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STG Auto Group of Montclair

Montclair, CA

2.4
819 Reviews

10477 Central Ave

Montclair, CA

91763

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Showing 819 reviews

March 05, 2026

I had an extremely frustrating experience with STG Auto Group and feel obligated to warn others. Their communication and customer service have been absolutely terrible. When I bought my car, they installe More

by elijah
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Ceasar
February 21, 2026

They were great until we made payment. They tack on two ridiculously expensive add-ons that you cannot opt out of because they do it to every car they receive with a total of $3000 added t More

by Julia
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Daniel
February 09, 2026

They sold me paint warranties and two anti theft devices and I tried to cancel them because why do I need paint protection on something I was wrapping anyway and two I bought the portfolio appearance protec More

by Alaura
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
George
January 29, 2026

It was a mistake to visit this dealership without checking reviews beforehand. Over the phone, they promised one thing, but once we arrived, additional unexpected charges appeared. The sales manag More

by demo7806
Sales Price Transparency
Finance Experience
Recommend Dealer
No
Employees Worked With
N/A
January 23, 2026

This location did not honor the warranty that was purchased with the vehicle. Buyer beware of extra fees that can be inccured On maintenance services for the vehicle. Manager is also never around to More

by ddblah562
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Eduardo/jose
January 23, 2026

For anyone buying a car from STG Auto group buyer beware you will be treated like garbage. If you have any warranty work to be done you will be put on hold transfer after transfer. They’ve now officially ha More

by Rdion95
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Letty
January 19, 2026

We had a 9am appointment to test drive, and nobody was even there until 9:20. I mean literally none of the staff -- just us and the janitor. We finally did a test drive around 9:45 because they hadn't got More

by tyrw
Sales Price Transparency
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Ramy
January 16, 2026

STG Auto Group in Montclair is hands down one of the worst dealerships I’ve ever dealt with. From start to finish, this place has been nothing but stress, frustration, and wasted time. I am filing a for More

by Lyndeetanner65
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Tony Bacily
January 16, 2026

They wasted my time, money, and gas. I brought in a Mercedes CPO vehicle with full bumper-to-bumper warranty. They were actively looking for fake problems to reduce the price. First, th More

by Soly
Sales Price Transparency
Finance Experience
Recommend Dealer
No
Employees Worked With
Ahmed
December 02, 2025

Extremely deceptive practices. They dont check the cars. They sell lemons and won't call you back. More

by Rodriguez.gabriel39
Sales Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Recommend Dealer
No
Employees Worked With
Ramey
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