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Sales: 9:00 AM - 9:00 PM
Service: 9:00 AM - 6:00 PM

Customer Service In Garden Grove, Montclair, & Ontario



Here at STG Auto Group, we take pride in providing Garden Grove, Montclair & Ontario drivers with exceptional customer service. From our friendly sales associates to our knowledgeable finance agents, to our skilled service mechanics, we care about your experience at each of our Auto Group's locations.

If there is something in particular that we can assist you with, please take advantage of the form on this webpage to let us know. We're eager to hear your questions and comments. Complete the form on this website, and one of our helpful team members we will follow up with you shortly. We enjoy having an open dialogue with our customers and prefer to keep the conversation going after you take home one of our quality used cars for sale. When you submit the contact form, be sure to let us know the best way to follow up with you.

Do you have a question about auto repair or parts for sale? Would you like to know more about your financing options? Contact any of our dealerships through this form today. We look forward to hearing from you!

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Contact Information
 Email     Phone     Text Message
Dealer Information
STG Auto Group Ontario, Montclair & Garden Grove, CA Get Directions
STG Garden Grove: (855) 637-2379
STG Ontario/Montclair: (855) 637-1975
Sunday:
9:00 AM - 9:00 PM
Monday:
9:00 AM - 9:00 PM
Tuesday:
9:00 AM - 9:00 PM
Wednesday:
9:00 AM - 9:00 PM
Thursday:
9:00 AM - 9:00 PM
Friday:
9:00 AM - 9:00 PM
Saturday:
9:00 AM - 9:00 PM
Sunday:
CLOSED
Monday:
9:00 AM - 6:00 PM
Tuesday:
9:00 AM - 6:00 PM
Wednesday:
9:00 AM - 6:00 PM
Thursday:
9:00 AM - 6:00 PM
Friday:
9:00 AM - 6:00 PM
Saturday:
9:00 AM - 5:00 PM
Sunday:
CLOSED
Monday:
9:00 AM - 6:00 PM
Tuesday:
9:00 AM - 6:00 PM
Wednesday:
9:00 AM - 6:00 PM
Thursday:
9:00 AM - 6:00 PM
Friday:
9:00 AM - 6:00 PM
Saturday:
9:00 AM - 5:00 PM
Phone:

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