Used GMC Sierra 3500 trucks for sale near Denver, CO

This dealership price protected my purchase, honoring the price listed at time of reservation. the process was smooth and were able to complete the purchase within a few hours. taylor know was sales person!

Great vehicle for pulling my fifth wheel RV which weighs around 20,000 pounds. This dually truck pulls the RV very nicely without any significant strain on the engine or the transmission. However, like all of today's diesel engines there are 4 different system of emissions on this truck. Each one of these emission systems has sensors associated with them. If one of these sensors goes bad the truck will not perform optimally and sometimes it will go into the limp mode. Unfortunately this is not unique to GMC trucks. All manufacturers are battling this system. Also, I have had to take the truck to the dealer for computer upgrades in order to improve performance. I wish these upgrades could be performed on line (through wifi or with my own phone service). It sure would make things a lot simpler and improve the through put of the dealers who are already strained because of the limited number of available diesel mechanics.

Fantastic experience buying a used car here. Marc and Chris were super nice and down to earth. Extremely considerate and reasonable as well. By far the easiest used car purchasing experience I’ve ever had. Highly recommended.

Super happy with our decision with on our of our new truck purchase. It is exactly what we needed. It has so far been a wonderful vehicle.

I was referred to Dan by a friend of a friend. I didn't really even know who I was calling until I heard the last name - Berkenkotter. He was very kind and friendly and told me that he or his staff could bring my 2010 Heartland North Trail Travel Trailer in from the storage lot about 15 miles away and then they would make me an offer or they could put it on consignment for me. I took the offer, because I'd done my research and I knew it was a reasonable offer. Very nice staff, it's got the feel of an old time family business where deals are made with handshakes. Very happy!

Very helpful staff, great vehicles. Very patient with us. Fair trade in value given to us

Comfort, ease of driving, style, convenient for work and we LOVE the tailgate! Great for towing our heavy fifth wheel and our dogs are riding in style!!

Kyi at Castle Rock Chevrolet is the best in the business. If I could give more than 5 stars I would. I came to Castle Rock Chevrolet from Montana carrying the weight of a terrible deal I’d been locked into by Mike Maroone Chevrolet. I was horribly upside down on my previous vehicle, thanks to a deal that should never have been approved in the first place. It felt hopeless… until I connected with Kyi. Kyi didn’t just help — he changed everything. He took the time to understand my situation, walked me through every option with honesty and clarity, and treated me like a person, not a number. Thanks to his determination, professionalism, and integrity, I am now driving a 2017 Cadillac Escalade Premium Luxury — a vehicle I absolutely love, and a deal that finally makes sense for me and my family. What makes this even more impressive is that we did the entire deal remotely from Montana. Kyi made it unbelievably easy and stress-free — constant communication, no surprises, and everything was handled with total transparency. It was hands down the most respectful and seamless car-buying experience I’ve ever had. I also want to give credit to Luke, the desk manager, who was the one that made the numbers work. He took a tough situation and made the deal make sense — without cutting corners or playing games. It was clear he genuinely wanted to help, and I’m incredibly grateful for the effort he put in behind the scenes. Kyi and Luke are the kind of team members who elevate the entire Castle Rock Chevrolet experience. People from any state should be buying their cars here. I would do it all over again in a heartbeat. If you’re buying a car from Castle Rock Chevrolet, do yourself a favor — ask for Kyi. You’ll be glad you did. Thank you both — you’ve earned customers for life.

Friendly and knowledgeable staff. Thank you for your help and we love our new car!

I received a great experience at AutoNation West. My sales associate was very professional, knowledgeable, and friendly. The whole sales team were very kind. I would recommend the dealership to family and friends.

The Texas Edition combined with the X31 package and premium SLT makes a very nice combination. The Sierra 3500HD gives you a luxury interior and ride with all the capabilities of a great pulling truck. The Duramax is quiet yet powerful. It is no doubt the best of trucks for 2020.

Awesome buying experience! Vinny Mahoney the salesman was great. He made the buying experience very nice. Continues to check-in with me to see if I need anything else or if I just have any additional questions. Chris Tucker the sales manager was a pleasure to work with and was diligent and patient in helping me get all the qualified discounts. Highly recommended this dealership.

This review is for a two week old truck. I have been trying to get a 3500HD AT4, gas engine, 8 foot bed, 5th wheel prep, in blue for over a year (almost 2). My dealer finally received an allocation and I was off for the build!! However, when my build order was sent to me the color had defaulted to black (blue was discontinued for 2024) and the only way to change it was to cancel and start over.....so black it is!! The truck is gorgeous and much larger than I thought! I am pleased with both exterior styling and the 2024 interior refesh. My only complaint is the seats, they are a bit firm.....still comfy....but firm. The GM sunroof is small, so small I passed on the option. Mechanically this truck is a pretty sound design. Another 50hp for the 6.6L gas engine would be nice, but 401hp is pretty decent. A PTO offering in the up level trims would be nice, as would a larger/dual fuel tank option is needed (GM is the only one that doesn't offer one), and a factory level in the front, and while I am dreaming a front locking differential. GM could up thier paint game, when approaching 90k I expect better paint. Value wise it is as good if not better than the rest of the over priced trucks on the market. Rumor is 20K per unit on average goes to the UAW pension, that's why your 50k truck costs 70k. In closing I have zero regrets other than the color, but I needed it immediately so here I am.

Rafeal was my contact there and he was great. He went above and beyond to communicate share photos and video and was very transparent. As a matter of fact the whole process and everyone was easy to work with. Not the dealer where sale and sale manager go back and forth to do some crazy negotiating. Open transparent and fair dealing. Rafeal was an advocate throughout and in and out with anew car well less than an hr after trade in paperwork

Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.

Christopher Levasseur is phenomenal. I will come back to buy from him moving forward. He's professional, personable, and remembers his people. Great people in the Service Center too! I've gotten two vehicles from here and they always remember me.

i did not expect to get the great fuel mileage that i'm getting with this size truck, and the power is fantastic.

My husband and I were so overwhelmed with our car search and were worried coming here may be just one more example of the sleazy used car salesman trope--we could not have been more wrong!! Joseph listened attentively to what mattered most to us in functionality, comfort, and price, and helped us to find many options that would be a good fit for us. We had a list of some we were interested in and he recommended some others that would fit the ticket well. He was so patient and informative as we test drove countless cars! Seriously, this guy is like a walking car encyclopedia! But also, isn't afraid to look something up if he's not sure, which rarely happens. It felt like car shopping with your cool uncle who knows everything about cars and is looking out for you. Can't recommend enough asking for Joseph when you need your next car!! He can pull almost any car from another Autonation location, so it's worth going here to work with him even if it's out of your way or doesn't have the car you think you might want! We wound up not finding our vehicle within the Autonation inventory, but still wanted to go out of our way to leave a review for Joseph because he made that much of an impact! A great ally in the stressful, overwhelming process of a big purchase :)

The staff and Mike Ward Infiniti always takes great care of my 2008 EX35. I bring my car to them from Colorado Springs for maintenance. Arend Macinko checked out a headlight sensor which is now working. This visit, while waiting for my car, I test drove a QX50 and QX55. Ashley Rodriguez-Terrazas was excellent in explaining all the features of each car. Ashley gave me a brochure for each so I can decide on which features I want on my car. Excellent Service! Thank You

Very trustworthy organization that has been nothing but helpful! Dan and his team like Wade where very helpful while buying a Truck!

has done everything i needed it to do. ride is good for a ton truck. miss the eight foot bed. i'll get use to the shortbed.

pulls my toyhauler like it not there. the exhaust break is fantastic the way the stabilatrack works with my trailer is un believable up hill down hill around town the GMC 3500 diesel works hard makes towing a dream

Had a great experience buying a used car .. they let me take my time in deciding and were very patient They were easy to work with and a very friendly staff...

Best truck I have ever owned. Used to tow a heavy RV. Wonderful comfortable ride. Highly recommended this truck. I drive it as my primary vehicle.

Really good help me with my very first car my family got cars from here and they are really welcoming to the people that comes in

I ordered a 2022 3500 SRW Pro LB Double cab 4x4 in silver metallic / blk cloth. Added preferred package; gooseneck pkg; X31; upgraded wheels; camper/Snowplow prep; black steps. Got the 6.6 gas L8T. No start/stop and runs on all 8 cylinders all the time. I Love this truck. Had Rams and Fords in past. This is my first GM truck. I am in my 50s so not a brand thing... just a great truck. It was delivered in June. Truck rides great, tows very well, reciever or gooseneck. Fuel mileage is outstanding! Especially for a 4x4 one ton. I get 16 to 18 highway when not towing. I was shocked by how well it did and impressed with towing mpg as well. I generally tow between 6 and 14,000 lbs. Loads include a Glacier bay catmaran boat, 30' camper, and 3 axle 25' gooseneck. Truck easily handles those loads. The L8T engine is smooth and powerful. The 6L90 Transmission functions perfectly. If something were to happen to this truck I would not hesitate to order an exact replacement. So far very satisfied. MSRP as ordered was $53,945.

I've owned Ford and Chrysler products and they all had a lot to offer but this GMC is exactly what I was looking for! I'll be driving this one gor a long time.

Very good buying experience. We purchased a BMW with the help of Phil. Both Phil and the rest of the staff were always very friendly throughout the buying process and we never felt pressured to buy the vehicle. We were able to test drive the car by ourself and more than one time before buying.

An overall nice truck but for a person at my size(5,11) the mirrors and posts really block the view. My tinted windows really amplify the problem. The hood also takes a bit of room for a short person. Its a comfortable ride and works well in my line of work in excavation. The sound muffler in the hood makes you think something is wrong but apparently its not.

Rick Hawkins is excellent. Straightforward, opposite of a stereotypical car salesman. Pleasure doing business with these folks. Will Patronize again in the future thanks much.