Frequently Asked Questions

  • What's the difference between OEM and aftermarket car keys?

    OEM keys are manufactured to exact specifications of the vehicle’s original maker and ensure precise compatibility with your car’s electronic system, while aftermarket keys may have inconsistent quality and shorter lifespans. At ATD Automotive Locksmith, we use OEM keys to deliver reliable long-term

    performance and accurate programming for your vehicle.

  • How does mobile car key programming work on-site?

    A mobile locksmith arrives with advanced diagnostic and programming equipment to cut and pair your new key or remote directly to your vehicle’s system without needing a tow. At ATD Automotive Locksmith, we program transponder keys and FOBs for most vehicles, using OEM parts to ensure proper chip recognition and module compatibility. 

  • When should I call a locksmith instead of a dealership for key replacement?

    Call a mobile locksmith when you need faster service, on-site convenience, or want to avoid dealership wait times and towing fees. ATD Automotive Locksmith serves Atlanta and McDonough with key programming and replacement, (same day service available depending on availability), especially helpful for commuters stranded along I-75 or I-85 needing

    roadside solutions.

  • Can all car remotes be programmed to any vehicle?

    No, remotes must match your vehicle’s make, model and year for a proper pairing with the onboard computer. At ATD Automotive Locksmith we can handle programming on most American and Asian make and models. If you’ve got a European vehicle we advise customers to call for compatibility.

  • What is module flashing and when is it needed?

    Module flashing, also known as module programming or module reprogramming, is the process of updating or reprogramming a vehicle's computer system to ensure it runs efficiently and meets the manufacturer's specifications. This process is often necessary when software updates, postreplacement, emission compliance or performance issues.

  • Why do transponder keys stop working over time?

    Transponder chips can fail due to physical damage, battery depletion in the fob, or signal interference from wear and frequent use. In high-traffic areas like Atlanta and Jonesboro, daily use accelerates key wear. At ATD Automotive Locksmith, we diagnose chip failures and provide OEM replacement keys programmed accurately to your vehicle.

  • How do I know if my car is compatible with mobile locksmith services?

     All vehicles are compatible with mobile locksmith services, the main difference is what each mobile locksmith can service. There are many scammers out there, verify that your mobile locksmith has a website, offers OEM keys and is registered with the state as a business before booking an

    appointment. 

  • What's the biggest mistake people make after losing car keys?

    Getting a second key made, many times it is easier and less expensive to make a copy of a key than creating one from nothing. Many drivers also

    assume they must tow their vehicle to a dealership, which wastes time and money. Mobile locksmiths like ATD Automotive Locksmith can cut and

    program OEM keys on-site, eliminating towing costs and reducing downtime. 

  • Do lockout services damage my car's door or lock?

    Professional locksmiths use non-destructive entry tools designed to unlock vehicles without harming doors, seals, or locking mechanisms. At ATD Automotive Locksmith, we prioritize safe vehicle access for lockout assistance across Atlanta and surrounding areas, protecting your car while getting you back inside quickly.

  • Why do dealerships prefer OEM keys for trade-ins and inventory?

    OEM keys ensure retail-quality reliability, reduce customer complaints, and meet manufacturer standards for resale vehicles. Dealerships in Atlanta, Fayetteville, and Conyers rely on ATD Automotive Locksmith for fast on-lot programming and OEM key replacement to keep inventory front-line ready and minimize lot downtime.

  • Can a locksmith program a used or spare remote I already own?

     Yes, if the remote matches your vehicle’s system and hasn’t been damaged, a locksmith can pair it to your car’s system. At ATD Automotive Locksmith, we

    verify compatibility and program existing OEM remotes, helping Atlanta-area customers save money when a spare is still functional.

  • What should I do if my key turns but the car won't start?

    This often indicates a transponder chip failure or lost communication between the key and ignition system. At ATD Automotive Locksmith, we diagnose chip and module issues on-site and reprogram or replace OEM keys to restore proper ignition function for supported vehicles across South Atlanta.