John Grundon

Bob Clark

Oct 28, 2026

Google

the service of my GMC was about as good as you are going to get, John Grundon did a very good job of seeing that every thing i wanted done to my vehicle was done as i requested, so you just can't ask of anything more. I will be back for my next service.

AmHousingVal

Oct 7, 2026

Google

John Grundon saves they day again! He immediately knew what the problem was and also fixed a sensor issue that no one else could. Thank you for excellent service!

granny0320

Sep 17, 2026

DealerRater

I have been working with Tammy Wagner for months now and she is so kind and patient with me. I ended up not buying a car but she is very pleasant to work with. I have always bought my cars at Crown and are very satisfied with them. Tammy is exceptional!! Employees Worked With: Tammy Wagner, Mark Fernandez, John Grundon

Kim Whiting

Aug 21, 2026

Google

Good experience. Service consultant John Gruden great job, i brought my beloved Envista in minor exterior correction. Explained covered under warranty, sent old part back to GMC for quality control, ordered new part, called 9 am next day( true to his word) set apt repair. All done, less than 1 week. So impressed bought crown buick care package.

Kennedy

Aug 19, 2026

Cars.com

John Grundon and Kim did a fantastic job thank you very much perfect service. Special order handling warranty timing and the facilities are fantastic everyone that works there is very friendly.

Kimberly Hubbard

Aug 17, 2026

Google

Mr. John Grundon, is a positive part of the Crown Buick Team. He’s kind, patient, knowledgeable, polite and HONEST, which is very rare these days. Thanks for having Mr. Grundon on your Team 100

2024 GMC SIERRA K1500 DENALI Owner

Aug 14, 2026

Carfax

John was knowledgeable and professional

Edward Ma

Aug 10, 2026

Google

John Grundon at Crown Buick GMC service did a great job on my 2500 HD. Kept in touch with me and informed me about what’s going on. Very knowledgeable. Thank you John.

Rebecca Stewart El Couhen

Jul 3, 2026

Google

John and the service crew did a wonderful jof of changing my oil and doing the other maintenance items on their list. My car runs even better now and John is always such a pleasure to work with for these visits. The lady who scheduled the appointment with me was also super pleasant!

Mark Fernandez

Jun 29, 2026

Google

Just purchased a brand new enclave from Crown Buick GMC and we had a great experience. Tammy was very knowledgeable and helpful throughout the whole process. John Grundon in service is knowledgable and very efficient.