See also:

Disc Errors
If the DVD player is unable to read the disc, a Disc Error message is displayed on the VES™ and Radio displays and the disc is automatically ejected.Adirty, damaged, or incompatible disc form ...

Voice Command System (Radio) — If Equipped
Refer to “Voice Command” in “Understanding The Features Of Your Vehicle”. ...

Rear Door Removal (Four-Door Models)
WARNING! Do not drive your vehicle on public roads with the doors removed as you will lose the protection that they can provide. This procedure is furnished for use during off-road operation only ...