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*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.
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Used
2018 GMC Sierra 1500 trucks
for sale
near
Greenwood, IN
- 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.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My service appointment was done timely and without issue.
My service appointment was done timely and without issue. The staff I encountered were all pleasant and professional. The waiting area was clean and comfortable with coffee, tea and water readily available.
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
John Chalfin did a great job!
John Chalfin did a great job!!! The best Car Salesman I have ever delt with in over 40 years.
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 Denali
Vehicle information
Features
Reviews
Leasing person
Impressed with the car I leased and the salesman and financial representative. Very professional service and friendly atmosphere.
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.






Certified
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Michael Miller made me comfortable from the very
Michael Miller made me comfortable from the very beginning, great personality, had all the information needed. Held my hand thru the whole process, right up to the handshake when drove off in my new truck. Thank you.
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
Was a great experience and everyone was friendly.
Was a great experience and everyone was friendly. The process was explained and they made the process pleasant. Would definitely recommend this dealership to others.
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 SLE
Vehicle information
Features
Reviews
Very friendly and customer service was very satisfying
Very friendly and customer service was very satisfying and was not a pressure point. It was like going to a place that you want to return to, or refer a friend to. I give Ray Skillman a high ranking 10. And the two gentleman that helped me was absolutely incredible with knowledge and it was like, I felt I was at home. I've got a friend with Ray Skillman. Thank you Ray Skillman,. Signed Thomas






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The mechanics did a terrific job with fixing the issues
The mechanics did a terrific job with fixing the issues of a major oil leak and radiator replacement. Office receptionist Amanda is always so pleasant and friendly. Jason Guerra is absolutely a wonderful Service Agent, seeing to my need of temporary vehicle access, and he keeps me informed about the progress of the repairs on my 2005 Impala.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Awesome service
Everyone should go to this dealership and see Roberto sales and Kevin in finance this is an awesome opportunity to get into a new car of truck of your choice hands down they are their to help when in need of a awesome experience go check them out I would recommend Everyone to come see how helpful these guys are!!!!!






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Tyler was great with working with me.
Tyler was great with working with me. I happen to live 3hrs away I highly recommend him.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Mustafa was a great sales man showed me a car and took
Mustafa was a great sales man showed me a car and took his time with me






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Everyone was great and experience was easy.
Everyone was great and experience was easy. Would recommend them to everyone. Thanks for everything






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Good.
Good. Very knowledgeable representatives. Good service. Job done right the first time. Part availability good. Service writer took time to hear my issue and forwarded for correct diagnosis..






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I got my second car here, and I love it.
I got my second car here, and I love it. Several years ago I bought my first Corolla at this place. Last week I exchanged it with a bigger one, dark blue BMW5. My buying experience went on smoothly and easily. Addison helped me from the moment I called the dealer center to find the right car till I draw out in the one I found optimal in price, look, and just like new condition. Thanks to the trade-in, it was quite affordable. And the paperwork was done by the dealership. Overall, it was really helpful.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
As usual, excellent service when my wife was stranded at
As usual, excellent service when my wife was stranded at the grocery and the van would not start; turned out to be a bad battery. Bob Jaggers , Service Manager at Tom O’Brien North, is the absolute best and got it repaired and back to us the next day!






Vehicle information
Features
Reviews
Good friendly communication.
Good friendly communication.. prompt. Visit service, all questions answered. And follow up calls checking off i needed anything






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I purchased my auto from Indy Auto Man company and wish
I purchased my auto from Indy Auto Man company and wish to share my feedback. Dealing with the car exchange, financial issues, approval, and paperwork had me feeling a bit on edge. But Tyler walked me through the process, and Austin assisted with the financial part. I definitely recommend this place If you are looking for a dealer that understands your needs. I couldn't be happier with my navy blue Jeep Wagoner thanks to the entire team. I want to give a special thank you to Rhianna for making me feel at ease as soon as I walked into the dealership.






Vehicle information
Features
Reviews
Parker Coffey was great at being there to complete the
Parker Coffey was great at being there to complete the sale, even answered my calls and came in on his day off!
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great Service at the Service Department
Amazing service! We?re regular customers for over 10 years. We purchase all new vehicles and get all auto services here at Ray Skillman GMC.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The People Are The Difference At Stoops!
Kind staff like Bob, Jessica and Matt; made my daughter’s first car buying experience a great one. It was low pressure with full transparency and ended with a great deal. Highly recommend!
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Love them!!
I have been going to the west side Ray Skillman service center for over 5 years and my experience has been GREAT!! I will be purchasing another car from this Ray Skillman and their awesome service center team will be servicing that car as well!!
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Used
2018 GMC Sierra 1500 Denali
Vehicle information
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Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2018 GMC Sierra 1500 Base
Vehicle information
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Used
2018 GMC Sierra 1500 Denali
Vehicle information
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Used
2018 GMC Sierra 1500 SLE
Vehicle information
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Used
2018 GMC Sierra 1500 Denali
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $31,060 | 1 Good deal |
2024 GMC Sierra 1500 | $31,810 | 21 Good deals |
2023 GMC Sierra 1500 | $39,600 | 9 Good deals |
2022 GMC Sierra 1500 | $32,574 | 13 Good deals |
2021 GMC Sierra 1500 | $22,901 | 9 Good deals |
2020 GMC Sierra 1500 | $30,900 | 7 Good deals |
2019 GMC Sierra 1500 | $19,600 | 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 $29,266, with pricing starting at $11,995.
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 4.8 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 4.8
94% of drivers recommend this car
- Comfort 4.9
- Interior 4.8
- Performance 4.7
- Value 4.6
- Exterior 4.8
- Reliability 4.8
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.
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Used 2018 GMC Sierra 1500 by body style
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