2002 Chevy Monte Carlo change engine oil light wont reset I have tried the method suggested which was turn key on pat accelerator 3 times within 5 seconds then off start engine?

The "turn the key on, press the accelerator three times, then off" method is a common trick, but it doesn't work on all vehicles, and definitely not consistently on all model years of the Chevy Monte Carlo. The oil life system in your 2002 Monte Carlo is likely more sophisticated than a simple accelerator pedal trick can reset.

Here's what you should try:

* Check the Oil Level: Before doing anything else, verify your oil level is actually correct. An inaccurate reading from the dipstick can trigger the light.

* OBD-II Scanner: The most reliable method is to use an OBD-II scanner. These inexpensive tools plug into your car's diagnostic port (usually under the dashboard) and can read trouble codes. The oil life system might have a code stored that's preventing the light from resetting. Clearing the code might resolve the issue.

* Consult your Owner's Manual: Your owner's manual should have specific instructions on how to reset the oil life monitor for your specific year and model Monte Carlo. It's worth looking at, as the method may be different than the common trick you tried.

* Dealer/Mechanic: If the above steps don't work, take your Monte Carlo to a mechanic or a Chevrolet dealer. They have the proper tools and knowledge to diagnose the problem and reset the system correctly. There might be an underlying issue with the oil life system sensor or the computer itself.

Why the simple trick might not work: The "accelerator pedal trick" often works on vehicles with simpler oil change reminder systems. Newer cars, and even some older ones, use more complex systems that are not reset this way. Your 2002 Monte Carlo likely uses a more advanced system which requires a proper reset via the OBD-II port or a specific procedure documented in your owner's manual.