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A check engine light can indicate a broad spectrum of problems with your 2010 Mazda 3. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. The video above shows how to locate the on board diagnostics (OBD) plug on your 2010 3, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your 3.
Intermittent Check Engine Light: If the check engine light on your 2010 3 is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. Steady Check Engine Light: If your check engine light is on every time you operate your 3, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises. Flashing Check Engine Light: If your check engine light is flashing, stop driving your 3 and have it towed to your nearest mechanic - you probably have a very serious problem with your car and you risk ruining your engine by driving it. If you are unsure about what your diagnostic trouble codes mean; have your 3 diagnosed by a professional automotive technician.
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!2010 Mazda 3 i 2.0L 4 Cyl.
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2010 Mazda 3 i 2.0L 4 Cyl.
If your transmission is running low on fluid, be sure to add some - find out how to do this here!2010 Mazda 3 i 2.0L 4 Cyl.
If you have an electrical component that doesn't work, try replacing the fuse first2010 Mazda 3 i 2.0L 4 Cyl.
Harsh downshifts? Slipping gears? You might be low on transmission fluid2010 Mazda 3 i 2.0L 4 Cyl.
On many cars, the high beam bulb runs at reduced power during the day - check 'em and change 'em!2010 Mazda 3 i 2.0L 4 Cyl.