What you likely mean is one of the following, and the procedure differs greatly:
* Resetting the PCM (Engine Control Module): This often helps with minor electrical glitches affecting engine performance. The most common method is disconnecting the negative (-) terminal of the battery for about 30 minutes to an hour. This allows the computer to completely power down and clear its temporary memory. Reconnect the battery afterward.
* Resetting the radio: This is usually done through a specific button combination on the radio itself (often involving holding down certain buttons for a few seconds). Consult your owner's manual for the exact procedure for your radio model.
* Addressing a specific problem: If you're experiencing a particular problem (e.g., check engine light, erratic transmission), a "reset" might not be the solution. You'll need to diagnose the underlying issue using a diagnostic scanner (OBD-II reader) to identify and fix the problem's root cause. Simply resetting the PCM might not resolve a serious malfunction.
* Other modules: There are other control modules in the vehicle. Resetting these typically requires specialized tools and knowledge, and it's best left to a qualified mechanic.
In summary: For most common issues, disconnecting the negative battery terminal for 30-60 minutes is the closest equivalent to a "computer reset." However, if the problem persists after this, you need professional help to diagnose and fix the underlying mechanical or electrical fault. Always consult your owner's manual for specific instructions and safety precautions.
