Used GMC Sierra 2500 trucks for sale near Ontario, CA

The service team always makes sure we are well taken care of. Shout out to Fernando Trejo and Luis Mejia for continuously providing an ?over the top? customer service experience whenever I bring my vehicle in for scheduled maintenance.

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.

Had to get some warranty repairs done. Jeff took care of all the processing and we were informed about the progress from start to finish. Professional, courteous customer service.

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 was the best service I have ever had, correct estimate and done on time. Service Rep was very professional and polite I have no complaints.

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.

sale associates very helpful during whole process. very pleased with purchase and customer service. Second auto bought from carmax.

Everyone at Car Castle is wonderful including everyone in Management. Eddie in management was wonderful and assisted us with all the process. Come see them you won't be disappointed! 👍

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.

My husband and I unexpectedly bought our new VW Atlas the day we went for an oil change on our Mazda CX9. Steve was very friendly, helpful and without pressuring us. Armando was also very helpful, leaving us with a sense of great customer service.

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!

The entire process of working with Zora was incredibly communicative, accommodating, and easy. He even stayed late at the dealership since I had to fly in. He took good care of us and made sure the vehicle I purchased had everything I needed and did a double-check before we left the dealership. Thank you for everything!

Love this vehicle. I feel safe transporting my grand daughters. It is reliable. It?s great on highway and city driving. I would recommend a GMC

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!

Keshan and Hamsa were Great through the whole process fast and quick will definitely buy again

My online salesman Xavier was great! I live 2,000 miles away, and the whole transaction was done on my phone, and within 24 hours. Having to come up with a shipping company was the hardest part of the process.

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.

Always well taken care of by Dan in the service department. He is honest and transparent about services needed for my car. Been going to him for years and trust his opinion. He feels like part of the family! Thank you for being you Dan! Always amazing

Overall, I had a good experience purchasing my vehicle here. Thank you to Wes for being so kind & helpful!

Jack in the service department came through for me in getting my front and back brakes done in a timely matter. Always responded to my calls. Awesome customer service.

We were helped by Wes and Marvin, they are great people with a very good personality as they were very helpful going over all the details and questions we had A+ service

Kris was great! Had a lot of patience with me and definitely will recommend him for your next car purchase.

I've owned my truck for nine years now it is never once let me down. I'm about to put my first set a tires on it and brakes other than that I don't plan on getting rid of it it's never let me down and after reading all the other reviews it makes me realize they don't make them like they used to as they used too!

Quick friendly service. Jay was Awesome! My truck was fixed fast and didn't coat much. Appreciate all of you guys. ??love yall yall the best

The experience was great. Worked the numbers over the phone and nothing changed when I arrived onsite. They value creating long term customers.

Ryan truly did his best to work with me, because of Ryan I would definitely go back to this dealership and purchase another vehicle. He truly did his best to keep me happy with the amount of my trade in and with the amount of the purchase price of the vehicle I purchased from him. Met my payment at what I was looking to pay , he truly made me and my 2 boys feel welcomed and I truly appreciate you Ryan for all of our deal. Thank you