Used 2021 GMC Sierra 1500 trucks for sale near Thornton, CO

Ryan, Jarret and Heidi always take excellent care of us each time when we visit for a service, with both of our vehicles. We do Mike Huffman, he was our salesperson

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.

Warning indicators started appearing regarding the Start/Stop functionality. Scheduled service online, brought vehicle in at scheduled time and was informed of the problem/solution within 1.5 hrs

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...

Foundation Cadillac did it again—and honestly, I’m not surprised! When my 12V battery died on my Cadillac Lyriq, David Hann and his incredible team jumped into action. They did whatever it took to get me back on the road quickly and stress-free. David is truly amazing—always professional, caring, and reliable. If you’re ever in need of service, repairs, or even looking to make a purchase, go to Foundation Cadillac and ask for David. You’ll be in great hands!

My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.

My old car broke down and I needed a car for work and was really nervous to have to get a new one as I have always had bad experiences with dealers, I saw they had a really nice Frontier and went in to see it and Joe one of the managers, Charlie, and Travis took amazing care of me, I didn't feel pressured at all and with all the questions I had everything was answered.

This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.

Bought my vehicle from Golden, CO Carmax and didn't have any support for mechanical issues. Still purchased the vehicle because it is what I wanted. Ashley from sales in Golden was the worst! I ended up closing the deal with Cora who was amazing and clearly the exception to the rule in Golden. When I told Ashley there were issues with the brakes she was rude and didn't take me seriously. I ended up working with the Federal Heights dealership on repairs. Debbie in the service department took this on and was soooo amazing! She took care of everything and I am so greatful! The technican at this location was amazing as well (I forget his name unfortunately)! It is really a shame that I had to go to another location to get service, but I am so glad that I did. Outstanding job Federal Heights location!

This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!

Easy buying process. They gave me a very good price with little hassle. They were easy to work with. I would recommend them to friends and family.

Great experience Diana helped me out a lot had an easy first time buyer experience drove of with what I wanted thank you Diana and Ethio Motors.

Jesus Hernandez was amazing and helped with us get into a vehicle same day woo!

Matt Wise and the rest of the John Elway team were all professional and very helpful in every aspect, in the purchase of our new Chevy traverse. We recommend anyone looking for a new vehicle go to John Elway on South Broadway. Again, Thank You ALL!!!!

Great Experience right from the start. Efficient and good diagnostics. Offered good deal for repairs and timely access to complete it, would use again for repairs and for a new car.

Hayden was patient and helpful. We appreciated his willingness to help us with purchasing a new car! Thank you

Austin was a great help through the whole process and made everything run fluid and smooth. Treated my car like it was his own or a car he was buying. It was almost like he was buying it with me.

Elba me atendió muy bien! Encantados con el servicio, muy bien todo el proceso súper rapido

I recently had the pleasure of purchasing my new Tacoma from Groove Toyota, and I couldn't be happier! From start to finish, the experience was fantastic. I worked with Nancy H., who was incredibly knowledgeable and attentive. She helped me navigate through the options and guided me to the perfect vehicle that fit my price point and lifestyle needs.What impressed me the most was how Nancy and the entire team at Groove Toyota worked to make my stretch goal a reality. They truly went above and beyond to ensure that I got the car I wanted while staying within my budget.I’m absolutely obsessed with my new Tacoma! It suits my needs perfectly, and I had a great time working with everyone at Groove. Their dedication to customer satisfaction is evident, and I highly recommend them to anyone in the market for a vehicle. Thank you, Groove Toyota, for such an amazing experience!

I recently purchased a truck from SAG Denver, I have had a very positive and professional experience with the sales and service departments. I normally avoid dealerships at all costs, however I came across a beautiful truck that I was having difficulty finding on the private market. I enquired online and was replied to very expediently. I received a no pressure call from a sales person who scheduled an appointment with me. When I arrived, I was greeted and assisted immediately. I test drove the truck with Tracey, who by the way, I highly recommend working with. After driving and inspecting the truck for a bit, I detected what is a common mechanical problem with that type of truck. I brought it up to Tracey and the sales manager Dan and my concerns were immediately acknowledged and validated. Dan did not try to gloss over my concern or argue that there was an issue, instead, he gracefully offered to have the repairs made along with any other contributing or resulting damage as needed. I left the truck with them to begin the repairs, unfortunately it was a bit more involved than originally thought. There ended up being a significant amount of engine work needed, nothing that could have possibly been detectable without opening up the motor. I think most dealerships would have somehow tried to find a way to charge me or unwind the deal rather than proceed with completing all necessary repairs and making the truck run properly. I have several other vehicles so I wasn't by any means inconvenienced, however I did purchase the truck because I had to haul some things for family. After the repairs ran into an extended period of time I did email to express my concerns, I received a call from Dan offering me another truck from their inventory until the repairs were completed on mine. I can't express enough how impressed and pleased I am with the entire experience with Springs Automotive in Denver, I would definitely recommend them and would buy from them again.

They were fair and responsive. Answered all questions. Speed of buying experience was best I’ve ever experienced.

We had a great experience with this dealership! I highly recommend using Jeremy Tabangay as your salesman. He was very polite, and wasn't aggressive in his sales tactics. He really made you feel like you weren't just a number to him. He also did a follow up after we purchased, just to make sure that everything was going well. I would also like to give Matt (finance department) a good review. He was fun to work with on the financing of our vehicle, and didn't pressure us into buying any add ons. He was also very quick in getting all the paper work filled out. We really enjoyed our entire visit there. I would use this dealership again in the future. Especially, if I was working with both of them.

Amazing experience .super patient and no hassle team, completely transparent Charles and Rick took good care of us! I would go back there again with my next purchase

Always a pleasure to get my truck serviced at Mike maroone Chevrolet, gmc, Longmont. Joe was my service advisor and got my truck in and serviced a lot faster then i expected. Service was an awesome. Thank yous