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Used
2018 GMC Sierra 1500 SLE trucks
for sale
near me
- 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 SLE
Vehicle information
Features
Reviews
Just to let you guys know we’re very pleased with the
Just to let you guys know we’re very pleased with the F150 Larry. We got with 214. Everybody was so courteous and kind and helped us out to get this vehicle. I appreciate it very much. I tried to make out a survey and I couldn’t get on it so I’m just letting you know this way thank you very much. I will try to get you some more customers.
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 SLE
Vehicle information
Features
Reviews
We drove 4.
We drove 4.5 hours to Findlay CDJR. Spoke to Kevin in sales. We agreed on a price for the Chevy Blazer we had discussed at their dealership. Kevin related that he was not going to be at the dealership when we arrived later but to see another sales associate by the name of Adrian. Kevin explained that he would inform Adrian of the details that we had discussed. We got there the Blazer was washed and polished and was Ready for delivery. Adrian honored the deal we had reached earlier. We left very happy and very impressed by Findlay CDJR!
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 SLE
Vehicle information
Features
Reviews
new tires
I was very satisfied with the service and the friendly people who helped me. Very customer oriented facility. Knowledgeable and competent staff. No further requests or recommendations.
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 SLE
Vehicle information
Features
Reviews
Although I didn't end up purchasing a car with them.
Although I didn't end up purchasing a car with them. Their customer service is amazing!
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 SLE
Vehicle information
Features
Reviews
Rudy the truck drives super smooth and the family loves
Rudy the truck drives super smooth and the family loves it. It was a nice little find that I had at Hgreg.
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
Christian helped me out, I didnt end up buying anything
Christian helped me out, I didnt end up buying anything but this is the best dealership experience ive had!
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Iain is the best service adviser in the business.
Iain is the best service adviser in the business. He and his team always take good care of my car needs.
Vehicle information
Features
Reviews
Excellent overall experience!
Excellent overall experience! Brian did a fantastic job getting everything arranged. I highly recommend Mills
Vehicle information
Features
Reviews
I didn't buy anything from them but they were very fast
I didn't buy anything from them but they were very fast in a response
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
I Didn't end up getting this car.
I Didn't end up getting this car. Overall Great customer service and follow through :)
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
I received the best customer service from Destiny she
I received the best customer service from Destiny she made car buying easy and she helped me with all the paperwork .. I definitely give her a 5 star and will recommend her to any one that’s looking to buy a nice and affordable car…
Used
2018 GMC Sierra 1500 4WD Crew Cab 143.5" SLE
Vehicle information
Features
Reviews
Very pleasant environment overall.
Very pleasant environment overall. The whole process, from the start to driving away with my car, went very smoothly. Lovely, friendly staff, and I’m absolutely delighted with my purchase. Highly recommended your choice autos waukegan.
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
They were amazing!
They were amazing! Great dealership from the communication, hospitality, pricing. All staff members were fabulous. I would highly recommend purchasing from them again. Tammy Stick, Fargo, ND
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
I have been extremely impressed and amazed by the
I have been extremely impressed and amazed by the integrity demonstrated by Matt Tucker. The entire process of purchasing a vehicle was conducted remotely—from my home in Texas while Matt is in Alabama—via phone, text, and email. The transaction was seamless: the truck was shipped and arrived in perfect condition, and all title documentation was correct. What truly impressed me was the follow-through. A week after the sale was finalized, the truck developed a major mechanical issue. Without any haggling or avoidance ("not my problem"), Matt immediately took full responsibility and ensured the problem was resolved, simply by doing the right thing. I highly recommend his services and give this experience five stars, plus a few more if possible.
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Hello everyone!
Hello everyone!!! We came in planning to buy one car for my son… and somehow walked out with two! Wow — what an amazing experience! Thank you for making the entire process so smooth, enjoyable, and stress-free. Your professionalism, honesty, and the way you took care of us truly made the difference. We never felt pressured — just supported and well guided every step of the way. We are so grateful for your help and for the incredible service you provided. You turned what could have been a simple purchase into a memorable experience for our family. Thank you again! John & Rosa Alexander
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Had a oil change and tire rotation on my Toyota truck and
Had a oil change and tire rotation on my Toyota truck and the service I received was outstanding. The service department kept me informed on what was going on and asked before doing anything extra. Truck was clean inside and out when handed back to me. I would highly recommend DeeryBrothers service department and appreciate the great service I received.
Vehicle information
Features
Used
2018 GMC Sierra 1500 SLE
Vehicle information
Features
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 SLE | 5 Good deals | |
| 2025 GMC Sierra 1500 SLE | $43,930 | 9 Great deals |
| 2024 GMC Sierra 1500 SLE | $39,585 | 34 Great deals |
| 2023 GMC Sierra 1500 SLE | $36,359 | 29 Great deals |
| 2022 GMC Sierra 1500 SLE | $33,422 | 11 Great deals |
| 2021 GMC Sierra 1500 SLE | $30,187 | 24 Great deals |
| 2020 GMC Sierra 1500 SLE | $26,947 | 22 Great deals |
| 2019 GMC Sierra 1500 SLE | $25,625 | 27 Great deals |
| 2017 GMC Sierra 1500 SLE | $21,362 | 25 Great deals |
About the 2018 GMC Sierra 1500 SLE
SLE shown.
- 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 SLE cost?
The 2018 GMC Sierra 1500 SLE price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2018 Sierra 1500 SLE is $23,129, with pricing starting at $12,967.
What is the MPG of the 2018 GMC Sierra 1500 SLE?
The 2018 GMC Sierra 1500 SLE 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 options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2018 GMC Sierra 1500 SLE?
The 2018 GMC Sierra 1500 SLE compares to and/or competes against the following vehicles:
Is the 2018 GMC Sierra 1500 SLE 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.
93% of drivers recommend this car
- Comfort
- 4.9
- Interior
- 4.8
- Performance
- 4.7
- Value
- 4.6
- Exterior
- 4.8
- Reliability
- 4.7
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) |
*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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2018 SLT
69 Great Deals out of 509 listings starting at $14,750
-
GMC Sierra 1500 2018 Denali
22 Great Deals out of 198 listings starting at $18,998
-
GMC Sierra 1500 2018 Base
11 Great Deals out of 70 listings starting at $9,667
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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.