
Patriot Diagnostic Services
We service San Antonio and the surrounding areas.
đź”§ Your Trusted Partner in Vehicle Diagnostics & Repair | We Come to YOU!
About Us
Patriot Diagnostic Services, LLC is a professional mobile mechanic, providing automotive diagnostics, mechanical repairs, and advanced driver assistance systems (ADAS) calibrations throughout the San Antonio and surrounding areas. We specialize in mobile mechanic service, bringing our expertise directly to your location for maximum convenience. Our certified technicians use state-of-the-art diagnostic equipment to accurately identify and resolve vehicle issues, from complex electrical problems to advanced safety system calibrations.
Our Services
- Mobile Automotive Diagnostics
- Mechanical Repairs & Maintenance
- ADAS Calibrations (Advanced Driver Assistance Systems)
- Check Engine Light Diagnostics
- Electrical System Troubleshooting
- On-Site Mobile Service (We Come to You!)
- OE Programming
- AC Repair
- Routine Vehicle Maintenance
Meet Our Team
Our dedicated team of certified automotive professionals is committed to providing you with the highest quality diagnostic and repair services. We take pride in our accuracy, reliability, and customer service.


Brandon – Manager

Toby Moore – Owner


Our Technicians
Our team of highly skilled technicians possess extensive training and certification in automotive diagnostics and repair. Each member is committed to maintaining the highest standards of professionalism, accuracy, and reliability. Equipped with advanced diagnostic tools and ongoing education, our technicians stay current with the latest vehicle updates to ensure precise assessments and effective solutions.
Contact Us
Ready to get started? Contact us today for a free quote on your automotive diagnostic and repair needs.
Email: Toby.moore@pdssatx.com
Service Area: San Antonio and surrounding areas.
Customer Testimonials
“Thank you for the outstanding work that Toby, Brandon, and the entire crew at Patriot Diagnostic Services. We had taken our daughter’s vehicle to two other mechanic shops, but they were unable to fully repair our daughter’s vehicle. When we took it to Patriot Diagnostic Services, they were able to diagnose the problem and Toby always kept me informed on the progress of the repair work. We were extremely satisfied with the work and cost of the repairs to our daughter’s vehicle. We will definitely refer friends and family to Patriot Diagnosis Services, they are the best!!!!” – Robert Alvarado
“If you are the south Texas area and are needing any programming diagnostic or mechanical of any sort this is the company for you! They have taken care of even the more complex diagnostics for my shop and I would recommend 100%!” – Johnny Martinez
“I had an excellent experience with Patriot Diagnostic Services! They quickly and accurately diagnosed the issue with my Jeep and handled the reprogramming flawlessly. What really stood out was their professionalism, clear communication, and attention to detail—they took the time to explain everything so I felt confident in the work being done. Highly recommend their honest and detailed services!” – Chrissy Zirkle
“We have been using Patriot Diagnostic for years. The quality and precision of their work is unmatched and reliable. They are always prompt and professional. Thank you and your team Patriot.” – Alexander Garcia
“I run a Body Shop here in San Antonio, we have been doing business with Patriot Diagnostic Services for two years. Toby and his team are always able to assist us in diagnosis and calibration of vehicles. They have the most updated systems needed to complete repairs on vehicles. Toby and his team are knowledgeable and are always willing to go above and beyond in completing the proper calibrations, ADAS systems, and diagnostics needed for each vehicle at a reasonable cost. I am grateful to Toby and his team for everything they help us with each and every time they are here at our shop. I highly recommend them to customers and shops. Thank you Toby and team for the GREAT! service.” – Mario Gacia
“I have a 2007 4runner. The evaporator on the AC went out and you have to take the dashboard out. Most people wouldn’t touch it, because it is a lot of work. I spoke to Toby Moore with Patriot. He assured me he was confident that they could do the job, so I agreed. The job was done in a timely manner and my AC has never blown colder! The price was more then fair. I highly recommend these people.” – Larry Zavala
“Patriot Diagnostic Services did an excellent job with our car’s diagnosis. My driver and passenger door handle wouldn’t open from the outside, so I called for a diagnosis without needing to visit a shop. They scheduled Jeff the same day, which was convenient. Jeff arrived on time, was polite and professional. He diagnosed the issue efficiently in under an hour, explained it clearly without jargon or any pressure, and showed me exactly what he found. No upsell—just straightforward, honest work. The mobile aspect saved time, the diagnosis was accurate, and the service was great. I’ll call them again for any diagnostic needs and will absolutely recommend them to others.” – Ryan Rocco
“Customer service is definitely one of the best! Upfront on pricing and kept me very informed on the process. I would 10/10 recommend to anyone. I will be sending people your way when the service is needed. Thanks for everything.” – Jorge Hernandez