Emission inspection and 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:
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.
- 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
Contact your Lexus dealer to prepare the vehicle for re-testing.
See also:
Electronic key battery
Replace the battery with a new one if it is discharged.
You will need the following items:
Flathead screwdriver.
Small Phillips-head screwdriver.
Lithium battery (CR1632).
Replacing the battery
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Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the
temperature
setting.
- Vehicles with a navigation system.
Owners of models equipped with a navigation system should refer to
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Review: 2010 Lexus ES 350
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