motors.
This is an attractive and enjoyable vehicle.
I traded my Chevrolet Silverado for this GM Certified GMC Sierra 1500. It is an attractive and enjoyable vehicle. Some years ago I had a GMC and really prefer them over a Chevrolet. This vehicle is just what I need for hauling and general driving.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
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Reviews
Megi has helped us into three vehicles over the past
Megi has helped us into three vehicles over the past year, and every experience has been efficient, seamless, and genuinely enjoyable. She’s not only incredibly knowledgeable and responsive but also an absolute pleasure to work with. Megi goes above and beyond to make the process smooth from start to finish. We highly recommend her as both a person and a trusted partner when you’re looking for your next vehicle!
Used
2018 GMC Sierra 1500 SLT
Vehicle information
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Reviews
I had an exceptional experience working with Kristian
I had an exceptional experience working with Kristian Fernanda in the purchase of my GX550 Overtrail Plus. He was incredibly knowledgeable and honest, offering detailed insights without any pressure. He made the entire process smooth and enjoyable, answering all my questions with clarity and ensuring I was comfortable every step of the way. I truly appreciated the low-pressure approach and felt like I was making an informed decision. Financing decisions were easy working with Raymond Rodriguez and I enjoyed our discussions while waiting for the banks to respond back with rates. I really appreciated Alan Ruiz going over all of the tech with me. This is my fourth Lexus and by far the best purchase experience. Thank you!
Used
2018 GMC Sierra 1500 SLE
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Reviews
I have had my 2018 F-150 serviced there Chaz is the main
I have had my 2018 F-150 serviced there Chaz is the main service guy i work with, but I got Ashley and Zackary. Been to other dealerships this by far the best in colorado since 1992 and Ford has all i have purchase from.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Saw a preview of a Porsche Macan GTS they listed but they
Saw a preview of a Porsche Macan GTS they listed but they did not have photos posted so I inquired. David emailed me immediately, and told me it was incoming and would send pix as soon as it arrived. A day or 2 later I got several high quality photos of it inside and out and a follow up phone call making sure I received them, and if there was anything else I wanted photos of or had any questions. Vehicle was beautiful and professionally detailed, but unfortunately when we went over the option list it was missing a few "must-haves" for me. When I told him that I wasn't interested only because it didn't have those options, he asked if I would like him to keep my info and let me know if he finds the exact one I'm looking for, which I really appreciated! Other dealers with similar vehicles I inquired about took days to reply and immediately lost interest in making a sale as soon as we determined their vehicle was missing those must-have options. At that point, they were only interested in making the sale on THAT car TODAY, not a potential future sale. David understood that not all deals happen immediately, and I'm a serious buyer just waiting for the perfect optioned car, so I'm really hoping he is able to find me the exact spec GTS I'm searching for. I know it's out there and with the excellent sales experience so far, I feel comfortable buying a car from them.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience.
Great experience. Good people. Very friendly atmosphere . Thanks to pre-owned vehicle manager G. W.
Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
They were fair and responsive.
They were fair and responsive. Answered all questions. Speed of buying experience was best I’ve ever experienced.
Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
?????????? I had a great car-buying experience at Mike
?????????? I had a great car-buying experience at Mike Maroone GMC in Boulder. From start to finish, the team went above and beyond. A special thank you to Austin, the new car sales manager, Brayden, Cosmin, and Alec. Their customer service was outstanding, and what really stood out was their follow-through. Anytime I had multiple questions, they took the time to explain things in a way that I could clearly understand?never rushed, never brushed off. This wasn?t just about buying a vehicle?it was about feeling taken care of. The level of professionalism, patience, and genuine care made this the smoothest and most enjoyable car-buying experience I?ve ever had. I highly recommend Austin, Brayden, Alec and Cosmin, and the entire team at Mike Maroone GMC Boulder!
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Vehicle information
Features
Reviews
GREAT VALUE - GREAT SERVICE - GREAT TRUCK
HONEST Abe owns and runs this dealership and is not your stereotypical used car guy. He makes promises and keeps them. He took care of the finer elements of a used truck purchase by making sure everything worked and looked good before we took it home. He also referred me to his audio guy and assured that I received excellent service at an excellent price. I got more than a used truck with Truck Kings, I also got access to their network of trusted professionals to modify and maintain it. I will buy my next truck from Abe again.
Vehicle information
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Reviews
Quick responses to questions and a willingness to work
Quick responses to questions and a willingness to work with me to find a workable solution.
Used
2018 GMC Sierra 1500 SLT
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Reviews
I recommend this dealer and Logan, just a good
I recommend this dealer and Logan, just a good experience. They were out of our way but i tried another Hyundai place and nothing beats this place. Thank you
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Matt is knowledgeable and helpful.
Matt is knowledgeable and helpful. Rich was great at explaining the financing options. They even delivered my new car to me at the gym! I'm very pleased.
Used
2018 GMC Sierra 1500 Denali
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Reviews
Seamless experience
Amazing experience .super patient and no hassle team, completely transparent Charles and Rick took good care of us! I would go back there again with my next purchase
Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Just a update regarding my last rating and review, after
Just a update regarding my last rating and review, after a meeting with the owner Ali Awada. He took care of me and paid for my car repair and gave me 100.00 for my family and I to have dinner. Thanks Colorado Auto Finders for doing your best to make things right for with me.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $67,895 | 4 Good deals |
| 2025 GMC Sierra 1500 | $55,462 | 7 Great deals |
| 2024 GMC Sierra 1500 | $49,694 | 8 Great deals |
| 2023 GMC Sierra 1500 | $47,513 | 5 Great deals |
| 2022 GMC Sierra 1500 | $41,930 | 7 Great deals |
| 2021 GMC Sierra 1500 | $36,504 | 11 Great deals |
| 2020 GMC Sierra 1500 | $34,340 | 6 Great deals |
| 2019 GMC Sierra 1500 | $34,477 | 24 Good deals |
About the 2018 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 20
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
How much does the 2018 GMC Sierra 1500 cost?
The 2018 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 2018 Sierra 1500 is $27,016, with pricing starting at $9,500.
What is the MPG of the 2018 GMC Sierra 1500?
The 2018 GMC Sierra 1500 offers up to 18 MPG in city driving and 24 MPG on the highway for a combined rating of 20 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.
What are some similar vehicles and competitors of the 2018 GMC Sierra 1500?
The 2018 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2018 GMC Sierra 1500 reliable?
The 2018 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2018 Sierra 1500 owners.
Is the 2018 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2018 GMC Sierra 1500.
- Comfort
- 4.9
- Interior
- 4.8
- Performance
- 4.7
- Value
- 4.6
- Exterior
- 4.8
- Reliability
- 4.7
93% of drivers recommend this car
- Comfort
- 4.9
- Interior
- 4.8
- Performance
- 4.7
- Value
- 4.6
- Exterior
- 4.8
- Reliability
- 4.7
Base (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2WD Crew Cab 143.5" | 4WD Crew Cab 143.5" | 4WD Double Cab 143.5" | 2WD Double Cab 143.5" | 4WD Crew Cab 153.0" | 2WD Crew Cab 153.0" | 4WD Reg Cab 119.0" | 2WD Reg Cab 119.0" | 2WD Reg Cab 133.0" | 4WD Reg Cab 133.0" |
| Inventory price | |||||||||
| Starting at $35,500 | Starting at $38,700 | Starting at $37,000 | Starting at $33,000 | Starting at $40,100 | Starting at $36,900 | Starting at $32,900 | Starting at $29,000 | Starting at $29,300 | Starting at $33,200 |
| Combined MPG | |||||||||
| 20 | 19 | 19 | 20 | 18 | 19 | 19 | 20 | 20 | 19 |
| Engine | |||||||||
| 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 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) | 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 | ||
|---|---|---|
| 4WD Crew Cab 153.0" Denali | 2WD Crew Cab 143.5" Denali | 4WD Crew Cab 143.5" Denali |
| Inventory price | ||
| Starting at $56,300 | Starting at $52,900 | Starting at $56,000 |
| Combined MPG | ||
| 17 | 18 | 17 |
| Engine | ||
| 420.0-hp, 6.2-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) |
SLE (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2WD Reg Cab 119.0" SLE | 4WD Reg Cab 133.0" SLE | 4WD Reg Cab 119.0" SLE | 2WD Reg Cab 133.0" SLE | 4WD Double Cab 143.5" SLE | 2WD Double Cab 143.5" SLE | 4WD Crew Cab 153.0" SLE | 2WD Crew Cab 153.0" SLE | 2WD Crew Cab 143.5" SLE | 4WD Crew Cab 143.5" SLE |
| Inventory price | |||||||||
| Starting at $35,700 | Starting at $39,900 | Starting at $39,600 | Starting at $35,800 | Starting at $42,100 | Starting at $38,300 | Starting at $46,100 | Starting at $42,100 | Starting at $40,700 | Starting at $44,700 |
| Combined MPG | |||||||||
| 20 | 19 | 19 | 20 | 19 | 20 | 18 | 19 | 20 | 19 |
| Engine | |||||||||
| 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 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) |
SLT (5 styles)
| Style | ||||
|---|---|---|---|---|
| 2WD Double Cab 143.5" SLT | 4WD Crew Cab 143.5" SLT | 2WD Crew Cab 143.5" SLT | 4WD Double Cab 143.5" SLT | 4WD Crew Cab 153.0" SLT |
| Inventory price | ||||
| Starting at $42,800 | Starting at $48,400 | Starting at $45,200 | Starting at $46,000 | Starting at $48,700 |
| Combined MPG | ||||
| 19 | 17 | 18 | 18 | 17 |
| Engine | ||||
| 420.0-hp, 6.2-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) | 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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2018 GMC Sierra 1500 by cab style
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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.