Brake Sensor problems of the 2005 GMC Savana

The contact owns a 2005 GMC Savana 1500. While the vehicle was parked, the contact checked the spare tire. While using the jack, the spare tire only came down six inches. The contact was unable to get the spare tire back up again. The vehicle was taken to a local repair shop where the cable was cut to get the spare tire off; it was then placed in the rear of the van. The contact also stated that the brakes functioned poorly; the pedal was very low. The vehicle was taken to an authorized dealer who stated that the brakes worked fine. The vehicle was then taken to a local repair shop where the contact was informed that left sensor on the left front wheel needed to be replaced. The mechanic replaced the hub assembly and replaced the rotor on the rear wheels. The rear plates on the rear wheels were also rusted which caused brake failure. The vehicle was repaired. The failure mileage was approximately 56,000 and the current mileage was approximately 60,000.