CarMax Auto Superstore
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Store Details


16411 Shady Grove Rd.
Gaithersburg, MD 20877
Today's Hours: 10AM - 9PM
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At CarMax Gaithersburg you can shop for a used car, take a test drive, get an appraisal, and learn more about your financing options. Start shopping for a used car today.

Make An Appointment At
CarMax Gaithersburg

Test drive a used car, get an appraisal, or to get help with your search by visiting the team at CarMax Gaithersburg.


Showroom Hours

Monday - Friday 10AM - 9PM
Saturday 9AM - 9PM
Sunday 11AM - 7PM

Service Department Hours

Monday - Friday 7:30AM - 6PM

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Contact Us

Telephone Hours

Monday - Saturday 9AM - 9PM
Sunday 11AM - 7PM

Sales & General

Toll Free (855) 747-3532
Fax (301) 519-7337
Used Cars in Gaithersburg Sell Your Car to CarMax