Price
Call for price
Hours
Open Mon–Sat
Station type
Test & Repair
Appointments
Walk-ins welcome
Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- 8 AM – 5 PM
- Sunday
- Closed
Good to know
Languages
English
Payment
Cash, Credit Card
What to expect at Auto Traden Service
Auto Traden Service is licensed by the Bureau of Automotive Repair as a Test & Repair smog station in Modesto, so it can run the inspection and, if your car fails, diagnose and fix it in the same shop. It is STAR certified, so it can test vehicles the DMV directs to a STAR station, including gross polluters.
Walk-ins are welcome. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.
What to bring
Your registration or DMV renewal notice
It says whether the car needs a STAR station.
The car, with the check engine light off
On a 2000-or-newer car, a lit check engine light fails the test on its own.
A way to pay
The $8.25 state certificate is paid on top of the test when the car passes, unless the station's price or coupon includes it.
What if I fail?
- Auto Traden Service can diagnose and repair the problem in the same shop, then retest the car.
- Each station sets its own retest price, so ask before the first test.
- BAR's Consumer Assistance Program pays up to $1,450 toward emissions repairs for income-eligible owners.
425 W Hatch Rd, Modesto, CA 95351
Get directions →Hours
- Monday
- 8 AM – 5 PM
- Tuesday
- 8 AM – 5 PM
- Wednesday
- 8 AM – 5 PM
- Thursday
- 8 AM – 5 PM
- Friday
- 8 AM – 5 PM
- Saturday
- 8 AM – 5 PM
- Sunday
- Closed
Also listed on
Other stations near Auto Traden Service
A-1 Tony Hernandez Smog
431 West Hatch Rd
Sam's Complete Auto
819 S 9th St Ste C
Cisneros Auto Service & Smog
2200 Crows Landing Rd
Auto Smog Test Only
901 Paradise Road
Green Auto Repair
829 5th Street
Nearby cities in Stanislaus County
Questions about Auto Traden Service
Auto Traden Service 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 5 PM. Closed Sunday. Hours can change on holidays, so call ahead if you are cutting it close.
Auto Traden Service accepts Cash, Credit Card.
Auto Traden Service has held a BAR smog license since 2005. You can verify the license status at bar.ca.gov.
Auto Traden Service 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) 572-4760 for a quote.
Auto Traden Service does not take online bookings here, but walk-ins are welcome. Call (209) 572-4760 to check the wait.
Staff at Auto Traden Service speak English.
The closest alternatives in Modesto are A-1 Tony Hernandez Smog and Sam's Complete Auto (0.9 mi). Both are listed further up this page with their ratings and hours.
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.
Own this shop? Add photos
BAR field office: Fresno • Licensed since 2005