On-Board Diagnostics (OBD)
Car Care — What You Can Do
Do you service your vehicle on a regular basis? If not, you should consider doing so. You'll be doing yourself—and the environment—a big favor. Without routine maintenance, minor problems not easily detected by sight or sound can lead to poor performance, increased emissions, and expensive repairs. This is where your vehicle's OBD system plays a pivotal role. By immediately notifying you of a potential problem with your vehicle, your "Check Engine" light helps keep your automobile performing at its optimal level.
To learn more about general car care practices, including ways to reduce your vehicle's emissions, explore the links below.
NOTE: You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.
- Fact Sheet: Automobile Emissions: An Overview (PDF) (4 pp, 79K, EPA400-F-92-007, revised September 2012)
Learn the basics of automobile emissions and what is being done to reduce them. - Clean Cars — Clean Air: Consumer Guide to Inspection/Maintenance Programs (PDF) (6 pp, 106K, revised September 2012)
Learn more about the role of state inspection and maintenance programs in keeping our air clean. Also, test your knowledge about air pollution and emissions testing. - Fact Sheet: Your Car and Clean Air: What YOU Can Do To Reduce Pollution (EPA420-F-93-002, August 1994)
Discover the three basic steps you can take to reduce your car's contribution to air pollution. - Green Vehicle Guide
If you're thinking of purchasing a vehicle, use this guide to find a clean and fuel-efficient vehicle that meets your needs. - Car Care Council's "Be Car Care Aware Campaign"
Take an active role and learn how to properly maintain your vehicle. - How To Find Your Way Under The Hood and Around the Car
Learn the 14 most important things the Car Care Council advises you to do to keep your vehicle in top shape. - Find a Repair Shop
Unsure of where to take your vehicle for service? Just enter your zip code and the Car Care Council will find you an automotive service shop in your area! Another great resource for finding a shop is the Automotive Service Association.