New and used 2026 GMC Sierra EV trucks for sale near Good Hope, CA

I needed a 10k basic service on my vehicle. Everything went well, I will use Hatfield again.

Performed service for Lo-jack and invisible bra. Was done earlier than expected. Service area was clean and efficient. Will take truck back again. Thank you for being so prompt.

Great work Ryan! Very thorough in providing exceptional customer service thanks for resuming wash activities after the abundance of rain this season

Adam Miller in the service department is the best! He is always very friendly, and makes sure my vehicle and I am well taken care of. It seems that nothing has changed at the dealership since it was sold. I am very happy about this. Thanks again for the great customer service!

I personally had a great experience at Hatfield. No haggling over small stuff, no arguing or fighting over numbers. I highly recommend Hatfield.

Thank you Carlos Gonzalez and staff for working with us and providing us with extraordinary customer service. We’re very happy with our new GMC Sierra. My husband and I had been looking for a truck for months . Thank you for working with us.

Very easy paperwork and pleasant staff the sales lady Michelle was very helpful with the process also Gary the salesperson is a nice and will help out when needed

Service completed in timely manner. Service advisor very personable, facility clean and immaculate. Excellent job!

Great experience. Very helpful and polite. I would definitely go back to this GMC dealership.

My husband and I had a good experience in this dealer. Great service, friendly and professional.

I had probably the easiest, most hassle-free experience buying my new truck. Kaylynn was very accommodating and found my perfect truck. I couldn't be happier!

I had an amazing experience yesterday at Tustin GMC & Buick with Seth R.. I called him the night before to ask about the Sierra EV 2025, and he got right on it! We got the deal done in minutes, charged up the truck, and it was waiting for me to pick it up the next morning because I couldn?t make it that evening. This dealership is incredible! I usually buy luxury vehicles, and the service was just as great as when I do business with Porsche or Land Rover. George in finance was nothing short of amazing as well. The management is doing an incredible job keeping them going because they have such a great team. Every turn was met with a smile, and even in workout clothing, I felt like a valued customer. Thanks to Seth and George, this dealership is now my new pick-up truck home, and I?ll definitely be buying my pick-up trucks through Tustin GMC & Buick in the future.

I've been taking my car for service here since 2021. Excellent service dept! Emerson is the best service guy! Recently he fixed a problem I had since I bought the car and told me about it when I picked up my car. A most excellent surprise. Hands down top notch service. Highly recommend.

Experience was excellent! Everything was so smooth and easy! We are so happy with our purchase! Highly recommend Danny from GMC! Customer service was on point!

My experience at the dealership was excellent from start to finish. Abraham greeted me right away, took the time to understand what I needed, and answered every question with patience and detail. The entire process was fast, smooth, and professional. I truly appreciate his outstanding service and the overall efficiency of the team.

Had a great experience with their service department. They did great work on my GMC Yukon. Keep me informed on all the worked they performed. Definitely a great dealer to work with.

We've had only the best service with Diamond Hills. Everyone we have come in contact with over the last 2 years has been pleasant, courteous and helpful.

I didn't have an appt but they were awesome anyways. But nothing breaks on a schedule lol. I was helped quickly, offered coffee and a seat. They kept me updated on the car and how long it'd take for the parts. Thx guys, great job as usual.

I hade a Great experience at this dealership , Thank you Dylan for makeing my dreams come true. and to the finance depatment Freddy who made it very easy and fast, Icould not of had a better experience. I truly recommened Diamond Chevrolet Banning.

Tustin Buick gmc went above and beyond my expectations. Super friendly and helpful staff. They were able to answer all my questions and concerns. I would definitely recomend buying a vehicle from this dealership. Thanks again Tustin Buick gmc for all of your help.