2017 Ford Expedition brakes problems

Exiting the 215 northbound, we stopped and parked at a store. While parked the indicator light came on for low tire pressure. I did not pay that much attention because the car indicator light has come on before and the car had recently had its routine maintenance check. When driving was resumed the car began to wobble. Assuming we had a flat, we attempted to drive to a more illuminated area to inspect the car and call road side services.

The contact owns a 2017 Ford Expedition. The contact stated that while driving at slow speeds during the snow, the vehicle slid on the icy road. The brake pedal was depressed, but the vehicle failed to respond. Due to the failure, the vehicle crashed into the guardrail and came to a stop. The contact stated that the air bags did not deploy. The contact was unsure if there was a warning light illuminated. The vehicle was taken to a dealer; however, no cause for the failure was found.