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Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem, check that the warning message and light go off. ...

Maintenance and Lexus Warranty Coverage
Maintaining your vehicle according to the recommendations in this booklet is required to ensure that your warranty coverage remains intact. You should keep detailed records of vehicle maintenance, ...

Engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on the reservoir when the engine is cold. 1. Reservoir cap 2. Full 3. Low If the level is on or below the “L� ...