One problem related to brake master cylinder has been reported for the 2018 Toyota Highlander. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Toyota Highlander based on all problems reported for the 2018 Highlander.
Our Toyota Highlander started showing symptoms of "soft brake pedal" in 4. 2019 - nothing was found on diagnostic at dealership. Symptoms of "soft brake pedal continued to happen. Vehicle went into dealership again in 7. 2019 and was diagnosed w/master cylinder brake fitting loose - fitting tightened and brake system flushed. Symptoms returned within 2 days and was brought back to dealership - case opened with Toyota engineering and master cylinder replaced. Picked up vehicle following day but symptoms of "soft brake pedal" returned 2 days later. Replication of "soft brake pedal" unable. To be replicated/diagnosed at dealership. Vehicle still "unsafe and hazardous" to drive. Awaiting follow up with Toyota.
| Service Brakes problems | |
| Brake Master Cylinder problems | |
| Brakes Failed problems | |
| Brake Hoses, Lines/piping, And Fittings problems | |
| Brake Light On problems |