Knutz Auto & Truck

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

No. Knutz Auto & Truck 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.

Knutz Auto & Truck 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. Knutz Auto & Truck accepts walk-ins, so you can drive in without booking ahead.

Knutz Auto & Truck accepts Cash, Credit Card.

Knutz Auto & Truck has held a BAR smog license since 2016. You can verify the license status at bar.ca.gov.

Knutz Auto & Truck 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 (916) 337-7993 for a quote.

Knutz Auto & Truck does not take online bookings here, but walk-ins are welcome. Call (916) 337-7993 to check the wait.

Staff at Knutz Auto & Truck 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 Knutz Auto & Truck 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 Rocklin are My Auto Surgeon (0.1 mi) and Diesel Performance Specialist/euro Tech & Electric (0.3 mi). Both are listed further up this page with their ratings and hours.