2005 Lexus LS 430 Owners Manual - Page 138

GAUGES, METERS AND SERVICE REMINDER INDICATORS w267 When the air conditioning filter should be replaced, the master warning light comes on, a warning tone sounds and the above message appears. If the "Change A/C Filter" appears on the multi−information display, change the air conditioning filter as soon as possible because the air filter might have clogged. See "Replacing the air conditioning filter" on page 250 for details. w500 If you push the ignition switch or insert the smart key, and hold the switch or key in the "LOCK" position for more than 3 seconds, the master warning light comes on, a warning tone sounds and the above message appears. If you release the switch or key, or turn to "ACC", all the warning will turn off. If it is difficult to turn the switch or key, be sure to push the switch or key while turning the steering wheel slightly in either direction, and then turn the switch or key. w268 w271 If you push the "OFF" button for the front air conditioning for about more than 4 seconds after the replacement of the air conditioning filters, the above message appears and the attention tone sounds to inform you that the data has been reset. When you push the "OFF" button for the front air conditioning for more than 4 seconds before "Change A/C Filter" appears, the data will be cleared. Do not reset the data before this message appears. If the interlock cable for steering lock is faulty, the master warning light flashes, a warning tone sounds and the above message appears. If the above message appears, contact your Lexus dealer as soon as possible. 99