2004 Lexus LS 430 User Guide 2 - Page 55

KEYS AND DOORS The operational range of the wireless remote control is approximately 1 m (3 ft.). The effective range may vary with different conditions. To activate the wireless remote control without fail, do it approximately 1 m (3 ft.) from your Lexus. In the following cases, the battery in the key may be discharged. If this is a case, replace the battery using a special screwdriver. For the key of Type A, we recommend that you have the battery replaced by your Lexus dealer to prevent the key from being damaged. 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 of the Type B key, see "Replacing the battery" on page 44. You can also have the battery of the key replaced by your Lexus dealer. If you lose the wireless function key, contact your Lexus dealer as soon as possible to avoid the possibility of theft, or an accident. (See "If you lose your keys or lock yourself out" on page 420.) If your vehicle is equipped with smart key system, you can use up to 5 master keys and 3 sub keys for the same vehicle. In case of the vehicle not equipped with smart key system, up to 4 master keys are available. Contact your Lexus dealer for detailed information. The wireless remote control function 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 function 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. 37