Welcome to Chuck Nash Buick GMC
New 2026 GMC Sierra 1500 Elevation, VIN 1GTUUCED3TZ109409. MSRP $67,670. Includes $11,135 dealer discount, $1,500 Purchase Allowance and $2,500 Bonus Cash for total savings of $15,135. Sale price $52,760 after $225 documentation fee. Tax, title, license and government fees extra. See dealer for details. Offers expire 10/31/26.
New 2026 GMC Yukon XL Denali, VIN 1GKS2JKL3TR170325. MSRP $94,659. Includes $6,109 dealer discount. Sale price $88,775 after $225 documentation fee. Tax, title, license and government fees extra. See dealer for details. Offers expire 10/31/26.
New 2026 GMC Sierra 2500HD SLT, VIN 1GT4UNEY7TF240228. MSRP $83,104. Includes $6,714 dealer discount and $3,500 Purchase Allowance for total savings of $10,214. Sale price $73,115 after $225 documentation fee. Tax, title, license and government fees extra. See dealer for details. Offers expire 10/31/26.
New 2026 GMC Acadia Elevation, VIN 1GKENKKS7TJ323353. MSRP $50,024. Includes $8,104 dealer discount. Sale price $42,145 after $225 documentation fee. Tax, title, license and government fees extra. See dealer for details. Offers expire 10/31/26.
New 2026 GMC Terrain AT4, VIN 3GKALYEG6TL443197. MSRP $42,735. Includes $4,505 dealer discount. Sale price $38,455 after $225 documentation fee. Tax, title, license and government fees extra. See dealer for details. Offers expire 10/31/26.
1. Monthly payment is $16.67 for every $1,000 you finance. Average example down payment is 10.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 11/2/26. 2. Only on 6.2L V8 and Diesel engines. Tax, title, license, and dealer fees extra. Dealer sets final price. Not available with some other offers. Take new retail delivery by 11/2/26. 3. Deferred monthly payments for 92 days. 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 11/2/26.
1. Bonus Offer valid from 10/1/26 through 11/30/26. Receive up to 50,000 GM Rewards Bonus Points (currently up to a $500 value when redeemed with GM) based on your monthly GM Financial payment. To be eligible for this Bonus Offer you must: (1) purchase or lease a new or unused Chevrolet, Buick, GMC or Cadillac vehicle and take delivery of your new vehicle by 11/30/26; and (2) finance your purchase or lease through GM Financial or Cadillac Financial. Only one Bonus Offer permitted per GM Rewards Mastercard Account. To be eligible for this Bonus Offer, your GM Rewards Mastercard Account must be open and in good standing at time of fulfillment. GM reserves the right to modify or revoke the Bonus Offer at any time. The GM Rewards Bonus Points will be added to the GM Rewards Member account associated with your GM Rewards Mastercard up to 30 days after completion of the offer requirements. 2. The value of points may vary by redemption option and may change from time to time at GM’s sole discretion. 3. To be eligible, members must have a GM or Cadillac Financial MyAccount and a minimum of 500 points available. Customer is still responsible for ensuring all required payments are made on time.
1. Length of contract 36 months. Monthly payment is $28.60 for every $1,000 you finance. Average example down payment for Envision is 17.6%, Encore GX is 17.5%, Envista is 14.4% and Enclave is 14.2%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 11/2/26 2. MUST BE A CURRENT OWNER OF A 2012 MODEL YEAR OR NEWER NON-GM VEHICLE OR A CURRENT LESSEE OF A 2021 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 11/2/26. 3. Deferred monthly payments for 92 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 11/2/26.
1. Bonus Offer valid from 10/1/26 through 11/30/26. Receive up to 50,000 GM Rewards Bonus Points (currently up to a $500 value when redeemed with GM) based on your monthly GM Financial payment. To be eligible for this Bonus Offer you must: (1) purchase or lease a new or unused Chevrolet, Buick, GMC or Cadillac vehicle and take delivery of your new vehicle by 11/30/26; and (2) finance your purchase or lease through GM Financial or Cadillac Financial. Only one Bonus Offer permitted per GM Rewards Mastercard Account. To be eligible for this Bonus Offer, your GM Rewards Mastercard Account must be open and in good standing at time of fulfillment. GM reserves the right to modify or revoke the Bonus Offer at any time. The GM Rewards Bonus Points will be added to the GM Rewards Member account associated with your GM Rewards Mastercard up to 30 days after completion of the offer requirements. 2. The value of points may vary by redemption option and may change from time to time at GM’s sole discretion. 3. To be eligible, members must have a GM or Cadillac Financial MyAccount and a minimum of 500 points available. Customer is still responsible for ensuring all required payments are made on time.
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Welcome to Chuck Nash Buick GMC

Your Premier Buick GMC Dealership in San Marcos

Buick and GMC vehicles have long been recognized for their confident performance, innovative technology, and refined design, delivering a driving experience that stands out on Central Texas roads and beyond. If you're shopping for a new vehicle or looking for auto repairs in the San Marcos area, you'll find everything you need at Chuck Nash Buick GMC. Whether you are shopping for a new or pre-owned model, our expansive inventory offers something to fit every lifestyle, and our GM service department can easily take care of any maintenance you need. Discover what makes our local dealership the ideal destination for your next vehicle.

An Extensive New & Pre-Owned Inventory

When comparing local car dealerships in San Marcos, you'll find that Chuck Nash Buick GMC always comes out as your top choice. From luxury crossovers like the Buick Enclave, Envision, and Encore to rugged SUVs and pickups like the GMC Terrain and Sierra 1500, we have a new vehicle sure to check every box on your wishlist.

If you are interested in getting the keys to a used car for sale nearby, we have you covered. We feature a comprehensive lineup of certified pre-owned vehicles that provide new-car peace of mind at a used-car price, alongside a wide-ranging selection of traditional pre-owned models from the world’s leading automakers. Apply for a GMC finance offer or view Buick specials to get the keys to a new car today!

Personalized GM Finance and Leasing Options

We understand that a new or new-to-you vehicle is an investment, which is why our GM financing specialists are on hand to help. Our team is here to explain the differences between buying vs. leasing a car, and we will explore all your options to make sure you secure a competitive finance rate. We have longstanding relationships with a variety of lenders to ensure your next ride meets your budget. Browse our new GMC lease specials to save on your next vehicle, or get a head start on the buying process by filling out our financing application online.

Certified Buick GMC Service Center in San Marcos, TX

When your vehicle requires routine maintenance or an unexpected repair, you can always trust the Chuck Nash Buick GMC service center. Our skilled, certified GM service team is ready to perform the work needed to keep your vehicle running its best, handling everything from GMC truck oil changes to comprehensive Buick repairs.

We use genuine OEM GMC parts in our repairs whenever possible—known for their precise fit and reliability—so that you can enjoy maximum top-quality peace of mind. Schedule your Buick or GMC repairs and address your maintenance needs at our San Marcos dealership today.

Your Local GM Dealership in Central Texas

Our primary goal is to provide a stress-free and straightforward customer experience, backed by knowledgeable staff and exceptional service every step of the way. You'll find Chuck Nash Buick GMC at 3209 N Ih 35 in San Marcos, which is just a short drive away for our friends from Kyle, Buda, New Braunfels, and across Central TX.

Whether you're looking to finance a new GMC truck, take a test drive, or get expert Buick repairs nearby, we look forward to assisting with whatever you need. We hope to see you soon!

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3209 N Ih 35, San Marcos, TX, 78666
Chuck Nash Buick GMC 29.9363, -97.8864.