1. Schedule Your Appointment
Whether scheduling online or over the phone be sure and let us know what you're experiencing so we can provide fast and accurate service advice.
2. Diagnostics and Inspections
Drop off your vehicle and the shop will get to work with inspections and diagnostics using the same equipment as the manufacturers to determine issues and next steps.
3. Digital Vehicle Inspection Report and Estimate
Following the diagnosis we will text you a digital vehicle inspection report, containing pictures and videos of our findings and recommendations.
4. Review and Approval
A service advisor will reach out to walk you through the findings and recommendations to determine how you would like to proceed, or you can approve work directly in your DVI.
5. Work Performed or Scheduled
Most work can be completed immediately, or scheduled based on parts and customer availability.
Flashing vs. Steady: What Your Check Engine Light Is Actually Telling You
Not every check engine light carries the same urgency. The difference between a flashing light and a solid one tells you a lot about how quickly you need to act.
A flashing check engine light means an active fault is occurring right now, most often an engine misfire. Misfires send unburned fuel into the exhaust stream, which can overheat and damage the catalytic converter within minutes of continued driving. If your light is flashing, pull over when it’s safe and arrange to have the vehicle transported or driven directly to a shop. Continuing to drive with a flashing light risks turning a manageable repair into a much more expensive one.
A solid, non-flashing check engine light signals a stored fault. The vehicle’s onboard computer detected a problem at some point and logged it. The car may drive normally for now, but that doesn’t mean the fault can wait indefinitely. Stored faults tend to worsen over time, reduce fuel efficiency, and, in some cases, cause additional component damage. More immediately for Cumming drivers: a lit check engine light of any kind causes an automatic failure on Georgia’s annual emissions test.
The Forsyth County Emissions Testing Consequence
Forsyth County is one of 13 Georgia counties that require annual emissions testing. The test uses an OBD-II scanner to read the vehicle’s malfunction indicator lamp status. If any fault code is active or the check engine light is on, the vehicle fails on the spot. A failed emissions test blocks registration renewal until the underlying fault is addressed and a passing result is obtained.
Georgia’s Clean Air Force recommends testing four to six weeks before your registration renewal date. That window matters: if your vehicle fails, you need time to get it repaired, cleared, and retested before the renewal deadline. A check engine light that seems minor today can turn into a registration hold if it’s still on when your test is due.
Gasoline-powered vehicles registered in Forsyth County that fall within the applicable model year range are subject to this requirement each year. If you’re unsure whether your vehicle qualifies, a service advisor at our Cumming location can help you confirm before you schedule the test.
What Happens After We Diagnose Your Vehicle
Diagnosis is the starting point, not the finish line. Once our technicians complete the OBD-II scan and inspection, you receive a free Digital Vehicle Inspection (DVI) report with photos and videos of everything we found, sent directly to your phone. You see the condition of your vehicle’s systems the same way our technicians do.
From there, a service advisor reviews every finding with you and walks through the available repair options. No work proceeds without your explicit approval. We explain what’s urgent, what can wait, and why, so you can make a decision based on real information rather than pressure. Our shop services all makes and models, including domestic, foreign, gas, and diesel vehicles, and all repairs use high-quality, manufacturer-level parts.
Every completed repair is covered by the Nice Difference Warranty: 3 years or 36,000 miles, honored at any Christian Brothers Automotive location nationwide. Christian Brothers Automotive Cumming also works with all major extended warranty providers, so if you carry third-party coverage, bring your information and we can handle the coordination.
Frequently Asked Questions
What If My Check Engine Light Comes Back After a Repair?
If the light returns after a repair, it typically means a new fault has been stored or a related issue has surfaced. It doesn’t necessarily mean the original repair failed. Prompt re-diagnosis is the right step before the problem worsens or triggers a failed emissions test. Bring the vehicle back in, and we can scan it again to identify what’s new.
How Should I Prepare for My Forsyth County Emissions Test?
Address any check engine light before you schedule the test. Georgia’s Clean Air Force recommends testing four to six weeks before your registration renewal date, giving you time to address any fault, allow the vehicle’s systems to complete their readiness cycles, and retest if needed. A vehicle that fails can’t renew its registration until it passes. Coming in for a diagnostic before your test date is one way to help avoid that delay.
Do You Work with Extended Warranty Providers?
Yes. Christian Brothers Automotive Cumming works with all major extended warranty providers. Bring your coverage documentation when you schedule service, and we can coordinate directly with your provider on eligible repairs.
What Makes & Models Do You Service?
We service all makes and models at our Cumming location, including domestic and foreign vehicles, and both gas and diesel engines. Whether you drive a domestic sedan, a European import, or a diesel truck, our ASE-certified technicians can handle the diagnostic and repair.
Your Local Christian Brothers Amenities
FAQs
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Q. "What is the difference between a steadily lit and a flashing check engine light?"A steadily lit light means that a sensor is sending a signal to your vehicle's computer that something is wrong or it could simply mean that the sensor is out. If your check engine light is flashing, however, that means there is a serious issue and you should stop driving immediately.
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Q. "Why is my check engine light on but nothing seems to be wrong with my vehicle?"If nothing within your vehicle stands out, then it is possible that it is just a minor issue such as a loose gas cap or a bad O2 sensor. It is still recommended to see a mechanic if the light doesn't disappear to check for any larger issues.
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Q. "Do you offer a warranty?"As part of our Nice difference.® commitment to providing our customers the best auto service experience possible, we also offer a3-year/36,000-mile warranty on all the work that we do. We offer this warranty at every Christian Brothers Automotive nationwide, and it will be honored at any location, regardless of which branch did the initial work.
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Q. "Can you provide service under my extended warranty?"Yes. At Christian Brothers Automotive, we work with all major extended warranty providers to make needed repairs for our customers. If you have an extended warranty, you can discuss your carrier with our team when scheduling an appointment and confirm that the work will be covered. You can find a partial list of the extended warranty companies we work with here.
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Q. "What to do if your check engine light turns on?"We recommend heading to your local auto shop as soon as you are able. This is typically a sign that there is an abnormality within your engine.
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Q. "Is it safe to drive your car when the check engine light is on?"It depends. If you are experiencing other noticeable issues with your vehicle, it may be best to pull over. Otherwise, it is typically okay to drive to your local auto shop. You will want to get this checked sooner rather than later to avoid being stranded with a broken-down car.
Have more Questions?
Our friendly auto service experts have the answers.
Call your local Christian Brothers Automotive car shop today
Hear What Our Customers Had to Say About Us
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"I liked the customer service and going above and beyond to make sure I was comfortable while waiting in the store for my vehicle work to be done, specifically being offered a nice hot coffee with creamer."
- J.L.