Proper Check Engine Light Diagnostics Can Save You Money!
Many drivers turn to auto parts stores for a quick scan when their check engine light comes on, often expecting a simple answer. These stores typically offer a free scan, but the results can be misleading. The code pulled from a scanner is just the beginning, and often, it’s only a guess about what the problem might be. Auto parts stores may suggest a part to replace based on this code, but this approach rarely addresses the root cause of the issue. Many times, it ends up costing more in the long-run!
The CAR Difference
At Certified Auto Repair of SLO, we are comprehensive with our diagnostics. We also offer free check engine light code scans, just like typical auto parts stores, but we can go a step further. If the problem is more complex or requires more diagnostics, we’ll advise you on further steps to ensure the correct repair is made, rather than just replacing parts based on an assumption.


Meet The Team
We are dedicated to putting people first. We focus on ensuring every vehicle we service is safe and reliable. Our mechanics are among the most skilled and trusted auto repair technicians in town. We strongly believe that a positive, well-supported team leads to exceptional customer service, which is why we prioritize fostering a welcoming and encouraging environment in our shop.

Why Choose Us for Your Oil Change
When it’s time for an oil change, there’s no need to overthink it. With a five-star Google rating, Certified Auto Repair is San Luis Obispo’s most trusted shop for quick, quality oil changes. Stop by and see why so many local drivers count on us for their oil changes. There’s a reason we’re proudly known as Your Community Repair Shop.
Learn More About Our Diagnostic Process
Local experience behind your auto service
Certified Auto Repair has served San Luis Obispo since 1990. Meet owner Isaac L. Feldman and Kevin Swift, whose automotive backgrounds span more than 25 years in the car business.
Our shop offers a 3-year/36,000-mile nationwide warranty. Ask whether your repair qualifies and request the applicable terms. English and Spanish assistance and flexible financing are available.
Visit us at 393 Marsh Street, San Luis Obispo, CA 93401. Call our main number at (805) 543-7383, request service, or compare our services.