One problem related to brake master cylinder has been reported for the 2016 Toyota RAV4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Toyota RAV4 based on all problems reported for the 2016 RAV4.
This is a follow up to report 10995701. After Toyota refused to do any repairs to the car, I replaced the master cylinder myself. I took the master cylinder apart and found an unusual machining pattern within the master cylinder that could potentially affect the seals. There are three "gouge" patterns machined 120 degrees apart extending about 1" down. These patterns slightly intrude into the groove for the seal and may effect the sealing integrity.