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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.
If your transmission is running low on fluid, be sure to add some - find out how to do this here!2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Unlike a waist belt, these usually become looser as they age! Learn how to check it here2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Coolant hoses wear out over time and need to be replaced - check 'em early and often2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Avoid tickets and accidents with both working headlights! New bulbs are much brighter too2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Do you ever get into your friend's car and notice a bad smell? A dirty cabin air filter could be the culprit2009 Hyundai Sonata GLS 2.4L 4 Cyl.
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2009 Hyundai Sonata GLS 2.4L 4 Cyl.