Here's the proper procedure:
1. Diagnose the problem: Take your Infiniti I35 to a trusted mechanic or use an OBD-II code reader. The code reader will give you a trouble code (a number or letter combination) that indicates the specific problem. Many auto parts stores will read the code for free.
2. Fix the problem: Once you know the trouble code, you can research the problem online or consult a repair manual. Fix the underlying issue causing the light to illuminate. This might be something simple like replacing a sensor or something more complex requiring professional attention.
3. Clear the code (after repair): After you've repaired the problem, you can clear the trouble code. There are a few ways to do this:
* OBD-II code reader: Most code readers have a "clear codes" function.
* Disconnect the battery: Disconnect the negative (-) battery terminal for about 15-20 minutes. This often resets the system, but it's not guaranteed to work on all issues. Note: This will also reset your radio presets and possibly other settings.
Important Considerations:
* Don't just reset the light: Simply clearing the code without fixing the problem won't solve anything. The light will likely come back on, and the underlying issue could cause further damage.
* Professional help: If you're not comfortable diagnosing or repairing the problem yourself, take your car to a qualified mechanic.
* Safety: If the problem is causing a safety hazard (like a malfunctioning brake system), don't drive the car until it's repaired.
Resetting the service engine light is the *last* step, not the first. Focus on identifying and fixing the underlying cause first.
