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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
GMC Sierra 1500 SLT
for sale
near
Olney, MD
- 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
2024 GMC Sierra 1500 SLT
Used
2024 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Glenda and Tony were a great Duo.
Glenda and Tony were a great Duo. Made me laugh and I was comfortable with my purchase
I love it the look the interior mine is a red one and it
I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Hello dear , My name is Cyrus , Ihave just bought a car
Hello dear , My name is Cyrus , Ihave just bought a car fro Mr. Shahin , He was very Honost & trust worthy , everything was as transparent as it Could Get , excellent Price, Reliable service and Good Support , I' give THE 5 STAR ON EVERYTHING , I DO rECOMEND THEM HIGHLY TO EVERY ONE,
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
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Friendly and helpful salesman.
Friendly and helpful salesman. Made sure I understood as much as possible about the car and followed up with me the next day.
Easy purchase experience, would recommend to anyone
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
Used
2016 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great Service, Great Cars ,
Great sales team, Our Sales Rep was Austin. Great guy . He went Above & Beyond to make our experience go smooth. we love our new car. Thank You Austin . We will be back shortly to buy another car.
My 2016 GMC Sierra 1500 SLT All Terrain - Love it!
I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
What a pleasant experience.
What a pleasant experience. My first time financing a vehicle. When going to initially look at the vehicle, I discovered a few issues. Obviously no used car is going to be perfect, nor was I expecting it to be. They told me to come back the next day and the issues would be fixed. I came back and they did in fact fix the car. They are willing to and have went above and beyond.
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
2014 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had the best car-buying experience ever at SMH Auto
I had the best car-buying experience ever at SMH Auto Sales! The entire staff was amazing; friendly, honest, and genuinely helpful from start to finish. They walked me through the process without any pressure or pushy sales tactics, which is rare these days. I felt completely comfortable and confident in my purchase. If you’re looking for a smooth, stress-free car buying experience, I highly recommend SMH Auto Sales!
Great truck, solid engine, comfortable, smooth, and it
Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.
GMC Certified
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Let me start by saying I have the AT4 model with the
Let me start by saying I have the AT4 model with the Duramax 3.0L diesel. I had a 2024 Elevation with the 5.3L V-8 that I bought to pull my 22’ camper. While the Elevation pulled my camper fine it drank the gas like it was on a binge. And with a 26 gallon gas tank it seemed I was filling up every couple of hours. After one trip to Nova Scotia I knew something had to change. I pulled my camper out west to Yellowstone and back through Arizona. It pulled like a champ and fillups were a lot more manageable. Even driving the speed limit out west I still got four to five mpg better than with the gasser. I liked the Elevation but I love the AT4. Way nicer ride and great handling. I get 30 per gallon of diesel on the highway if I drive the speed limit but I got it to tow with. I added a Titian replacement fuel tank so I have 43 gallons instead of the 26 it came with.
Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Nelson is the most wonderful salesman’s great work great
Nelson is the most wonderful salesman’s great work great dealership everyone so nice this is our 5th car with them !!
2019 Sierra SLT X31
I purchased a new 2019 SLT with the X1 package. It has the Red Quartz Tintcoat paint. I usually never leave reviews, but honestly this is the most comfortable, nicest loking truck I've owned , and I've ownwd alot of them. The only issues I've had was the brake software was flawed, took it to the dealer on recall and they installed a new software patch, Other then that I love the styling, performance and the interior is very nice. No regrets
Used
2025 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Shelly is amazing!
Shelly is amazing. I recommend her to everyone I know looking to buy a car! She was very fast friendly and very knowledgeable. I can’t thank her enough for all of her work. I love my car!
I bought this after going to the dealer just to look at
I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Responded very quickly and was always there when I needed
Responded very quickly and was always there when I needed to talk or have a question, gave me good deal
I own a 2023 Sierra 1500 Elevation equipped with the 2.
I own a 2023 Sierra 1500 Elevation equipped with the 2.7L TurboMax, and it’s been outstanding. It currently has 23,000 flawless miles. I’ll admit, I was skeptical of the 2.7 at first, but I jumped in feet-first and have never looked back. Living in Colorado, I regularly tow a 5,000-pound travel trailer through the Rockies with zero performance issues. The truck pulls confidently, handles grades with ease, and still delivers impressive fuel economy—23–24 mpg on the highway and about 18 mpg in town. I couldn’t be happier with this setup. If there is a negative to mention, that would be that after three years of ownership, the black wheels havent grown on me, and Im beginning to hate em. :) Lastly, the mpg while towing drops to 9mpg which is similar to that of a V8. All said, its been a great truck. :)
Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Atmosphere was pleasant and all of the personnel was kind
Atmosphere was pleasant and all of the personnel was kind and professional. Especially my salesman Earl Jones He made the whole process so easy. The other salesmen were very kind also. Koons is the way to go when buying a vehicle.
2022 GMC Sierra SLT 3.0 Duramax
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!
Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Javon, was excellent, he listened to everything that I
Javon, was excellent, he listened to everything that I wanted and was able to identify what was important to me and was able place me in a vehicle that met all my needs.
Beautiful Truck
I bought a 2019 GMC Sierra Elevation. I traded in a FULLY loaded 2015 Sierra SLT, that I was really sad to see go, but the Elevation really sold me on styling and ride quality. I lost a couple high end bells and whistles, but the overall performance and look of the truck make up for it big time!
Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My service advisor, Michael, was the best!
My service advisor, Michael, was the best! I had an inquiry about my car and he took the time to check everything and even test drive it. I then had to get a new battery and was lucky enough to reach Michael again and he got me in and out before I could get settled in the waiting room! He was very patient and personable. Great service! I highly recommend him and this dealership!
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
2024 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great body shop
Stupid accident brought me to see Mike in the body shop. Second time the garage door gouged the hatch. Mike took the car right away fixed it and cleaned it up better than when I dropped it off. Thanks Mike, great job.
2024 GMC sierra 1500 duramax 3.
2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.
Used
2016 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Exceptional!!!
Levon was my salesperson. He was phenomenal!!!! He made the buying process easy. I truly enjoyed working with him. You will truly enjoy your buying experience!!!!
I've had the truck a month, and so far so good!
It's exactly what I was looking for; used but not too used, low miles, good looking but not too many bells and whistles, and didn't need any work.
Used
2016 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Excellent customer service.
Excellent customer service.! Bilingual employees a plus. Sales assisted quickly explained everything. Happy with the purchase thank you.
Big and Beautiful
I am a big fan of cupholders, this will make or break a deal for me. It could use more, but has a sufficient amount for the normal person. Beautiful body style and comfy.
Vehicle information
Features
Reviews
The staff at this dealership was extremely communicative
The staff at this dealership was extremely communicative and helpful. They honestly want to match customers to the right vehicle, and they go to great lengths to make sure their used cars work as well as possible. I certainly would recommend Mahwy Cars Inc. to all my friends.
Great truck with some bad
It is a great truck with great capabilities! although i must say, some of the technology in this car has its low points. Center stack tends to not cooperate during bluetooth pairing and the headlights have poor illumination to the point i had to retrofit LED bulbs for better visibility. Overall very comfortable ride and smooth drive
Vehicle information
Features
Reviews
Prompt, friendly and professional service.
Prompt, friendly and professional service.. Invitation to visit was very friendly and didn't Email too much 😁
Bad paint
They have very bad paint peeling problem, they also have a hesitation at take off , good ride ,good interior comfort , fair fuel mileage fair power, we have two in the family, I am very disappointed in the paint peeling issue,I have a 2005 2500 paint is good.
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I recently purchased a 2025 Kia Sportage Prestige, and I
I recently purchased a 2025 Kia Sportage Prestige, and I couldn't be more pleased with the exceptional service I received from Donny. His customer service skills were outsanding-he actively listened, was incredibly knowledgeable about the vehicle, and kept me well-informed throughout the entire process. This is the third car I've purchased from this location, and I was intially unsure if the experience would match the high standards set by my former salesman who is no longer there. Donny reassured me that I was in good hands, but he was wrong-I was in great hands. I had considered other brands and wasn't certain I would stay with Kia, but Donny's patience, professionalism, and thorough answers to my (many) questions made all the difference. He was truly phenomenal, and the overall sales experience was marvelous thanks to him. Donny's outstanding service is what ultimately sealed the deal. Highly recommend asking for him if you're in the market for a vehicle! I am writing to follow up on my previous message regarding my concerns with the Finance Department. I am pleased to share that since then, the team at King Kia of Laurel has gone above and beyond to address my concerns and turn my experience into a positive one. I would especially like to recognize Larry, Carlos Mendez, and Matt Aglio for their extraordinary efforts. Their professionalism, responsiveness, and genuine commitment to customer satisfaction were truly impressive. Thanks to their support, I now feel confident and valued as a customer. I appreciate the time and care taken to ensure my concerns were resolved and that my experience ended on such a high note.
Awsome
Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!
Certified
2020 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Wayne is great!
Wayne is great! Ask for him. I love this dealership, Easy and fast. Will recommend this place to my friends and family.
Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
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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.
**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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GMC Sierra 1500 by trim
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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.