2004 Hyundai Elantra Owner's Manual - Page 21

1 FEATURES OF YOUR HYUNDAI 10 B070F01O-AAT B070E02HP-GAT KEYLESS ENTRY SYSTEM (If installed) Locking doors 1. Close all doors. 2. Push the "LOCK" button on the transmitter. 3. At the same time all doors lock, the turn signal lights will blink once to indicate that the system is armed. Replacing the battery When the transmitter's battery begins to get weak, it may take several pushes on the button to lock or unlock the doors, and the LED will not light. Replace the battery as soon as possible. Battery type : CR2032 Replacement instructions: Case Unlocking doors 1. Push the "UNLOCK" button on the transmitter. 2. At the same time the driver's door unlocks, the turn signal lights will blink twice to indicate that the system is disarmed. Battery MSO-0048-2 NOTE: If you wish to unlock all doors, press the "UNLOCK" button on the transmitter again within 4 seconds. Screwdriver MSO-0048-1 2. Remove the old battery from the case and note the polarity. Make sure the polarity of the new battery is the same(+side facing down), then insert it in the transmitter. 1. Separate the case with a blade screwdriver as shown in the illustration.