Mazda Smog Check
All Mazda gasoline vehicles need California smog. Reliable engines mean most Mazda 3/6/CX-5 pass first try if maintained. SkyActiv-D diesel was discontinued in US.
Common reasons a Mazda fails California smog
- Older Mazda 3 cat converter degradation
- CX-5 EVAP system codes
- CX-9 2.5T turbo-related codes
How to prepare your Mazda (pass first try)
- Drive 30+ miles
- Tighten gas cap
- Address any active codes
Mazda vehicle categories
- gas (Mazda3, Mazda6, CX-5, CX-9, CX-30, CX-50, MX-5)
- PHEV (CX-90 PHEV)
Common Mazda smog questions
Where can I get a Mazda smog check?
Any of our 13 BAR-licensed STAR-certified locations in San Diego, Orange, and Riverside counties handle Mazda smog inspections. Walk-ins welcome. 15-25 minute inspections.
What are common reasons a Mazda fails smog?
Older Mazda 3 cat converter degradation is one of the most common. Visit our shop for diagnosis if your check engine light is on.
How can I prepare my Mazda for smog inspection?
(1) Drive 30+ miles. (2) Tighten gas cap. (3) Address any active codes.
Is my Mazda EV/BEV exempt from California smog?
Yes — any 100%-electric Mazda (no gasoline engine) is exempt under California Health & Safety Code §43002. PHEV versions are still required.
STAR-certified shops near you
All locations handle Mazda smog inspections. Walk-ins welcome.