No appointment necessary
12401 Woodruff Ave Unit 1
Downey, CA 90241
(562) 803-3030

Most cars
Coupon by: SmogCheckDeals.com
Jj's Auto Service is a STAR certified test-and-repair smog check station in Downey, CA. It has a coupon ($20 off).
12401 Woodruff Ave Unit 1, Downey, CA 90241
Price
Call for price
Hours
Open Mon–Sat
Station type
Test & Repair
Appointments
Walk-ins welcome
Languages
English
Payment
Credit Card, Debit Card, NFC/Contactless
Yes. Jj's Auto Service, Inc is STAR certified with the California Bureau of Automotive Repair, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
No. Jj's Auto Service, Inc 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.
Jj's Auto Service, Inc 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; Saturday 8 AM to 3 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
Yes. Jj's Auto Service, Inc accepts walk-ins, so you can drive in without booking ahead.
Jj's Auto Service, Inc accepts Credit Card, Debit Card, NFC/Contactless.
Google lists the following accessibility features at Jj's Auto Service, Inc: wheelchair accessible entrance, wheelchair accessible parking, wheelchair accessible restroom, wheelchair accessible seating.
Jj's Auto Service, Inc has held a BAR smog license since 2016. You can verify the license status at bar.ca.gov.
Jj's Auto Service, Inc 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 (562) 803-3030 for a quote.
Jj's Auto Service, Inc does not take online bookings here, but walk-ins are welcome. Call (562) 803-3030 to check the wait.
Staff at Jj's Auto Service, Inc 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 Jj's Auto Service, Inc 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.
How we get this data: BAR licenses and STAR status, Google hours and ratings, coupons published by the station.
Verify this station’s license and STAR standing at bar.ca.gov.
BAR field office: South El Monte • Licensed since 2016