Solved Why Is My Trackpad Stiff Macbook Pro 15 Retina Display Late 2013

Chosen Solution

Serial number- C02MF0AKFR1M The trackpad is a little hard to operate, seems stiff to press/click. What may be the cause, and what may need to be replaced? Everything else works fine. Battery has gone through 300 cycles. Thanks!

Examine the battery for swelling. MacBook Pro 15" Retina Display Late 2013 Battery Replacement