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 in the following situations:
When the 12-volt 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 indicating a temporary malfunction and your vehicle may not pass the I/M test.
When the malfunction indicator lamp still remains on 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:
Safety
Even with the issues Consumer Reports raised and the sales halt that
followed, the federal government has not yet crash-tested the GX. Nor has it
issued a rollover rating. Most large SUVs, like th ...
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct
procedures
as given in these sections.
CAUTION:
The engine compartment contains many mechanisms and fluids that may move ...
Cruise control
Use the cruise control to maintain a set speed without using the
accelerator.
Set the vehicle speed
Turn the “ON-OFF” button ON.
Push the button once more to
deactivate the cruise control.
...