2004 Lexus RX 330 Owners Manual - Page 508

STARTING AND DRIVING (g) Conventional cruise control mode failure warning If there is trouble in the conventional cruise control mode, the "CRUISE" indicator light in the instrument cluster flashes, the master warning light comes on and the alarm sounds, the warning code "E3" will appear on the display. If a system malfunction is detected when the conventional cruise control mode is in the ready mode or operating, the master warning light comes on, an alarm sounds and the above code appears. If this code appears, press the "ON-OFF" button to turn the system off and then push it again to turn it on. If the setting still cannot be made or the same code appears again, the system might have malfunctioned. Although there is no problem to continue driving, please contact your Lexus dealer. ELECTRONICALLY MODULATED AIR SUSPENSION " 1 Easy access mode switch 2 Height control switch 3 Height select switch 485