Key Is Not Recognized -- Car Won't Start - Page 2 - Hyundai Forums : Hyundai Forum
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#11 Old 10-05-2012, 09:35 PM
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Question Chip in key not recognized by car

I have had my 2009 Elantra touring since new. It has just begun to refuse to recognize the chip in the key. We never ever used the spare key that came with the car, and it refuses to recognize that key too. The dealer reprogrammed the car and both keys, and here we are less than a week later, and the same problem! We don't have cell phones, we don't have other keys with chips and we don't have a remote starter. The dealer says that reprogramming everything should do it. Personally, I think it has to be a problem with the receiver (computer) in the dash. Do any others have this experience, and what was it?
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#12 Old 10-06-2012, 11:59 AM
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I place my bet on a faulty antenna. It's basically coil around the ignition switch that emits a signal to the chip in the key. If the chip responds with the correct code, the coil sends a signal to the security system that all is good. The odds of you having two bad keys are pretty slim.
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#13 Old 12-06-2012, 07:16 PM
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Had this exact problem a time or two when I had my '07 Santa fe, Called up the dealer and the lead Tech said the antenna, he'd seen it a few times.

His advise was to gently tap on the ring around the ignition switch with something hard, worked like a charm. He said they become unseated occasionally.
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#14 Old 09-29-2014, 01:42 AM
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Unhappy

I have the same problème with my 2011 elantra touring....

both of the antenna and the receiver have been replaced by hundai less than a yaer ago...

and the problème is back...

i will caal hyundai again...it's verry frustrating
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#15 Old 09-29-2014, 09:54 AM
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After decades that is one option (remote starting) that no OEM I know has ever put into a vehicles. There has to be a reason. Sometimes on cold winter mornings it would come in handy but I never had one put in. Nor will at this point either. The electronics are far to complex as it is. If something goes south few dealer tech could sort it out again. I just mosey out and get fresh air along with a cold blast of air up my shorts (since I am not dressed properly yet. LOL

2008 Sante Fe AWD Limited
3.3L Engine 88,xxxkm @ purchase
Currently 93,000km and going
CLASS III CURT Hitch
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