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592 7-2. Maintenance RX450h_RX450hL_U The OBD system determines that a problem exists somewhere in the emission ● When the 12-volt battery is disconnected or discharged ● When the fuel tank cap is loose The error code in the OBD system will not be cleared unless the vehicle is driven Contact your Lexus dealer to prepare the vehicle for re-testing. Emission inspection and maintenance (I/M) programs Some states have vehicle emission inspection programs which include OBD If the malfunction indicator lamp comes on Your vehicle may not pass the I/M test in the following situations: When the malfunction indicator lamp still remains on after several driv- If your vehicle does not pass the I/M test |