United Motors

Yes. United Motors 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. United Motors 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.

United Motors 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; Sunday 8 AM to 2 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. United Motors accepts walk-ins, so you can drive in without booking ahead.

United Motors accepts Credit Card, Debit Card, NFC/Contactless.

Google lists the following accessibility features at United Motors: wheelchair accessible entrance, wheelchair accessible parking.

United Motors has held a BAR smog license since 1995. You can verify the license status at bar.ca.gov.

United Motors 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 (909) 356-5071 for a quote.

United Motors does not take online bookings here, but walk-ins are welcome. Call (909) 356-5071 to check the wait.

Staff at United Motors 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 United Motors 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 alternatives in Fontana are Fontana Smog Check Station (0.2 mi) and Fontana Smog Check (0.7 mi). Both are listed further up this page with their ratings and hours.