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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 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.
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.
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!2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Flushing the coolant in your car is not that hard and will extend the life of your engine tremendously - learn how here!2009 Hyundai Sonata GLS 2.4L 4 Cyl.
On many cars, the high beam bulb runs at reduced power during the day - check 'em and change 'em!2009 Hyundai Sonata GLS 2.4L 4 Cyl.
Animals love the sweet smell of antifreeze, too bad it's toxic! Fix your minor leaks2009 Hyundai Sonata GLS 2.4L 4 Cyl.