1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 7/31/24. 2. Only on the 5.3L V8 Engine. For trade assistance, you must show proof of ownership and trade in a 2010 model year or newer vehicle. Not available with lease and some other offers. Take new retail delivery by 7/31/24. 3. Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 7/31/24. Available accessories shown.
1. To qualify for the General Motors Limited-Time Special, you must: (1) be a current Costco member by April 30, 2024; (2) register with Costco Auto Program online or through its call center by July 31, 2024 to receive a certificate with your unique promotion code; (3) present your certificate and unique promotion code to any GMC dealer at time of visit; (4) take in-stock delivery between June 1, 2024 and July 31, 2024 of a new 2023 or 2024 GMC Sierra 1500 to receive a $1,000 Costco member-only incentive. Incentive will be applied at time of eligible purchase or lease and is compatible with current eligible manufacturer incentives for which you qualify. Incentive is subject to change due to vehicle inventory availability. Visit CostcoAuto.com/GM for full details. Costco and its affiliates do not sell automobiles or negotiate individual transactions.
^Eligible brake pad brands are GM Genuine Parts ($20 rebate per brake pad set), ACDelco Gold ($15 rebate per brake pad set), or ACDelco Silver ($10 rebate per brake pad set). Eligible brake rotor brands are GM Genuine Parts ($10 rebate per rotor), ACDelco Gold ($7.50 rebate per rotor), or ACDelco Silver ($5 rebate per rotor). Purchase and installation must be at a participating U.S. GM Dealer. See mycertifiedservicerebates.com for details and rebate form. Rebate must be submitted by 9/30/2024. Limit two brake pad rebates per VIN (one per axle). Limit four brake rotor rebates per VIN. Rebate will be issued as a Visa Gift Card; allow 6 to 8 weeks for delivery of gift card. Offer ends 8/31/2024.
Buick GMC logo with a Certified Pre Owned Text

Each Buick/GMC Certified Pre-Owned vehicle is thoroughly inspected and reconditioned and includes factory-backed limited warranties and roadside assistance.

A Buick car parked infront of a GMC truck.

Current Offers

View this month's current offers and promotions on select GMC vehicles.

Our Reviews

Welcome to Transwest GMC

Welcome to Transwest GMC, your premier GMC truck dealer near Denver, CO. We are proud to serve the Colorado area, providing amazing vehicles, exceptional customer service, and a dedication to helping you find the perfect car or truck. We are one of the most trusted GMC dealers near Denver, and we are always happy to help.

New GMC Truck Dealer Near Denver, CO

If you are looking for a GMC dealership in Colorado, look no further than Transwest GMC. We are home to a wide selection of GMC models, whether you are in need of a rugged, dependable work truck or a spacious, comfortable SUV for your family. Our knowledgeable sales team stands out among other GMC dealers near Denver -  thanks in large part to their willingness to go above and beyond for all of our customers! They'll help you find the perfect vehicle for your needs and budget, whether you are looking at a GMC dealership in Colorado for the Canyon, Sierra, Yukon, or Acadia.


At our GMC dealership in Colorado, we believe in going the extra mile for our customers. That's why we offer a range of financing options and competitive pricing to help make your purchase more affordable. Our finance department is staffed with certified experts who work with a network of lending partners to help you obtain the fair interest rate you deserve. We understand that shopping for a new vehicle can be stressful, and that's why we strive to make the process as smooth and hassle-free as possible. Our team is dedicated to delivering the best possible experience for every customer who visits our GMC truck dealer near Denver, CO. Our customers can take advantage of our helpful resources, such as our:

Our value your trade tool allows you to easily determine the trade-in value of your current vehicle, while our payment calculator can help you estimate monthly payments based on your budget. Plus, we offer comprehensive finance and insurance information to help you navigate the purchasing process with confidence. Our friendly and knowledgeable team is always here to answer any questions you may have and provide guidance every step of the way.


If your vehicle needs parts replaced or a routine tune-up, the experienced technicians at our Thornton-area service center can get this done for you! By simply scheduling a service appointment, you don’t have to take too much time out of your busy day to get this done. We specialize in doing the following at our service center:

Also, if you’re looking for stock GMC parts at our GMC dealership in Henderson, CO, browse our parts center in person or online where you can order your parts!

Visit us at Transwest GMC Today!

Our award-winning service and parts department is keenly focused on keeping you on the road, and many of Colorado's largest fleets trust all their service work to Transwest. Thanks for visiting our site, we hope your virtual visit meets your highest expectations. We assure you that your personal visit to our new GMC dealership in Henderson, CO will exceed them.

-Bob Ferguson, General Manager

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Transwest GMC 39.8709, -104.8942.