Hello, I tried to find a post to see if any other Santa Fe owners had a spongy brake pedal..and there were no others..... hard to imagine.
Anyway we own 2 Santa Fe's his and hers. My wifes 2010 has a spongy brake pedal and I wonder if there were any issues with the master cylinder
on these. No other leaks found. My 2008 still has a firm pedal. She has 51k on hers.
Ronster

 

How many miles are on the pads and brake fluid?

 

Hello,

In responce to question, we have 51K on vehicle/pads. Brake
fluid looks good topped out to max line.

 

The pads probably need replacing and I'd suggest flushing the brake fluid as well.