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Cesar Luna
Cesar Luna
Service Advisor
Mark Christopher Auto Center
2131 E Convention Center Way
Ontario, CA 91764
49 Reviews
49 Reviews
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49 Reviews of Cesar Luna
May 21, 2026
I brought in my newly purchased 2025 GMC Sierra 2500HD Denali for its complimentary service, and I was pleasantly surprised to receive an appointment as early as the next day. The service was completed in Denali for its complimentary service, and I was pleasantly surprised to receive an appointment as early as the next day. The service was completed in about 1.5 hours, which was exactly as expected. I highly recommend this service center to anyone looking for excellent and reliable service. More
by lifeisgood3
Verified Customer
May 20, 2026
Well, they take care of your car and they treat your time as a valuable commodity. It’s as if they feel “ no one wants to sit around at a dealership and eat chips and soda for hours “ and so they seem to wan as a valuable commodity. It’s as if they feel “ no one wants to sit around at a dealership and eat chips and soda for hours “ and so they seem to want to genuinely help you be on your way. And the techs talk you in laymen’s terms about what ever the problem was. The techs won’t hesitate to come out from their cubicle of a tool shed and talk to you about your car. And the dealership is clean, modern, air conditioned and … for lack of a better word “Fresh”. Everyone seems to have a real smile, not the plastic clown face you can sometimes get from dealerships. So keep of the good work and reality of things. Keep it fair, equal and pleasant as you seem to be doing now. Btw this is the first GMC vehicle I’ve ever own and the first time I have been to this dealership. I drive about 25 miles to this particular dealership because I like them. Keep up the good work. . More
by hooptycam
Other Employees Tagged: Jason Ho, Jackie Klosky, Leslie Fuentes
May 15, 2026
Excellent, knowledgeable & friendly service provided by our mechanic technician Cesar. Thank you Cesar! Working with the entire Mark Christopher staff is always a pleasure. our mechanic technician Cesar. Thank you Cesar! Working with the entire Mark Christopher staff is always a pleasure. More
by mccarthyranc6
May 08, 2026
Mark Christopher is the best dealer they always are friendly and communicative thank you for the help. friendly and communicative thank you for the help. More
by EDDIEBRADY3
Other Employees Tagged: Jackie Klosky, Tony Lopez, Avo Injian, Javier Juarez, Juan Fletes , Eddie Brady
April 11, 2026
They are the best dealership ever, fast, honest, and willing to negotiate. 10/10 Recommend. willing to negotiate. 10/10 Recommend. More
by johnnyramon007
Other Employees Tagged: Mario Sanchez
April 10, 2026
drop my truck for an oil change and tire rotation, i found out couple of dys after the back tires are gettin the tread uneven finish, qand they didnt mentioned nothing abot it. found out couple of dys after the back tires are gettin the tread uneven finish, qand they didnt mentioned nothing abot it. More
by quickresponse11
April 05, 2026
Very good customer service , I would like to know a little bit more details about the process little bit more details about the process More
by joseluisderugama
Other Employees Tagged: Greg Hess, Sam Fakhouri, Edy Lopez, Dino Picanzo, Javier Juarez, Juan Fletes, Sam Abdelmesseh
March 05, 2026
Service department was great got me in and out real quick. they had all the parts in stock so the job was completed real quick quick. they had all the parts in stock so the job was completed real quick More
by RLOPEZ24
Other Employees Tagged: Chelsea Jose, Nobu Damon, Jackie Klosky, Tony Lopez, Leslie Fuentes, Avo Injian, Javier Juarez, Juan Fletes, Joe Lopez
March 05, 2026
Service department is great. Wait time for porter to bring vehicle is ridiculous... 20 minutes wait time. Ruined the whole good experience. Wait time for porter to bring vehicle is ridiculous... 20 minutes wait time. Ruined the whole good experience. More
by JBARRENO
Other Employees Tagged: Jonathan (Mechanic) 5 stars
