Diagnostics & electrical
Check-engine lights, electrical concerns, starting issues, and engine performance problems.
Dewey, Oklahoma · By appointment
Full-service automotive care with the experience to find the problem—and the transparency to help you understand it.
Request an appointmentChoose a preferred time through our online scheduling page.

What we do
Keep your vehicle dependable with bumper-to-bumper mechanical repair and maintenance for all makes and models.
Check-engine lights, electrical concerns, starting issues, and engine performance problems.
Engine repairs, oil and coolant leaks, overheating concerns, and cooling system service.
Brake concerns, unwanted noises, steering problems, and ride quality repairs.
Diagnosis and repair to help keep your cabin comfortable through Oklahoma seasons.
Oil changes, scheduled maintenance, fluid services, and digital vehicle inspections.
Experience meets accountability
Cornerstone Auto is led by Dustin Moody, an ASE Master Certified technician with more than 22 years in automotive repair.
Our approach is straightforward: investigate the concern, explain what we find, and give you the information you need to decide what happens next.
See what we see
Photo- and video-supported digital inspections help explain your vehicle’s condition and the work we recommend.
Your visit, made simple
Service is by appointment. Tell us what your vehicle needs, and we’ll work with you on the next step.
Use our online scheduling page to share your vehicle concern and request an appointment.
We explain the diagnosis and recommended repairs so you can make an informed decision.
Approve the work, then coordinate pickup when your vehicle is ready.
Contactless and after-hours drop-off and pickup are available by prior arrangement. Evening appointments may be arranged—please ask when requesting service.
Before you book
We offer mechanical repair and maintenance for all makes and models. Include your vehicle details and concern in your appointment request so we can discuss your specific needs.
Yes, by prior arrangement. We offer a key dropbox and secure key pickup options. Coordinate with us before your visit to receive the instructions for your appointment.
Yes. We explain recommended work and obtain your approval before proceeding with repairs. Photos and videos help show what we find.
Find us at 513 N Delaware, Dewey, OK 74029. We serve Dewey, Bartlesville, and the surrounding area. Service is by appointment; call 918-332-9611 or request a time online.
Let’s get you taken care of
Tell us about your vehicle and what’s going on. Request your preferred appointment time online.
Service by appointment.
Evenings available by arrangement.