See also:

Clearing the programmed information
Individual buttons cannot be cleared. However, to clear all programming, press and hold the two outside buttons and release when the indicator light begins to flash (approximately 20 seconds). ...

Freeing a frozen door lock
To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole or use the remote keyless entry keyfob. ...

Digital Versatile Disc (DVD) Player Operation (models with Navigation System)
Precautions Start the engine when using the DVD entertainment system. Movies will not be shown on the front display while the vehicle is in any drive position to reduce driver distraction. Audi ...