Union Star Smog CheckModesto, CA
SMOG CHECK & DMV · Modesto

SMOG DUE?
PULL IN TODAY.

Pull into the lot with your renewal notice. We run the test for your model year while you wait, the certificate goes to the DMV electronically, and you can ask about your registration at the same counter.

DMV

TAGS AT THE COUNTER

1 STOP

TEST, CERTIFICATE, TAGS

GAS · DIESEL

HYBRIDS AND RVS TOO

ON THE TEST LANE

  • Biennial renewals
  • Change of ownership
  • Out-of-state cars
  • Diesels
  • Motorhomes
  • DMV paperwork
PRINT IT OR SHOW IT ON YOUR PHONE

BRING THIS CARD TO THE COUNTER

Two visit cards that tell us what you need before you reach the bay. Print one, or just hold up your phone.

SMOG

SMOG CHECK, ANY MODEL YEAR

Gas, hybrid and diesel. Call for today's price for your vehicle year.

What to bring

Your DMV renewal notice if you have one, and the vehicle. Walk in during posted hours or book a time.

SHOW AT THE COUNTER

(209) 555-0184

+ DMV

SMOG CHECK + REGISTRATION RENEWAL

Test, certificate and new tags in one stop

What to bring

Your renewal notice and ID. DMV fees are set by the state and paid at the counter with the test.

SHOW AT THE COUNTER

(209) 555-0184

Questions before you come in? Call (209) 555-0184 and we will tell you which test your car needs.

BY VEHICLE YEAR

WHICH TEST YOUR CAR NEEDS.

The test depends on your vehicle's year and fuel. Find your row, then call for today's price. We quote it before we start.

VEHICLE WHAT IT COVERS
2000 & Newer OBD-II scan plus visual and functional inspection. Most cars and light trucks.
1996 – 1999 OBD-II scan plus two-speed idle tailpipe test and full visual inspection.
1995 & Older Full dynamometer tailpipe test. 1975 and older are exempt from testing.
RV & Motorhome Class A and Class C motorhomes. Call ahead with the length.
Diesel · 1998 & Newer OBD and visual inspection for diesels rated 14,000 lbs GVWR and under. No dyno.
VIN Verification Out-of-state, rebuilt-title and specially-constructed vehicles. Done at the counter.

Every passing test also carries the state's certificate fee. Not sure which row is yours? Read us your renewal notice and we will tell you. Cash, debit and all major cards.

CALL (209) 555-0184

EVERY SMOG CHECK INCLUDES:

A full BAR-specification emissions test on the state's calibrated equipment

Visual inspection of every required emissions component under the hood

Functional check of the gas cap, EGR system and check-engine light

Your certificate filed electronically with the DMV and BAR before you leave

PLUS WE INSPECT THE FOLLOWING:

Catalytic converter

EGR valve & passages

PCV system

Evaporative controls

Air injection system

Ignition timing

Gas cap pressure seal

Check-engine (MIL) light

Fuel filler neck

Exhaust system leaks

Emission control labels

OBD readiness monitors

If something on this list is why the car failed, ask whether we can repair it here and run the retest in the same bay.

EVERY KIND OF CERTIFICATE

WHATEVER THE DMV ASKED YOU FOR.

Change of ownership, a car that just crossed the state line, a motorhome, a work truck under the CARB program. Read us the notice and we'll tell you which test it is.

Change of Ownership

Selling or buying privately? California needs a certificate under 90 days old. We test it and the certificate goes to the DMV electronically.

Out-of-State Registration

Just moved to California? We handle the smog check and the REG 31 VIN verification together, so you make one trip instead of three.

RV & Motorhome

Class A and Class C motorhomes and long-wheelbase vans. Call ahead with the length and ask when to come in.

Diesel Vehicles

1998 and newer diesels rated 14,000 lbs GVWR and under, tested by OBD and visual inspection. Duallys, flatbeds and service trucks included.

Clean Truck Check

CARB's heavy-duty program replaced the old opacity test. We run the periodic OBD submission and file your compliance record with CARB.

Biennial Renewal

The every-other-year test your registration notice asks for. Bring the notice and the car, and ask about renewing your tags while you're here.

A service adviser hands new registration stickers across the counter to a customer
DMV REGISTRATION
DMV REGISTRATION AT THE COUNTER

SMOG AND TAGS AT ONE COUNTER.

After the test, ask about your registration at the same counter: the renewal, the transfer and the stickers can be sorted out while your car is still warm.

Registration renewal and new stickers

Title transfers and change-of-ownership paperwork

Out-of-state VIN verification (REG 31)

Duplicate titles, registration cards and lost stickers

Planned Non-Operation (PNO) filings and reinstatements

CALL (209) 555-0184
A VISIT, START TO FINISH

HOW A VISIT ACTUALLY GOES.

01

Drive In

Pull up to the bay and hand over the keys and your registration notice.

02

We Test

The state test for your model year, run while you wait inside.

03

We File

A pass goes to the DMV electronically. There's nothing to mail.

04

You Go

Pay, take the printed report, and if you renewed here, put the new tags on before you pull out.

WALK IN DURING POSTED HOURS, OR BOOK A TIME

GET DIRECTIONS

THREE THINGS TO ASK AT THE COUNTER.

Whether it's a first smog check or a fleet of work trucks, these are fair questions.

"What's today's price?"

Ask for the price for your vehicle year, state certificate included, before the test begins.

"Can you walk me through it?"

Pass or fail, there's a printed report. Ask what each line means.

"What would the fix cost?"

If it fails, ask what failed and what the repair would cost before you agree to anything.

QUESTIONS AT THE COUNTER

THE PART NOBODY EXPLAINS.

My notice says STAR. Can you do it?

STAR is the Bureau of Automotive Repair's higher-performance tier, and only a STAR station can certify a vehicle the DMV has flagged as STAR-directed. If your renewal notice says STAR, call and ask whether we can take your car before you drive over.

How long does a smog check take?

Newer cars with an OBD-II scan are usually the quickest. Older vehicles that need the tailpipe test take longer. For walk-ins it's test time plus whoever is ahead of you. Call and we will tell you how busy the bays are right now.

What happens if my car fails?

You get a printed Vehicle Inspection Report that names the failure. Ask whether we can diagnose and repair it here, and what the retest involves. If the repair is out of your budget, ask us about CAP before you leave.

What is the CAP program?

The Consumer Assistance Program is a state program that helps income-qualified owners pay for emissions repairs after a failed biennial smog check, or retire an older vehicle. Ask at the counter and we will point you to the application.

What is a gross polluter?

A vehicle whose emissions exceed twice the legal limit for its year and class. California requires a gross polluter to be repaired and then certified at a STAR station specifically. Bring the failed report and ask what the next step is.

Do I need an appointment?

Walk in during posted hours, or book a visit or call if you'd rather have a time held.

Still not sure which test your car needs? Read us your renewal notice and we will tell you.

Modesto, CA

WE ARE EASY TO MISS. HERE IS HOW NOT TO.

Smog shops are small buildings with small signs, and ours is no exception. Tap Get Directions for turn-by-turn, or call (209) 555-0184 and we will talk you in.

Union Star Smog Check

1420 Crows Landing Rd, Modesto, CA 95351
Modesto, CA

GET DIRECTIONS
THE SHOP

1420 Crows Landing Rd, Modesto, CA 95351

Modesto, CA

HOURS

Mon–Fri

8 am – 6 pm

Sat

8 am – 4 pm

Sun

closed

GET DIRECTIONS
A technician reads diagnostic results on a tablet in the service bay
IN THE SERVICE BAY
BOOK A VISIT OR CALL

PULL IN TODAY. DRIVE OUT LEGAL.

Bring the renewal notice, the pink slip or nothing at all. We'll work out which test you need.

BOOK A VISIT

TELL US WHAT YOU DRIVE.

Thirty seconds. We will confirm which test your vehicle needs, give you today's price, and hold a bay if you tell us roughly when you are coming.

We use your number to confirm your visit and nothing else.