An exterior shot of a Buick GMC vehicle.

Welcome to Sterling Buick GMC

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 6/30/26. 2. Monthly payment is $22.98 for every $1,000 you finance. Average example down payment is 10.7%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26.

0% APR FOR 5 YEARS for well-qualified buyers.1

OR

2026 GMC SIERRA HEAVY DUTY DENALI MODELS

4.9% APR FOR 48 MONTHS for well-qualified buyers.2

1. Length of contract limited. Must finance through GM Financial. Some customers June not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. 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 6/30/26. 3. Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers June 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 6/30/26.

0.9% APR
FOR WELL-QUALIFIED BUYERS.1

Plus, up to $2,250 PURCHASE ALLOWANCE for current eligible non-GM owners/lessees.2

Plus, no monthly payments for 90 days.3

1. Monthly payment is $18.37 for every $1,000 you finance. Example down payment is 28.3%. Must finance through GM Financial. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 6/30/26. 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 6/30/26. 3. Deferred monthly payments for 130 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 6/30/26.

TRUCK MONTH

3.9% APR FOR 5 YEARS for well-qualified buyers.1

Plus, an additional $3,000 PURCHASE ALLOWANCE for current eligible non-GM owners/lessees.2

Plus, no monthly payments for 130 days.3

OnStar® plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Not all vehicles may transmit all crash data. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. Subject to user terms. See onstar.com for details and limitations.

OnStar One delivers the best in safety, control and entertainment

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Sierra 3500 Chassis Cab

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

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Current Offers

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

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Our Reviews

DealerRater Jun 27, 2024

I purchased a Acadia 2020 last August & I’m very pleased with it, I’m really enjoying the ride!!🤙🏾

DealerRater Jun 25, 2024

Got my vehicle in the service department for an oil change on time. Very satisfied with the service.

DealerRater Jun 21, 2024

The sales team was very good. I brought my 22 at4 in because I thought the transmission was going out. They said they couldn’t figure it out so they wouldn’t fix it under my extended warranty. I literally bought a new truck that day and while I was signing papers the salesman called the service dept and asked what codes it gave. Turns out a max flow air sensor tripped and eventually reset itself. Service fept said that could make the truck misfire. 0/10 for service dept. I bought a new truck because of their awful lack of communication. Highly disappointed in the service team is an understatement!!! I had no intention of buying a new truck and turns out my old truck was fine. They just didn’t let me know that.

DealerRater Jun 19, 2024

Brock went out of his way to find the vehicle that we were looking for and had it very quickly. Everyone at the dealership was very friendly and made it a pleasant and quick experience.

DealerRater Jun 16, 2024

The guy Darren is very professional and polite he need a reward and many more like him is a awesome Awesome worker

DealerRater Jun 15, 2024

Very convenient to work with. We were in and out in quick. TOP DOLLAR FOR MY TRADE! Dylan Hebert was the BEST!

DealerRater Jun 14, 2024

Excellent service. All problems resolved. Personnel explained all work to be done. Very professional. Very satisfied

DealerRater Jun 13, 2024

Great people! Checked my brakes and found no problems and did not charge me. Very professional

DealerRater Jun 13, 2024

Easy to deal with. Very respectful of my time. Without a doubt the most pleasant buying experience ever.

DealerRater Jun 13, 2024

Excellent service, these guys took care of me when I was broke down and far from home!

DealerRater Jun 13, 2024

Purchased New 2024 Arcadia, salesman friendly and helpful, had a few small bumps in the road but they solved everything, Seems like they really take care of their customers

DealerRater Jun 12, 2024

We love our sales person kaygun he’s the best and we will be back

DealerRater Jun 12, 2024

Excellent service every time I contact Dylan. Will be returning for future purchases. Mike also is friendly and makes signing the paperwork easy.

DealerRater Jun 11, 2024

Our salesman Howard Singletary was a pleasure to work with along with our finance personnel. Due to the acts of kindness our salesman showed us Sterling Buick/GMC is now our GMC dealership.

DealerRater Jun 11, 2024

Good friendly service. Work was completed as told and looked like new. Car was clean when picked up.

Welcome to Sterling Buick GMC

At Sterling Buick GMC, we're committed to ensuring every driver visiting our showroom finds the perfect vehicle for their commute around Lafayette. Whether you're in the market for a new family vehicle or work truck, you can rely on high-quality models from the Buick and GMC lineups. Our dealership also offers simple and straightforward auto financing that you can begin online, with our parts and service departments ready to help you out further down the road. Read on to learn more about our services.

Visit Us for Buick & GMC Financing & Leasing

As your premier Buick and GMC dealer near Baton Rouge, Sterling Buick GMC boasts an expansive selection of new, certified pre-owned, and used vehicles to suit your unique needs. Our team also offers a wide range of Buick and GMC financing and leasing options across our inventory so you can find a model that suits your lifestyle and budget. Browse our selection of Buick and GMC lease deals and financing offers online to discover how much you can save on your next performance-oriented truck or SUV when you shop with Sterling Buick GMC.

Trust the Experts at Our Buick & GMC Service Center

Sterling Buick GMC's commitment to providing a first-rate dealership experience doesn't stop at our GMC and Buick lease deals. After you drive off our lot in a new or pre-owned vehicle, the certified technicians at our service center are here to help you stay up-to-date with your latest maintenance needs, from oil changes to brake service. In addition, our experts perform all their repairs with certified parts from our parts department, ensuring you receive a perfect fit on every replacement. Schedule an appointment online with our GMC and Buick service center today, and our team will help you keep your car in tip-top shape.

Make Us Your Preferred Buick or GMC Dealer Near Alexandria

Stop by our Opelousas location, and experience the Sterling Buick GMC difference yourself. We are excited to assist you with all of your automotive needs. Call us at (337) 284-4700 should you have any questions.

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Visit Our Showroom at Sterling Buick GMC

Mon - Fri8:30 AM - 6:30 PM
Sat9:00 AM - 4:00 PM
SunClosed

Mon - Fri7:30 AM - 5:30 PM
Sat8:00 AM - 12:00 PM
SunClosed

Mon - Fri7:30 AM - 5:30 PM
Sat8:00 AM - 12:00 PM
SunClosed