by 2025 GMC HUMMER SUV 3X Owner on 10/12/2026Verified Service
terrible, they did not communicate updates with me unless I calked and inquired. My w0w5 Hummer 3 was being service and was not accommodated with another vehicle until I made a big stint about it and then I was sent to Hertz for a 4 compact Buick vehicle. the custumer service was great when I was purchasing the car thought
by King O on 10/14/2026
Your Hummer was brought in on Friday, August 28, as a scheduled drop-off appointment for a high-voltage system warning. Although the appointment was scheduled as a drop-off, you opted to wait while our technicians began diagnosing the concern. After several hours of testing, our team identified a loss of isolation within the high-voltage battery system. Because of the complexity of the issue, a case was opened with GM Engineering, and the repair ultimately required replacement of the vehicle's high-voltage battery. Alternate transportation was provided that same day in accordance with General Motors' policies and procedures, and remained available to you throughout the duration of the repair. Our records also reflect multiple outreach attempts from your advisor to provide status updates as the diagnosis and repair progressed. This was a complex EV repair and we stand behind the process followed by our service team, our timeliness, and the level of accommodation provided throughout the repair.
by 2024 GMC SIERRA K1500 AT4 Owner on 09/18/2026Verified Service
Marisa was the best person i have ever delt with at any dealership and i am good friends with a guy that owns 5 dealerships and even with him giving me people at his dealership nobody was as good and shared all the information on time like her. Thank you for having her she was a pleasure to deal with and i will buy another truck from you guys because of her.
by King O on 09/20/2026
Our staff is committed to providing each of our clients with the best automotive experience! If you ever need anything else from us, please feel free to give us a call or stop by. Have an awesome day!
by 2023 GMC ACADIA AT4 Owner on 09/01/2026Verified Service
While Marisa was very nice and did a good job. The problem I brought the car in is not resolved despite paying more than $800. I am not happy that nothing ever seems to be covered by my warranty. All in all not happy with King O'Rourke or GMC for that matter.
by King O on 09/17/2026
Thank you for your feedback and for your kind words about Marisa. Unfortunately, the exhaust concern diagnosed during your visit is not a covered component under your extended service contract. We understand the frustration when a needed repair falls outside of warranty coverage and appreciate the opportunity to service your Acadia.
by 2015 GMC SIERRA K2500 SLT Owner on 08/08/2026Verified Service
Workmanship is excellent but service writer and service manager are scammers. Had truck in for some software update and reset that was diagnosed 6 months ago and wanted to charge me 259.00$ again when they could not reset system when first diagnosed . Had to go all the way up to the general manager and threaten to call corporate.
by King O on 08/17/2026
Thank you for recognizing the quality of the service you received during your visit. However, we'd like to clarify the circumstances surrounding the diagnostic charge. Your vehicle was initially diagnosed in February for warning lights. When it returned nearly six months and approximately 5,000 miles later with the same concern, it was necessary to perform a new diagnostic to verify that the warning lights were caused by the same condition and that no new issues had developed. You authorized the diagnostic prior to the work being performed, and once we confirmed the concern had not changed, we completed the repair accordingly. As a courtesy, we also reduced your final bill. Our goal is to provide an accurate diagnosis every time, and that begins with verifying the current condition of the vehicle rather than making assumptions based on a previous visit.
by 2024 GMC SIERRA K1500 DENALI ULTIM Owner on 07/31/2026Verified Service
I like the advisor rose did the best she could what little she had too work with ,I spent over 87k on a Brand new truck they part was in back order so I had no car they should have rented me a loaner car they should have tried to accommodate me better why would I ever buy another truck from them I don't think I ever will or recommend them I've talk to others who agree with this shop
by King O on 08/04/2026
We regret to hear that you had this experience with us. We'd like the opportunity to turn your experience around. Please reach out to us at (631) 724-4700 at your earliest convenience to discuss how we can turn this experience into a positive one.
by 2021 CADILLAC ESCALADE ESV PREMIUM LUX Owner on 07/04/2026Verified Service
I bought my 2024 Cadillac Escalade in for repairs because the horn was not working. I received a call two days later saying that the horn was working fine and they could not find anything wrong with it. I picked the car up started to drive home and realized that the horn was still not working. Took it to another Cadillac dealer who fixed the problem.
by King O on 07/07/2026
We take concerns like this seriously, which is why your vehicle was inspected by one of our Master Certified Technicians and subsequently verified by two Service Managers. At that time, the horn was found to be operating as designed, with no diagnostic trouble codes present. The vehicle was kept overnight so the concern could be rechecked along with your forward collision system concern.Had the concerns been duplicated or verified, we would have been happy to address it. If you would like to discuss your visit further, our Service Manager remains available to assist.
by 2021 GMC YUKON AT4 Owner on 04/24/2026Verified Service
Iliked the service was very disapointed in warranty did not cover towing for a water pump pully breaking off the pump at less than 50,000 miles loosing faith in GMC no call back from rep was told free towing for warranty said just changed policy last month!
by King O on 04/25/2026
We appreciate you taking the time to leave us this feedback. If you ever need anything else from us, please feel free to give us a call or stop by. Have an awesome day!
by 2020 CADILLAC XT6 PREMIUM LUXURY Owner on 04/09/2026Verified Service
This dealership, Services Dept and staffing are the most professional I have ever dealt with in my 35 years of owning a vehicle. Their attention to detail and keeping you informed of the progress of my appts are second to none. Rose is amazing and made my experience exceptional. You guys are awesome!!!
by King O on 04/11/2026
Thank you for your kind review; we are happy to pass along your comments to the team here at King O'Rourke Buick GMC, LLC! Please let us know if there is anything else we can do for you; we are more than happy to help!
by 2020 CADILLAC CT4 SPORT Owner on 04/03/2026Verified Service
Rose was the best service advisor I've had in the last 10 years I've been going to King O'Rourke Cadillac. She took time to see if I had points to use on my bill. Not a single previous service advisor ever did that before. Rose explained all the work that needed to be done.
by King O on 04/06/2026
We're happy you found our staff to be so supportive during your experience here at King O'Rourke Buick GMC, LLC. If you ever need anything else from us, please feel free to give us a call or stop by. Have an awesome day!
by 2024 CADILLAC LYRIQ TECH Owner on 01/15/2026Verified Service
Had an issue with losing air from one of my tires, no leak from a nail or hole. The tire pressure monitor system was working properly. Marissa, the service advisor, had the tire resealed around the bead and replaced the tire valve. This took care of the problem. Marissa is a strong asset to King O'Rourke.
by King O on 01/16/2026
Thanks for highlighting some of our staff who helped make this such a great experience! If you ever need anything else from us, please feel free to give us a call or stop by. Have an awesome day!
by 2025 CADILLAC XT4 PREMIUM LUXURY Owner on 01/02/2026Verified Service
It all starts with Rose, the service manager, who listens and acurately relays the information to Dan, the mechanic, who fixes the problem every time so that there are no come backs. Then Rose explains what was done and I drive away very pleased and asured that I am safe.
by King O on 01/03/2026
Thanks for highlighting some of our staff who helped make this such a great experience! If you ever need anything else from us, please feel free to give us a call or stop by. Have an awesome day!
by 2025 CADILLAC XT4 PREMIUM LUXURY Owner on 12/22/2025Verified Service
For me, King O'Rourke Cadilac begins with Rose, the Service Manager, who is always upbeat and listens so that acurate information is relayed to the heart of the service department, Dan the mechanic. I never have to bring the vehicles back for a second attempt at a problem and along with them operating better, my cars always look better than when I brought them in.
by King O on 12/24/2025
Thanks for highlighting some of our staff who helped make this such a great experience! Our team strives to deliver an excellent experience, and are glad you found this to be the case during your visit. If you have further needs or questions, please reach out!
by 2025 GMC SIERRA K2500 SLT Owner on 12/15/2025Verified Service
Brought my truck in for a state inspection and a oil change. I had a appointment for 7:30 am. They took the truck right in and took 2 hours for the job. I just felt that it took alittle to long. Other then that I am very satisfied with the service. The service writer was very friendly and helpful.
by King O on 12/16/2025
We're so happy we were able to help you out! We sincerely value your business and look forward to your next visit!
by 2023 CADILLAC ESCALADE ESV SPORT PLATIN Shopper on 11/19/2025Verified Shopper
It was a horrible experience as the salesman knew absolutely nothing about the car and Escalade . He did tell me about his crazy hot Italian girlfriend they was text I g him all day . And then I got a face full of smoke as he lite his cigarette., that would be expected for a used car dealership on the side of the road not for a franchise Cadillac dealer that selling $100,000 +++ cars
by King O on 11/26/2025
Mr. Gi, We sincerely apologize for falling short of your expectations during your visit with us. At King O'Rourke we always strive to provide the highest quality customer service. We hope that you will still stop back in. Rest assured that every effort will be made to merit your confidence in King O'Rourke.
by 2025 CADILLAC XT5 SPORT Owner on 10/02/2026Verified Service
Easy to make appointment
Oil change done in my driveway
Technician was extremely knowledgeable and professional
by King O on 10/04/2026
We're glad to hear you found our staff was so knowledgeable and helpful! If you have any further questions, please don't hesitate to reach out!
by 2024 CADILLAC ESCALADE PREMIUM LUXURY Owner on 09/25/2026Verified Service
Cadillac Mike is one of the best salesman I've ever met in my life. The service department was also outstanding very pleased..
by King O on 09/28/2026
We're happy to hear you had such a positive experience with our team! Please let us know if there is anything else we can do for you; we are more than happy to help!
by 2024 GMC TERRAIN AT4 Owner on 09/24/2026Verified Service
They are the worst dealership on Long Island! I highly recommend no one ever go to get their car / truck serviced from there!!! They are scammers and the worst of the worst. After my lease is up I will be going elsewhere for a truck.
by King O on 09/25/2026
Matthew Genchi, we strongly disagree with the statements made in this review and feel it is important to clarify the facts surrounding your recent service visits. In July, your vehicle was outside of its bumper-to-bumper warranty based on mileage when it was brought to us for a coolant concern. Despite the repair not being covered under the vehicle's remaining warranty, our team advocated on your behalf with GM and successfully obtained approximately $2,000 in coverage for the repair. When you returned on September 14 with a sway bar link concern, you were charged only for the diagnosis and the necessary part. King O'Rourke performed the installation without charging you any additional labor. Our team has repeatedly worked to reduce your out-of-pocket expense, advocate for assistance from the manufacturer, and address the concerns you have brought to us. You have also repeatedly advised our staff that you intend to pursue legal action against the dealership. Given those statements, and your continued dissatisfaction despite our efforts, we believe the service relationship has reached its conclusion and will no longer be accepting your vehicle for future services. We recommend visiting another authorized dealer for any future repair or maintenance needs. We stand firmly behind the assistance, professionalism and work our service team has provided.
by 2024 GMC SIERRA K1500 DENALI ULTIM Owner on 09/22/2026Verified Service
There's a woman rose she is the service shop advisor very good at what she does is super easy too talk too and always knows a lot of knowledge about all vechicles
by King O on 09/24/2026
We're glad to hear you found our staff was so knowledgeable and helpful! Please let us know if there is anything else we can do for you; we are more than happy to help!
by 2023 CADILLAC CT5 PREMIUM LUXURY Owner on 09/20/2026Verified Service
I experienced a problem on a recent service visit. After a working with Michael Piscopo it was corrected. King O'rourke went above and beyond.
by King O on 09/22/2026
We're so glad that we were able to go above and beyond your expectations! Please let us know if there is anything else we can do for you; we are more than happy to help!
by 2021 GMC CANYON DENALI Owner on 09/19/2026Verified Service
Did not like the fact that the serpentine belt cost only $38 but yet the final cost was almost $400. I'm not going back there.
by King O on 10/02/2026
We understand your concern regarding the cost. The charge reflects the complete diagnostic and repair process, not simply the cost of the replacement part. Your vehicle was brought in for an engine-area noise, which can have a number of possible causes. One of our Master Certified Technicians took the necessary time to properly diagnose the source of the noise and complete the repair correctly. We stand behind both the work performed and the pricing associated with the diagnosis and repair.
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Service Information
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8,506 Customer Favorites
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Top Services Performed
Based on CARFAX Service History, King O'Rourke Cadillac Buick GMC specializes in these services, in addition to many others.
Auto Maintenance
Battery Service
Brake Service
Check Engine Light Diagnosis
Electrical Repair
Emissions Inspection
Engine Service & Repair
Exhaust
Full Service Auto Repair
Mechanical Repair
Muffler Repair
Oil Change
Safety Inspection
Steering & Suspension
Tire Service & Repair
Transmission Service & Repair
Wheel Alignment
Top Makes Serviced
Based on CARFAX Service History, King O'Rourke Cadillac Buick GMC specializes in these makes, in addition to many others.
Buick
Cadillac
Chevrolet
GMC
Honda
Shop Amenities
Complimentary Drinks
Courtesy Loaners
Free Car Wash
Free Wi-Fi
Mobile Charging Station
Quiet Room
Snacks
Valet Service
About Us
At King O’Rourke, our award-winning service department is proud to deliver expert vehicle care to drivers across Smithtown, Suffolk County, and all of Long Island. With one of the largest EV-certified technician teams in the region, our factory-train...
What do verified customers think about King O'Rourke Cadillac Buick GMC in Smithtown, NY?
Verified customers who visit King O'Rourke Cadillac Buick GMC in Smithtown, NY rate this business 4.5 out of 5 stars, with 769 reviews. 8,506 customers favorited this location.
How can I contact King O'Rourke Cadillac Buick GMC in Smithtown, NY?
To reach the sales team at King O'Rourke Cadillac Buick GMC in Smithtown, NY, call (631) 518-3797. To reach the service department, call (631) 724-4700
How can I schedule a service appointment with King O'Rourke Cadillac Buick GMC in Smithtown, NY?
What are the shop amenities offered by King O'Rourke Cadillac Buick GMC in Smithtown, NY?
King O'Rourke Cadillac Buick GMC in Smithtown, NY offers the following amenities: Complimentary Drinks, Courtesy Loaners, Free Car Wash, Free Wi-Fi, Mobile Charging Station, Quiet Room, Snacks and Valet Service, among others.
Does King O'Rourke Cadillac Buick GMC in Smithtown, NY have a service center?
Yes, King O'Rourke Cadillac Buick GMC in Smithtown, NY does have a service center. You can contact the service department at (631) 724-4700.
