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Mark Christopher Auto Center
Ontario, CA
10,804 Reviews
At Mark Christopher Auto Center our mission is to be a premier quality GM retailer in the Los Angeles metro - Southern California area; providing the best opportunities for our team members, customers, communities, and the manufacturer we represent. Feel free to come by the store at any time to meet us in person. We invite you to take a tour of our facility and enjoy a pressure free car buying experience.
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This rating includes all dealership reviews, with more weight given to recent reviews.
Sales Price Transparency
Service Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Workmanship
Service Time
Service Communication
Hours
Sales/Showroom
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 8:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 8:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 8:00 PM
Sunday 9:00 AM - 7:00 PM
Service
Monday 7:00 AM - 5:00 PM
Tuesday 7:00 AM - 5:00 PM
Wednesday 7:00 AM - 5:00 PM
Thursday 7:00 AM - 5:00 PM
Friday 7:00 AM - 5:00 PM
Saturday 8:00 AM - 12:00 PM
Sunday Closed
Parts
Monday 7:00 AM - 5:00 PM
Tuesday 7:00 AM - 5:00 PM
Wednesday 7:00 AM - 5:00 PM
Thursday 7:00 AM - 5:00 PM
Friday 7:00 AM - 5:00 PM
Saturday 8:00 AM - 12:00 PM
Sunday Closed
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Showing 10,804 reviews
January 13, 2026
Well done! Alazar was very respectful and helpful. I would buy from him again. This review is for your evaluation purposes and not to be used on social media. Alazar was very respectful and helpful. I would buy from him again. This review is for your evaluation purposes and not to be used on social media. More
by USCTONY
Verified Customer
January 12, 2026
service department avo injian is a liar he promised tha he was goin replace so manny parts and he only replace a sensor also this is the 3rd time i complained about transmission problems and i get no help he was goin replace so manny parts and he only replace a sensor also this is the 3rd time i complained about transmission problems and i get no help from him More
by GARCIAJ063
January 12, 2026
Armando and the team were very helpful. They made the process quick and easy. I will definitely be going back for my next purchase. They made the process quick and easy. I will definitely be going back for my next purchase. More
by vmg0425bg
Employees Worked With
January 12, 2026
I had an outstanding experience with Mark Christopher GMC thanks to Bobby Ramirez. He helped me get into my very first brand-new vehicle, and I couldn’t be more grateful. Bobby was professional, honest, a thanks to Bobby Ramirez. He helped me get into my very first brand-new vehicle, and I couldn’t be more grateful. Bobby was professional, honest, and went above and beyond in ways that many other salespeople at other dealerships did not. After multiple frustrating experiences elsewhere, he stood out immediately with his patience, clear communication, and genuine effort to make sure I was taken care of. He even worked to make sure the vehicle had leather interior specifically for our therapy dog, Reagan, which meant a lot to me and showed how much he truly pays attention to his clients’ needs. He never pressured me, answered all my questions, and made the entire process smooth and stress-free. I highly recommend Bobby Ramirez to anyone looking for a great car-buying experience. More
by only1logan06
Employees Worked With
Bobby Ramirez
January 11, 2026
Fantastic experience buying a CT5 at Mark Christopher Cadillac. Robert Garcia was extremely knowledgeable, helpful, friendly, and outstanding. He went above and beyond to help me select the perfect car. Cadillac. Robert Garcia was extremely knowledgeable, helpful, friendly, and outstanding. He went above and beyond to help me select the perfect car. More
by loisescott
Employees Worked With
January 11, 2026
Always on time for a drop off and promised a time that worked to return for pickup if my vehicle worked to return for pickup if my vehicle More
by diana.brashear25
Employees Worked With
January 11, 2026
Excellent quick service. Alvo is the best! Very pleased with everything for my oil change Alvo is the best! Very pleased with everything for my oil change More
by JBAADILLA
Employees Worked With
January 10, 2026
Tony Lopez always provides great service, accurate and fast always happy to work with him. fast always happy to work with him. More
by GARREOLA
Employees Worked With
