Lexus GX470 2004 Owner's Manual page 301

AUDIO
(c) Selecting a desired track
"TRACK" button: Use for direct access to a desired track.
Push the " " or " " (TUNE/TRACK) button several times until
the desired track number appears on the display. As you
release the button, the player will start playing the selected
track from the beginning.
"Fast forward" button:
Push the " " (TUNE/TRACK) and hold it to fast forward the
disc. When you release the button, the compact disc player will
resume playing from that position.
"Reverse" button:
Push the " " (TUNE/TRACK) and hold it to reverse the disc.
When you release the button, the compact disc player will
resume playing.
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(d) If the player malfunctions
If the player or another unit equipped with the player
malfunctions, your audio system will display one of the four
following error messages.
If "WAIT" appears on the display: It indicates that the inside
of the player unit may be too hot due to the very high ambient
temperature. Remove the disc from the player and allow the
player to cool down.
If "ERROR 1" appears on the display: It indicates that the
disc is dirty, damaged, or it was inserted up-side down. Clean
the disc or insert it correctly.
If "ERROR 3" or "ERROR 4" appears on the display: It
indicates there is a trouble inside the system. Eject the disc.
If the malfunction is not rectified: Take your vehicle to your
Lexus dealer.