The most likely culprit if Your 2015 Hyundai Santa Fe's steering wheel controls fail to work is the clockspring. This can be particularly dangerous, because while it controls some auxiliary functions (on Your stereo, for instance), it also controls some functionality of the driver's side airbag. It's recommended that You get this replaced as soon as possible. Unfortunately, the repair can be a little bit expensive. If You get the clockspring replacement done through a mechanic, You're looking at upwards of $300 -- and more likely in the $350 range. Some DIYers will opt to do it themselves. I was able to find the part online for just over $140, but You might expect to pay anywhere up to $250. But seriously, even if the steering wheel controls don't bother You that much, get this taken care of ASAP -- Your airbag also depends on it.
It's most likely the clock spring. It controls the buttons on your steering wheel. Some or all of the buttons on your steering will may go out but some may still work. The clock spring can affect your horn but mostly can keep your airbag from deploying if you get into an accident. Your airbag light might also be on from this. It is a safety issue that is happening to a lot of Hyundais. It's a safety problem. Peoples airbags are not deploying and they are getting hurt and killed. Call Hyundai.
Javier C
July 16, 2020
The most likely cause of your 2015 hyundai santa fe steering wheel controls malfunctioning is a bad clock spring or control module.
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