If your check engine light is on, your vehicle will automatically fail the smog test. It’s important to have the issue diagnosed and repaired before going for a smog check to avoid unnecessary retests and delays.

If your car fails a smog test, you’ll receive a report outlining the issue. You’ll need to get the necessary repairs to bring your vehicle into compliance and pass a re-test before you can renew your registration.

A standard smog check usually takes about 20 to 30 minutes. Walk-ins are welcome at most smog check centers, and the process is quick and straightforward for most vehicles.

During a smog check, a technician measures the amount of pollutants your vehicle is emitting. The test includes a visual inspection, functional test of the vehicle’s emission control system, and a tailpipe emissions check to verify compliance with state regulations.

You’ll be notified by the California DMV when your vehicle is due for a smog check as part of your registration renewal. You can also check your renewal notice or the DMV website for details about when a smog check is required.

Yes, if you’re new to California, you’ll likely need a smog check to register your vehicle in the state. Be sure to check local DMV guidelines for specific requirements.

Yes, leased vehicles are subject to the same smog check requirements as owned vehicles. It’s typically the lessee’s responsibility to ensure the car passes the smog check when required by the DMV.