Two problems related to brake light on have been reported for the 2017 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2017 Ford Expedition based on all problems reported for the 2017 Expedition.
Started car, apply brake to shift into gear. All of the sudden, the brake pedal went straight to the floor and the low brake fluid light came on and the car started to roll so I applied the emergency brake to stop the vehicle. And put back into park.
After driving in moderate rain for 15 miles and then braking in moderate rain, a loud grinding noise was heard, brake pedal became hard and no braking action was available. I was able to safely get the vehicle to the shoulder and come to a top using uphill grade of the road way. The vehicle was taken to the woodhouse Ford dealership in blair, ne. Brake message light was on. The service technician wrote the following: "usind ids found code c109d-20 as the only code stored. Performed vacuum system checks. Checked for leaks through lines, passed. Tested vacuum supply from intake at idle, about 19". Tested vacuum from vacuum pump, found vacuum pump to intermit fail to produce vacuum. Hoisted vehicle, removed and replaced vacuum pump. Reassembled vacuum lines and roa tested vehicle to verify repair. Post road test vehicle brake system functions properly at this time with normal pedal feel. ".