Used GMC Sierra 2500 Denali for sale near Gresham Park, GA

Nate always provides superior customer service! My vehicle was serviced in a timely and professional manner. Thanks again for all that you do. I always appreciate what you do.

This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.

Very helpful, eager to help me find a car for my needs . Prompt and knowledgeable

One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.

Just had my 60,000 mi. Service and all went well! They also repaired a rain leak I found after the last storm. I?ve bought several autos from Jim Ellis and always have been pleased with sales and service . Ted and Harley in the Buick service dept .are the best!! I would recommend this dealer.

I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.

Very pleased with service I received. It honest, helpful and answered my question and concerns. Greg was able to satisfy what I needed and I would recommend purchasing a car from this dealership.

I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.

This truck is everything I wanted! GMC, 4x4, Lifted, Low milage. It's going to be great for my hunting and 4 wheeling! I love it!

Great experience with Hennessy of Southlake. Frank Parker was awesome and represented the dealership well. I flew in from Memphis, was picked up from the airport and everything about the car was as represented online.

Love everything about this Duramax Denali except the fuel mileage. 13-14 Mpg tops when not towing. Bought truck cause previous was stolen. Wish I still had my 6.2 High Country!

What a gorgeous truck, runs good, sounds good and has all of the amenities I need although I am looking forward to their next interior upgrade.

I worked with Brett and Daniel. They both were extremely helpful and informative. Although I did not end up purchasing a vehicle here, they were professional and genuinely wanted to help me find what was best for me. Highly recommend this dealership.

I have purchased a number of vehicles from John Thornton Chevrolet and one from John Thornton Cadillac/GMC and have had great experiences in every case. They are the only dealership I use for service for my Georgia based cars.

So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.

here at Gravity you are in good hands. rest assured you will drive home with your new vehicle . adam in sales is who you should look for indeed

I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!

Service department is awesome!! Well trained team. Came in for general service, Balance, Rotate, Alignment and a Oil change. I have been a customer for years..

I have now worked with Bryan, Tim Burton, and Drew and they have all been amazing!!!! They were very knowledgeable and helped my find the vehicles that i wanted and made the buying process an easy and smooth process. If you need a "new to you" car go see any of the three of them and they will help you out!!!!

I came from Columbia SC to look at a Jeep Sahara I saw online. Greg greeted us at the door and got us into a test drive and then purchasing the vehicle without any issues. He was friendly, efficient, and made my car buying experience a breeze. I would recommend ALM Marietta to friends and family, and ask for Greg!!!

Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else

Always very good service. Take very good care of my vehicle

Took all the time I needed to make sure I got the best truck I could get for my budget.

This is the first diesel I have owned. The power is amazing and I really like the room inside the cab. This truck is a beast... Love it!

Excellent choices to choose from and very easy to buy and sell your next car … and and the site has great options at the tip of your fingers thank you cars.com for a great experience…

I purchased and have had my vehicle serviced by the same dealership for the past 4 years and have always received A-1 service ALL AROUND! TERRY CULLEN CHEVROLET no one can can beat them!

Very nice and knowledgeable one of the best experience I’ve ever had at a dealership, hands-down

Convenient time and good customer service. Discussed with me and offer suggestion and alternatives for fix needed things in the car. Detailed with what needs to be one immediately.