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
2018 GMC Sierra 1500 trucks
for sale
near
Heritage Lake, 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.
**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
Aaron and Gerard were great to work with.
Aaron and Gerard were great to work with. Aaron kept me out to speed with great communication throughout the process. They both did a great job at getting me a great deal on a used vehicle.
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
Our Salesman Johnny was awesome to deal with?
Our Salesman Johnny was awesome to deal with? although it was almost a 4 hour drive (1 way) for us . It was well worth it .. no one around us had the vehicle we wanted
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
Ray Skillman Hyundai
This was the best car buying experience I have ever had!! Sly was my salesman and he was AWESOME!! I Will definitely recommend this dealership to everyone I know!!
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 SLT
Vehicle information
Features
Reviews
Fast and efficient!
Fast and efficient!!! Friendly staff! Clean facilities , knowledge mechanics! Always willing to answer my questions!
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
Honesty, service, communication
We ordered a new Maverick last year & Steve McCauley kept us informed the whole step of the way even though we are out of state buyers. We moved during the process which caused some issue with a rebate but Steve McCauley, Dustin McAfee & Brianna McCauley were on the spot jumping through hoops to make sure everything went smoothly. We are ecstatic with the whole process. Thank you Steve McCauley, Dustin McAfee & Brianna McCauley for doing all the extras to make this a smooth process.
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 Denali
Vehicle information
Features
Reviews
Enjoyed the team and my Salesman, Niko, went above and
Enjoyed the team and my Salesman, Niko, went above and beyond to deliver my car to me an hour away. For a brand new car I thought it would be cleaner when I received it and theres a mark on the driver’s side of the windshield that I can’t get off and the dealer doesn’t seem to be in a hurry to help me.






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I was having trouble with monitor showing a problem with
I was having trouble with monitor showing a problem with 1 of my tire sensors & service department diagnosed the problem quickly & was able to repair without my having to make another appointment saving me making another trip for repairs. They explained what needed to be done & so far everything is working fine.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Shout out to Stas Mateev at Rayskillman Buick GMC, he was
Shout out to Stas Mateev at Rayskillman Buick GMC, he was the absolute BEST!!! He told me he was going to get me the suv I wanted & he did exactly what he said!!! & I wasn?t there all day !!! He?s the man ????






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This is a great place for any vehicle service.
This is a great place for any vehicle service. Always call before they start to make repairs and let you know the cost.






Used
2018 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Great people ,very professional and helpful!
Great people ,very professional and helpful!!i was very pleased ! My car is going good now,thanks!






Used
2018 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I enjoyed my experience with the salesman that I worked
I enjoyed my experience with the salesman that I worked with. He was very helpful and nice. I ended up purchasing a vehicle but I later realized that the price was more than what it was advertised for and I was told, the windshield wipers needed replaced right away, and I was told they would put gas in it for me. I traded in my vehicle with almost 3/4 tank of diesel gas. I was given barely a 1/4 tank of gas which didn’t even get me home. Rather disappointed in those details. Andy Mohr sells enough vehicles (25 the weekend I bought mine), that attention to the details should be their priority!






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Vic took his time with us, did not rush, and had an
Vic took his time with us, did not rush, and had an answer for all of the questions we, my dad and I, had. He was patient and understand my needs. He did not try to pressure or convince us into buying anything. But I fell in love with the red Audi A4 2018. I was in and out in no time and the paperwork process was swift and simple. I couldn’t be happier.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Oil change and tire rotation.
Oil change and tire rotation. John Bray is the type of employee that every company wants. He is very polite, professional and very customer oriented.
There are 19 matching cars close to your year range.






Used
2019 GMC Sierra 1500 SLE
Vehicle information
Features






Certified
2019 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2017 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2017 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2017 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Certified
2019 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2016 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $40,985 | |
2025 GMC Sierra 1500 | $33,140 | |
2024 GMC Sierra 1500 | $36,849 | 13 Good deals |
2023 GMC Sierra 1500 | $35,592 | 7 Good deals |
2021 GMC Sierra 1500 | $29,875 | 6 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 $28,873, with pricing starting at $9,967.
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.
Similar Cars
-
Ford F-150 for sale
6 Great Deals out of 21 listings starting at $14,809
Research the 2018 GMC Sierra 1500
Compare the 2018 GMC Sierra 1500
- ${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}
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.
${award_blurb}
${award_two_blurb}