1999 Lexus SC 400 Owners Manual - Page 38

KEYS AND DOORS In the following cases, the battery in the key may be discharged. If this is a case, replace it using a special screwdriver. D The remote control does not work. D The operational range of wireless remote control becomes extremely short. D The indicator light on the key is dimmed or does not come on. For the replacement of the battery, see "Replacing the battery" on page 25. You can also have the battery of the key replaced by your Lexus dealer. If you lose the wireless key, contact your Lexus dealer as soon as possible to avoid the possibility of theft, or an accident. You can use up to 4 wireless remote control keys for the same vehicle. Contact your Lexus dealer for detailed information. The wireless remote control key is an electronic component. Observe the following instructions in order not to cause damage to the key. D Do not leave the wireless remote control key on places where the temperature becomes high such as on the dashboard. D Do not disassemble it. D Avoid knocking it hard against other objects or dropping it. D Avoid putting it in water. 20 Locking/Unlocking the doors When you push the "LOCK" button on the key briefly, all the doors can be locked from outside the vehicle. At this time, you can hear one beep. However, when you push the "LOCK" button with any door not closed securely, the buzzer sounds for 10 seconds. To stop the buzzer, close all the doors securely or push the "UNLOCK" button. If the key is in the ignition switch, locking cannot be done. Make sure all the doors are locked when you leave the vehicle. Push the "LOCK" button once again. If they were already locked, the turn signal lights will flash. NOTICE Do not push the "LOCK" button any longer than 2 to 3 seconds. Pushing the button longer activates an alarm. For details, see page 22. When you push the "UNLOCK" button, the driver's door is unlocked. Pushing that button once again within 3 seconds from the first push, all other doors are also unlocked.