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Used
2018 GMC Sierra 1500 trucks
for sale
near
Berkley, 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.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Marek consistently provides efficient customer service.
Marek consistently provides efficient customer service. He?s very detailed oriented, is knowledgeable and dedicated to getting it right. Jon provided a ride home and polished out a fender scrape. I?ve used this service garage for 17 years and my 20 yo Crossfire still runs strong.
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
We could not be more pleased with our experience in
We could not be more pleased with our experience in leasing a Jeep! Jakob Torres was wonderful to work with from start to finish. Jakob explained everything clearly, we felt supported throughout the process, and were treated with the utmost professionalism. Highly recommend!
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
Vehicle information
Features
Reviews
Purchasing a car here at Family Trucks & Vans was the
Purchasing a car here at Family Trucks & Vans was the most pleasant, efficient experience! Our salesman, Juan, streamlined the process and scored us a great deal. I highly recommend checking out their line of vans and trucks. Great selection!
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 People and love the atmosphere.
Great People and love the atmosphere. Very helpful in any questions we had. Definitely would come back for my future car purchases.
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






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Planet Hyundai is very patient and very friendly.
Mick Hasley and the team are patient and friendly. When they say they will call back they do, and they are not in a rush, they listen to what you need. I had a 100+ questions as i had not purchased a new car in many years. I was searching for just the right car for my wife, and they listened to what I wanted, and not what they had in stock. Their online chat service is pretty good too if I have a question I think of, I ask the chat and it gets to the rep and they replied. Honest about prices as well.
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
Features






Vehicle information
Features
Reviews
First Car for my Daughter
Kelly was awesome to work with. Very friendly and knows how to conduct professional deals while still having a good time. I would definitely buy another car from Kelly,




Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The customer service rep was very good.
The customer service rep was very good. The scheduling process was very poor. Due to over booking. I came on Thursday for an oil change at 1PM and was told it would take 3 hours. I rescheduled for the next morning 7AM and service was do in do in a timely manner. It was frustrating that it took two tries to a simple oil change.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My wonderful car buying experience
I was very pleased with the vehicle I was able to purchase at Grand Valley Auto Lakewood! I had less than perfect credit after being left carless in my divorce. My friends had recently purchased a car from Mike and Kelley and they assured me I would be treated honestly and fairly. I was very skeptical due to the fact that I had recently been taken advantage of on the purchase of my new TV. They listened to my wants and needs and I left in a car that I both loved and knew would do the job. I would definitely recommend and return for my next vehicle purchase!






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I have purchased a number of vehicles from this location
I have purchased a number of vehicles from this location under different ownership. The one good constant has been the service department and the service tech Dave Singh. Ask for Dave he will not let you down.



Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
friendly, no pressure experience
Great car buying experience. Friendly, knowledgeable, no pressure salesman Kyle Berry. One minor problem was handled quickly and professionally with no hassle. Go see Kyle.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had to have my ev-ecu replaced and the fact that a
I had to have my ev-ecu replaced and the fact that a brand new car required a repair such as this wasn disappointing but Steven's service and professionalism made the whole process somewhat simplified. Highly recommended.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Working with Berenisse in the purchase of the car I was
Working with Berenisse in the purchase of the car I was wanting was an awesome and pleasurable experience. She was not only very knowledgeable but a treat to communicate with and made the whole experience wonderful. If you are looking to purchase a vehicle from Sharpest Rides I recommend working with her hands down. It was my pleasure to work with her.






Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Rafeal was my contact there and he was great.
Rafeal was my contact there and he was great. He went above and beyond to communicate share photos and video and was very transparent. As a matter of fact the whole process and everyone was easy to work with. Not the dealer where sale and sale manager go back and forth to do some crazy negotiating. Open transparent and fair dealing. Rafeal was an advocate throughout and in and out with anew car well less than an hr after trade in paperwork






Vehicle information
Features
Reviews
A dealer like no other!
I usually dont write reviews but my experience with Truck Kings deserves one. Erase any idea you may have of a used car dealer and its inventory and replace it with satisfaction, enjoyment, zero frustration and a buying experience like no other. I had found Truck Kings from an ad online for a vehicle and went there to take a look at it. As it turns out they had 3 trucks that I was interested in. All 3 trucks were beautiful, straight and clean. Abe the owner of Truck Kings and I started discussing buying and trade options. Abe displayed a true knowledge of what he had to sell and was forward and honest about the strengths and weaknesses of each vehicle that we were in discussion about. His knowledge and honesty help me in making the decision as to which vehicle I would ultimatly purchase. During our discussion my trade in vehicle was in play and Abe offered me a very fair price on it. Finalizing our transaction I was left with a feeling like I had been treated well on the sell of my old truck and the purchase of my new truck. There were a few minor items on my new truck that needed to be fixed or replaced and Abe said he would take care of them, he did so promptly only a few days after I had taken delivery of my truck. Abe is a man of his word, his word is his bond and he is a gentelman. If you are in the market for a truck, take time to visit Truck Kings-Abe does some amazing customizing work, I get comments on my truck almost everytime I drive it. He keeps clean good looking inventory and I will definitley be back when it is time for another truck. Abe runs a clean, straigtforward and honest shop. He fascilitates a no pressure enviorment and can help arrange several different financing institutions to help you in getting the best deal avaliable.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
This is the second vehicle that I have purchased from
This is the second vehicle that I have purchased from this dealership and both times I have been very pleased with the price, the sales and finance department personnel and the overall level of professionalism of all involved.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Lewis was good I love our cars thank you much for the
Lewis was good I love our cars thank you much for the service I appreciate it






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Awesome buying experience
Very good buying experience. We purchased a BMW with the help of Phil. Both Phil and the rest of the staff were always very friendly throughout the buying process and we never felt pressured to buy the vehicle. We were able to test drive the car by ourself and more than one time before buying.






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Rafael H was very attentive to what we were looking for
Rafael H was very attentive to what we were looking for in a clean used diesel p up . His assistance in our purchase with our purchase was very good . professional, not pushy Gerald & Kay Schreiber






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Buy great deal
Great I have to do this again good staff George sourial was great handling my purchase. Would recommend every one to going and get a quality vehicle.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $44,344 | |
2025 GMC Sierra 1500 | $39,548 | 4 Good deals |
2024 GMC Sierra 1500 | $37,987 | 27 Good deals |
2023 GMC Sierra 1500 | $38,322 | 24 Good deals |
2022 GMC Sierra 1500 | $30,866 | 18 Good deals |
2021 GMC Sierra 1500 | $27,499 | 20 Good deals |
2020 GMC Sierra 1500 | $24,999 | 18 Good deals |
2019 GMC Sierra 1500 | $20,999 | 7 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 $28,386, with pricing starting at $10,299.
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 body 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.