2004 Toyota 4Runner Owners Manual - Page 218

'04 4Runner_U (L/O 0308) "ERR 3": There is a problem inside the system. Eject the disc or magazine. Set the disc or magazine again. "ERR 4": Over- current. Ask your Toyota dealer to inspect. "OPEN": The compact disc changer lid of separate unit is open. Close the compact disc changer lid. If the malfunction still exists, take your vehicle to your Toyota dealer. 4. "OFF" button Push "OFF" button to turn off the rear seat audio system. REPLACING CONTROLLER BATTERY For replacement, use a CR2025 lithium battery or equivalent. CAUTION Special care should be taken that small children do not swallow the removed battery or components. NOTICE z When replacing the battery, be careful not to lose the components. z Replace only with the same or equivalent type of battery recommended by a Toyota dealer. z Dispose of used batteries according to the local regulations. Replace the battery by using the following procedures: 1. Pull the case out while pushing the lock release button to the side. 218 2004 4RUNNER from Aug. '03 Prod. (OM35811U)