Petersen Smog & Automotive

No. Petersen Smog & Automotive is not STAR certified. If your DMV renewal notice says "STAR Station Required," you will need to visit a STAR certified station instead.

No. Petersen Smog & Automotive is licensed as a Test & Repair station. This station can run your smog test and, if the vehicle fails, diagnose and repair it in the same shop.

Petersen Smog & Automotive is open Monday 8 AM to 5 PM; Tuesday 8 AM to 5 PM; Wednesday 8 AM to 5 PM; Thursday 8 AM to 5 PM; Friday 8 AM to 5 PM. Closed Saturday and Sunday. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Petersen Smog & Automotive accepts walk-ins, so you can drive in without booking ahead.

Petersen Smog & Automotive accepts Cash, Credit Card.

Petersen Smog & Automotive has held a BAR smog license since 2020. You can verify the license status at bar.ca.gov.

Petersen Smog & Automotive has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (209) 253-0678 for a quote.

Petersen Smog & Automotive does not take online bookings here, but walk-ins are welcome. Call (209) 253-0678 to check the wait.

Staff at Petersen Smog & Automotive speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Because Petersen Smog & Automotive is a Test & Repair station, it can diagnose and repair the problem in the same shop, then run the free retest within 30 days. If the repair bill is steep, California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternative in Ripon is Ripon Smog (0.5 mi). It is listed further up this page with its rating and hours.