John Grundon

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 26, 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

2025 GMC SIERRA K1500 AT4 Owner

Jun 25, 2026

Carfax

Jon and the whole crew were professional and detailed. Would definitely recommend.

Steven Lajoie

Jun 21, 2026

Google

John Grundon and the service team provide excellent customer service. I have worked with John for more than 5 years and am very satisfied with his professionalism and in depth knowledge. Consequently I will stay with John and Crown Buick GMC.

jo winrow

Jun 16, 2026

Google

JOhn Grundon is the best he always make you feel good about being there and helps as best he can. Shuttle driver is excellent too

Jay Cadigan

Jun 13, 2026

Google

John Grundon is excellent! Excellent employee!

Colleen Morrison

Jun 12, 2026

Google

Thank you to John Grundon at Crown Buick GMC service department who gave excellent customer service to us on Tuesday morning! They are our “go-to” dealership when we are in this area.