seat belt and battery light have started blinking

2007 HYUNDAI SANTA FE
130,000 MILES
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HONEYCOMB99
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My 2007 hyundai santa fe's Not consistent and not in sync with each other. I replaced the battery, but it is still doing it. ??

Thurday on the way home from work my battery light and seat belt light started blinking. It happened the whole way home and was never really consistent. On and off. Sometimes together but not in sync, and sometimes it was just one or the other.

They would go off and then there wasn't a consistent time in between when it would come back on. I noticed it was more constant when I was at a higher speed. I took it to the place where I got my battery because it was still under warranty. They said it was my battery and replaced it with brand new one. As soon as I get out of the parking lot, the lights start blinking again.

What's the problem? Is it just a short somewhere? I was in the middle of looking for a new car and I don't want to spend any more money on this one, but I don't want to get less for a trade in if it's not a big problem. The car rides perfect and starts perfect.
Apr 22, 2012 at 4:36 PM
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STRAILER
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There must be a trouble code stored. Let run the codes to see whats comes up

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
Jan 26, 2018 at 11:11 AM