Brake Problem please help

Ive read about the brake switch sensor and the battery having a low voltage reading but never received any of those error messages up until now.
The car is sitting at his house so any advice or tips would be greatly appreciated.

Ive read about the brake switch sensor and the battery having a low voltage reading but never received any of those error messages up until now.
The car is sitting at his house so any advice or tips would be greatly appreciated.





