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A check engine light can indicate a broad spectrum of problems with your 2009 Hyundai Sonata. 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 2009 Sonata, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your Sonata.
Intermittent Check Engine Light: If the check engine light on your 2009 Sonata 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 Sonata, 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 Sonata 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 Sonata diagnosed by a professional automotive technician.
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2009 Hyundai Sonata GLS 2.4L 4 Cyl.
If you have an electrical component that doesn't work, try replacing the fuse first2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Harsh downshifts? Slipping gears? You might be low on transmission fluid2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Burnt out brake lights increase your chance of getting rear ended - check and change yours today2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Small bulbs that burn out regularly - did you know you can replace these with LED lights?2009 Hyundai Sonata GLS 2.4L 4 Cyl.
White light when you back up - yup, they burn out and you can replace them with bright LEDs2009 Hyundai Sonata GLS 2.4L 4 Cyl.