Please perform the following troubleshooting steps:
1) Fully shut down your console.
2) After 30 seconds of the console being shut down, restart the console.
3) Launch GTAV.
4) When launching GTAV, wait until a black screen appears after the initial splash art has disappeared, and hold down L1+R1 throughout the opening scenes.
5) If successful, you will be prompted to re-calibrate your language and brightness options.