Toyota Sienna navigation screen DVD playback issue when emergency brake is engaged on Toyota Sienna

Some Toyota Sienna owners report experiencing issues with DVD playback on the navigation screen due to the vehicle's parking brake system, which requires engagement for playback to function. In older models, this requirement is particularly strict, and failure to engage the parking brake can result in a black drop-down screen despite the DVD player functioning properly. Some users have discovered workarounds to bypass the emergency brake requirement for viewing while driving, and others have successfully streamed video content from an iPhone app without needing the brake engaged. However, if the parking brake remains engaged while driving, it may trigger a warning about a malfunction in the brake system, necessitating immediate attention and consultation with a Toyota dealer.