Group 1 GMC Westside

Mr. Parra was courteous from the get go and all services I drove in for were taken care of in a timely matter. Services completed were explained thoroughly and offered recommendations for cautions found during inspection. Thank you

I had a very disappointing experience with the customer service I received from Martin Parra. He was very arrogant and unprofessional in the way he treated me. I went there expecting help with a problem, but unfortunately my issue was not resolved. Customers deserve to be treated with respect and professionalism, especially when they are coming in with a legitimate concern. I hope management takes this feedback seriously and improves the way customers are treated.

Great experience Leo take good care of my, making the process super fast and simple!

The staff at the dealership were professional and attentive with answering all my questions and concerns. Overall I was satisfied with the truck I got and they helped me out with leaving the dealership satisfied.

My family has been loyal to GMC for years. We currently own both a Sierra Denali and an AT4, and we chose these vehicles because they represent the premium, luxury‑tier side of the GMC brand. With that level of investment, we expect a service experience that reflects professionalism, respect, and a genuine commitment to customer care. Unfortunately, our recent visit to the service department was the exact opposite. My mother went in simply to request the service records for her Sierra Denali. Instead of being treated with courtesy, she was met with dismissive and disrespectful behavior from Martin Parra (Service Drive Manager) and Andy Barrios Escobar (Service Advisor). Their tone, attitude, and unwillingness to assist made her feel belittled — something no customer should ever experience, especially an older woman asking for her own vehicle’s records. Luxury‑level vehicles like the Denali and AT4 come with higher price tags because they promise higher standards, not just in engineering and comfort, but in the service that supports them. When representatives of the dealership fail to uphold those standards, it reflects poorly on the entire brand. This dealership needs to reevaluate how its service staff interacts with customers. Respect, patience, and professionalism are basic expectations, not optional. My mother deserved better, and any GMC owner, especially those driving Denali and AT4 models, deserves a service experience that matches the quality of the vehicles they invest in.

The place is pleasant, the people are nice, and the customer service is good; the inventory is great, as is the assistance they provide. It is the best place to buy and service your car.

Rogelio nos atendio muy bien, fue muy amable y resolvio todas nuestras dudas. Sin duda iria nuevamente con el, sera mi nuevo vendedor, el se preocupo porque salieramos satisfechos y por que nos llevaramos la mejor opcion.

I am writing to formally express my disappointment with the service and lack of communication I have received from Martin Parra, a service advisor MANAGER . My vehicle has been at Group 1 GMC Westside for a 2 weeks, and I have received no meaningful update regarding its condition, diagnosis, or when I can expect the work to be completed. I do not have another vehicle available, which has created significant difficulty getting to work. Despite this, there has been no sense of urgency or effort to keep me informed. I called Mr. Parra on two separate days. During both conversations, he told me he would call me back with an update, but I never received either call. I understand that the service department assists many customers; however, failing to provide a promised update is unprofessional and unacceptable—especially from someone serving as a Service Drive Manager. Unfortunately, this is my second poor experience with this service department. The vehicle was previously brought in for the same major issue, but the problem was not corrected, requiring me to bring it back. I also stopped bringing my vehicles to this dealership for routine oil changes after one of the service advisors suggested that I take them elsewhere instead. Customer service should be a priority alongside properly diagnosing and repairing customers’ vehicles. At a minimum, customers deserve timely communication, honest updates, and respect for their time—particularly when their vehicle has been unavailable for an extended period. I also hope this complaint reaches the appropriate management team and prompts a discussion about communication, accountability, and being mindful of customers’ circumstances. I hope Group 1 GMC Westside will take the necessary steps to address both my vehicle and the service concerns described above.

Booking appointment was easy and quick. Polite and professional service attendant. Service was completed within the time given. Service plan offered was reasonable. Really good service for a weekend time period.

Excellent experience,Mario was knowledgeable and walked me through the process, he made sure I was taken care off. I highly recommend Group 1 GMC