New and used 2025 GMC Sierra 1500 Denali trucks for sale near McCullom Lake, IL

Jarvis was an absolute rockstar! He went into all the nitty-gritty details of the numbers, making the daunting task of buying a car a breeze. So happy with my purchase of my Denali 1500, and couldn’t have been as happy without Jarvis’s assistance!

I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.

We purchased a used car from Robert and he was extremely respectful and went out of his way to be helpful. We needed to get a car trailer to get the car back to Louisville Kentucky. He was able to find one and reserve it for us. Everyone at the dealership was very nice and helpful. We enjoyed dealing with everyone. We will always remember the great service and friendly staff. We will remember them if we make any future car purchases.

I arrived late to pick up my vehicle. Fortunately one of the Service writers noticed my arrival as he was leaving for the night. He came back to the dealership and secured my vehicle and billing. Great service.

Sam is truly amazing! Sam has sold vehicles to my Husband, Son and now I'm purchasing from Sam! If you are in the market for a new or pre-loved vehicle go check out Woody I Gurnee and make sure to ask for Sam or Jarvis

Bill is an awesome salesman!!! He is so caring and really puts his time in to helping as much as he can!

Jamie was incredible to work with! I had a 2025 Ram RebelX that I absolutely hated and he worked with me on trading in for a GMC Sierra Elevation. They had exactly what I was looking for, plus some! We will be back!

Mike was one of the best salesman out there took great care of me 5 stars

Easy to schedule service. They shuttled me to my home and back and were super fast and on time!

They are always kind and great service! They get my car in and out quickly!

Thank you so much for a great experience. Chad, the salesman, that I worked with was great. I was a bit nervous before coming in this morning due to my daughter's experience with a salesman at the Kunes next door to this one. But it quickly became a great visit. He was patient and did everything he could so I could drive the car off the lot today. Everyone was very helpful and friendly. He also promised to get me a manual for the Hyundai Tuscon I bought that is missing. I hope he keeps that promise. The salesman, Roel, who was the one next door that my daughter had was not so good. He was demanding and was not very truthful. I believe that he would sell anything or say anything just to make a sale. He demanded that I get in there to cosign for my daughter for a car that was way over her means. Cosigning for someone is a very huge thing and should never be demanded even by a salesman.

Thank you to the service team for your getting me all set for my roadtrip!

Could not have asked for a better experience. The salesman was very helpful and waked us thru everything in a way we could understand. it was a wonderful experience and would recommend this dealership to anyone looking for a new car.

I have brought my vehicle in for every oil change I have needed. Always courteous and professional, my car gets a diagnostic check every time and is freshly washed. I like that the Service Department send out coupons, and making an appointment is easy online or with a phone call.

We just had a very positive and smooth interaction and used car purchase with Castle Chevrolet. We were shopping for a replacement Chevy Trax for my 86 year old mother in law and I found one on Castle's web site that was a perfect fit for her. I phoned the dealer to let them know we would be coming in. We were met by Jeff Vicari who handles our entire transaction and sale in a professional, courteous and respectful manner. My typical opinion of dealing with buying a car normally isn't very favorable but this experience was awesome. We did have a minor issue with the loan paperwork but it was our fault, I contacted Jerome Witt ( Sales Manager) who said he would fix the problem - low and behold, it was fixed within the hour. My thanks to both of these guys for making the transaction positive!

Frank was friendly and helpful. He look up my records to make sure I was not receiving and paying for unnecessary service. He provided a coupon.

Kim was incredible in helping me get my repairs covered by my extended warranty! Details of service were provided and car was ready when needed.

Anytime I call and let them know that there’s a problem with my vehicle I bring it in and they take care of it. Found out yesterday that there’s something wrong with my transmission. Thank God for their warranties. I have a special needs son and I need a bigger vehicle and because of them I have that bigger vehicle.

I have to say that Ryan and the staff at Napleton sure know what they are doing. They were quick to answer any questions I had and took away the fear of buying a car! They were friendly and knowledgeable and NOT pushy like most car salesmen. I walked away with a vehicle that I love and a great experience!! Thank you Ryan for all your help!!

This is an update to previous review. I bought the cerma plate protection package but was unhappy with the interior. I took it back and it turned out that nobody even worked on the interior. They did it while I waited. If I hadn't taken it back I would have paid for something I didn't get. The service dept. was a little upset with my mood and attitude, but when they found out no-one had even worked on my interior they were very apologetic and nice about it and thanked me for bringing it to they're attention. I don't like dealers and this is a perfect example of why.