One problem related to brake master cylinder has been reported for the 2011 Hyundai Elantra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Elantra based on all problems reported for the 2011 Elantra.
Brake peddle seems to collapse partially when I apply the brakes as if the master cylinder is failing, but it remains an issue even with a new master cylinder. I have been told it has something to do with the abs system.