Used GMC cars for sale near Poolesville, MD under $40,000

In October 2020 I purchased my 2020 Ford Explorer ST at Koons Sterling Ford and have loved every minute of driving it. I've had it in for regular maintenance and recalls at the dealership but just recently on September 26, 2025, I had my best experience when I brought my Explorer in for a new battery. I had the pleasure of having Bradley Cadenas as my service rep and was very impressed with his professionalism and his outstanding product knowledge regarding my Ford Explorer. I wasn't aware of the FordPass reward points I had accumulated, and Bradley was very helpful in helping me manage these and applying them towards the cost of the new battery and related service work. I felt like I got the "red carpet" treatment and look forward to working with Bradley in the future--he is a credit to the dealership and particularly to the service department. Keep up the good work!

I bought this 2017 Tahoe w LT trim new. Have 60K on it now and have had no issues with it. We are not towing with it or doing high speed racing so we find the 5.3L Motor is smooth and quiet (and have not had any lifter issues which others have reported). Transmission and suspension also smooth. We keep Michelins on all our vehicles and have found this Tahoe very quiet and comfortable for road trips with 4-6 people and luggage. The LT trim pkg deleted some comfort items I wish I had (like heated steering wheel) but it still is pretty much leather-and-loaded so it was a good value at the time. I have had Suburbans for 35yrs before purchasing this Tahoe and I will probably go back to a Suburban for the extra cargo space when I trade this Tahoe in. But this has been a nice and reliable vehicle for us. No complaints.

Repairs were made in a very timely manner, extremely happy with my service adviser Drew, and the technician that made the repairs. Everyone at Criswell was friendly, and the facility was very clean.

Nice styling,interior has a new design dash which is beautiful and convenient,safety features and cameras are great and easy to used and the active cruise is awesome.

I was interested in a Nissan NV 2500. Viewing several of these vehicles on cars.com and other sites. I decided to make the trip to Trust Auto in Maryland from West Virginia. About a 4 1/2 hour trip. I had talked to David on the phone to make sure the Nissan was still available and explained when I could be there to look over the vehicle. We made the trip in good time only running into one delay. Upon meeting David he brought the vehicle up to the front of the dealership and told us to inspect it, which is what we did. I had two top mechanic with me. While we knew the vehicle had been in an accident, the repair work was very well done on found a few bolts missing. One in the valance and the other from the inner fender. This could have been from the accident or just from being a service vehicle. A little over 94,000 miles on it. The detail shop did a great job on their work. Very chean for sure. After running the computer test, we took the Nissan NV for a test drive. It did not disappoint. Extremely happy with everything we saw and felt during the test drive. Steering was solid and tracked well. No pull to either side while driving. Throttle response was perfect as well as the braking system. The comfort of the Nissan NV was Avery pleasant surprise. The ride was almost as good as my Lincoln MKZ, almost.😎 Much like a 2006 GMC dually I had in 2007. Very nice. When returning to the dealership myself and the two mechanics talked things over and decided to go to the next step. After a little negotiation we settled on a fair price and made the purchase. David was very kind to us and I feel like we got a great deal. We finished the paperwork and was ready to leave but we were blocked in by another vehicle. I backed back into the parking spot when one of the ladies that worked there said she would move the vehicle so we could be on our way. She came back within a few minutes moved the vehicle and with a big beautiful smile waved goodbye to us as we left. That truly made my day😇. Trust Auto in my opinion is a great dealership and when I need another vehicle, they will be the first ones I will go to. Thank you to everyone who was so kind to us while we were there and may GOD bless everyone of them 🙏✝️🙏 Jon

This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.

Really helpful dealer thanks for everything! Recommend this dealer if having a hard time deciding on a vehicle many different options came out with another vehicle I was not thinking about appreciate it.

Shaky experience. Very slow response and lack of communication from my service rep, but the service manager ensured that it was a pleasant experience. All of the employees were pleasant and professional.

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 !

They were very nice to work with I had no problems every thing was great an car was delivered at the right time the wife was happy, beautiful car thank you.

We drove two states over to McKenzie Buick GMC in Milton, FL to meet with Nick and make a purchase on our new Yukon Denali. Customer service was top notch. We were going for their 2019 Yukon Denali to replace a 2008 Tahoe LTZ. We are very pleased with the vehicle. The upgrades are wonderful. Love the cooling seats, the wifi, the HUD and even days after our purchase they have reached out to check on how we were and mailed us a small gift that meant so much. We will definitely use them again if they ever have what we’re looking for on a future purchase. - Brandon Howell 2019 Yukon Denali

Went recently to look at a Porsche 911. Salesman “ Shah Khalid” was very helpful and knowledgeable about the car I was looking at. We agreed to a price, etc. At the last minute I backed out due to a family illness issue which caused LOCO to loose a sale to the second person looking at the car. Totally my fault. Got things worked out, including a refund of my deposit. Car ultimately got sold. Hope to revisit all of this with Shah when things calm down at my house, and he finds me another @ cream puff”

Excellent and reliable, only thing buyers have to do is buy a AFM disabler that you can stick into OBD2 port to avoid lifter failure (longer story, nobody wants a V8 to run in V4)

My problem was with the AI contact point at King. Stupid me, I thought Olivia King was a person, and I emailed "her" several times with requests. Before I went in, cars.com asked me to review "her" and the email included a photo of a woman, again making me think I was dealing with a human. When I went in, I asked to speak with her, and was finally told she didn't exist. But was I embarrassed and did I feel stupid! It was very deceptive. And this is not how you want a customer to feel when you're selling something. You need to make it clear up front that the email contact is an AI contact, and any salesperson will be there to help at appointment time. Other than that, it was a good experience. King even allowed the car to be driven 33 miles to my mechanic for an inspection. That's extraordinary. The car was in good shape, and we closed after returning from the inspection.

I purchased to replace a 2017 Tahoe that I loved. Love this vehicle even more. Magnetic ride control, additional safety features the Tahoe did not have are great. Heated steering wheel a great feature. Heated AND cooled seats, will never be without again. Additional power of the Denali 6.2L vs. the 5.3L engine in the Tahoe is impressive. Bose sound system is outstanding.

Hands down, the best dealership in the United States! From the moment I walked through the doors, I knew I was in a place that truly values its customers. The level of professionalism, warmth, and genuine care displayed by the staff is unmatched. This isn't just a dealership, it's an experience. What sets this team apart is its extraordinary customer service. Every interaction feels personal, as if you're reconnecting with old friends rather than meeting someone for the first time. Several team members made me feel like they'd known me for years, remembering small details and going out of their way to ensure I felt comfortable and valued. The staff is not only knowledgeable and efficient, but also incredibly kind and approachable. Whether you're buying your first car or returning for service, they treat you with the same level of respect and enthusiasm. It's clear that this team is passionate about what they do—and it shows in every handshake, every smile, and every follow-up call. To say they have an excellent team would be an understatement. They’ve built a culture of excellence that radiates through every department. If you're looking for a dealership that combines top-tier service, heartfelt hospitality, and a commitment to excellence, look no further. This is the gold standard.

This is a really nice vehicle for being used. It exceeds our expectations for comfort and performance. We enjoy driving it both in town and out in the country.

Buying a vehicle at Sport Chevrolet is a very pleasant experience. The sales team are professional, courteous, and friendly. I would recommend this dealership.

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!

Found a vehicle on Truecar that I liked & went to dealership to check it out. Car was super clean, detailed & took for a test drive. Had a car to possibly trade & they gave me a fair price. A no hassle, stress free transaction from the minute we walked into the dealership till the minute we drove away in a newer SUV. Glen Carter was very professional, knowledgeable and easy going. Talked with Finance, Bianca, and signed some papers & was out the door. Highly recommend this dealer ship!!

2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...

they responded quickly and I purchased the car I had to wait for it but worth the wait shout out to Craig and Haseeb for helping me I would buy from them again even though I was 4 hours away. My trust is a hard thing to earn but they did. I appreciate everybody at the dealership.

The Yukon checked all of my needs, I have plenty of room for my children and my Great Danes. I enjoy driving the Yukon and how it handles, overall love this vehicle!

Great communication on an unusual problem with steering wheel heater that was too hot. Dealership coordinated with GM tech support to resolve snd replaced steering wheel

This truck is the definition of mans best friend truly so enjoyable to drive and perfect for the family . My kids and their friends think I’m the coolest dad when I pick them up in this beast

I live in PA and did online buying and delivery. Guillermo was responsive and helpful. The gents who delivered the vehicle were very nice. Thank you to all who was involved.

I have enjoyed my vehicle. It is comfortable and drives very well. I like the color also. It is very roomy, takes off fast and the safety features are very beneficial.

Really friendly and honest the two men that work there. Very competitive prices and not pushy at all. Very good experience overall! Love my 2106 Tacoma TRD Sport

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.

Very neat and clean dealer. have free coffee and other drinks for customer. people who work there are nice too. no regrets at all.

This Yukon has all the bells and whistles. It is a joy to drive, the drivers area is like a cockpit with everything at your fingertips.

employees are very professional. they dose great service and very fast processing. i rely enjoy shopping from them.

Smooth ride strong motor decent gas mileage inside cab is loaded and very tastefully done along w easy access to knobs. Plenty of room. In back seat ! Aclassy looking Truck with a tacky looking owner!!

I bought a vehicle from Auto Expo for my son and he loves it. Great car for a reasonable price and outstanding customer service and great experience overall.

The truck Handel's well. Sluggish when in second gear and the transmission thumps mostly when shifting down. Started about 40k. The ride is nice and comfy.

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 handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.

While visiting our daughter from out of town my husband was looking for a truck. With two days remaining before we were to leave to come back to NE my husband found a truck at Car Mart that checked all the boxes. He spoke with Jimmy and confirmed some information and we went for a test drive. There was a little rotor noise and the two rear tires were quite worn. When we let Jimmy know about those concerns he had it pulled into their shop, they fixed the rotor and put two new tires on the vehicle on the spot. We bought it and our real "test drive" was our 1200 mile return trip to Nebraska. Our experience was wonderful and I would recommend CarMart, and Jimmy in particular to anyone shopping in the Manassas area.

This car is a fabulous car for family and traveling. It is roomy, has capacity for kids and sports gear, and is safe. I have been rear ended twice in a Yukon and there was minimal damage to the Yukon and extensive damage to the other vehicles.