My daughter recently experienced a braking system failure in our 2015 Honda CR-V EX while backing down a steep driveway. She has reversed the car down the same driveway many times in the past without incident. This time, she was unable to stop the vehicle, despite pushing on the brake pedal as hard as she could. The brake pedal was very firm while she was pushing on it, even though the car remained running throughout the incident. Fortunately, nobody was injured and the car stopped after jumping a curb and hitting a dirt embankment. She was able to use the rear-view camera to navigate the CR-V down the driveway and across the road to its final stopping point, narrowly avoiding hitting an oncoming car. Upon inspection, our local Honda dealership could not find any problems with the braking system. The pedal is no longer hard to push and the brakes are working normally again. Given the symptoms and the information my dealership provided, I requested a replacement of the brake booster. However, no cause for the failure was identified and the dealership did not provide any repair recommendation since the problem is not reproducible. Here's brief answers to the specific questions presented on the NHTSA vehicle complaint form: - What component or system failed or malfunctioned? Brakes - Is it available for inspection upon request? Yes - How was your safety or the safety of others put at risk? My daughter was unable to stop the vehicle with the brakes and almost hit an