2003 Lexus LS430 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Lexus LS430
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2003 Lexus LS430 ProblemsVolume Control Problems With Premiun Stereo System
Vehicles equipped with premium Mark Levinson stereo may experience no sound or volume that goes to maximum level by itself. An improved amplifier is available to rectify this problem.
The Check Engine Light may illuminate due to an O2 sensor heater fault. Most commonly the affected O2 sensor will need to be replaced to correct this concern.
Various issues may develop with the multi-display panel. Our technicians tell us a redesigned multi-display panel is available which may correct these concerns.
2003 Lexus LS430 Questionsfaulty door key receiver (1 answer)
The "electronic receiver" that responds to the commands from the door key buttons needs to be replaced.
The trunk is now heavy and slams shut quickly.