2003 Lexus GS300 Problems
RepairPal has identified the most common problems with the 2003 Lexus GS300 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.Refine by vehicle
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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.