Diane Serio
Finance Manager dserio@criswellauto.com
Criswell Chevrolet of Thurmont
111 Frederick Road
Thurmont, MD 21788
Finance Manager (240) 575-6108 dserio@criswellauto.com
Read more2 Reviews
Write a Review2 Reviews of Diane Serio
January 06, 2026
RJ was responsive and initiated the call in reference to trading in my 2020 Gladiator. We were in the market for a New Wagoneer/Grand Cherokee/Durango as our 2014 Durango was out of warranty and although a trading in my 2020 Gladiator. We were in the market for a New Wagoneer/Grand Cherokee/Durango as our 2014 Durango was out of warranty and although a GREAT car, we were looking to trade up. We had not driven a Wagoneer and other dealers said due to a recall we couldn't. Ray was responsive, allowed me to test drive a Wagoneer, and appraised our Durango. We did not have finance information, however we were preapproved by Chase and knew we could get financing once we decided on which car would suite our needs and budget. I am a long time Jeep customer (1987) and even though the Wagoneer doesn't always receive favorable write ups I have come to rely on CDJR products as this is Jeep #6 and I have other CDJR also. Andrew Thomas gave the information needed for the First Responder Discount (28 years Fire Captain/Paramedic) Diane assisted with the financial portion (quick and Easy). This is the second Criswell purchase (2020 Gladiator Rubicon) and I hope to return in the future for additional purchases. ***Vehicle was purchased for CDJR Dealer More
Other Employees Tagged: Ray Johns , Andrew Thomas
July 31, 2025
I had a very enjoyable experience with the guys at the dealership. They understood that I was looking around and still saving money for a purchase and mark was incredibly patient and informative in answer dealership. They understood that I was looking around and still saving money for a purchase and mark was incredibly patient and informative in answering all my questions. More
Other Employees Tagged: Mike Boyce, Mark Blum
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