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Diamond Auto Group

(1 Review)

768 Washington St, Auburn, MA 01501

(508) 832-0400

Today: 9:00 am - 8:00 pm
Appointment Only Hours: 7:00 am - 7:00 pm
Tomorrow: 9:00 am - 8:00 pm
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General Info
Diamond Auto Group is the premier General Motors dealer in Auburn, Massachusetts. Serving local cities like Worcester, Millbury, Sutton, and Leicester, Diamond Auto Group is home to the best service, sales, and parts departments in the area. Feel free to stop by and browse our brand new Chevrolet, GMC, Cadillac, and Buick models or check out our impressive selection of affordable pre-owned trucks, cars, and SUVs. If you're in need of a quick oil change, our service department will be more than happy to accommodate you. While you wait, visit our incredible cafe featuring yummy food our customers love to rave about. At Diamond Auto Group, we work hard to meet the needs of our customers. Please leave us a review about your recent experiences! Thank you for your patronage.

Appointment Only Hours

Mon - Fri7:00 am - 7:00 pm
Sat7:00 am - 5:00 pm

Regular Hours

Buick, Cadillac, Chevrolet, GMC
Payment method
financing available, visa, discover, amex
Route 20
New and used car sales, service, and leasing.
Automobile Parts & Supplies, New Car Dealers, Used Car Dealers, Auto Repair & Service


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Scott G.



The Service department ( Brian ) included, were not only belligerent but combative towards my daughter keeping my car for 5 days for a 1 hour job. The service department is the WORSE anywhere ! the tried to Con my daughter verbally abused her over the phone and threw keys at her when she went to pick up the vehicle. I just suffered a heart attack and my daughter was handling the service problem we had been having with Diamond Chevrolets service department. they tried to charge her for issues that they claimed they fixed weeks ago, blamed delays on the warranty company, called my daughter names threw keys at her never returned phone calls. promised rental car after 3 days made us return it. saying that was there max. This was by far the worse experience i had every experienced and the worst treatment my daughter had ever received . This place looks and acts like its Gangsters running everything.