While in the elementary school carline this morning, waiting to drop my kids off at school, my brakes completely failed unexpectedly, causing me to roll into the SUV in front of me. The line in the mornings is long and slow moving and I was stopped behind several other cars also waiting to drop their kids off â letting off the break and re-engaging the break to move forward as the line progressed. Halfway through the carline, I pushed on my break as the car in front of me had come to another complete stop, however, my break never engaged and my Wagoneer continued to roll forward without any warning or rationale. I continued to frantically push on my brakes trying to get my car to stop without them ever engaging and I rolled directly into the back of the SUV in front of me. I ultimately had to turn the gear to 'Park' to prevent the car from continuing to move forward. After sitting for a second and shifting it back into Drive, I did not experience another issue, however drove straight home and have not driven it again out of fear. My brake fluid was replaced less than 3 months ago and my pads and rotors are in great shape. There is zero reason this could have happened. I have an appointment with the mechanic (Corwin Jeep) tomorrow morning to look into the issue. Thankfully no damage was done to either car based on how slowly we were moving (1-2mph) but I cannot stress enough how catastrophic this could have been had a child been walking in front of my car, or had I bee