Toyota 2012 Highlander Owner's Manual page 286

3-2. Using the audio system
■
Lens cleaners
Do not use lens cleaners. Doing so may damage the CD player.
NOTICE
■
CDs and adapters that cannot be used
Do not use the following types of CDs, 3 in. (8 cm) CD adapters or Dual
Disc.
Doing so may damage the CD player and/or the CD insert/eject function.
310
●
CDs that have a diameter that is not 4.7
in. (12 cm)
●
Low-quality and deformed CDs