Emissioinspectioand maintenance (I/M) programs

Lexus LX / Lexus LX Owners Manuals / Maintenance and care / Maintenance / Emissioinspectioand maintenance (I/M) programs

Some states have vehicle emission inspection programs which include OBD (On Board Diagnostics) checks. The OBD system monitors the operation of the emission control system.

- If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in the emission control system. Your vehicle may not pass the I/M test and may need to be repaired. Contact your Lexus dealer to service the vehicle.

- Your vehicle may not pass the I/M test:
l When the battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.

Also, depending on your driving habits, the readiness codes may not be completely set.

l When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary malfunction and your vehicle may not pass the I/M test.

- When the malfunction indicator lamp goes off after several driving trips
The error code in the OBD system will not be cleared unless the vehicle is driven 40 or more times.

- If your vehicle does not pass the I/M test

    See also:

    Address book
    Navigation settings Points or areas on the map can be registered. The registered points can be used on the “Destination” screen. Registered areas to avoid, will be avoided when the system ...

    Off-road driving
    When driving your vehicle off-road, please observe the following precau- tions to ensure your driving enjoyment and to help prevent the closure of areas to off-road vehicles: • Drive your vehic ...

    If the engine will not start
    If the engine will not start even though correct starting procedures are being followed , consider each of the following points: One of the following may be the cause of the problem: • There may ...