1. Limited availability at GMC EV dealers. Monthly payment is $16.67 for every $1,000 you finance. Average example down payment is 12.4%. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/25. 2. To qualify for the GM Limited Time Special, you must: (1) be a current Costco Gold Star, Business, or Executive level Member by June 2, 2025; (2) register with Costco Auto Program online or through its call center by July 31, 2025, to receive a certificate with your unique promotion code; (3) present your certificate and unique promotion code to any Chevrolet, GMC or Cadillac dealer at time of visit; (4) take delivery between June 3, 2025, and July 31, 2025, of a new 2024, 2025, 2026 GMC Sierra EV, Hummer EV SUV, or Hummer EV Pickup to receive a $1,000 Gold Star/Business Membership Costco member-only incentive or $1,250 Executive level Membership 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. 3. To qualify for the GM Rewards Limited Time Special, and receive 10,000 GM Rewards points for Costco Gold Star, Business Membership or 12,000 GM Rewards points for Executive Membership on eligible purchases you must: (1) be a Costco Gold Star, Business, or Executive level Member by June 2, 2025; (2) be an individual consumer 18 years or older residing in the fifty (50) United States or Washington, D.C.; (3) be a GM Rewards Member or enroll in the GM Rewards Program within 30 days of the purchase of a qualifying vehicle at experience.gm.com/createaccount; (4) register with Costco Auto Program online or through its call center by July 31, 2025, to receive a certificate with your unique promotion code; (5) present your certificate and unique promotion code to any GMC dealer at time of visit; (6) take delivery between June 3, 2025, and July 31, 2025, of a new 2024, 2025, 2026 GMC Sierra EV, Hummer EV SUV, or Hummer EV Pickup through the GM Limited Time Special. GM Rewards Members also earn 1 point for every $5 spent on a new GM lease or purchase, based on the vehicle MSRP and excluding taxes and fees. Points will be awarded within 45 days of your qualifying vehicle purchase. GM Limited Time Special 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.
1. Monthly payment is $27.78 for every $1,000 you finance. Average example down payment is 9.7%. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/25. 2. AVAILABLE ON THE TURBOMAXTM ENGINE. Not available with lease and some other offers. Take new retail delivery by 6/30/25. 3. AVAILABLE ON THE TURBOMAXTM ENGINE. MUST BE A CURRENT OWNER OF A 2011 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE OR A CURRENT LESSEE OF A 2020 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE THROUGH GM FINANCIAL FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 6/30/25. 4. AVAILABLE ON THE TURBOMAXTM ENGINE.
1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/25. 2. MUST BE A CURRENT OWNER OF A 2011 MODEL YEAR OR NEWER NON-GM VEHICLE OR A CURRENT LESSEE OF A 2020 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 6/30/25. 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 6/30/25.
* MSRP. Tax, title, license, dealer fees and optional equipment extra. Dealer sets final price.
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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.

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Our Reviews

Welcome to Ettleson Buick GMC

Welcome to our esteemed Buick and GMC dealership in La Grange, IL, where excellence in customer service and an extensive selection of vehicles define us. Our unique value proposition lies in our commitment to providing a personalized car buying experience, ensuring each customer finds the perfect vehicle to match their lifestyle.

Our inventory boasts a wide range of quality new, used, and certified pre-owned vehicles, catering to various preferences and needs. Whether you're in the market for the sleek Buick Encore GX for sale in La Grange, IL, the robust GMC Terrain, or the powerful GMC Sierra 1500, our dealership is your go-to destination. Our selection is meticulously curated to meet the high standards of our discerning clientele, ensuring satisfaction at every turn.

Explore Our Comprehensive Services

At our dealership, the customer experience extends far beyond the sale. Our finance center is equipped to offer personalized financing solutions, making the dream of owning a new Buick and GMC cars for sale a reality for every customer. Additionally, our state-of-the-art service center in La Grange, IL provides exceptional maintenance and repair services. From service coupons in La Grange, IL to regular tune-ups, we ensure your vehicle remains in peak condition.

We invite you to explore the unparalleled inventory and services at our new and used car dealership. For more information, to schedule a test drive, or to inquire about financing options, please contact us today. Your next automotive adventure begins here.

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SALES

Sales Hours:Special Hours
  • Independence Day - July 4thClosed
Regular Hours
  • Mon - Thu9:00 AM - 8:00 PM
  • Fri9:00 AM - 7:00 PM
  • Sat9:00 AM - 5:00 PM
  • SunClosed

SERVICE

Service Hours:Special Hours
  • Independence Day - July 4thClosed
Regular Hours
  • Mon - Fri7:30 AM - 6:00 PM
  • Sat8:00 AM - 4:00 PM
  • SunClosed

PARTS

Parts Hours:Special Hours
  • Independence Day - July 4thClosed
Regular Hours
  • Mon - Fri7:30 AM - 6:00 PM
  • Sat8:00 AM - 4:00 PM
  • SunClosed

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Ettleson Buick GMC 41.7782, -87.8668.