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 18, 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.

Downtown Brown

Jun 26, 2026

Google

John Grundon, took care of the vehicle repair. He was professional and knowledgeable. I appreciate his patience and his response. His co-workers were equally professional and patient. They correctly diagnosed the problem and the technician was able to correct it in record time.

Amelia Taylor

Jun 25, 2026

Cars.com

John Grundon has been my service advisor for many years, through many of my vehicles at Crown Buick GMC. He is always professional, friendly, and through as to my vehicles maintenance schedule.

james shearer

Jun 25, 2026

Google

John Grundon was great no issues all was handled professionally