* Check Engine Light (CEL): This is the most common culprit. It illuminates when the onboard diagnostics (OBD) system detects a problem. You cannot simply turn this light off. You need to diagnose and fix the underlying problem. This could be anything from a loose gas cap to a serious engine malfunction. You'll need an OBD-I code reader (specific to older vehicles) to get the diagnostic trouble codes (DTCs) to identify the issue.
* Oil Change Light: Some models might have a low oil pressure light or an indicator tied to the oil change interval (though less common on a '92). This light requires an oil change, filter change, and reset. The reset procedure is often done by briefly turning the ignition key to the "on" position but not starting the engine; consult your owner's manual for the specific steps. However, if you've already done the oil change, you might have a faulty oil pressure sensor.
* Other Warning Lights: Your Cherokee could have other indicator lights related to specific systems (e.g., brake system, battery). These lights require attention to the specific system causing the problem, not just a simple reset.
In short: Don't try to simply "turn off" the light. Find out *why* the light is on.
To determine what to do:
1. Consult your owner's manual: This is the best place to start. It will show you what each indicator light means and might include troubleshooting tips or reset procedures.
2. Identify the light: Note the symbol on the light. This will give clues about what system needs attention.
3. Get a code reader (OBD-I): If it's the check engine light, an OBD-I code reader is essential for finding the problem. Auto parts stores often can read the codes for free.
4. Inspect the relevant system: Once you have identified the likely problem area, inspect it visually. For instance, check your oil level if you suspect an oil-related issue.
Ignoring warning lights can lead to serious and costly damage to your vehicle. Proper diagnosis and repair are crucial.
