Great local spot with welcoming staff. Good price on oil change, very comfortable waiting area.
Kimi H.

Welcome to Honest-1 Auto Care

Your Auto Repair Specialists in Diamond Bar, CA

Honest-1 is the nation's only Eco-Friendly Auto Care chain. We offer a full range of automotive service and repairs. Along with providing the best service, Honest-1 wants to ensure our customers are thoroughly educated on the systems and services necessary to keep their vehicles in the best running condition possible.If you have had your car serviced at Honest-1 Auto Care please fill out our customer survey.

Select an individual service to find more information about the service and how these services affect your vehicle's maintenance and the impact they have on our environment.


  • Friendly, Honest Service
  • Highly Experienced
  • Fast, Prompt Service

Our Location

Honest-1 Auto Care Diamond Bar 780 N. Diamond Bar Blvd
Diamond Bar, CA 91765